Comnet FDC8NLRM1 Specsheet

8-Channel Optically Isolated Contact Closure Transmitter

FDC8ISOT(M,S)1

The ComNet™ FDC8ISOT 8-Channel Contact Closure Transmitter unit provides up to
eight independent normally-open (NO) dry contact closures over one multimode or
single-mode optical fiber, when used in conjunction with the companion ComNet model
FDC8NLR Non-Latching Receiver or FDC8R Latching Receiver units. Each of the contact
closure inputs are optically isolated at 1500V to ground, for those applications where
high stray or transient voltages may exist. Microprocessor-based logic in the FDC8ISOT
Transmitter detects a customer-furnished switch or contact closure, and encodes the
closure into robust data packets that are mapped and transmitted to the FDC8NLR
Receiver. Packets received with excessive bit errors will not result in random changes in
the receiver relay contact resting or actuated states, making this system ideal for mission­critical remote switching applications. Plug-and-play design ensures ease of installation
and operation, and no optical or electrical adjustments are ever required.

FEATURES

› Transmits up to eight contact closures over one optical fiber

› Eight channel Point-to-Point architecture

› Optically isolated inputs rated at 1500 V to ground

› Designed to meet full compliance with the environmental

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

› Microprocessor-based logic eliminates random contact

closure status in electrically noisy environments.

› Ambient operating temperature range: -40˚ C to +75˚ C for

deployment in virtually any unconditioned out-of-plant or
roadside environment

› Status indicating LEDs provide rapid indication of critical

operating parameters

› Hot-swappable rack modules

› Interchangeable between stand-alone or rack mount use –

ComFit

› May be DIN-rail mounted by the addition of ComNet DIN-Rail

adaptor plate (Model DINBKT1 or DINBKT4, sold separately)

› Lifetime Warranty

HARDENEDINCLUDED

8

APPLICATIONS

› Remote control of mission-critical vital trackside relaying or

roadside signaling equipment

› Remote operation of lane, gate, or door operators

or controllers

› Building HVAC, industrial control, and SCADA networks

› Non-latching fire and intrusion alarm systems

› Non-latching triggered alarm & PIR (Passive Infrared)

detection systems

› Latching Relay output applications

LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427

FDC8ISOT(M,S)1

SPECIFICATIONS

8-Channel Optically Isolated Contact Closure Transmitter

Contacts

Input Channels 8
Input Contacts Open: 0 mADC

Closed: 3mADC

Voltage Input Range: +5 – +15 VDC
Response Time 25 msec maximum
Optical Isolation Rating 1500 V to ground

Connectors

Contacts Terminal Block
Optical ST Connectors

LED Indicators Power

Contact Closure

Channel Status

Power

Operating Voltage Range 8 to 15 VDC
Power Consumption 3 W
Rack Power Supplied From Rack

Electrical & Mechanical

Number of Rack Slots 1
Current Protection Automatic Resettable Solid-State Current Limiters
Circuit Board: Meets IPC Standard
Size 6.1 × 5.3 × 1.1 in (15.5 × 13.5 × 2.8 cm)
Shipping Weight <2 lb./0.9 kg

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

Fibers

Part Number Description

FDC8ISOTM1 8-Channel Contact Closure Transmitter 1 Multimode 62.5/125µm 16 dB 16 km (10 miles) 1

FDC8NLRM1 8-Channel Contact Closure Non-Latching Receiver 1 Multimode 62.5/125µm 16 dB 16 km (10 miles) 1

FDC8RM1 8-Channel Latching Contact Closure Receiver Multimode 62.5/125µm 16 dB 16 km (10 miles) 1

FDC8ISOTS1 8-Channel Contact Closure Transmitter 1 Single Mode 9/125µm 23 dB 69 km (43 miles) 1

FDC8NLRS1 8-Channel Contact Closure Non-Latching Receiver 1 Single Mode 9/125µm 23 dB 69 km (43 miles) 1

FDC8RS1 8-Channel Latching Contact Closure Receiver 1 Single Mode 9/125µm 23 dB 69 km (43 miles) 1

Accessories
Options

DC Plug-in Power Supply, 90-264 VAC, 50/60 Hz (Included)
[1] Add ‘/C’ for Conformally Coated Circuit Boards (Extra charge, consult factor y)
DIN-Rail Mounting Adaptor Plate Kit – With mounting hardware (Optional, order model DINBKT1 or DINBK T4)

Required Fiber

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.

Complies with FDA Performance Standard for Laser Products, Title 21, Code of Federal Regulations, Subchapter J

In a continuing effort to improve and advance technology, product specifications are subject to change without notice.

TYPICAL APPLICATION

C C

3 CORPORATE DRIVE

8 TURNBERRY PARK ROAD

8 8

FDC8ISOTS1

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DANBURY, CONNECTICUT 06810

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GILDERSOME

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MORLEY

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LEEDS, UK LS27 7LE

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USA

T: 203.796.5300

FDC8NLRS1

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T: [phone]

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F: 203.796.5303

OPTICAL FIBER

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TECH SUPPORT: 1.888.678.9427

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F: [phone]

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[e-mail]

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[e-mail]

03 Jul 2014© 2014 Communic ation Netwo rks. All Righ ts Reserv ed. “ComNet ” and the “ComNe t Logo” are regi stered tra demarks of Com munication Ne tworks.