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This chapter provides installation procedures for a Cisco 6100 Series Direct Connect with a POTS splitter chassis (PSC) configuration.
 | Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. |
For detailed information on the following, refer to the Cisco 6100 Series User Guide:
A Direct Connect with a PSC configuration can include the following components:
| Warning Systems using a Cisco 6100 chassis must connect to the network through a PSC to provide the secondary lightning protection required by NEBS. |
For additional compliance and safety information, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.
The following modules can be installed in the MC:
The following modules can be installed in the PSC:
 | Caution Do not mix CAP and DMT-2 ATU-C modules. Use all CAP modules in both the MC and PSC or use all DMT modules in both the MC and PSC. Mixing modules can cause unpredictable system behavior. |
Figure 4-1 shows the components for a Direct Connect with a PSC configuration when you are using a Cisco 6130 MC. This configuration can be used with either CAP-EP or DMT-2 ATU-C modules.
If you are installing more than one Cisco 6130 MC in a Direct Connect configuration with a PSC, install a fan tray under each Cisco 6130 MC.
Figure 4-2 shows the components for a Direct Connect with a PSC configuration when you are using a Cisco 6100 MC. This configuration can be used only with CAP ATU-C modules.
If you are installing more than one Cisco 6100 MC in a Direct Connect configuration with a PSC, allow 1 rack unit (RU) of space between the first PSC and the second MC. Figure 4-3 is a sample configuration.
The MC ships with a front door that must be installed and in place for the system to achieve NEBS compliance (see Figure 4-4). For more information on NEBS requirements, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.
Installation of a rear door is optional. See the "Install the Rear Door" section for installation information. Refer to the Cisco 6100 Series Rear Door Configuration Notes for additional product information.
When you install a Direct Connect with a PSC configuration, be sure that you follow the installation procedures in proper sequence. Table 4-1 is a checklist of the installation steps in the order in which they should occur. Subsequent subsections describe the installation steps.
| Caution Proper ESD protection is required whenever you handle Cisco Digital Subscriber Line Access Multiplexer (DSLAM) equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage whenever they are removed from the chassis. |
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| 1MDF = main distribution frame 2NI = network interface |
For the rack to remain stable, you must install your Cisco 6100 Series system from the bottom to the top of the rack. Before you install any of the chassis, measure the total rack space required to install your system. The required rack space depends on the number of MCs and fan trays you plan to use. The number of MCs and required fan trays increases if you plan to install a subtended network.
You can install a combination of the Cisco 6100 Series components in a 7-foot rack:
The Cisco 6100 Series system fits in a 23-inch wide rack. Allow enough space for wiring. See Table 2-1 for individual rack space requirements. Allow 1 RU of space between the fan tray and the PSC. This space allows for the intake plenum and for cabling back to front for the OC-3c NI module.
| Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety: |
Use the following steps to install the PSC in the rack:
Step 1 Position one PSC (4 RUs) at the bottom of the rack. The PSC does not dissipate heat; therefore, the bottom of the rack is the best location for the PSC.
Step 2 Using the six mounting screws and a Phillips-head screwdriver, bolt the PSC in the rack.
Step 3 Repeat Steps 1 and 2 for each PSC as necessary.
See Figure 4-1 through Figure 4-3 for the correct placement of the PSC.
| Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back. |
If you are using a Cisco 6130 MC in this configuration, you must have a fan tray installed directly below the MC. Installing the fan tray achieves NEBS compliance.
Use the following steps to install the fan tray in the rack:
Step 1 Position the fan tray (2 RUs) above the PSC. Allow 1 RU of space between the fan tray and the PSC. This space allows for the intake plenum and for cabling back to front for the OC-3c NI module.
Step 2 Using the four mounting screws and a Phillips-head screwdriver, bolt the fan tray in the rack above the PSC.
See Figure 4-1 through Figure 4-3 for the correct placement of the fan tray.
