Table 92 -48 Vdc Psu Replacement Features; Figure 64 Replacing A -48 Vdc Psu (7750 Sr-A8) - Alcatel-Lucent 7750 SR-a4 Installation Manual

Removing and Replacing a PSU
182
Figure 64: Replacing a –48 VDC PSU (7750 SR-a8)
2
4
Table 92: –48 VDC PSU Replacement Features
Key
1
2
3
4
To replace a –48 VDC PSU module:
Step 1. Ensure external power has been disconnected or turned off at the branch circuit
device.
See 7750 SR-a –48 VDC PSU LED and Connectors
Step 2. Align the PSU module with the chassis guides in power slot (Key 1 in
Step 3. Grip and hold the handle (Key 2 in
1
3
Description
Chassis guide
PSU handle
Spring-loaded latch lock
Direction of movement
Figure
7750 SR-a4 and SR-a8 Installation Guide
for more information.
63) on the PSU with your hand.
24584
Figure 63).