Table 90 -48 Vdc Psu Removal Features; Figure 61 Removing A -48 Vdc Psu (7750 Sr-A8) - Alcatel-Lucent 7750 SR-a4 Installation Manual

7750 SR-a4 and SR-a8 Installation Guide
Figure 61: Removing a –48 VDC PSU (7750 SR-a8)
2
4
Key
1
2
3
4
To remove a –48 VDC PSU module:
Step 1. Ensure external power has been disconnected or turned off at the branch circuit
device. The status LED on the faceplate (Key 1 in
–48 VDC PSU module must be unlit.
See 7750 SR-a –48 VDC PSU LED and Connectors
Step 2. Remove the protective cover from the terminal block (Key 4 in
1
3
Table 90: –48 VDC PSU Removal Features
Description
LED
PSU handle
Spring-loaded latch lock
Direction of movement
Appendix C: Field-Replaceable Units
Figure 60
for more information.
24583
or Figure 61) of the
Figure 62).
179