INS_FDC1-FDC2_REV–
02/21/11
PAGE 1
INSTALLATION AND OPERATION MANUAL
FDC1 / FDC2
FIBER OPTIC CABLE BREAKAGE MONITOR/DETECTOR
The FDC1 single-channel and FDC2 dual-channel modems are designed to
detect and report a breakage or the loss of optical signal in either multimode or
single-mode fiber plants. The dual-channel version contains two independent
transmitter and receiver units in one compact package, and is ideal for
continuously monitoring the optical status of two separate fiber loops.
The solid-state non-latching relays default to a normally open state in the event of
power loss or loss of optical signal. See
Figure 5
on
Page 4
for contact settings.
Each module incorporates power and individual status indicating LED’s for
monitoring confirmation of contact closure of each of the eight channels. See
Figures 6 and 7
on
Page 4
for an explanation of the LED indicators.
Packaged in the exclusive ComNet ComFit housing, these units may be
either wall or rack-mounted, or may be DIN-rail mounted by the addition of
ComNet model DINBKT1 adaptor plate. See
Figure A
on
Page 5
for mounting
instructions.
See
Figures 1 – 7
for complete installation information.
