Fujitsu FLM 150 ADM Maintenance And Trouble Clearing page 140

Maintenance and Trouble Clearing
FJTU-320-515-480
Figure 4-28: Interface Cables Between the Group 1 and Group 2 Units
Issue 9, May 1999
DANGER DANGER
Invisible laser Invisible laser
radiation from radiation from
connectors connectors
when uncoupled when uncoupled
AVOID DIRECT AVOID DIRECT
EXPOSURE EXPOSURE
TO BEAM TO BEAM
CN4 CN3
RCV
SEND
FAIL FAIL
THRU
LINE LINE
SEND SEND
RCV RCV
ON LINE ON LINE
HC1A-6LX1 HC1A-6LX1
FNC and FNC Customer Use Only
4.11: Replacing the OC-12 Optical Channel
CN4 CN3
RCV
SEND
THRU
(HC1A-6Lx1) Units
Vol. ll, Page 480.4-48