Comnet FDC80R485 Specsheet

8-Channel Supervised Contact Closure

Transmitter and Receiver

FDC80 Series

HARDENEDINCLUDED

The ComNet™ FDC80 Series contact closure transmitter and receiver units provide
transmission of up to eight independent supervised or unsupervised dry switch or
relay contact closures over a single optical fiber, or any two-wire RS-485 copper circuit.
Microprocessor-based logic transmits the contact closure information in packets that
are ordered and encoded, ensuring extremely robust and reliable transmission. Packets
that are garbled, or packets out of sequence with transmission bit errors will not cause
random changes of state in the FDC80R receiver unit relays. The supervising function
in the FDC80T transmitter allows for the detection of short and open circuit conditions,
and normally open or normally closed contact inputs are supported. System faults
are displayed via LED status indicators, and user-programmable summary fault alarm
contacts are triggered in the FDC80R receiver unit. The FDC80R receiver is offered in
both latching and non-latching relay configurations. External series and shunt resistors are
included for each of the 8 contact input channels, for contact supervision.

8

FEATURES

› Transmits up to eight independent supervised or
unsupervised dry switch or relay contacts over one optical
fiber, or via a 2-wire RS-485 point-to-point copper circuit

› Microprocessor-based logic and latching relays in the

receiver unit eliminate random contact closure states in the
event of a loss of the link, or a loss of prime operating power

› Tested and certified by an independent laboratory for full

compliance with the environmental requirements (ambient
operating temperature, mechanical shock, vibration, humidity
with condensation, high-line/low-line voltage conditions and
transient voltage protection) of NEMA TS-1/TS-2 and the
Caltrans Specification for Traffic Signal Control Equipment

› Indicating LEDs for monitoring power, contact closure status,

and summary fault

› Automatic resettable solid-state current limiters

› Hot-swappable rack modules

› Interchangeable between stand-alone or rack mount use –

ComFit

› Lifetime Warranty

APPLICATIONS

› Alarm Event Triggering

› Fire Alarm & Intrusion Detection Systems

› Lane/Gate Control

› PIR Signal Transmission

› Building Automation and Environmental Control Systems

LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427

FDC80 Series

SPECIFICATIONS

8-Channel Supervised Contact Closure

Transmitter and Receiver

Contacts

Input/Output Channels 8
Input Contacts Normally open or normally closed
Output Contact Rating 30 VDC, 1A, resistive load only, normally open
Response Time 25 msec, typ. 35 msec, max
Summary Fault Alarm 1 (RX Only), dry relay contacts, Form C, 30 VDC
1A, non-latching

Electrical & Mechanical

Rack Slots 1 (Transmitter), 2 (Receiver)
Current Protection Automatic Resettable Solid-State Current Limiters
Circuit Board Meets IPC Standard
Size (L×W×H) Transmitter: 6.1 × 5.3 × 1.1 in (15.5 × 13.5 × 2.8 cm)

Receiver: 6.1 × 5.3 × 2.2 in (15.5 × 13.5 × 5.6 cm)

Shipping Weight <2 lb / 0.9 kg

Connectors:

LED Indicators Contact

Power

Summary Fault

Power

Operating Voltage Range 8 to 15 VDC (or from C1 Rack, sold separately)
Power Consumption 3 W Max

Contact Input Screw Terminals
Contact Output Screw Terminals
Power Screw Terminals
Summary Fault Alarm Screw Terminals

Environmental

MTBF >100,000 hours
Operating Temp -40˚ C to +75˚ C
Storage Temp -40˚ C to +85˚ C
Relative Humidity 0% to 95% (non-condensing)¹

ORDERING INFORMATION

Part
Number Description

FDC80TM1 8-Channel Supervised Contact Closure Transmitter 1 Multimode‡ – 62.5/125µm 16 dB 16 km (10 mi) 1

FDC80TS1 8-Channel Supervised Contact Closure Transmitter 1 Single Mode‡ – 9/125µm 23 dB 69 km (43 mi) 1

FDC80NLRM1 8-Channel Supervised Contact Closure Receiver (Non-Latching) 1 Multimode‡ – 62.5/125µm 16 dB 16 km (10 mi) 2

FDC80NLRS1 8-Channel Supervised Contact Closure Receiver (Non-Latching) 1 Single Mode‡ – 9/125µm 23 dB 69 km (43 mi) 2

FDC80RM1 8-Channel Supervised Contact Closure Receiver 1 Multimode‡ – 62.5/125µm 16 dB 16 km (10 mi) 2

FDC80R S1 8-Channel Supervised Contact Closure Receiver 1 Single Mode‡ – 9/125µm 23 dB 69 km (43 mi) 2

FDC80T485 8-Channel Super vised Contact Closure Transmit ter, RS-485 Interface — — — 457 m (1500 ft)³ 1

FDC80R485 8-Channel Supervised Contac t Closure Receiver, RS- 485 Interface — — — 457 m (1500 ft)³ 2

FDC80NLR485

Accessories
Options

8-Channel Supervised Contact Closure Receiver (Non-Latching),
RS-485 Interface

9 Volt DC Plug-in Power Supply, 90-264 VAC, 50/60 Hz (Included)
[1] Add ‘/C’ for Conformally Coated Circuit Boards to extend board to condensation conditions(Extra charge, consult factory)
DIN-Rail Mounting Adaptor Plate Kit – With mounting hardware (Optional, order model DINBKT1)

Fibers
Req’d Fiber

— — — 457 m (1500 ft)³ 2

Optical Pwr
Budget

Maximum
Distance²

#Rack
Slots

[2] Optical transmission distance is limited to optical loss of the fiber and any additional loss introduced by connectors, splices and patch panels.

Distance can also be limited by fiber bandwidth. For 50/125µm Fiber subtract 4 dB from Optical Power Budget.

[3] Distances greater than 1500 ft are possible. Contact factory for further details.

TYPICAL APPLICATION

C C

1k

1k

3 CORPORATE DRIVE

8 TURNBERRY PARK ROAD

8 8

FDC80TS1 FDC80RS1

Optical Fiber

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DANBURY, CONNECTICUT 06810

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GILDERSOME

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MORLEY

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USA

T: 203.796.5300

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LEEDS, UK LS27 7LE

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T: [phone]

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F: 203.796.5303

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TECH SUPPORT: 1.888.678.9427

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F: [phone]

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[e-mail]

ALARM

NC
Common
NO

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[e-mail]

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