Use the following steps to install the MC in the rack:
Step 1 Position one MC (9 RUs) above the fan tray. The top of the fan tray should be flush with the bottom of the MC.
Step 2 Using mounting screws and a Phillips-head screwdriver, bolt the MC in the rack.
Step 3 Remove the MC front door.
Step 4 Repeat Steps 1 through 3 for each MC as necessary.
See Figure 4-1 through Figure 4-3 for the correct placement of the MC.
| Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back. |
Connect the 50-pin Champ cables from the MC (J39 through J44) to the PSC (J1 through J6). These connections are for xDSL data flow between the MC and the PSC. See the "MC to PSC Cables" section for cabling diagrams and cable part numbers.
Table 4-2 shows the corresponding MC and PSC connectors.
| MC Connector | PSC Connector |
|---|---|
J39 | J3 |
J40 | J1 |
J41 | J5 |
J42 | J4 |
J43 | J2 |
J44 | J6 |
The following are the three sets of connections on the PSC backplane:
The two additional data connections (J1 and J2) are used only in a Direct Connect configuration. Figure 4-5 shows the location of the PSC data, voice, and line connections.
During the system installation, use the following steps to connect the grounding lug on the MC, fan tray, and PSC directly to the rack:
Step 1 Remove all paint or oxidation from the rack at the point of the grounding connection.
Step 2 Measure enough wire (14 American Wire Gauge [AWG] or thicker green or green with yellow stripes stranded copper wire) to connect the MC to the rack. (See Figure 4-6 for grounding wire location.)
Step 3 Use a wire stripper to remove the casing from both ends of the wires.
Step 4 Using a 3/16-inch flat-blade screwdriver, loosen the screw on the rack.
Step 5 Hook one end of the copper wire around the screw on the rack.
Step 6 Tighten the rack screw over the copper wire.
Step 7 Loosen the compression screw provided on the grounding lug on the MC. The grounding lugs are located in the upper left corner of each chassis (viewed from the rear).
Step 8 Insert the other end of the copper wire under the compression screw.
Step 9 Tighten the compression screw over the copper wire.
Step 10 Repeat Step 1 through Step 9 for the fan tray and the PSC.
The left side of Figure 4-6 shows how to ground the MC, fan tray, and PSC to the rack.
| Caution To prevent the system from powering up, do not install the fuses at this time. If the fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is wired. |
External power is supplied to the system as -48 VDC from the central office (CO) power source or rectifier to the fuse and alarm panel. Power is fed from the fuse and alarm panel to the MC by a terminal block connector with four dual power connections (P13) located at the top of the MC backplane. Figure 4-7 shows the location of the power connection (P13) on the MC.
Cisco ships ferrites with the Cisco 6100 Series system. The ferrites must be installed on the wires used to connect the fuse and alarm panel and the power connections on the MC. These wires should be looped through the ferrite as shown in Figure 4-8.
You can wire the power connections from the MC to the fuse and alarm panel for either dual- or single-power feed.
Use the following steps to attach the MC power connections (P13) to the fuse and alarm panel for a dual-power feed:
Step 1 Use a socket driver to remove the cover over the MC power connections.
Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the MC power input connections to the fuse and alarm panel. See Figure 4-9 for power input connections.
Step 3 Use a wire stripper to remove the casing from both ends of the wires.
Step 4 Using a Phillips-head screwdriver, attach a wire to the -48V_A power input connection on the MC (P13).
Step 5 Loop the wire through the ferrite as shown in Figure 4-8.
Step 6 Attach the wire to a fuse and alarm panel NEG (negative) DC connector.
Step 7 Using a Phillips-head screwdriver, attach a wire to the -48V_B power input connection on the MC (P13).
Step 8 Loop the wire through the ferrite as shown in Figure 4-8.
Step 9 Attach the wire to a fuse and alarm panel NEG DC connector.
