I/O Port Controller (Iop) Module (E2044-Aa) - DEC Rackmount 7000 AXP Installation And Owner's Manual

Removal and Replacement

5.2.5 I/O Port Controller (IOP) Module (E2044-AA)

Perform the following procedure to remove the I/O port controller module:
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Put on an antistatic wriststrap.
An antistatic wriststrap must be worn when handling any module
to prevent damage to the module.
3. Loosen the slotted captive screws that secure the I/O cable(s) to the
connector(s) on the IOP module (see Figure 5–5) and disconnect the cable(s).
4. Alternately loosen the two screws that secure the IOP module in the chassis
until the module is free of the connector (see Figure 5–5). Do not loosen one
screw completely before loosening the other. This keeps the module from
binding in the card guides.
5. Slide the module from the card cage.
To replace the IOP module, align the tracks of the module with the tracks in the
card cage slot and reverse steps 1 through 5.
5–10 Removal and Replacement
WARNING
WARNING
CAUTION