Fujitsu FLM 150 ADM Maintenance And Trouble Clearing page 139

Maintenance and Trouble Clearing
FJTU-320-515-480
Step 10 Repeat trouble analysis procedures (see Section 2, Plug-In Unit Front-Panel
Devices). Are the LINE and FAIL LEDs off?
Complete your fault-reporting
documentation.
Note: The Hardware Data Record form is provided in Appendix A of the Plug-In Unit
Installation practice, FJTU-320-515-220.
You have completed this procedure.
Issue 9, May 1999
If Yes:
Figure 4-27: HC1A-L6x1 Unit Front Panel and Side View
FNC and FNC Customer Use Only
4.11: Replacing the OC-12 Optical Channel
If No:
Call the Fujitsu Technical Assistance Center
at 1-800-USE-FTAC (1-800-873-3822) for
assistance.
OPT IN
OPT OUT
(HC1A-6Lx1) Units
DANGER
Invisible laser
radiation from
connectors
when uncoupled
AVOID DIRECT
EXPOSURE
TO BEAM
CN4 CN3
RCV
SEND
FAIL
THRU
LINE
SEND
RCV
ON LINE
HC1A-6LX1
Vol. ll, Page 480.4-47