Replacing An Ac Psu; Table 88 Ac Psu Removal Features - Alcatel-Lucent 7750 SR-a4 Installation Manual

Replacing an AC PSU

7750 SR-a4 and SR-a8 Installation Guide
Key
1
2
3
4
To remove an AC PSU module:
Step 1. Disconnect power from the external branch circuit.
Step 2. Disengage the power cord retainer by lifting the retainer away from the power cord.
Step 3. Remove the AC power cord from the inlet on the front of the PSU.
Step 4. Ensure that the LED is unlit (Key 1 in
Step 5. Press and hold the latch lock to the left to unlock the PSU (Key 3 in
Figure 57).
Step 6. Grip and hold the handle on the PSU with your hand (Key 2 in
Figure 57).
Step 7. Pull the PSU module out of the slot (Key 4 in
Step 8. Do one of the following:
a. If you are installing a replacement PSU module, go to
on page
b. If you are not installing a replacement PSU module, insert an impedance panel
in the empty slot.
The following procedure assumes that you have removed the AC PSU, as described in
Removing an AC PSU.
Figure 58 and Figure 59
describes the features.
Table 88: AC PSU Removal Features
Description
LED
Handle
Spring-loaded latch lock
Direction of movement
175.
show how to replace an AC PSU in the 7750 SR-a chassis.
Appendix C: Field-Replaceable Units
Figure 56 and Figure
Figure 56 and
Replacing an AC PSU
57).
Figure 56 and
Figure 56 and
Figure 57).
Table 89
175