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Cisco 10005 Extender Card Information

.Installation Guidelines

Required Tools and Equipment

Installing or Replacing Extender Cards

Installing an Extender Card

Removing an Extender Card

Troubleshooting

Cisco 10005 Extender Card Information

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All Cisco 10005 line cards connect to a backplane in the center of the chassis, and require extender cards to deliver the alarm, BITS clock, and DS3 signals to the rear of the chassis to make them accessible. The Cisco 10005 alarm extender card and T3/E3 extender card extend and terminate these signals.

The alarm extender card slides into the bottom slot in the back of the chassis, and terminates the alarm signals with wire wrap header connectors (Figure A-1).

Figure A-1 Alarm Extender Card

The T3/E3 extender card extends the signals of the channelized T3 line card located in the slot directly opposite in the front of the chassis, and terminates the eight pairs of DS3 signals with BNC connectors (Figure A-2)

Figure A-2 T3/E3 Extender Card

.Installation Guidelines

Before you perform the procedures in this guide, we recommend that you read Chapter 16, "Preparing for Installation."

The Cisco 10005 system is hot-swappable, which means you can remove and replace line cards while the system is operating.

Be sure to remove the correct extender card. If you remove the alarm extender card, this disconnects the BITS clock and external alarm devices. If you remove the T3/E3 extender card, this stops all traffic to and from its associated CT3 line card.

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Caution To prevent electrostatic discharge (ESD) damage, handle extender cards by the faceplate or the card carrier edges only. Avoid touching the extender card printed circuit board, components, or any connector pins.

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Required Tools and Equipment

The following tools and equipment are required to install an extender card:

•No. 1 Phillips screwdriver

•ESD-preventive wrist or ankle strap with connection cord

Installing or Replacing Extender Cards

This section describes how to install or replace an extender card in the Cisco 10005 chassis, and contains the following procedures:

•Installing an Extender Card

•Removing an Extender Card

•Troubleshooting

Installing an Extender Card

You can only install the alarm extender card in the lowest slot in the rear of the Cisco 10005 chassis.

The T3/E3 extender card extends the DS3 signals of the channelized T3 line card, located in the slot directly opposite in the front of the chassis. For example, a T3/E3 extender card installed in the highest slot in the rear of the chassis extends the signals of the channelized T3 line card that is installed in the highest slot in the front of the chassis.

Use the following procedure to install an extender card into the rear of the Cisco 10005 chassis:

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Note If you are replacing an extender card, see the "Removing an Extender Card" section before you begin this procedure.

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Step 1 Attach an antistatic wrist strap to your wrist and either to an ESD socket on the chassis or to a bare metal surface on the chassis or frame.

Step 2 Hold the faceplate of the extender card with one hand and place your other hand under the card (to support the weight of the card). Position the card in front of the card cage slot.

Step 3 Carefully align the left and right edges of the extender card with the left and right guides in the chassis, and slide the card into the slot until it begins to seat in the backplane connectors.

Step 4 Securely tighten both captive screws on the extender card.

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Removing an Extender Card

Ensure that all wires or cables are disconnected from the extender card, and then use the following procedure to remove an extender card from the chassis:

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Step 1 Attach an antistatic wrist strap to your wrist and either to an ESD socket on the chassis or to a bare metal surface on the chassis or frame.

Step 2 Loosen both captive screws on the extender card.

Step 3 Hold the faceplate of the extender card with one hand and place your other hand under the card carrier (to support the weight of the card).

Step 4 Slide the extender card out of the slot and place it on an antistatic surface or in an antistatic bag.

Step 5 Cover the empty slot with a blank faceplate or install another extender card according to the "Installing an Extender Card" section.

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Warning Blank faceplates (filler panels) serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they confine electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, power modules, and faceplates are in place. Statement 156

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Troubleshooting

Table 1 provides tips for troubleshooting the extender cards.

Table 1 Troubleshooting the Extender Card

Symptom	Possible Cause	Corrective Action
Extender card does not operate properly	1. The card is not properly seated. 2. Bad extender card slot or midplane connector. 3. Bad interface connector on the extender card. 4. Bad extender card.	1. Reseat the card in its slot. Be sure the captive screws are tight. 2. Remove the extender card and install it in another chassis slot. 3. Replace the extender card. 4. Replace the extender card.