Figure 4-9 shows the MC power input connections wired to the fuse and alarm panel.
Step 10 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the MC power return connections to the fuse and alarm panel. See Figure 4-10 for power return connections.
Step 11 Use a wire stripper to remove the casing from both ends of the wires.
Step 12 Using a Phillips-head screwdriver, attach a wire to a -48V power return connection (-48RTN) on the MC (P13).
Step 13 Loop the wire through the ferrite as shown in Figure 4-8.
Step 14 Attach the wire to a fuse and alarm panel POS (positive) RTN connector.
Step 15 Repeat Steps 10 through 14 for the remaining -48V power return connection (-48RTN).
Figure 4-10 shows the MC power return connections wired to the fuse and alarm panel for a dual-power feed.
Use the following steps to attach the MC power connections (P13) to the fuse and alarm panel for a single-power feed:
Step 1 Use a socket driver to remove the cover over the MC power connections.
Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the MC power connections to the fuse and alarm panel. See Figure 4-11 for power connections.
Step 3 Use a wire stripper to remove the casing from both ends of the wires.
Step 4 Using a Phillips-head screwdriver, attach a wire to the -48V_B power input connection on the MC (P13).
Step 5 Loop the wire through the ferrite as shown in Figure 4-8.
Step 6 Attach the wire to the fuse and alarm panel NEG DC connector.
Step 7 Using a Phillips-head screwdriver, attach a wire to a -48RTN power return connection on the MC (P13). See Figure 4-11 for correct placement.
Step 8 Loop the wire through the ferrite as shown in Figure 4-8.
Step 9 Attach the wire to the fuse and alarm panel POS RTN connector. See Figure 4-11 for correct placement.
Step 10 Using a Phillips-head screwdriver, attach a wire to connect the -48V_A and -48V_B power input connections to each other.
Step 11 Using a Phillips-head screwdriver, attach a wire to connect the -48RTN power return connections to each other.
Figure 4-11 shows the MC power connections wired to the fuse and alarm panel for a single-power feed.
External power is supplied to the system as -48 VDC from the CO power source or rectifier to the fuse and alarm panel. Power is fed from the fuse and alarm panel to the fan tray by a terminal block connector with four dual power connections (P1) located at the top of the fan tray backplane. Figure 4-12 shows the location of the power connection (P1) on the fan tray.
You can wire the power connections from the fuse and alarm panel to the fan tray for either dual- or single-power feed.
Use the following steps to attach the fan tray power connections to the fuse and alarm panel for a dual-power feed:
Step 1 Use a socket driver to remove the cover over the fan tray power connections.
Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the fan tray power connections to the fuse and alarm panel. See Figure 4-13 for power connections.
Step 3 Use a wire stripper to remove the casing from both ends of the wires.
Step 4 Using a Phillips-head screwdriver, attach a wire to the -48VA power input connection on the fan tray (P1).
Step 5 Attach the wire to the fuse and alarm panel NEG DC connector. See Figure 4-13 for correct placement.
Step 6 Using a Phillips-head screwdriver, attach a wire to the -48VB power input connection on the fan tray (P1).
Step 7 Attach the wire to the fuse and alarm panel NEG DC connector. See Figure 4-13 for correct placement.
Step 8 Using a Phillips-head screwdriver, attach a wire to a -48RTN power return connection on the fan tray (P13).
Step 9 Attach the wire to a fuse and alarm panel POS RTN connector.
Step 10 Repeat Steps 8 and 9 for the remaining -48RTN power return connection.
Figure 4-13 shows the power connections from the fan tray to the fuse and alarm panel for a dual-power feed.
Use the following steps to attach the fan tray power connections to the fuse and alarm panel for a single-power feed:
Step 1 Use a socket driver to remove the cover over the fan tray power connections.
Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the fan tray power connections to the fuse and alarm panel. See Figure 4-13 for power connections.
Step 3 Use a wire stripper to remove the casing from both ends of the wires.
