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This appendix contains information about replacement procedures for the Cisco AS5800 Universal Access Server field-replaceable units (FRUs). The appendix contains the following sections:
Some of the procedures in this appendix require you to power off the access server. Where appropriate, you are referred to this section.
Powering off the access server involves removing power from the following components:
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
Step 1 Power OFF (O) the power switches located on the router shelf rear panel. (See Figure A-1.)
Step 2 Power OFF (O) the power switches located on each dial shelf PEM front panel. (See Figure A-2.)
Step 3 If you are using the optional AC-input power shelf, power OFF (O) the power switches located on the AC-input power shelf front panel. (See Figure A-3.)
Step 4 Power OFF the central office main circuit breaker.
This section provides a list of tools and parts you need, and explains how to remove and replace the PEMs in the dial shelf chassis.
You need the following items to remove and replace a PEM:
This section provides a list of tools and parts you need, and explains how to remove and replace the PEMs in the dial shelf chassis.
 | Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is removed from the DC-input or optional AC-input circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC-input or optional AC-input circuit, switch the circuit breaker to the OFF (O) position, and tape the switch handle of the circuit breaker in the OFF (O) position. |
| Warning When installing the unit, the ground connection must always be made first and disconnected last. |
 | Caution If your system requires the AC-input power shelf for AC-to-DC conversion, you should schedule a time for system maintenance and replace the PEM at that time. Refer to the document AC-Input Power Shelf and Power Supply Installation and Replacement (Part Number 78-4659-xx) for installation and replacement instructions. |
The following parts and tools are required to remove and replace the PEMs. If you need additional equipment, contact a service representative for ordering information.
The following procedure for hot swapping a PEM assumes you are not using the optional AC-input power shelf, and that each PEM in your dial shelf is connected to a separate DC power source. If you are removing and replacing a PEM in an AC-configured system, you must perform the replacement during a scheduled maintenance time and power off the entire system.
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
To remove a PEM, complete the following steps:
Step 1 Power OFF the central office circuit breaker connected to the PEM you are removing and tape the switch in the OFF position.
Step 2 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 3 Power OFF the power switch located on the PEM front panel. (See Figure 0-1.)
| Caution Terminal blocks may be energized. Ensure that the power source circuit breaker is disconnected, and the PEM power switch is in the OFF (O) position before accessing terminals. |
Step 4 Using a 1/4-inch flat-blade screwdriver, disconnect the DC cables from the DC-input power terminal block. (See Figure 0-1.)
Step 5 Unplug the alarm cable from the bell alarm terminal block. (See Figure 0-1.)
Step 6 Using a 1/4-inch flat-blade screwdriver, loosen the captive screws on the PEM front panel.
Step 7 Grasp the handle and carefully pull the PEM from the backplane connectors using a gentle rocking motion; then remove the PEM from the DC power supply chassis. (See Figure 0-2.)
This completes the PEM removal process. Proceed to the section "Replacing a Power Entry Module."
To install a new PEM, complete the following steps. (Refer to Figure 0-2 to locate the PEMs in the dial shelf.)
Step 1 Grasp the PEM handle and carefully align the PEM with the DC-input power supply bay.
Step 2 Slide the PEM into the power supply bay until it is fully seated and connected to the backplane connectors.
Step 3 Using a 1/4-inch flat-blade screwdriver, tighten the captive screws on the PEM front panel.
Step 4 Plug the alarm cables into the bell alarm terminal block. (See Figure 0-2.)
This completes the procedure for replacing a PEM in the dial shelf. To connect the PEM power cables and power on the PEM, proceed to the section "Connecting to Your DC Power Source."
If your site has access to a DC power source, you need to provide your own DC power cables. In the United States you need to use 6 AWG stranded or solid copper wire; elsewhere use 16 mm2 solid or 10 mm2 stranded copper wire.
To reconnect the PEM to your DC-input power source, complete the following steps:
Step 1 Locate the DC terminal block located on the dial shelf PEM front panel and loosen the connector screws using a 1/4-inch flat-blade screw driver. (See Figure 0-3.)
Step 2 Strip the DC power cable of its outer insulation to expose about 1/2-inch of copper wires.
Step 3 Connect the power cable stripped wires to the DC terminal block on the PEM and securely tighten the terminal block connector screws. (See Figure 0-3)
Step 4 Connect the other end of your DC power cables to your DC power source.
Step 5 Repeat Step 1 through Step 4 to connect your DC power cables to the second PEM.
Step 6 Power ON the central office circuit breaker connected to the PEM you are replacing.
Step 7 Power ON ( | ) the power switch located on the PEM front panel. (See Figure 0-1.)
This completes the procedure for replacing a PEM and connecting to your DC power source. Proceed to the section "Verifying and Troubleshooting the Installation" for installation troubleshooting tips.
If you are using the optional AC-input power shelf, you cannot remove and replace a PEM while the system is powered on.
| Caution If your system requires the AC-input power shelf for AC-to-DC conversion, you should schedule a time for system maintenance and replace the PEM at that time. Refer to the document AC-Input Power Shelf and Power Supply Installation and Replacement (Part Number 78-4659-xx) for installation and replacement instructions. |
To complete the installation, verify the power supply LEDs operate properly and that you have wired the DC-input connections correctly. Each PEM contains two LEDs on the front panel---POWER and MISWIRE. (Refer to Figure 0-1.)
This completes the procedures for installing and troubleshooting a power entry module. To verify that the PEM is properly installed, proceed to the chapter "Powering On the Access Server and Observing Initial Startup Conditions."
The Cisco AS5800 Universal Access Server is equipped with a passive DC power filter, which contains a broadband electromagnetic interference (EMI) filter and circuitry for monitoring power coming into the Cisco 5814 dial shelf. The DC power filter is housed in the filter module, which resides in the dial shelf between the two power entry modules (PEMs).
You need the following parts and tools to remove and replace the filter module. If you need additional equipment, contact a service representative for ordering information.
This procedure is ideally performed during a scheduled maintenance time. If not, you must first power off the dial shelf as follows:
Step 1 Power OFF (O) the power switch located on each dial shelf PEM front panel. (See Figure A-2.)
Step 2 If you are using the optional AC-input power shelf, power OFF (O) the power switches on the AC-input power shelf front panel. (See Figure 0-5.)
To remove the filter module from the dial shelf, complete the following steps:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Ensure the PEM green power LEDs are both off.
Step 3 Using a 1/4-inch flat-blade screwdriver, loosen the captive screws on the filter module front panel.
Step 4 If you are using the optional AC-input power shelf, disconnect the monitor cable DB-9 connector from the base of the filter module, as shown in Figure 0-6.
| Caution The filter module weighs 5.5 lb (2.5 kg). Use two hands when removing or replacing the filter module. |
Step 5 Grasp the filter module handle and gently pull the filter module about halfway out of the dial shelf chassis. (See Figure 0-7.)
Step 6 Holding the filter module handle with one hand, place your other hand under the module for support.
Step 7 Pull the filter module from the dial shelf chassis and place it in an antistatic bag to return to the factory.
This completes the filter module removal process. Proceed to the section "Replacing the Filter Module."
To replace the filter module, complete the following steps. When you are finished, use a Site Log sheet to record service maintenance.
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Using tow hands to guide it, gently push the new filter module into the dial shelf chassis until it connects firmly with the backplane.
| Caution When inserting the filter module, do not use unnecessary force as it can damage the connectors. |
Step 3 Using a 1/4-inch flat-blade screwdriver, tighten the captive screws.
Step 4 If you are using the optional AC-input power shelf, connect the monitor cable DB-9 connector at the base of the filter module and tighten the jackscrews. Verify that the DB-25 connector at the other end of the cable is connected to the AC-input power shelf (see Figure 0-6). Power ON the AC-input power shelf.
Step 5 Power ON ( | ) the power switches located on each dial shelf PEM front panel.
Step 6 Note service maintenance on your Site Log sheet.
