Comnet FDC2S User Manual

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.

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INSTALLATION AND OPERATION MANUAL FDC1 / FDC2

FIGURE 1 – FDC1 TRANSCEIVER

MULTIMODE OR
SINGLE MODE
OPTICAL FIBER

BLACK
BLACK WITH WHITE STRIPE

Power Supply:
Surface Mount: 8–27 VDC @ 150mA
Rack Mount: From Rack

FIGURE 2 – FDC1 TRANSCEIVER

REAR PANELFRONT PANEL

NOTE: Remove Electrical Connector for Rack Mount Units

TECH SUPPORT: 1.888.678.9427

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