Step 4 Using a Phillips-head screwdriver, attach a wire to the -48VA power input connection on the fan tray (P1).
Step 5 Attach the wire to the fuse and alarm panel NEG DC connector.
Step 6 Using a Phillips-head screwdriver, attach a wire to an RTN power return connection on the fan tray (P1). See Figure 4-14 for correct placement.
Step 7 Attach the wire to the fuse and alarm panel POS RTN connector. See Figure 4-14 for correct placement.
Step 8 Using a Phillips-head screwdriver, attach a wire to connect the -48VA and -48VB power input connections to each other.
Step 9 Using a Phillips-head screwdriver, attach a wire to connect the RTN power return connections to each other.
Figure 4-14 shows the power connections from the fan tray to the fuse and alarm panel for a single-power feed.
You must connect the fan tray alarm contacts so that the fan tray alarms can be transmitted to the ViewRunner software.
Use the following steps to connect the fan tray alarm contacts:
Step 1 Measure enough wire (24 to 28 AWG solid wire) to connect each of the fan tray alarm contacts on the MC to the fan tray. See Figure 4-15 for location.
Step 2 Use a wire stripper to remove the casing from both ends of the wires.
Step 3 To connect the Fan Alarm+ contact, wire P2 on the backplane of the fan tray to P14 (pin 7) on the backplane of the MC. Use a wire wrapping tool to attach the wire to the contacts.
Step 4 To connect the Fan Alarm- contact, wire P2 on the backplane of the fan tray to P15 (pin 8) on the backplane of the MC. Use a wire wrapping tool to attach the wire to the contacts.
Figure 4-15 shows how the fan tray two-position header (P2) connects to the fan tray alarm contacts (P14, pins 7 and 8) on the MC backplane. See Figure 4-16 for a close view of the alarm contact pinouts. For pinout descriptions, see Table B-1.
The CO alarm interface contacts connect to the E2A, visual, and audible (P14, P15, P17) alarm contacts on the MC backplane.
The alarm interface provides three types of alarm contacts:
Each connector pinout (P14, P15, P17) includes a dedicated side-by-side pair of wire-wrap alarm contacts for three alarm types:
An automatic cutoff (ACO) input is also located adjacent to the audible alarm contacts. When closed, the ACO input deactivates audible alarm contacts. The system controller (SC) module front panel contains a button labeled ACO that you can press to disable the CO audible alarms on site. All alarm contacts are rated at 2A maximum current and 220 VDC maximum voltage.
The MC is shipped with the DS3 system I/O card already installed on the rear of the MC. If the DS3 system I/O card is missing from your MC, install it at connector locations P9 and P3, as shown in Figure 4-17.
In a subtended network configuration, the DS3 subtending card is attached to connector J48 (see Figure 4-17). For more information on installing the DS3 subtending card, see "Installing a Subtended Network in a Direct Connect Configuration."
The DS3 system I/O card provides the following:
On the DS3 system I/O card, the receive DS3 Bayonet-Neill-Concelman (BNC) connector is designated as J4, and the transmit DS3 BNC connector is designated as J3. Figure 4-18 shows the two DS3 system I/O cards that are currently in the field. In the figure, the DS3 system I/O card on the left is the card available from Release 2.4.0 and later. The DS3 system I/O card on the right is the card available before Release 2.4.0.
Use the following steps to connect the PSC to the CO MDF:
Step 1 Using the cables provided by Cisco (see the "PSC to MDF Cables" section) or built according to the specifications for a Nortel NT-T100 series cable, connect the xDSL subscriber line connectors (J11 to J14) to the MDF.
Step 2 Connect the voice lines by connectors (J7 to J10) to the MDF for distribution to the Public Switched Telephone Network (PSTN). Figure 4-19 shows the connectors used to link the PSC to the Class 5 switch (through the MDF).