This completes the procedure for removing and replacing the filter module.This completes the procedure for removing and replacing the filter module.
The AC-input power shelf is an optional component of the Cisco AS5800 Universal Access Server and is used to convert AC-input power into DC-output power for the DC-powered Cisco 5814 dial shelf. The AC-input power shelf contains two AC-input power supplies.
This section explains how to rack-mount the AC-input power shelf, attach the power cables, and verify the initialization after you power up the system. This document also explains how to remove and replace an individual power supply in the power shelf.
This section lists tools and parts you need to remove and replace individual power supplies, and explains how to install the AC-input power shelf in an equipment rack.
You need the following tools and parts to rack mount the power shelf:
You need the following tools and parts to remove and replace an individual power supply:
Use the following procedure if you are replacing a faulty power supply or if you want to reduce the weight of the power shelf before you install it in a rack. If you do not want to remove power supplies prior to rack-mounting the AC-input power shelf, skip this section and proceed to the section "Installing the Power Shelf in the Rack."
The AC-input power shelf is configured with two power supplies. You can remove or replace one of the power supplies without affecting system operation. When power is removed from one supply, the redundant power feature causes the second power supply to ramp up to full power and maintain uninterrupted system operation.
To remove a power supply, follow these steps:
| Caution A single power supply weighs 14.5 lb (6.6 kg). Use both hands when removing or replacing a power supply. |
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Ensure the power switch for the power supply you are removing is in the OFF (O) position.
Step 3 Lift the metal spring-clip in the center of the ejector lever to release the lock. (The power supplies are secured by self-locking ejector levers. (See Figure 0-8.)
Step 4 Apply downward pressure to the ejector lever to disconnect the power supply from the power backplane.
Step 5 Grasp the power supply handle and pull the power supply halfway out of the bay. Then with your other hand under the power supply to support it, pull the power supply completely out of the bay.
To replace the power supply, follow these steps:
Step 1 Slide the power supply into the power supply bay. Push the power supply fully into the power shelf until the front is flush against the power shelf frame. To prevent damage to the backplane connector, do not jam the power supply into the bay.
Step 2 Push the self-locking ejector lever upward until the metal spring-clip locks into place (listen for the click). (See Figure 0-8.)
This completes the power supply replacement procedure. Proceed to the section "Installing the Power Shelf in the Rack" to rack-mount the power shelf.
You install the power shelf in the rack by securing the permanent mounting flanges to two posts or mounting strips in the rack using the slotted mounting screws provided. Because the mounting flanges support the weight of the entire power shelf, be sure to use at least two slotted screws per mounting flange.
| Caution To maintain a low center of gravity, ensure that heavier equipment is installed near the bottom of the rack. |
| Caution The AC-input power shelf with both power supplies installed weighs approximately 47 lb (21.31 kg). Use caution when lifting the power shelf. Bend your knees and lift using your legs. Do not strain your back. |
To install the power shelf in the rack, follow these steps:
Step 1 Verify your path to the rack is unobstructed, and ensure that the rack is stabilized.
Step 2 Position the power shelf in front of the rack. To prevent injury, avoid sudden twists or moves.
Step 3 Lift and slide the power shelf into the rack, pushing it back until the front mounting flanges meet the mounting strips or posts on both sides of the equipment rack.
Step 4 Position the power shelf so that the holes in the mounting flanges are aligned to those in the mounting strips, while keeping the mounting flanges flush against the posts or mounting strips.
Step 5 Insert the 10-32 x 3/8-inch slotted screws (two screws per side at a minimum) through the power shelf mounting flange and into the mounting strip. Tighten all screws using a 1/4-inch flat blade screwdriver.
Figure 0-9 illustrates the AC-input power shelf installed in a 4-post rack.
To connect the power cables and power up the system, proceed to the section "Connecting the Power Cables and Powering Up the System."
You need to connect all cables between the AC-input power shelf and the dial shelf before you connect the power shelf to your AC power source. You also need to install the provided electrical connection safety cover at the rear of the power shelf before you power up the system.
| Warning This unit has more than one power cord. To reduce the risk of electric shock, disconnect the two power supply cords before servicing the unit. |
You need the following parts and tools to connect the power cables:
To connect the DC interconnect power cables, complete the following steps:
Step 1 Verify the AC-input power switches on the power shelf front panel are in the OFF (O) position.
Step 2 Attach two red DC interconnect power cable ring lugs to the terminal stud labeled "BUS +" on the AC power shelf chassis rear. (See Figure 0-10.)
Step 3 Secure the ring lugs to the threaded stud with a hex nut.
Step 4 Loosen the screws in each power entry module (PEM) DC terminal block, located on the back of the dial shelf. (See Figure 0-10.)
Step 5 Fit the exposed wire end of one red insulated cable into the DC terminal block labeled "-48V RTN" on each PEM and securely tighten the terminal block connector screws. (See Figure 0-10.)
Step 6 Attach two black DC interconnect power cable ring lugs to the terminal stud labeled "BUS -" on the AC power shelf chassis rear. (Refer to Figure 0-10.)
Step 7 Secure the ring lugs to the threaded terminal stud with a hex nut.
Step 8 Fit the exposed wire end of the black insulated cable into the DC terminal block labeled "-48V" on each PEM and securely tighten the terminal block connector screws. (See Figure 0-10)
This completes the DC power cabling installation. You must now connect the monitor cable from the AC-input power shelf to the dial shelf filter module.
To connect the monitor cable, complete the following steps:
Step 1 Attach the monitor cable DB-25 plug to the DB-25 receptacle on the rear of the AC-input power shelf. (See Figure 0-11.)
Step 2 Tighten the jackscrews.
Step 3 Attach the monitor cable DB-9 plug to the DB-9 receptacle at the base of the dial shelf filter module. (See Figure 0-11.)
Step 4 Tighten the jackscrews.
This completes the monitor cable installation. You must now ground the AC-input power shelf to the dial shelf.
To attach the ground cable between the AC-input power shelf and the dial shelf, complete the following steps:
Step 1 Attach the ground cable double ring lug to the ground posts on the rear of the AC-input power shelf. (See Figure 0-12, lower chassis.)
Step 2 Secure the double ring lug to both threaded ground posts with a hex nut on each stud.
Step 3 Thread an M4 screw through one hole of the double ring lug on the other end of the ground cable; then thread the screw into the threaded pemnut in the underside of the dial shelf chassis and partially tighten the screw. (See Figure 0-12, upper chassis.)
Step 4 Align the second ring lug hole with the second pemnut in the underside of the dial shelf chassis and thread a screw through the hole.
Step 5 Tighten both screws using a number 2 Phillips screwdriver.
This completes the ground cable installation. You must now connect the AC-input power cords.
To connect the AC power cords, complete the following steps:
Step 1 Plug each AC power cord into an AC receptacle on the AC-input power shelf rear. (See Figure 0-13.)
Step 2 Connect the opposite end of each power cord to an appropriate power source.
| Caution Do not plug the AC-input power shelf into the same power source as the router shelf or into the power strip on your equipment rack. The 20-amp connectors on the AC-input power shelf are incompatible with the power source used for the router shelf and with the 15-amp power strips used in most equipment racks. |
This completes the AC power cord installation.
For safety reasons, you must install the metal safety cover that shipped with your AC-input power shelf before you power up the system. The safety cover shields the power connections from possible short circuit and protects you from electrical shock.
To install the safety cover, follow these steps:
Step 1 Align the metal safety cover with the grooves on the back underside of the dial shelf. (See Figure 0-14.)
Step 2 Slide the safety cover into place and attach the front of the cover to the dial shelf with the screws provided.
| Warning The safety cover is an integral part of the product. Do not operate the unit without the safety cover installed. Operation of the unit without the safety cover in place will invalidate the safety approvals and pose a risk of fire and electrical hazards. |
This completes the AC-input power shelf installation.
After installing your AC-input power shelf and connecting the cables, you start up the system by powering on the following components:
To power on the system, complete the following steps:
Step 1 Power ON the central office main circuit breaker.
