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The Pelco FRD4 4-Channel Single Mode ST Transmitter provides transmission of four bi-directional data channels over a single optical fiber in a 2-slot wide design. This transmitter offers an optical budget of 23 dB and provides a transmission distance of 42.9 mi (69km).
The plug-and-play design ensures ease of installation by eliminating the requirement of electrical or optical adjustments. Modular in design, this transmitter unit can be rack-mounted using the EURACK/USRACK chassis (both separately), or standalone modules can be placed on a desktop or mounted to a wall (wall mount kit not required).
For standalone and wall mount installations, external power (sold separately) is required for the transmitter unit. This transmitter unit can be powered with the FEXTPS fiber external power supply (sold separately).
Note: This product requires a fiber installation with a minimum 30 dB connector return loss.
Four bi-directional data channels support RS-232, RS-422, RS-485 (2-wire/4-wire), Manchester, and Bi-Phase communication
Applicable for distances up to 42.9 mi (69km)
Laser diode for transmission of optical signals
Designed to meet the NEMA TS 1/TS 2 and the Caltrans Traffic Signal Control Equipment Environmental standards
LED status indicators for monitoring all critical operating parameters
Voltage transient protection on all power and signal input/output lines
Hot-swappable rack modules
Standalone or rack-mountable modular design
In the Box
Pelco FRD4 4-Channel Single Mode ST Transmitter
Limited 5-Year Warranty
Table of Contents
Power: Terminal block
Data: Terminal block
Number of Fibers
Optical Power Budget
Single Mode (9/125 μm)
Maximum Transmission Distance
42.9 mi (69.0 km)
Number of Channels
RS-232, RS-422, and RS-485 (2-wire/ 4-wire), Manchester, and Bi-Phase
Maximum: 250 kb/s
Simplex or full-duplex
Bit Error Rate
<1 in 10-9 at maximum optical loss budget
Surface Mount: 8 to 15 VDC at 4 W
Rack Mount: Provided by rack
Automatic resettable solid-state current limiters
Received data, transmitted data, and optical carrier detect
Meets IPC standards
Number of Rack Slots
Operating: -40 to 167°F (-40 to 75°C) Storage: -40 to 185°F (-40 to 85°C)
0 to 95%, non-condensing
Dimensions (W x D x H)
5.3 x 6.1 x 2.2" (13.5 x 15.5 x 5.6 cm)
1.15 lb (0.50 kg)
Pelco FRD4 4-Channel Single Mode ST Transmitter Review