Fujitsu FLM 150 ADM Maintenance And Trouble Clearing page 142

Maintenance and Trouble Clearing
FJTU-320-515-480
Refer to Figures 4-29 and 4-30 while performing the following procedures.
Please note that the both upper and lower card levers should be extended, as
shown in Figure 4-29, when installing or removing the optical unit.
The secondary latch, located at the bottom of the optical unit as shown in
Figure 4-30, is also visible when viewing the optical unit from the side.
Optical
Connector
Covers
Issue 9, May 1999
4.12: Replacing the OC-3 Optical Channel (HC1A
Figure 4-29: Removing the Optical Unit
FNC and FNC Customer Use Only
Removal Instruction Label
and MC6A) Units
Vol. ll, Page 480.4-50