Step 2 Power ON ( | ) the power switches located on each dial shelf PEM front panel (see Figure 0-15). A green power LED on each PEM should light.
Step 3 Power ON ( | ) the two power switches located on the AC-input power shelf front panel (see Figure 0-16). Four green power OK LEDS should light.
Step 4 Power ON ( | ) the two power switches located on the router shelf rear. (See Figure 0-17.) Both green power supply OK LEDs should light.
Step 5 Listen for fans in both the router shelf and the dial shelf; you should hear them operating immediately.
This completes the process for installing and cabling the AC-input power shelf and for powering on the access server. For installation troubleshooting tips, proceed to the section "Verifying and Troubleshooting the Installation."
To complete the installation, verify that the power supply LEDs operate properly as follows. (Review the descriptions of the LEDs in the section "AC-Input Power Supply LEDs" section.)
If a power supply fails to operate properly after several attempts to initialize it, contact a service representative for assistance.
This completes the power supply installation. Refer to the Cisco AS5800 Universal Access Server Software Installation and Configuration Guide for descriptions and examples of software features and commands.
This document explains how to remove and replace the dial shelf controller card in the Cisco 5814 dial shelf chassis in the Cisco AS5800 Universal Access Server. Also included are instructions for verifying the installation. The dial shelf controller card serves as the interface between the dial shelf and the Cisco 7206 router shelf.
This section lists tools and parts you need, and explains how to remove and replace a dial shelf controller card in the Cisco 5814 dial shelf chassis.
In most cases, the Cisco 5814 dial shelf chassis is shipped with the dial shelf controller card already installed. When installing your Cisco 5814 dial shelf chassis in a rack, Cisco recommends you first remove all feature cards and dial shelf controller cards to reduce the overall chassis weight.
If your Cisco 5814 dial shelf chassis, feature cards, and dial shelf controller cards have been shipped separately, proceed to the section "Replacing a Router Shelf."
| Caution If your system is equipped with dual DSCs, Cisco recommends that you perform DSC card replacements during low traffic periods. Use the hw-module <shelf-id>/<slot-num> stop command to stop the backup DSC before you remove the backup (slave) DSC. |
The following parts and tools are required to remove and replace the dial shelf controller card. If you need additional equipment, contact a service representative for ordering information.
| Caution Dial shelf controller cards weigh 8.5 lb (3.8 kg) each. Use both hands when removing or replacing a dial shelf controller card (see Figure 0-19). |
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
| Caution If your system is equipped with dual DSCs, Cisco recommends that you perform DSC card replacements during low traffic periods. Use the hw-module <shelf-id>/<slot-num> stop command to stop the backup DSC before you remove the backup (slave) DSC. |
To remove a dial shelf controller card, complete the following steps:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
| Caution To prevent ESD damage, handle dial shelf controller cards by ejector levers and carrier edges only, and use an ESD-preventive wrist strap or other grounding device. |
Step 2 Disconnect all cables connected to the dial shelf controller card front panel.
Step 3 Using a number 2 Phillips screwdriver, loosen the 2 panel fasteners on the top and bottom of the dial shelf controller card front panel. (See Figure 0-18.)
Step 4 Grasp the top and bottom ejector levers (refer to Figure 0-18) and pull them away from the front panel to disengage the dial shelf controller card from the backplane connectors.
| Caution Do not use the ejector levers as handles to carry the card. They are not designed to support the weight of the card. |
Step 5 Carefully slide the dial shelf controller card partially out of the slot, until you can grasp the card front panel with one hand. Place your other hand under the card to support it. (See Figure 0-19.)
Step 6 Pull the dial shelf controller card straight out of the slot. Avoid touching the circuitry or any connector pins.
| Caution When inserting or removing the dial shelf controller card, do not use unnecessary force as it can damage the backplane connectors. |
| Caution Never allow anything other than the feature card or dial shelf controller card connectors to make contact with the backplane pins. |
| Caution Never insert any foreign or metallic object into the dial shelf chassis. Also, remove all jewelry and watches prior to placing your hands inside the dial shelf chassis. |
| Caution Dial shelf controller cards weigh 8.5 lb (3.8 kg) each. Use two hands when removing or replacing a dial shelf controller card. (See Figure 0-19.) |
| Caution If your system is equipped with dual DSCs, Cisco recommends that you perform DSC card replacements during low traffic periods. Use the hw-module <shelf-id>/<slot-num> stop command to stop the backup DSC before you remove the backup (slave) DSC. |
To replace a dial shelf controller card, complete the following steps:
| Caution Insertion or removal of a second DSC while there is already an active DSC may result in loss of calls. |
Step 1 Ensure your ESD-preventive wrist strap is attached between you and an unpainted chassis surface.
| Caution To prevent ESD damage, handle dial shelf controller cards by ejector levers and carrier edges only, and use an ESD-preventive wrist strap or other grounding device. |
Step 2 Carefully align the dial shelf controller card carrier guides with the top and bottom grooves in the dial shelf slot. Avoid touching the circuitry or any connector pins.
Step 3 Slide the replacement dial shelf controller card into the dial shelf slot until the ejector levers make contact with the chassis frame. (Refer to Figure 0-19 to orient yourself with the dial shelf and dial shelf controller card.)
| Caution When inserting or removing the dial shelf controller card, do not use unnecessary force as it can damage the backplane connectors. |
Step 4 Seat the dial shelf controller card in the backplane by pushing the card firmly until the ejector levers fold in toward the card front panel, and the front panel is flush with the chassis frame.
Step 5 Using a number 2 Phillips screwdriver, tighten the panel fasteners. This secures the backplane connection and ensures proper EMI shielding.
| Caution Always tighten the panel fasteners on dial shelf controller cards. These fasteners prevent accidental removal and provide proper grounding for the system. |
Step 6 Install a blank filler card (part number DS58-BLANK=) in all empty dial shelf card slots to keep the chassis dust free and to maintain proper air flow.
| Caution To prevent the overheating of internal components, always install blank filler cards in empty slots to maintain the proper flow of cooling air across the cards. |
This completes the steps for removing and replacing a dial shelf controller card. Proceed to the section "Connecting the Cables."
The dial shelf controller card includes a dial shelf interconnect cable to connect the card to the dial shelf interconnect port adapter in the Cisco 7206 router shelf. The connection between the dial shelf controller card and the dial shelf interconnect port adapter uses a single, full-duplex, interconnect cable, as shown in Figure 0-20.
To connect the dial shelf interconnect cable, complete the following steps:
| Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. |
Step 1 Attach one end of your interconnect cable to the port labeled "Dial Shelf Interconnect" on the dial shelf controller card front panel. (See Figure 0-29.)
Step 2 Tighten the jackscrews on either side of the connector.
Step 3 Attach the other end of your cable to the RJ-45 port on the interconnect port adapter in the Cisco 7206 router shelf.
Step 4 Tighten the jackscrews on either side of the connector.
| Caution Never disconnect the interconnect cable while the system is operating (except when replacing a redundant dial shelf controller card) or you will lose all calls. |
| Warning The ports labeled "Network clock," "10BaseT," "Dial Shelf Interconnect," "Console," and "Alarms" are safety extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because the E1/T1 circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the telephone network voltage (TNV) circuits. |
For more information about the dial shelf interconnect cable and dial shelf interconnect port adapter, refer to the document Cisco AS5800 Universal Access Server Dial Shelf Interconnect Port Adapter Installation and Replacement (Part Number 78-4663-xx).
Verify that your new dial shelf controller card is properly installed and operative by observing the card LEDs as follows:
MSTR
router> enable
enter password <password>
router# show diag <type {shelf | slot}>
Ctrl-Z
The Cisco 5814 dial shelf is designed to recognize dial shelf controller cards in specific slots within the dial shelf chassis. The backplane slots numbered 12 and 13 are the designated dial shelf controller card slots. This design supports redundancy features to further eliminate dropped calls.
