Table of Contents
Installing the Chassis
This chapter describes the procedures for rack-mounting, connecting the cables, and powering up the ATM switch, and it contains the following sections:
 | Caution
Before installing the chassis in a rack, read the section "Safety Recommendations" in this chapter to become familiar with the proper site and environmental conditions. Failure to read and follow these guidelines can lead to an unsuccessful installation and possible damage to the system and components. |
This section describes the equipment and site requirements for installing the chassis. Instructions for unpacking the system and additional equipment are provided in the document Unpacking Instructions, which is attached to the outside of the shipping container.
This section includes information about the following preinstallation requirements:
 | Warning
Read the installation instructions before you connect the system to its power source. |
| Warning
Only trained and qualified personnel should be allowed to install or replace this equipment. |
| Warning
Ultimate disposal of this product should be handled according to all national laws and regulations. |
| Warning
This equipment is to be installed and maintained by service personnel only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel. |
| Warning
The telecommunications lines must be disconnected 1) before unplugging the main power connector and/or 2) while the housing is open. |
The following guidelines help verify your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations that might arise as you install the switch, so be alert.
- Do not try to lift the chassis by yourself; for safety guidelines, refer to the section "Safely Lifting the Chassis."
- Turn all power supplies off (the position marker should be at zero) and unplug all power cords before removing the chassis front panel.
- Unplug all power cords before installing or removing a chassis.
- Keep the chassis area clear and free of dust during and after installation.
- Keep tools and chassis components away from walk areas.
- Do not wear loose clothing, jewelry (including rings and chains), or other items that could get caught in the chassis. Fasten your tie or scarf and roll up your sleeves.
| Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. |
| 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
Before working on a system that has an on/off switch, turn off the power and unplug the power cord. |
| Warning
This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the two power supply cords before servicing the unit. |
The switch chassis weighs 32 pounds (13.6 kilograms) when empty (no port adapters or power supplies installed) and 67 pounds (30 kilograms) with two power supplies and port adapters installed. The chassis is not intended to be moved frequently. Before you install the switch, verify that your site is properly prepared so you can avoid having to move the chassis later to accommodate power sources and network connections.
Two people are required to lift the chassis. Whenever you lift the chassis or any heavy object, follow these guidelines:
- Do not attempt to lift the chassis by yourself. The size and weight of the chassis require two people to safely lift and move it without causing injury or damaging the equipment.
- Grasp the underside of the chassis exterior with both hands.
- Ensure that your footing is solid, and balance the weight of the chassis between your feet.
- Do not move suddenly or twist your body as you lift. Lift the chassis slowly.
- Leave port adapters, power supplies, and fan assembly installed.
- Disconnect all external cables before lifting or moving the chassis.
- Keep your back straight and lift with your legs, not your back. If you must bend down to lift the chassis, bend at the knees, not at the waist, to reduce the strain on your lower back muscles. (See Figure 2-1.)
Figure 2-1: Unsafe Lifting Practice
The processor card, carrier modules, port adapters, and redundant (second) power supplies are designed to be removed and replaced while the system is operating, without presenting an electrical hazard or risking damage to the system. Before removing a redundant power supply, verify that the first supply is turned on and that the power supply being removed is turned off.
Never install equipment that appears to be damaged.
Use the following basic guidelines when working with any electrical equipment:
- Locate the emergency off switch for the room in which you are working before beginning any procedures requiring access to the chassis interior.
- Disconnect all power and external cables before installing or removing a chassis.
- Work with at least one other person when potentially hazardous conditions exist.
- Check to see whether power has been disconnected from a circuit; do not assume.
- Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
- Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.
In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source but still connected to telephone wiring or other network cabling.
| Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity. |
- Do not install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
- Do not touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
- Use caution when installing or modifying telephone lines.
Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent failures. The processor card and port adapters each consist of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Handle the carriers by the carrier edges only; never touch the cards or connector pins. Although the metal carrier helps to protect the cards from ESD, use a preventive antistatic strap whenever you handle the processor card or port adapters.
| Caution
Always tighten the captive installation screws on the processor card and port adapters when you are installing them. These screws prevent accidental removal of the processor card, carrier modules, and port adapters, provide proper grounding for the system, and help to ensure that the bus connectors are properly seated in the backplane. |
The following guidelines help prevent ESD damage:
- Use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.
- When removing any module, connect the equipment end of the strap to one of the captive installation screws on an installed port adapter or power supply.
(See Figure 2-2.)
- Handle carriers by the faceplates and carrier edges only; avoid touching the card or any connector pins.
- Place the removed module component side up on an antistatic surface or in a static shielding bag, when removing a module. If the module is to be returned to the factory, immediately place it in a static shielding bag.
- Avoid contact between the modules and clothing. The wrist strap only protects the card from ESD voltages on the body; ESD voltages on clothing can still cause damage.
- When removing any module, connect the equipment end of the strap to one of the captive installation screws on an installed port adapter or power supply.
(See Figure 2-2.)
| Caution
For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms). |
Figure 2-2: Placement of Electrostatic Discharge Wrist Strap
This section discusses the site requirements for power, wiring, equipment, environment, and configuration for the switch chassis.
| Warning
This unit is intended for installation in restricted access areas. A restricted access area is where access can only be gained by service personnel through the use of a special tool, lock and key, or other means of security, and is controlled by the authority responsible for the location. |
| Warning
The device is designed to work with TN power systems. |
The 376W, AC-input power supply uses a power factor corrector (PFC) that allows it to operate on input voltage and current within the ranges of 100 to 127 VAC and 50 to 60 Hz.
The 376W, DC power supply operates with a minimum of 3.5A and a maximum of 70A at +5V.
A second, identical power supply is also present in a chassis configured with the redundant power option. Redundant power ensures that power to the chassis continues uninterrupted in the event that one power supply fails. It also provides uninterrupted power in the event that one power line fails; but in this case the redundant power supply operates only if the power supplies are connected to separate input lines. Table B-1 in the appendix "Chassis Specifications" lists system power specifications, including input voltage and operating-frequency ranges.
| Caution
To avoid problems or damage to the switch, do not mix DC-input power supplies with AC-input power supplies in individual switches. |
The following warning applies to AC power supplies:
| Warning
This product relies on the building installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). |
Note In Germany only, the electrical rating is 240 VAC and 16A.
The following warnings and cautions apply to DC power supplies:
| Warning
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a Listed and Certified fuse or circuit breaker no larger than 60 VDC, 15 A is used on all current-carrying conductors. |
| Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. |
| Warning
Before performing any of the following procedures, 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 position, and tape the switch handle of the circuit breaker in the off position. |
| Warning
Care must be given to connecting units to the supply circuit so that wiring is not overloaded. |
Before connecting each unit, note its power consumption rating in Table B-1 in the appendix "Chassis Specifications."
| Warning
This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. |
When wires are run for any significant distance in an electromagnetic field, interference can occur between the field and the signals on the wires. This fact has two implications for the construction of plant wiring:
- Bad plant wiring can result in radio frequency interference (RFI).
- Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal drivers and receivers in the switch, and can even create an electrical hazard by conducting power surges through lines and into equipment. (Review the safety warnings in the section "Safety with Electricity" earlier in this chapter.)
Note To predict and remedy strong EMI, you might need to consult RFI experts.
Refer to the publications Processor Installation Guide and ATM Port Adapter Installation Guide for detailed interface cabling information.
A standard rack-mount kit is provided for mounting the switch in a standard 19-inch (48 cm) equipment rack. The rack-mount kit is not suitable for use with telco-type equipment racks, or those with obstructions (such as a power strip) that could impair access to the port adapters and power supplies. Figure 2-3 shows the chassis footprint and outer dimensions.
Figure 2-3: Chassis Footprint and Outer Dimensions
To use the standard rack-mount kit, your equipment rack must meet the following requirements:
- The width of the rack, between the two front mounting strips or rails, must be 17.75 inches (45.08 cm).