See the "Direct Connect with PSC Configuration Port Mapping Tables" section for port mapping information.
If the MC ships with any modules installed, complete the following steps to pull the modules away from the MC backplane connection:
| Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis. |
Step 1 Lift up on the ejector tab.
Step 2 Carefully slide the module forward and away from the backplane connection.
To verify the jumper block location on the CAP ATU-C modules, complete the following steps:
Step 1 Check the right side of each CAP ATU-C module to verify that the jumper blocks are in the lower of the two positions. (See Figure 4-20.)
Step 2 If the jumper blocks are not in the proper location, remove them and place them on the CAP ATU-C module correctly.
Step 3 Repeat Step 1 and Step 2 for each CAP ATU-C module in the MC.
If you have a Cisco 6100 chassis, set all DIP switches on SW1 and SW2 to the OFF position (Figure 4-21).
| Warning Systems using a Cisco 6100 chassis must connect to the network through a PSC to provide the secondary lightning protection required by NEBS. |
If you are installing a subtended network with subtended node MCs to a subtending host MC, do not finish the rest of the installation procedures in this chapter. Go to "Installing a Subtended Network in a Direct Connect Configuration." After you finish with the installation procedures for a subtended network, your Cisco 6100 Series system is fully installed with a Direct Connect subtended network.
If you are not installing a subtended network, go to the following subsection.
Without the modules installed in any of the MCs or PSCs, apply power to the system by
| Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis. |
The power connections from the MC to the fuse and alarm panel will be wired as shown in Figure 4-10 or Figure 4-11. The power connections from the fan tray to the fuse and alarm panel will be wired as shown in Figure 4-13 or Figure 4-14.
| Caution Check the polarity of the -48 VDC connections to each chassis by attaching a voltmeter with the minus lead on -48RTN and the plus lead on -48V_A. Ensure that the meter reads between -36 VDC and -60 VDC. If your voltmeter shows a positive voltage, the power inputs might be reversed. If the voltmeter shows a negative voltage that is out of the -36 VDC to -60 VDC range, check the power supply for failure or check for a blown fuse in the fuse and alarm panel. |
Verify that the fans are operational by locating the LED on the front of each fan. If the LED is
The fans should be operational before you install the modules.
| Caution It is important that the MC cooling fans run continuously. The system could suffer thermal damage if the fans stop running for more than 30 minutes. |
| Warning The power supply circuitry for the Cisco DSLAM equipment can constitute an energy hazard. Before you install or replace the equipment, remove all jewelry (including rings, necklaces, and watches). Metal objects can come into contact with exposed power supply wiring or circuitry inside the DSLAM equipment. This could cause the metal objects to heat up and cause serious burns or weld the metal object to the equipment. |
| Warning Do not reach into a vacant slot or chassis while you install or removing a module or a fan. Exposed circuitry could constitute an energy hazard. |
| Caution Proper ESD protection is required each time you handle Cisco DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage each time they are removed from the chassis. |
If the MC ships with any modules installed, reseat the modules to verify the power connection and to ensure that ViewRunner discovery feature works properly. Refer to the ViewRunner for Windows Provisioning and Operation Manual for more information on the discovery feature.
To reseat the xTU-C modules, complete the following steps:
Step 1 Lift up on the ejector tab.
Step 2 As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.
Step 3 Push on the faceplate of each module to fully seat the module.
Step 4 After the module is fully seated in the slot, press down on the ejector tab to secure the module.
Step 5 After the brief self-test, verify that the STATUS LED is solid green.