The following new/modified commands have been added to support redundant DSC equipped systems.
| Command Level | Command | Description |
|---|---|---|
User | show redundancy [history] | The show redundancy command displays the current status of the DSC(s). The show redundancy hist command displays a table of the last 5 redundancy event to have occurred for each redundant component on the DSC(s). |
show tech-support | The show-tech-support command displays the output of the show redundancy and show redundancy history commands. | |
show debug | The show debug command displays the debug section for DSC Redundancy if any of its debugging is on. | |
User Exec | hw-module <shelf-id>/<slot-num> {start | stop} | The hw-module command is used to start or stop the DSC cards. The stop option requires confirmation prior to execution. |
[no] debug redundancy {all | clk | hub | ui} | The debug redundancy command turns debugging ON/OFF for the selected component(s). The components are
The no option turns debug redundancy OFF. | |
[no] debug all | The debug all command affected all DSC Redundancy debugging. The no option turns debugging OFF. |
Both the router shelf and the dial shelf contain PCMCIA slots for inserting Flash memory cards. The router shelf PCMCIA slots are located on the I/O controller and are oriented horizontally; the dial shelf PCMCIA slots are located on the dial shelf controller card and are oriented vertically. Except for the orientation of the slots, the installation procedures are the same for both shelves.
This section describes inserting and removing a Flash memory card in the dial shelf. For procedures specific to the router shelf, refer to the Cisco 7206 Router Installation and Configuration Guide that shipped with your router shelf.
The dial shelf controller card has 2 PCMCIA slots for Flash memory cards. The slots are numbered left to right, slot 0 and slot 1, respectively. Complete the following steps to insert a Flash memory card in either dial shelf controller card PCMCIA slot:
To install a Flash memory card, complete the following steps:
Step 1 Orient the Flash memory card so that the connector end faces the appropriate slot. (See Figure 0-22.)
Step 2 Carefully insert the card into the slot until it mates with the slot connector at the back of the slot. The eject button for the slot pops out toward you.
To remove a Flash memory card from the PCMCIA slot, complete the following steps (see Figure 0-22):
Step 1 Press the ejector button on the slot.
Step 2 Grasp the card and pull it from the slot.
Step 3 Place the card in an antistatic bag.
This completes the dial shelf controller card and Flash memory installation procedures.
The Cisco AS5800 Universal Access Server is equipped with a blower assembly, which is designed to monitor system internal operating temperatures and maintain acceptable cooling parameters.
This section lists tools and parts you need, and explains how to remove and replace the blower assembly in the dial shelf chassis.
You need the following parts and tools to remove and replace the blower assembly. If you need additional equipment, contact a service representative for ordering information.
| Caution The system will shut down two minutes after the system temperature threshold has been reached. Although normal blower assembly replacement is estimated not to exceed 30 seconds, if you expect the replacement process to exceed one minute, we recommend that you shut down the system prior to the removal and replacement process. |
| Caution The blower assembly weighs 27.5 lb (12.5 kg). Use two hands when removing or replacing the blower assembly. |
To remove the blower assembly, complete the following steps:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Loosen the two captive screws on the blower assembly front panel. (See Figure 0-23.)
Step 3 Grasp the blower assembly handle with one hand and pull the blower assembly straight toward you about half way out of the slot.
Step 4 Place your other hand under the blower assembly as it extends from the dial shelf chassis to support the blower and prevent it from falling.
Step 5 Slowly pull the blower assembly all the way out of the slot and place it on an antistatic mat or in packaging to return it to the factory.
This completes the blower assembly removal process. Proceed to the section "Replacing the Blower Assembly."
To replace the blower assembly in the dial shelf, complete the following steps. Refer to Figure 0-23 to orient yourself with the dial shelf chassis and the blower assembly. When you are finished, use a Site Log sheet to record service maintenance.
| Caution The blower assembly weighs 27.5 lb (12.5 kg). Use two hands when removing or replacing the blower assembly. |
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Place one hand on the blower assembly handle and place your other hand under the blower assembly to support the weight.
Step 3 Position the blower assembly in the opening and slide it fully into the chassis until the backplane connectors mate.
Step 4 Using a 1/4-inch flat-blade screwdriver, tighten the two captive screws on the blower assembly front panel.
Step 5 Note service maintenance on your Site Log sheet.
This completes the blower assembly installation procedure. Proceed to the section "Verifying and Troubleshooting the Installation" to verify your installation.
To verify that the blower assembly is properly installed and operational, complete the following steps:
Step 1 Listen to verify the fans are operative. In noisy environments, you might want to place your hand to the rear of the blower assembly and feel for air flow from the exhaust vent.
Step 2 Verify the green power LED on the blower assembly front panel lights.
If the power LED remains off, verify the blower assembly is fully installed in the dial shelf and the connector is firmly connected to the backplane; verify the captive screws are adequately tightened.
Step 3 Verify the yellow fault LED on the blower assembly front panel remains off.
If the fault LED lights, the newly installed blower assembly might be faulty, or the chassis connector might be damaged. Shut off system power; remove the blower assembly from the dial shelf, and check the connectors. If the connectors are in good condition, reinstall the blower assembly in the dial shelf and power ON the system.
If the fault LED is still on, assume the blower assembly is faulty. Install another blower assembly and return the faulty blower assembly to the factory.
This completes troubleshooting the blower assembly.
The Cisco AS5800 Universal Access Server is equipped with a dial shelf interconnect port adapter that provides the connection between the Cisco 7206 router shelf and the Cisco 5814 dial shelf. The interconnect port adapter installs in the router shelf and connects to the dial shelf via a full-duplex, 100-Mbps interconnect cable.
Depending on your circumstances, you might need to install a new dial shelf interconnect port adapter in a Cisco 7206 router shelf or replace a failed adapter. In either case, no installation tools are necessary; the dial shelf interconnect port adapter connects directly to the router midplane and locks into position by a port adapter lever. The dial shelf interconnect port adapter has no configurable ports.
The Cisco 7206 router shelf supports OIR; however, unless you have installed a second dial shelf interconnect port adapter and established a redundant connection to the dial shelf, you must either reload the entire system software after removing and replacing a dial shelf interconnect port adapter in an operating system, or you must power off the system during the replacement procedure.
You reload the system software at the router shelf console using the reload command. For a detailed description of the reload command, refer to the Configuration Fundamentals Command Reference publication available on the documentation CD-ROM that shipped with your system.
If you power off and restart the system, the system software automatically reboots. For instructions on powering off and powering on the access server, refer to the Cisco AS5800 Universal Access Server Hardware Installation and Configuration Guide that shipped with your system.
You need the following equipment and parts to install the dial shelf interconnect port adapter. If you need additional equipment, contact a service representative for ordering information.
Use the following procedure to remove the dial shelf interconnect port adapter from the Cisco 7206 router shelf:
Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Step 2 Place the adapter lever for the desired adapter slot in the unlocked position. (See Figure 0-24.)
Step 3 Disconnect the dial shelf interconnect cable from the interconnect port adapter.
Step 4 Grasp the handle and pull the interconnect port adapter out of its slot, disconnecting it from the router shelf midplane.
| Caution Always handle adapters by the metal carrier edges and handle; never touch the adapter components or connector pins. |
Step 5 Place the interconnect port adapter on an antistatic surface with its components facing upward. If you are returning the port adapter to the factory, immediately place it in a static shielding bag.
This completes the procedure for removing the dial shelf interconnect port adapter from the Cisco 7206 router shelf. Proceed to the section "Replacing the Dial Shelf Interconnect Port Adapter."
Use the following procedure to install a new dial shelf interconnect port adapter in the Cisco 7206 router shelf:
Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Step 2 Hold the interconnect port adapter component-side facing downward.
Step 3 Align the left and right edges of the interconnect port adapter's metal carrier between the guides in the slot. (See Figure 0-26.)
Step 4 Slide the interconnect port adapter into the slot until the connectors are properly seated in the midplane.