- The depth of the rack, between the front and rear mounting strips, must be at least 19.25 inches (48.2 cm) but not more than 32 inches (80 cm).
- The height of the chassis is approximately 10.4 inches (26.4 cm). The rack must have sufficient vertical clearance to allow insertion of the chassis.
When planning your rack installation, consider the following guidelines:
- Allow at least 3 feet (1 m) of clearance in front of the rack for maintenance and removal of the processor card, carrier modules, port adapters, power supplies, and the fan assembly.
- The ports for cooling air are located on the front, rear, and both sides of the chassis, so multiple switches can be rack-mounted with little or no vertical clearance. However, avoid placing the switch in an overly congested rack.
- Consider the equipment and cabling already installed in the rack. Ensure that cables from other equipment do not obstruct the airflow through the chassis or impair access to the power supplies or port adapters. Route cables away from field-replaceable components to avoid having to disconnect cables unnecessarily to perform equipment maintenance or upgrades.
- Install heavier equipment in the lower half of the rack to maintain a low center of gravity.
If you plan to use an equipment shelf, ensure that the shelf is constructed to support the weight and dimensions of the chassis. Figure 2-3 shows the chassis footprint, which you need if you are designing a customized shelf.
| Caution
Never install the switch in an enclosed rack that is not properly ventilated
or air-conditioned. |
| Warning
To prevent overheating the switch, do not operate it in an area that exceeds the maximum recommended ambient temperature of 104ºF (40ºC). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings. |
| Warning
To prevent bodily injury when mounting or servicing the 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:
- Mount the chassis at the bottom of the rack if it is the only chassis in the rack.
- When mounting the chassis in a partially filled rack, load the rack from the bottom to the top with the heaviest equipment at the bottom of the rack.
- If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the chassis in the rack.
- Allow adequate space in front of the chassis to allow the fiber-optic cable minimum bend radius of 3.0 inches (7.6 cm).
- The chassis must always be mounted horizontally, as shown in Figure 2-4.
In addition to the preceding guidelines, review the precautions for avoiding overtemperature conditions in the section "Equipment Rack Ventilation" later in this chapter.
Figure 2-4: Installing the Chassis in the Rack
The switch operates as a standalone system mounted in a rack in a secure wiring closet. It requires a dry, clean, well-ventilated, air-conditioned environment. An internal fan assembly pulls cooling air through the chassis from the front and right side (intake) to the rear and left side (exhaust). (See Figure 2-4.) The flow of ambient air must be maintained to ensure normal operation. If the airflow is blocked or restricted, or if the intake air is too warm, an overtemperature condition can occur. Under extreme conditions, the environmental monitor can shut down the system to protect the system components.
To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. After installation, make sure the site maintains an ambient temperature of 32 to 104ºF (0 to 40ºC), and keep the area around the chassis as free from dust as possible.
Figure 2-5: Internal Airflow
If the room temperature exceeds 104ºF (40ºC), the air temperature inside the chassis could be too high. Any of the following can inhibit airflow and cause overheating:
- The wiring closet or rack where the chassis is mounted is not properly ventilated.
- The exhaust of one device is placed so it enters the air intake vent of the chassis.
- The chassis is the top unit in an unventilated rack.
Multiple switches can be rack-mounted with little or no clearance above and below the chassis. When mounting a switch in a rack with other equipment or when placing a switch on the floor adjacent to other equipment, ensure that the exhaust from other equipment does not blow into the intake vent (lower front panel) of the switch.
Table 2-1 lists the operating and nonoperating environmental site requirements. To maintain normal operation and ensure high system availability, maintain an ambient temperature and clean power at your site. The switch operates in the ranges listed in Table 2-1; however, a measurement that is approaching the minimum or maximum of a range indicates a potential problem. You can maintain normal operation by anticipating and correcting environmental anomalies before they exceed the maximum operating range.