Step 6 Using the same procedure, reseat the remaining xTU-C modules.
| Caution Proper ESD protection is required each time you handle Cisco DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage each time they are removed from the chassis. |
Install the Cisco 6100 Series modules in the following order to verify the power connection and to ensure that ViewRunner discovery feature works properly. Refer to the ViewRunner for Windows Provisioning and Operation Manual for more information on the discovery feature.
| Caution Installing the modules in the chassis with the power leads reversed can damage the modules. |
| Warning The power supply circuitry for the Cisco DSLAM equipment can constitute an energy hazard. Before you install or replace the equipment, remove all jewelry (including rings, necklaces, and watches). Metal objects can come into contact with exposed power supply wiring or circuitry inside the DSLAM equipment. This could cause the metal objects to heat up and cause serious burns or weld the metal object to the equipment. |
| Warning Do not reach into a vacant slot or chassis while you install or removing a module or a fan. Exposed circuitry could constitute an energy hazard. |
To install the modules in the MC and PSC, follow these steps in the order shown:
Step 1 To install the ATU-C modules in the MC, complete the following:
(a) Verify that the jumper blocks are in the correct position on the CAP ATU-C modules (see the "Verify CAP ATU-C Jumpering" section).
(b) Vertically align the module edge with the module guides at the top and bottom of slot 1 of the MC.
(c) Lift up on the ejector tab.
(d) As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.
(e) Push on the faceplate of each module to fully seat the module.
(f) After the module is fully seated in slot 1, press down on the ejector tab to secure the module.
(g) After the brief self-test, verify that the STATUS LED is solid green.
(h) Using the same procedure, install the remaining ATU-C modules. Repeat for each module. The ATU-C modules are installed in slots 1 through 8, 13 through 28, and 31 through 38.
Step 2 To install the NI module in the MC, complete the following:
(a) Inspect the NI module. Verify that the two daughterboards are fully seated on the main board.
(b) Verify that slots 10 and 11 of the MC have no bent pins.
(c) Vertically align the module edge with the module guides at the top and bottom of slot 10 of the MC.
(d) Lift up on the ejector tabs.
(e) As you lift up the ejector tabs and gently apply pressure to the faceplate, push the module into the slot.
(f) Push on the faceplate of each module to fully seat the module.
(g) After the module is fully seated in slot 10, press down on the ejector tabs to secure the module.
(h) The NI module self-test takes approximately 2 minutes. After that time, verify that the ACTIVE LED is solid green.
(i) When you install a DS3 NI module, attach a short coaxial cable between the DS3 system I/O card transmit and receive connectors to loop back the interface and prevent alarms when installing the SC module.
When you install an OC-3c NI module, attach a short multi-mode or single-mode fiber to loop back the interface.
For additional information on connecting the NI module to the network, see the "Connect the NI Module to the Network" section.
Step 3 To install the POTS splitter modules in the PSC, complete the following:
(a) Vertically align the module edge with the module guides at the top and bottom of slot 1 of the PSC.
(b) Lift up on the ejector tab.
(c) As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.
(d) Push on the faceplate of each module to fully seat the module.
(e) After the module is fully seated, press down on the ejector tab to secure the module. The POTS modules are installed in slots 1 through 10 and 13 through 22 of the PSC.
Step 4 To install the SC module in the MC, complete the following:
(a) Inspect the SC module for damage.
(b) Vertically align the module edge with the module guides at the top and bottom of slot 12 of the MC.
(c) Lift up on the ejector tab.
(d) As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.
(e) Push on the faceplate of each module to fully seat the module.
(f) After the module is fully seated, press down on the ejector tab to secure the module. This causes each module in the MC to reset.
(g) After 2 minutes, the STATUS and ACTIVE LEDs on all modules should be solid green (where applicable). There should be no alarms on the SC module (ALARM LED off).
(h) If the status lights on the ATU-C modules or the NI module are flashing, perform a a software update using the ViewRunner software. Refer to the ViewRunner for Windows Provisioning and Operation Guide or the ViewRunner for HP OpenView Provisioning and Operation Guide for software upgrade procedures.
Although filler faceplates are not required for system operation, you must install them in all open slots of each chassis to achieve NEBS and thermal requirements. The filler faceplate installation is similar to the module installation.