Step 5 Place the adapter lever in the locked position, as shown in Figure 0-24.
This completes the procedure for installing a new dial shelf interconnect port adapter in the Cisco 7206 router shelf. Proceed to the section "Attaching the Dial Shelf Interconnect Cable."
The interconnect port adapter provides a single dial shelf interconnect receptacle. For a redundant connection to the dial shelf, you need to install a second port adapter.
| Caution Do not use the dial shelf interconnect port adapter for any outgoing WAN connections. |
Connect the dial shelf interconnect cable as follows:
Step 1 Attach the interconnect cable directly to the RJ-45 port on the interconnect port adapter.
Step 2 Tighten the jackscrews on either side of the connector.
Step 3 Attach the other end of your interconnect cable to the port labeled "Dial Shelf Interconnect" on the Cisco 5814 dial shelf controller card. (See Figure 0-29.)
| Warning The ports labeled "Network clock," "10BaseT," "Dial Shelf Interconnect," "Console," and "Alarms" are safety extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because the E1/T1 circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the telephone network voltage (TNV) circuits |
Step 4 Tighten the jackscrews on either side of the connector.
Step 5 Reload the system software using the reload command in EXEC mode, or restart the access server to reboot the system software.
This completes the dial shelf interconnect cable installation procedure. To verify the installation, proceed to the section "Verifying and Troubleshooting the Installation."
To complete the installation, verify the LEDs operate properly by observing the following LED states on the dial shelf interconnect port adapter:
This completes the dial shelf interconnect port adapter installation. Refer to the Cisco 7206 Installation and Configuration Guide that shipped with your router shelf for hardware troubleshooting procedures. Refer to the Cisco AS5800 Universal Access Server Software Installation and Configuration Guide that shipped with your Cisco AS5800 Universal Access Server for software verification, configuration procedures, and examples.
This section explains how to install and configure dual Cisco 7206 router shelves in the Cisco AS5800 Universal Access Server to implement the split dial shelf configuration. Also included are instructions for verifying and troubleshooting the installation.
Your Cisco 7206 chassis is fully assembled at the factory; no assembly is required. However, you will need the following tools and equipment to remove and replace the router chassis. If you need additional equipment, contact a service representative for ordering information.
In addition, you might need the following external equipment:
 | Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
| Warning To prevent the rack from tipping when removing the router from telco-type racks, ensure that the rack is bolted to the floor and, if necessary, anchored with appropriate fixtures. |
 | Caution Cisco 7206 router shelves can weigh up to 50 lb (22.7 kg) each. Use both hands when removing or replacing a router shelf. |
| Caution If your system is equipped with dual router shelves, Cisco recommends that you perform router replacements during low traffic periods. |
To remove the Cisco 7206 router shelf, complete the following steps:
Step 1 Make sure that your path to the rack is unobstructed. If the rack is on wheels, ensure that the brakes are engaged or that the rack is otherwise stabilized.
Step 2 On the chassis, ensure that all captive screws on the network processing engine, the I/O controller, and each power supply are tightened and the port adapter levers are in the locked position.
| Caution Before removing the mounting screws from the rack-mount brackets, and to avoid injury, we recommend that two people remove the chassis from the rack. One person should support the chassis in the rack while the second person removes the mounting screws. |
Step 3 Using a 1/4-inch, flat-blade screwdriver, remove all six 10-32 x 3/8 slotted screws (three on each side) from the rack mount brackets, as shown in Figure 0-28.
If you rack-mounted the Cisco 7206 router from the rear, the rack mount brackets are installed at the rear of the chassis. You must remove the mounting screws from both brackets before you can remove the chassis from the rack.
| Warning To prevent damage to the chassis or personal injury, never attempt to lift or tilt the Cisco 7206 using the port adapter handles or the I/O controller handle; they are not designed to support the weight of the router. Always have someone help you when removing the Cisco 7206. |
Step 4 Slide the chassis out of the rack, pulling it out until the brackets (installed at the front or rear of the chassis) clear the mounting strips or posts on both sides of the equipment rack.
This completes the procedure for removing the chassis from the rack.
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
| Caution Cisco 7206 router shelves can weigh up to 50 lb (22.7 kg). Use two hands when removing or replacing a router shelf. |
| Caution If your system is equipped with dual router shelves, Cisco recommends that you perform router replacements during low traffic periods. |
For detailed instructions about how to replace the Cisco 7206, refer to the chapter "Installing the Cisco 7206" in the Cisco 7206 Installation and Configuration Guide (Document Number DOC-7206-ICG=).
To connect the dial shelf interconnect cables, complete the following steps:
| Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. |
Step 1 Attach one end of an interconnect cable to the port labeled "Dial Shelf Interconnect" on one of the DSC front panels. (See Figure 0-29.)
Step 2 Tighten the jackscrews on either side of the connector.
Step 3 Attach the other end of the interconnect cable to the RJ-45 port on the interconnect port adapter in one of the Cisco 7206 router shelves.
Step 4 Tighten the jackscrews on either side of the connector.
Step 5 Repeat Step 1 through Step 4 for the other dial shelf interconnect cable.
| Caution Never disconnect a dial shelf interconnect cable while the system is operating (except when replacing a DSC or a router shelf) or you will lose all calls. |
| Warning The ports labeled "Network clock," "10BaseT," "Dial Shelf Interconnect," "Console," and "Alarms" are safety extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because the E1/T1 circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the telephone network voltage (TNV) circuits. |
For more information about the dial shelf interconnect cable and dial shelf interconnect port adapter, refer to the document Cisco AS5800 Universal Access Server Dial Shelf Interconnect Port Adapter Installation and Replacement (Part Number 78-4663-xx).
Both the router shelf and the dial shelf contain PCMCIA slots for inserting Flash memory cards. The router shelf PCMCIA slots are located on the I/O controller and are oriented horizontally; the dial shelf PCMCIA slots are located on the DSC and are oriented vertically. Except for the orientation of the slots, the installation procedures are the same for both shelves.
This section describes inserting and removing a Flash memory card in a router shelf. For procedures specific to the dial shelf, refer to the Cisco AS5800 Access Server Hardware Installation and Configuration Guide (Document Number DOC-AS5800-HICG=) that shipped with your dial shelf.
The I/O controller has two PCMCIA slots for Flash memory cards: slot 0 (lower) and slot 1 (upper). Complete the following steps to insert a Flash memory card in either PCMCIA slot:
Step 1 Orient the Flash memory card so that the connector end faces the appropriate slot. (See Figure 0-22a.)
Step 2 Carefully insert the card into the slot until the card seats in the connector at the back of the slot and the eject button for the slot pops out toward you. (See Figure 0-22b.)
To remove a Flash memory card from either PCMCIA slot, complete the following steps:
Step 1 Press the ejector button on the slot. (See Figure 0-22c.)
Step 2 Grasp the card and pull it from the slot. (See Figure 0-22a.)
Step 3 Place the card in an antistatic bag.
This completes the steps for inserting and removing a Flash memory card.
This completes the router shelf and Flash memory installation procedures.
After installing your Cisco 7206 and connecting the cables, start each router as follows:
Step 1 Check for the following:
Step 2 At the rear of the router, place the power switch on the power supply in the ON (|) position. Repeat this if a second power supply is installed. The green OK LED on the power supply goes on.
Step 3 Listen for the fans; you should immediately hear them operating. If not, immediately place the power switch on the power supply in the OFF (0) position and proceed to the "Verifying and Troubleshooting the Installation" section.
Step 4 During the boot process, observe the system LEDs. The LEDs on most of the port adapters go on and off in irregular sequence. Some may go on, go out, and go on again for a short time. On the I/O controller, the IO power OK LED comes on immediately.