- Operating temperature range: 32 to 104ºF (0 to 40ºC)
- Operating humidity range: 10 to 90 percent, noncondensing
- Airflow: cooling air is drawn in through the right side of the chassis. Keep the right side clear of obstructions, including dust, and away from the exhaust ports of other equipment.
Table 2-1: Specifications for Operating and Nonoperating Environments
| Environment
| Minimum
| Maximum
|
|---|
Temperature, ambient operating
| 32ºF (0ºC)
| 104ºF (40ºC)
|
Temperature, ambient nonoperating and storage
| -4ºF (-20ºC)
| 149ºF (65ºC)
|
Humidity (RH), ambient (noncondensing) operating
| 10%
| 90%
|
Humidity (RH), ambient (noncondensing) nonoperating and storage
| 5%
| 95%
|
Altitude, operating and nonoperating
| Sea level
| 10,000 ft. (3050 m)
|
Vibration, operating
| 5-200 Hz, 0.5 g (1 oct./min.)
| ---
|
Vibration, nonoperating
| 5-200 Hz, 1 g (1 oct./min.)
200-500 Hz, 2 g (1 oct./min.)
| ---
|
Planning the proper location and layout of your equipment rack or wiring closet is essential for successful system operation. Equipment placed too close together or inadequately ventilated can cause system overtemperature conditions. In addition, chassis panels made inaccessible by poor equipment placement can make maintenance difficult. Follow these general precautions when planning your equipment locations and connections:
- If environmental monitor high temperature warning messages are displayed, take immediate action to identify the cause and correct the problem by lowering the temperature in the room. Use the show environment command regularly to check the internal system status.
- Keep the front of the chassis free from obstructions and away from the exhaust air of other equipment. Remember that electrical equipment generates heat, and ambient room temperature alone might not be adequate to cool equipment to acceptable operating temperatures.
- Follow ESD prevention procedures to avoid damage to equipment. Damage from static discharge can cause immediate or intermittent equipment failure.
- Ensure the secure placement of the chassis panels, port adapters, and any port adapter slot fillers. The fan assembly pulls cooling air across the port adapters. A loose panel allows too much air to escape and can redirect the airflow away from active port adapters.
If you plan to install the switch in an equipment rack, follow these precautions to avoid overtemperature conditions in addition to the guidelines that are provided in the section "Equipment Racks" earlier in this chapter:
- Install the chassis in an enclosed rack only if it has adequate ventilation or an exhaust fan; use an open rack whenever possible.
- Note that a ventilation system that is too powerful in a closed rack might prevent cooling by creating negative pressure around the chassis and redirecting the air away from the chassis intake vent. If necessary, operate the chassis with the rack open.
- Use baffles inside the enclosed rack to assist in cooling the chassis.
- Do not place equipment near the bottom of a rack, because it might generate excessive heat that is drawn upward and into the intake ports of equipment above, leading to overtemperature conditions in the chassis at or near the top of the rack.
Take the following precautions when planning power connections to the switch:
- Check the power at your site before installation and periodically after installation to verify that you are receiving clean power. Install a power conditioner if necessary.
- Install proper grounding to avoid damage from lightning and power surges.
- Connect redundant power supplies to separate input power lines. Install a second source for redundant power if a separate line is not already in place.
When preparing your site for network connections to the switch, consider these factors related to each type of interface:
- The type of cabling required for each type (fiber-optic, coaxial, or twisted-pair cabling)
- Distance limitations for each signal type
- Specific cables you need to connect each interface
- Any additional interface equipment you need, such as transceivers, modems, channel service units (CSUs), or data service units (DSUs)
Before installing the switch, make sure all the additional external equipment and cables are on hand.
Refer to the Processor Installation Guide and ATM Port Adapter Installation Guide publications for detailed port cabling information.
A rack-mount kit is included to mount the switch in a standard 19-inch (48.7 cm) equipment rack with two unobstructed outer posts.
The procedure for attaching the rack-mount kit and installing the switch in a wiring closet rack follows. Two or more people are needed to perform this procedure.
