Token-Ring Adapter Installation and Support Guide

Replacing a TRSA

Token-Ring Adapter Installation and Support Guide—426955-001

3-19

Inspect the New TRSA and Backplane

To inspect a TRSA:

Visually inspect the TRSA and the backplane connector for damage. Use a flashlight, if

necessary, to check for bent or broken pins. You can damage pins by bumping or

jamming the TRSA's shell against a surface, which can partially close the hole in the

connector-pin socket. If the TRSA has a damaged connector-pin socket, do not install it.

Unpack and Install the New TRSA

The following paragraphs describe how to unpack and install the new TRSA.

Unpack the TRSA

1. Put on the electrostatic discharge (ESD) wriststrap and attach the grounding clip to

the antistatic mat.

2. Place the package containing the TRSA on the antistatic mat.

3. Open the packing container and remove the TRSA

4. Disconnect the grounding clip of your ESD wriststrap from the antistatic mat and

connect it to an exposed, unpainted metal surface on the TRSA.

5. Grasp the TRSA by its ejector in one hand, support the bottom edge of the TRSA

with the other hand, and carry the TRSA to the service side of the system enclosure

and set it down.

6. Disconnect the grounding clip of your ESD wriststrap from the TRSA and connect it

to an exposed, unpainted, metal surface on the service side of the system enclosure,

such as the ventilation holes on the processor multifunction (PMF) adapter or I/O

multifunction (IOMF) CRU.

Figure 3-4

on page 3-17 shows how to connect the grounding clip to the ventilation

holes on the PMF adapter or IOMF adapter.

Caution. If you plug the TRSA that has a damaged socket into a slot, that TRSA's backplane

pins and the connectors on other adapter boards that are plugged into that slot can be

damaged. Moving a damaged board from slot to slot can damage other slots and other adapter

boards.

Note. Whenever you handle a

TRSA, you should follow standard operating practices to avoid

damage to the equipment.

Caution.

When opening the packing container, be careful not to cut into the ESD

protective bag.

Note. The TRSA weighs 6.75 pounds (3 kilograms).