Step 5 Observe the initialization process. When the system boot is complete (in a few seconds), the network processing engine begins to initialize the port adapters and the I/O controller. During this initialization, the LEDs on each port adapter behave differently (most flash on and off). The enabled LED on each port adapter goes on when initialization is completed, and the console screen displays a script and system banner similar to the following:
Cisco Internetwork Operating System Software IOS (tm) 7200 Software (C7200-J-M), Version 11.3(6.3)AA Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Sun 21-Oct-98 04:10 by
Step 6 When you start up the Cisco 7206 for the first time, the system automatically enters the setup command facility, which determines which port adapters are installed and prompts you for configuration information for each one. On the console terminal, after the system displays the system banner and hardware configuration, you will see the following System Configuration Dialog prompt:
--- System Configuration Dialog --- At any point you may enter a questions mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'. Continue with configuration dialog? [yes]:
You have the option of proceeding with the setup command facility to configure the interfaces, or exiting from setup and using configuration commands to configure global (system-wide) and interface-specific parameters. You do not have to configure the interfaces immediately; however, you cannot enable the interfaces or connect them to any networks until you have configured them.
Many of the port adapter LEDs will not go on until you have configured the interfaces. To verify correct operation of each interface, complete the first-time start-up procedures and configuration, then refer to the configuration note for each port adapter for LED descriptions and to check the status of the interfaces.
The split mode is intended to support two router shelves connected to a single dial shelf. To use this arrangement as intended, both router shelves should have split dial shelf configured. However, a second router is not required; a single router can run in split mode with all slots owned by that router.
Split dial shelf configuration is implemented by connecting two router shelves to a single dial shelf. You allocate the slots in the dial shelf between the two router shelves to achieve the desired configuration. The two router shelves are both configured to run in split mode by means of a new top level router configuration command:
dial-shelf split slots {slot-numbers}where slot-numbers is a list of the dial shelf slot numbers (from 0 through 11) that the router owns, with the slot numbers separated by spaces. Slot ownership for each of the two router shelves is configured individually using the dial-shelf split slots command.
When you configure a Cisco AS5800 system to operate in split mode, it is the same as having two Cisco AS5800 systems with each having a separate set of feature boards assigned to its router; they just happen to be sharing a single dial shelf. Modem pooling, for example, is the same as if you had two separate Cisco AS5800 systems. Router shelf 1 has a modem pool that consists of all the modem cards that reside in slots owned by router shelf 1. The same situation applies to router shelf 2.
This section describes the procedure required to transition a router from normal mode to split mode, and changing the set of slots a router owns while it is in split mode. Since the process of switching the ownership of a slot from one router to the other is potentially disruptive (when a feature board is restarted, all calls through that card are lost), a router shelf cannot take over a slot until ownership is relinquished by the router that currently claims ownership, either by reconfiguring the router or disconnecting that router or its associated DSC.
The dial shelf is split by dividing the ownership of the feature boards between the two router shelves. You must configure the division of the dial shelf slots between the two router shelves so that each router controls an appropriate mix of trunk and modem cards. Each router shelf controls its set of feature boards as if those were the only boards present. There is no interaction between feature boards owned by one router and feature boards owned by the other router.
Split mode is entered when the dial-shelf split slots command is parsed on the router shelf. This can occur when the router is starting up and parsing the stored configuration, or when the command is entered when the router is already up. On parsing the dial-shelf split slots command, the router frees any resources associated with cards in the slots that it no longer owns, as specified by exclusion of slot numbers from the slot-numbers argument. The router should be in the same state as if the card had been removed from the slot; all calls through that card will be terminated. The configured router then informs its connected DSC that it is in split mode, and which slots it claims to own.
In split mode, a router shelf uses only half of the 1,792 available TDM timeslots. (See the "TDM Resource Allocation" section.) If a dial-shelf split slots command is entered when the total calls using timeslots exceeds the number that would normally be available to the router in split mode, the command is rejected. This should occur only when a change to split mode is attempted where the dial shelf has more than 896 calls in progress (more than half of the 1,792 available timeslots). Otherwise, a transition from normal mode to split mode can be made without disturbing the cards in the slots that remain owned, and calls going through those cards will stay up.
To transition from normal mode to split mode, complete the following steps:
Step 1 Ensure that both DSCs and both router shelves are running the same IOS image.
Having the same version of IOS running on both DSCs and both router shelves is not mandatory; however, it is a good idea. There is no automatic checking that the versions are the same.
Step 2 Schedule a time when the Cisco AS5800 can be taken out of service without unnecessarily terminating calls in progress.
The entire procedure for transitioning from normal mode to split mode should require approximately one hour if all the hardware is already installed.
Step 3 Busy out all feature boards and wait for your customers to log off.
Step 4 Reconfigure the existing router shelf to operate in split mode.
Enter the dial-shelf split slots {slot-numbers} command, specifying the slot numbers that are to be owned by the existing router shelf.
Step 5 Configure the new router shelf to operate in split mode on other feature boards.
Enter the dial-shelf split slots {slot-numbers} command, specifying the slot numbers that are to be owned by the new router shelf. Do not specify any of the slot numbers that you specified in Step 4. The range of valid slot numbers is 0 through 11.
Step 6 Install the second DSC, if it has not already been installed.
Step 7 Connect the DSIC cable from the second DSC to the new router shelf.
Step 8 Ensure that split mode is operating properly.
Enter the show dial-shelf command for each router. This command has been extended so that the response indicates that the router shelf is running in split mode and which slots the router shelf owns. The status of any cards in any owned slots is shown, just as they are in the present show dial-shelf command.
Step 9 Enable all feature boards to accept calls once again.
You can change the sets of slots owned by the two router shelves while they are in split mode by first removing slot(s) from the set owned by one router, then adding them to the slot set of the other router. The changed slot set information is sent to the respective DSCs, and the DSCs determine which slots have been removed and which added from the new slot set information. It should be clear that moving a slot in this manner will disconnect all calls that were going through the card in that slot.
To move a slot from one router shelf's control to the others, the router releasing the slot should be modified first by entering the dial-shelf split slots remove command, specifying the slot numbers to be released. The released slot(s) can then be added to the slot set of the other router by re-entering the dial-shelf split slots command including the new slot number(s).
Split mode is exited when the dial shelf configuration is changed by a no dial-shelf split slots command. When the split dial shelf line is removed, the router shelf will start using all of the TDM timeslots. Feature boards that were not owned in split mode, and are not owned by the other router, will be reset. Cards in slots that are owned by the other router will be reset, but only after the other DSC has been removed or is no longer claiming the slots. The split dial shelf configuration should not be removed while the second router shelf is still connected to the dial shelf.
When a router configured in split mode fails, all calls associated with the failed router are lost. Users cannot connect back in until the failed router recovers and is available to accept new incoming calls; however, the other split mode router shelf will continue to operate normally.
The system will behave as configured as soon as the configuration is changed. The exception is when there is a misconfiguration, such as one router is configured in split mode and the other router is configured in normal mode, or both routers are configured in split mode and both claim ownership of the same slot(s).
Problems can arise if one of the two routers connected to a dial shelf is not configured in split mode, or if both are configured in split mode and both claim ownership of the same slot(s). If the state of the second router is known when the dial-shelf split slots command is entered and the command would result in a conflict, the command is rejected.
If a conflict in slot ownership does arise, both routers will receive warning messages until the conflict is resolved. Any card in a slot which is claimed by both routers remains under the control of the router that claimed it first, until you can resolve the conflict by correcting the configuration of one or both routers.
It should be noted that there can also be slots that are not owned by either router (orphan slots). Cards in orphan slots cannot boot up until one of the two routers claims ownership of the slot because neither DSC will download bootstrap images to cards in unowned orphan slots.
In normal mode, all show commands will look and behave as they do in the current system. In split mode, most show commands will look and behave as they would in the current system if there were no cards in the slots for which the other router has configured ownership. This is consistent with the view of a split dial shelf configuration being basically two separate Cisco AS5800 systems. A router shelf cannot manage, or even know the state of, any cards in slots that it does not own. For example, DSIP console and execute-on commands work only on owned slots.