To install the filler faceplates in the MC or PSC, complete the following steps:
Step 1 Vertically align the module edge with the module guides at the top and bottom of the slot.
Step 2 Lift up on the ejector tab.
Step 3 As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.
Step 4 Push on the faceplate of each module to fully seat the module.
Step 5 Once the filler faceplate is fully seated, press down on the ejector tab to secure the faceplate.
For more information on NEBS requirements, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.
The NI module provides three types of network connections:
This section provides installation procedures and additional information for the OC-3c and DS3 network connections.
Use the following steps to connect the OC-3c NI module to the network using an OC-3c connection:
Step 1 Verify that the OC-3c NI module is in slot 10 on the MC.
Step 2 Remove the fiber that was temporarily installed to loop back the interface in the "Install the Modules" section.
Step 3 If you are using an OC-3c MMF NI module or an OC-3c SMF NI module, connect the OC-3c NI module transmit and receive cables from the ATM switch through the 1 RU of space between the fan tray and the PSC.
Step 4 Attach the optical fiber to the transmit and receive connectors in the inset on the front panel of the OC-3c NI modules. See Figure 4-22 for the OC-3c network interface connection location.
The transmit connector is the one closest to the top of the front panel and closer to the faceplate. The receive connector is closest to the bottom of the module and farthest from the faceplate. The connector IDs are silkscreened inside the inset.
Step 5 Allow enough slack in the cable so that the fan tray can be opened and the fans can be maintained. Coil the fiber loosely within the 1 RU of space to take out slack.
The reach for the SMF interface is specified as 35 km if you use Siecor 0.20 dB per kilometer, 9uM (micro meters) optical cable. Table 4-3 shows the electro-optical characteristics of the single-mode 155 MB ATM transceiver.
| Transmitter | Units | Minimum | Typical | Maximum |
|---|---|---|---|---|
Output power (average) | dBm | -15.0 | -11.0 | -8.0 |
Center wave length | nm | 1260 | --- | 1360 |
For single-mode ATM/SONET/SDH transceivers, the receiver minimum optical input power is -31 dBm (average), and the receiver maximum optical input power is -8 dBm (average).
Table 4-4 shows the electro-optical characteristics of the multi-mode OC-3c transceiver.
| Transmitter | Units | Minimum | Typical | Maximum |
|---|---|---|---|---|
Output power (average) | dBm | -17.0 | -15.0 | -12.0 |
Center wave length | nm | 800 | --- | 900 |
Use the following steps to connect the DS3 NI module to the network:
Step 1 Verify that the DS3 NI module is installed in slot 10 on the MC. This ensures that the DS3 NI module connections will be active.
The DS3 NI module connections are on the DS3 system I/O card that is located on the backplane of the MC. These connections attach to the ATM switch. Two 75-ohm DS3 BNC connectors are provided for DS3 transmit and receive. (See Figure 4-23.)
Step 2 Remove the short coaxial cable between the DS3 transmit and receive connectors to loop back the interface and prevent alarms when you install the SC module in the "Install the Modules" section.
Step 3 Attach a cable to the transmit (J3) DS3 BNC connector on the DS3 system I/O card on the MC backplane. See Figure 4-23 for the DS3 BNC connector locations on each version of the DS3 system I/O card.
Step 4 Cisco ships ferrites with this system that must be installed on the coaxial cables used to cable the DS3 system I/O card to the ATM switch. If you are using
Step 5 Attach the end of the cable used in Step 4, which originates at the transmit DS3 BNC connector, to the ATM switch.
Step 6 Attach a cable to the receive (J4) DS3 BNC connector on the DS3 system I/O card on the MC backplane. See Figure 4-23 for the DS3 BNC connector locations on each version of the DS3 system I/O card.
Step 7 Attach the ferrite as close as possible to the receive DS3 BNC connector on the DS3 system I/O card (see Figure 4-24 or Figure 4-25 for ferrite installation). Tie wrap the cable directly behind the ferrite.
