Contact Closure Over Fiber Optic

Video/Data/Dry Contact Closure to Fiber Optic Converter

Fiber Optic Transceiver to Video/RS485/232/422 and Dry Contact


The 1 ch forward video + 1 ch RS232/422/485 + 1 ch Bidi contact closure to fiber converter transmit binary signal in one single optic fiber. It can be used in infrared alarm detector, fire, smoke detectors, anti-theft detectors and alarm system of long distance connection.

The fiber converter adopts optic fiber transmission technology transmitting multi channels contact closure signal over a single fiber. All digital uncompressed technology ensures real time transmission without distortion.

The modular design makes it easier for customer flexibly choose configuration according to specific application. Convenient for customer improve cable utilization rate. It has the advantages of high integration, small volume, low power consumption, reliable work, convenient for installation and operation.

Technical Specifications:




Output Power

 -14~ -8dBm  /  -5~0dBm

Optic fiber

50/125u multimode 62.5/125u multimode 9/125u single mode

Rx sensitivity


Optical connector

FC ST SC(Optional)


0~2KM (MM)  /  0~20 or 50KM  (SM) 


Data protocol

RS232 RS422 RS485 

Data rate

0~ 200 Kbps

Error rate

< 10-9


Standard terminal lead

Binary input/Output


Standard terminal lead

Contact Closure 

Dry contact 

Signal input

Alarm, Binary input, support TTL、RS-232/422/485 or passive switch button

Signal output

Arbitrary alarm, Binary output, support TTL、RS-232/422/485 or relay output


Other parameters:

Total Weight: 2kg/pair(with power and package)

Operating Voltage: AC100-240V / DC 12V

Operating Temperature : -20℃~ +75℃

Storing Temperature : -40℃~ +85℃

Humidity: 0~95% Non-condensing

MTBF : ≥ 100000Hours

Standalone Dimensions: 183 * 154 * 30mm

Warranty: 3-5 years


* You can also contact us for a quote by E-mail:

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