There are, however, a few exceptions:
pinetopRS#sh dial-shelf
System is in split dial shelf mode.
Slots owned: 0 2 3 4 5 6 (connected to DSC in slot 13)
Slot Board CPU DRAM I/O Memory State Elapsed
Type Util Total (free) Total (free) Time
0 CE1 0%/0% 21341728( 87%) 8388608( 45%) Up 01:11:37
2 CE1 0%/0% 21341728( 87%) 8388608( 45%) Up 01:11:37
4 Modem(HMM) 20%/20% 6661664( 47%) 6291456( 33%) Up 01:11:37
5 Modem(DMM) 0%/0% 6661664( 31%) 6291456( 32%) Up 01:11:37
6 Modem(DMM) 0%/0% 6661664( 31%) 6291456( 32%) Up 01:11:37
13 DSC 0%/0% 20451808( 91%) 8388608( 66%) Up 01:16:31
Dial shelf set for auto boot
pinetopRS#sh dial-shelf split System is in split dial shelf mode, connected to DSC in slot 13. Slots owned: 0 2 3 4 5 6 Non owned slots: Slot Board Type 1 CE1 7 Modem(DMM) 8 Modem(DMM) 9 Modem(DMM) 10 Slot Empty 11 Slot Empty 12 DSC
If you are installing split dial shelf systems, a system controller is available that provides a single system view of multiple POPs. The system controller for the Cisco AS5800 Universal Access Server includes the Cisco 3640 router running Cisco IOS software. The system controller can be installed at a remote facility so that you can access multiple systems through a console port or Web interface.
There are no new Management Information Bases (MIBs) or MIB variables required for the split dial shelf configuration. A split dial shelf appears to Simple Network Management Protocol (SNMP) management applications as two separate Cisco AS5800 systems. One console to manage the whole system is not supported---you must have a console session per router shelf (two console sessions) to configure each split of the Cisco AS5800. The system controller must manage a split dial shelf configuration as two separate Cisco AS5800 systems.
The normal mode configuration of the Cisco AS5800 requires the dial shelf and router shelf IDs to be different. In a split system, four unique shelf IDs are desirable; one for each router shelf and one for each of the slot sets; however, a split system will function satisfactorily if the router shelf IDs are the same. If a system controller is used to manage a split dial shelf configuration, then the two routers must have distinct shelf IDs, just as they must when each router has its own dial shelf.
You can download software configurations to any Cisco AS5800 using SNMP or a Telnet connection. The system controller also provides performance monitoring and accounting data collection and logging.
In addition to the system controller, a network management system with a graphical user interface (GUI) runs on a UNIX SPARC station and includes a database management system, polling engine, trap management, and map integration.
To configure a router for split dial shelf operation, complete the following steps:
| Step | Command | Description |
|---|---|---|
1 | Router> enable | Enter the enable command. |
2 | Router# configure terminal | Enter global configuration mode by typing the configure command. The example is using the terminal configuration option. You are in global configuration mode when the prompt changes to Router(config)# |
3 | Router(config)# dial-shelf
split slots {slot_numbers}
| Normal mode: This command changes the router shelf to split mode with ownership of the slots listed. In case of conflicting slot assignments, the command is rejected and a warning message is issued. Issue a show dial-shelf split slots command to the other router shelf to display its list of owned dial shelf slots. OIR events on all slots are detected by both DSCs and added to the list of feature boards physically present in the dial shelf; however, OIR event processing is done only for assigned slots. Split mode: This command adds the dial shelf slot(s) listed to the router shelf's list of owned dial shelf slots. |
The following additional commands have been added to support split dial shelf systems:
| Level | Command | Description |
|---|---|---|
Global | Router (config) # show dial-shelf split | Normal Mode: This command is invalid. Split Mode: This command displays the slots assigned to each of the router shelves and the corresponding feature boards in `orphan' slots (slots not currently assigned to either router). |
Router (config) # dial-shelf split slots none | Normal mode: This command puts the router shelf in split mode; however, it does not assign ownership of any dial shelf slots.
Split mode: This command will change dial shelf slot ownership. The router will no longer have ownership of any dial shelf slots. | |
Router (config) # no dial-shelf split slots | Normal mode: This command has no effect. If the router shelf is in normal mode, it stays that way. Split mode: This command changes the router shelf to normal mode if it is in split mode and the other router shelf has already relinquished control of all dial shelf slots or is switched off. | |
Router (config) # dial-shelf split
slots {slot_numbers}
| Normal mode: This command changes the router shelf to split mode with ownership of the slots listed. Valid slot numbers are 0 through 11.
Split mode: This command adds the dial shelf slot(s) listed to the router shelf's list of owned dial shelf slots. The effect of multiple commands is cumulative. | |
Router (config) # dial-shelf split
slots remove {slot_numbers}
| Normal mode: This command has no effect. Split mode: This command removes the dial shelf slot(s) listed from the router shelf's list of owned dial shelf slots. The effect of multiple commands is cumulative. |
If the system does not complete each of the steps in the start-up procedure, proceed to the "Verifying and Troubleshooting the Installation" section for troubleshooting recommendations and procedures.
New error messages for various split dial shelf conditions include:
Explanation The configuration commands for the master clock specify the clock sources and a priority for each source. Together these commands define a prioritized list of the clock sources used to generate the master clock. This list, configured on the router shelf, is passed to and stored by the DSC providing the active clock. In the event of failure of the highest priority clock source, the DSC switches to the source with the next highest priority.
With a split dial shelf, clock sources can be configured on either of the router shelves from the slots that each shelf owns. On the dial shelf, all valid clock source configurations are known to the DSC providing the clock, including the clock source configurations on the other router/DSC.
This error condition results when a clock input on one router is configured to have the same priority as one configured on the other router. The original configuration command is not rejected; however, these error messages are issued to both routers when a duplicate priority condition is detected. The two clock inputs specified with identical priorities both go into the ordered list of clock sources, but the one received first by the DSC providing the active clock is assigned a higher priority.
Recommended Action Reconfigure the clock sources on the two routers so that they have different priorities.
Explanation The split mode is intended to support two router shelves connected to a single dial shelf. To use this arrangement, both connected router shelves should have split dial shelf configured. Problems can arise if there are two routers connected to the dial shelf, but one router is not configured in split mode.
Recommended Action Issue a dial-shelf split slots command to this router or a no-dial-shelf split slots command to the other router; however, there's no point in having a second router shelf unless both routers are in split mode.
Explanation The split mode is intended to support two router shelves connected to a single dial shelf. To use this arrangement, both connected router shelves should have split dial shelf configured. Problems can arise if there are two routers connected to the dial shelf, but one router is not configured in split mode.
Recommended Action Issue a dial-shelf split slots command to the other router or a no-dial-shelf split slots command to this router; however, there's no point in having a second router shelf unless both routers are in split mode.
Explanation Each router shelf connects to one of the DSCs in the dial shelf. The dial shelf feature boards are divided between the two router shelves. Each router controls its own set of feature boards as if those were the only boards present---there is no interaction between feature boards owned by one router and feature boards owned by the other router, or with the other router.
This error message was issued because both routers are configured in split mode, but there is an overlap in the set of slots each router claims. While the conflict in slot ownership continues, both router shelves will periodically receive this error message.
Recommended Action Correct the configuration of one of the routers by issuing a dial-shelf split slots command with a list of slot numbers that does not include the slot that is reporting overlapping ownership. You must configure the division of the dial shelf slots between the two router shelves so that each router controls an appropriate mix of trunk and modem cards. Any card in a slot that is claimed by both routers will remain under the control of the router that claimed it first until you resolve the conflict by correcting the configuration.
Your Cisco 7206 routers went through extensive testing before leaving the factory. However, if you encounter problems starting the routers, use the information in the chapter "Troubleshooting the Installation" in the Cisco 7206 Installation and Configuration Guide (Document Number DOC-7206-ICG=) to help isolate the cause of the problems. Make sure to review the safety warnings listed in the publication Regulatory Compliance and Safety Information for the Cisco 7200 Series Routers (Part Number 78-3419-xx) that accompanied your Cisco 7206 before using troubleshooting procedures.