Step 8 Attach the end of the cable used in Step 7, which originates at the receive DS3 BNC connector, to the ATM switch.
Step 9 Tie wrap the transmit and receive cables coming from the DS3 system I/O card to the location in which the cables meet after coming from the ferrites, and every 1 foot thereafter, for a total of 15 feet (see Figure 4-26).
The DS3 NI module receives its transmit timing from a local oscillator with 20 ppm accuracy. The line build-out defaults to 0 to 225 feet.
The default configuration for the DS3 NI module is as follows:
Table 4-5 shows reach comparisons for a Lucent 735A (thin coaxial cable), a Lucent 734A (thick coaxial cable), and a Belden RG-59/U (thick coaxial cable). An HP Cerjac was used to monitor the return loss. A minimum signal level of 360 mV was monitored at the HP Cerjac, and the cable length was then measured. The Lucent 734A thick coaxial cable performed slightly better than the Belden RG-59/U cable. The reach numbers represent the maximum distance to a DSX-3 cross connect.
| Cable Type | Line Build Out | Haul Length | Reach |
|---|---|---|---|
734A | 1 | Short haul | 325 feet |
RG-59/U | 1 | Short haul | 250 feet |
735A | 1 | Short haul | 175 feet |
To achieve NEBS compliance, verify that the MC front door is attached to the MC and closed (see Figure 4-27). For more information on NEBS requirements, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.
Use the following steps to connect the PC running ViewRunner software to the MC:
Step 1 Connect one end of the Ethernet cable to the RJ-45 (10BaseT/LAN) connector on the DS3 system I/O card.
Step 2 Connect the other end of the Ethernet cable to one of the following
 | Tips For step-by-step instructions for provisioning a Direct Connect configuration, refer the ViewRunner for Windows Provisioning and Operation Guide or the ViewRunner for HP OpenView Provisioning and Operation Guide. |
You can order and install an optional rear door for the back of the MC. The rear door attaches to the back of the MC and restricts access to the backplane and cable connectors. To keep cables from interfering with the opening of the rear door, the cables that come down from the top of the rack can be tie wrapped to the door-mounting brackets.
The rear door accessory kit contains
Use the following steps to install the rear door:
Step 1 Locate and remove six of the backplane screws currently used to hold the MC backplane to the chassis. Three screws are located on the right of the chassis, and three are located on the left. See Figure 4-28 for the location of the screws. Keep the backplane screws. They will be used when you install the door-mounting brackets.
Step 2 Install the six standoff screws in the locations formerly occupied by the six screws you removed in Step 1. Use a one-quarter inch socket driver or wrench to tighten the standoff screws.
Step 3 Facing the rear of the chassis, install the door-mounting bracket on the right side of the chassis. Place the bracket over the standoff screws. Use three of the screws you removed in Step 1 to fasten the door-mounting bracket to the chassis. (See Figure 4-29.)
Step 4 Facing the rear of the chassis, install the door-mounting bracket (with the rear door attached) on the left side of the chassis. Place the bracket (with rear door) over the standoff screws. Use three of the screws you removed in Step 1 to fasten the door-mounting bracket (with rear door) to the chassis.
Step 5 Use the tie wraps provided in the accessory kit to attach cables to the door-mounting bracket loops, as necessary.
Step 6 The rear door closes left to right (seen from the rear of the chassis). There are two latches on the rear door (see Figure 4-30). Lift the latches as you close the rear door. After the rear door is in place, release the latches.
Step 7 The two thumbscrews located on the rear door align with two thumbscrew fasteners on the bracket (see Figure 4-31). Tighten the thumbscrews to secure the rear door.
To verify that the system is connected and running properly, follow the connection test procedures in "Connection Test Procedures for a Direct Connect Configuration."
Posted: Tue Nov 16 14:53:27 PST 1999
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