Be sure to provide at least three feet (one meter) of clearance behind the rack for maintenance. The intake and exhaust ports for cooling air are located on the front, rear, and both sides of the chassis, so multiple switches can be stacked with little or no clearance in a rack. The chassis is 10.36 inches (25.9 cm) high.
Before rack-mounting the ATM switch, confirm that your rack-mount configuration conforms to the following criteria:
- If the switch is installed in a closed or multi-unit rack assembly, the ambient operating temperature of the rack environment might be higher than the ambient room temperature. The ambient temperature of the rack environment must not exceed a maximum temperature of 104ºF (40ºC).
- Airflow around the rack must be sufficient to maintain proper cooling of the switch.
| Caution
Before you mount the switch in a rack, make sure that the rack is secure and in no danger of falling over, the area around the rack does not exceed a maximum ambient temperature of 104ºF (40ºC), and sufficient airflow exists around the rack. |
- When installing the switch in the rack, ensure that heavier equipment is at the bottom of the rack to prevent the rack from becoming top-heavy and tipping over.
Each switch power supply must have its own branch circuit connection with sufficient overcurrent protection and direct grounding to the branch circuit.
| 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. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies or on the interface modules, or by the plastic panels on the front of the chassis. These handles were not designed to support the weight of the chassis. |
Refer to the section "Safely Lifting the Chassis" earlier in this chapter for more information about lifting the switch chassis.
You need the following tools and equipment to install the chassis:
- Number 1 and number 2 Phillips screwdrivers to tighten the captive installation screws on most systems
- A 3/16-inch flat-blade screwdriver for the captive installation screws on the processor card, carrier modules, and port adapters
- An antistatic mat or antistatic foam if you need to remove switch modules to troubleshoot the installation
- Your own ESD grounding strap or the disposable ESD strap included with the system
If you are installing the chassis in a rack, you also need the following:
- The rack-mount kit
- A tape measure and a level
The rack-mount kit is for a standard 19-inch (48.7 cm) rack with a minimum depth (between the front and rear mounting posts) of 19.25 inches (39.4 cm) and a maximum depth of 32 inches (82 cm). The width between the two front equipment mounting strips (left front and right front) must be at least 17.75 inches (45.5 cm). Two L brackets (which you attach to either the front or back of the chassis) and the mounting posts connect the chassis to the rack.
Some equipment racks provide a power strip along the length of one of the rear posts. If your rack has this feature, consider the position of the strip when planning fastener points and, before you install the L brackets on the chassis, determine whether you are going to install the chassis from the front or the rear of the rack.
Note It is important that the front of the rack be unobstructed. This kit is not suitable for use with other racks, such as telco-type equipment racks, or those with obstructions, such as a power strip. Access to the switch modules and power supplies must be unimpaired.
Take the following steps to attach the two L brackets to the switch chassis:
Step 1 Place the chassis on the floor or on a sturdy table as close as possible to the rack with clearance to allow you to move around the chassis.
Step 2 Use a tape measure to measure the depth of the rack. Measure from the outside of the front mounting posts to the outside of the rear mounting strip. The depth must be at least 19.25 inches (49.4 cm), but not greater than 32 inches (81.2 cm).
Step 3 Measure the space between the inner edges of the left front and right front mounting posts to ensure that it is 17.75 inches (45 cm) wide. (The chassis is 17.25 inches [43 cm] wide and must fit between the mounting posts.)
Step 4 Depending on your installation, remove the six cover attachment screws from either the front or the rear of the switch. (See Figure 2-4.)
Note Figure 2-6, Figure 2-7, and Figure 2-8 illustrate attaching the front of the switch to the rack. You can attach the rear of the switch to the rack instead, if your rack configuration permits.
Figure 2-6: Attaching the L Brackets
Step 5 Attach the left and right L brackets using the six M4 Phillips countersunk-head screws provided in the rack-mount kit.
Step 6 Attach the left and right cable guides, if needed, using the six M3 Phillips
flat-head screws provided in the cable mount bracket kit. (See Figure 2-4.)