If you are unable to easily solve the problem, contact a customer service representative for assistance and further instructions. Be prepared to provide the representative with the following information:
Figure 0-31 shows the general troubleshooting strategy for Cisco 7206 routers. Refer to this chart, as necessary, to isolate problems to a specific subsystem; then resolve the problem if possible.
The key to solving problems with the system is isolating the problem to a specific subsystem. The first step in solving start-up problems is to compare what the system is doing to what it should be doing. Because a start-up problem is usually caused by a single component, it is more efficient to first isolate the problem to a subsystem rather than troubleshoot each component in the system. For these troubleshooting procedures, consider the following subsystems:
You can quickly verify that your new router shelf is properly installed and operative by observing the router LEDs as described in the "Starting the Cisco 7206" section."
The Cisco AS5800 Access Server includes a passive backplane in the Cisco 5814 dial shelf that can be ordered as a spare. This document explains how to remove and replace the backplane in the Cisco 5814 dial shelf chassis.
This section lists tools and parts you need, and explains how to remove and replace the backplane in the dial shelf chassis. In most cases, the Cisco 5814 dial shelf chassis will be fully installed to include the dial shelf controller card and feature cards. As part of the backplane removal, you must unseat all cards from the dial shelf backplane.
| Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is removed from the DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF (O) position, and tape the switch handle of the circuit breaker in the OFF (O) position. |
| Warning When installing the unit, the ground connection must always be made first and disconnected last. |
In this section you will be instructed to perform the following actions:
1. Power off the router shelf and the dial shelf
2. Disconnect power and alarm cables to the PEMs
3. Unseat the dial shelf controller card(s) and feature cards from the backplane
4. Remove the PEMs, filter module, and dial shelf back panel
5. Disconnect the blower assembly backplane cable
6. Unscrew the backplane and remove it from the dial shelf
The following parts and tools are required to remove and replace the backplane module. If you need additional equipment, contact a service representative for ordering information. Estimated time to remove and replace the dial shelf backplane is 30 minutes.
The backplane cannot be removed while the system is powered on. This procedure is ideally performed during a scheduled maintenance time. If not, you must first power off the system as follows:
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
Step 1 Power OFF (O) the Cisco 7206 router shelf using the power switches located on the router shelf rear panel. (See Figure A-1.)
Step 2 Power OFF (O) the dial shelf at the power entry modules (PEMs) using the power switches located on the PEM front panels. (See Figure A-2.)
Step 3 If you are using the optional AC-input power shelf, power OFF (O) the AC-input power supplies using the power switches located on the power shelf front panel. (See Figure A-3.)
Step 4 Power OFF the central office main circuit breaker.
To continue, you must next disconnect power cables and and alarm cables to the dial shelf PEMs.
Step 1 Loosen the screws in the DC-input power terminal blocks and the alarm terminal blocks using a 1/4-inch flat-blade screwdriver, and disconnect power cables and alarm cables to the dial shelf PEMs. Figure 1-4 shows the location of the terminal blocks.
The following steps refer to the optional AC-input power shelf. If you are using a DC power source, you can skip Step 2 and Step 3.
Step 2 Disconnect the monitor cable DB-9 connector from the base of the filter module (see Figure 1-5).
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Step 3 Disconnect power cables to the optional AC-input power shelf. (See Figure 1-6.)
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After you disconnect the the cables, you must disconnect the dial shelf controller cards and feature cards from the backplane connectors. You do not need to remove the cards completely from the dial shelf chassis; however, you must disconnect incoming CE1/CT1 trunk line cables.
To disconnect the feature cards and dial shelf controller cards from the backplane, follow these steps:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Disconnect incoming CE1/CT1 trunk line cables and secure them out of the way using cable ties, if necessary. On the dial shelf controller card, disconnect the dial shelf interconnect cable, and the 10BaseT connection, if applicable.
| Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. |
Step 3 Loosen the panel fasteners at the top and bottom of the card front panel using a number 2 Phillips screwdriver.
Step 4 Pull either the upper or lower ejector lever away from the card front panel to disengage the card from the backplane connector, as shown in Figure 1-7.
Step 5 Grasp the ejector levers and pull the card partially out of the dial shelf slot. (See Figure 1-8.)
Return to the rear of the dial shelf and continue by removing the PEMs, the filter module, and the back cover. You also need to remove the horizontal bar that is used to attach the bottom of the back cover and the tops of the PEMs and filter module to the chassis.
Step 1 Loosen the two captive screws on each PEM front panel using a 1/4-inch flat-blade screwdriver.
Step 2 Remove the PEMs from the dial shelf and set aside until you are ready to reinstall them. (See Figure 1-9.)
Step 3 Loosen the captive screws on the filter module front panel using a 1/4-inch flat-blade screwdriver.
Step 4 Remove the filter module from the dial shelf and set it aside until you are ready to reinstall it. (See Figure 1-10.)
Step 5 Remove the back cover. To do this, you need to remove the screws located on the dial shelf back cover grill using a number 2 Phillips screwdriver. (See Figure 1-11) Save the screws.
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Step 6 Locate the horizontal bar that spans the width of the dial shelf chassis rear (see Figure 1-12), and remove the four screws (two on each side of the dial shelf outer chassis) using a number 2 Phillips screwdriver. Save the screws.
To complete the backplane removal procedure, complete the following steps:
Step 1 Disconnect the cable connection to the dial shelf blower assembly, as shown in Figure 1-12.
Step 2 Remove the 26 M3 x 8 mm screws around the backplane perimeter using a number 2 Phillips screwdriver. (See Figure 1-13.) Save the screws.
Step 3 Remove the backplane and place it in an ESD shielding bag. Use the replacement backplane carton to return the faulty backplane to the factory, if necessary.
This completes the dial shelf backplane removal process. Proceed to the section "Replacing the Filter Module."
To replace the backplane reverse the procedures used to remove cables and components; complete the following steps. When you are finished, use a Site Log sheet to record service maintenance.
Step 1 Unpack the new backplane module (MAS-5814BP=) from the ESD shielding bag and install the backplane in the same position as the one you just removed.
Step 2 Reuse the screws used to secure the old backplane and tighten the screws using a number 2 Phillips screwdriver. (Refer to Figure 1-13.)
Step 3 Connect the cable connection to the dial shelf blower assembly. (Refer to Figure 1-12.)
Step 4 Replace the back cover; reuse the screws used to secure the back cover and tighten the screws using a number 2 Phillips screwdriver. (Refer to Figure 1-11.)
Step 5 Replace the dial shelf filter module and tighten the captive screws on the front panel using a 1/4-inch flat-blade screwdriver. If using the AC-input power shelf, connect the monitor cable. The DB-9 connector connects to the filter module; the DB-25 connector connects to the optional AC-input power shelf. (Refer to Figure 1-5.)
Step 6 Replace the dial shelf PEMs and tighten the captive screws on the front panels using a 1/4-inch flat-blade screwdriver; then reconnect the power cables.
Step 7 From the front of the dial shelf, reseat the dial shelf controller card(s) and the feature cards using the ejector levers and tighten the panel fasteners with a number 2 Phillips screwdriver. (Refer to Figure 1-7 and Figure 1-8.)
Step 8 Power ON the central office main power source.
Step 9 Power ON ( | ) the dial shelf using the power switches located on each PEM front panel.
Step 10 If using the optional AC-input power shelf, power ON ( | ) the power supplies using the power switches on the power shelf front panel.
Step 11 Power ON ( | ) the router shelf using the power switches located on the Cisco 7206 router shelf rear panel.
Step 12 Note service maintenance on your Site Log sheet.
This completes the backplane removal and replacement procedure. The backplane is a passive design. Specific verification and troubleshooting instructions are considered unnecessary.
Posted: Tue Jul 6 14:30:54 PDT 1999
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