Comnet RS232/422/485 2&4W Bi-directional Universal Data Transceiver sm 1 fiber - FDX60S1A

Comnet FDX60S1A RS232/422/485 Fiber Optic Data Transceiver

Overview

The FDX60S1A is a single-fiber, bi-directional data transceiver designed to extend RS232, RS422, or 2/4-wire RS485 signals over fiber optic cable—solving the distance and noise immunity problem when legacy serial data must traverse long industrial runs or electromagnetically hostile environments. It handles asynchronous data up to 250 kbps at distances up to 69 km (43 miles) with a bit error rate below 10^-9 at maximum optical loss, making it the right choice for remote telemetry, CCTV recorder command channels, or distributed access control systems where copper serial lines would introduce ground loops or signal degradation.

Compatibility

The FDX60S1A interfaces with any device outputting or receiving standard RS232, RS422, or RS485 signals—including video recorder control inputs, network switch management ports, PTZ camera controllers, alarm panels, and industrial PLCs. The terminal block connectors accept 22–14 AWG wire; optical connection uses ST fiber connectors. Single-mode fiber (1310 or 1550 nm wavelength) is required; multimode fiber is not supported. Pair with the recommended PS-A12060 power supply for industrial installations requiring redundancy or extended voltage range operation (operates 9–30 VDC; typical draw 2 W).

Installation Notes

The FDX60S1A operates across -40°C to +75°C and survives storage to +85°C, suitable for unheated outdoor cabinets and rooftop equipment. Mount in a 1U rack slot or DIN rail enclosure. Automatic resettable solid-state current limiters protect against short circuits; no field-replaceable fuses. Fiber runs must maintain the 23 dB optical power budget into a 9µm core—confirm loss budget with your fiber contractor before installation. MTBF exceeds 100,000 hours; typical lead time and stocking available through industrial-grade distribution.

What's in the Box

• 1x FDX60S1A transceiver unit (Mini or Comfit form factor)
• 1x ST fiber optic connector (pre-installed on unit)
• 1x terminal block connector strip
• Mounting template and fasteners