Figure 2-7: Attaching the Cable Guides
Note No shelf is required with this assembly; the L brackets support the chassis in the rack.
The L brackets attach the chassis to the front mounting posts. You can mount the L brackets on either the front or rear of the chassis.
| 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:
- Mount this chassis at the bottom of the rack if it is the only chassis in the rack.
- When mounting this chassis in a partially filled rack, load the rack from the bottom to the top with the heaviest equipment at the bottom of the rack.
- If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the chassis in the rack.
| 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. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies or on the interface modules, or by the plastic panels on the front of the chassis. These handles were not designed to support the weight of the chassis. |
Follow these steps to install the switch in an open rack that allows you to slide the chassis in from the front:
Note Three people are required to perform this procedure.
Step 1 While referring to Figure 2-8, with a person positioned at either side of the chassis, grasp the bottom edge of the chassis with one hand near the front and the other near the back. Slowly lift the chassis in unison. To prevent injury, avoid sudden twists or moves.
Step 2 Position the chassis in the rack as follows:
- If the chassis front panel is in the front of the rack, insert the rear of the chassis between the rack posts, and align the five mounting holes in the L bracket with five mounting holes in the equipment rack.
- If the rear of the chassis is in the front of the rack, insert the front of the chassis between the mounting posts, and align the five mounting holes in the L bracket with five mounting holes in the equipment rack.
Figure 2-8: Installing the Switch in the Rack
Step 3 A third person should install the 10-32 x 3/4-inch slotted binder head or
12-24 x 3/4-inch Phillips-head mounting screws through the elongated holes in the L bracket and into the threaded holes in the mounting post.
Step 4 Use your tape measure and level to ensure that the chassis is installed straight and level.
Step 5 At the front of the chassis, perform the following steps:
- Make sure the ejector levers on the processor card and all carrier modules and port adapters are in their full 90-degree positions.
- Tighten any loose captive installation screws on the processor card, carrier modules, and port adapters.
Step 6 Make sure that your path to the rack is unobstructed.
The rack-mount installation is now complete.
Refer to the Processor Installation Guide and ATM Port Adapter Installation Guide for detailed port cabling information.
Connect the AC-input or DC-input power supply using the information from the "Connecting AC Power" and "Connecting DC Power" sections in appendix A "Maintaining the ATM Switch."
After making the power supply connections, you are ready to apply the power and begin configuration of your ATM switch.
If your system has problems starting up, use the information in this section to help isolate the cause. Problems with the initial startup are usually caused by an interface processor or power supply that has become dislodged from the backplane or chassis power connector. Although overtemperature conditions rarely occur at initial startup, the environmental monitoring functions are included because they also monitor DC line voltages. This publication covers the system hardware installation only.
At the initial system boot, verify the following:
- The power supplies are installed properly and are supplying power to the system.
- The system fan assembly is operating.
- The system software boots successfully.
- The processor card and all carrier modules and port adapters are properly installed in their slots and each is initialized without problems.
When all of these conditions are met, the hardware installation is complete. If the startup sequence fails, use the procedures in this chapter to isolate and, if possible, resolve the problem.
If you are unable to easily solve the problem, contact a customer service representative for assistance and further instructions. To help your service provider assist you, gather the following information before you call:
- The date you received the ATM switch
- The chassis serial number (located on a label on the front of the chassis)
- The type of software and release number
- A brief description of the problem you are having
- A brief explanation of the steps already taken to isolate and resolve the problem
- The maintenance agreement or warranty information
The power-up or hardware reset diagnostics provide the information you need to analyze the ATM switch hardware. The switch stores the test results in memory, and you can view them using the show diag power-on command. If an error is detected during the test, the processor card status LED turns red.
The flowchart in Figure 2-9 helps you determine which component of your switch might have malfunctioned.
Note Refer to the Processor Installation Guide and ATM Port Adapter Installation Guide for detailed processor card and port adapter LED information.
Figure 2-9: Troubleshooting Flowchart
Posted: Mon May 8 19:36:22 PDT 2000
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