Comnet RS232/422/485 2&4W Bi-directional Universal Data Transceiver mm 1 fiber - FDX60M1B

Comnet FDX60M1B Bi-directional RS Data Transceiver

Overview

The FDX60M1B is an industrial-grade fiber optic transceiver that converts RS232, RS422, and RS485 serial data into fiber-optic signals for extended reach surveillance and security installations. It handles DC-to-250 kbps data rates across either multimode (4 km/2.5 miles) or single-mode fiber (69 km/43 miles) using dual-wavelength laser emitters (1310/1550 nm), making it the right choice when you need to bridge control signals, sensor data, or device communications across distances that exceed twisted-pair copper limits — particularly in electrically noisy environments, RF-congested areas, or installations where galvanic isolation is a hard requirement.

Compatibility

The FDX60M1B works with any surveillance, access control, or industrial system that outputs or ingests RS232, RS422, or RS485 serial data. Common pairings include gate controllers, card reader interfaces, PTZ camera control chains, third-party sensor systems, and backbone links between distant NVRs or DVRs that lack native fiber connectivity. Because it operates at the serial protocol level, it is agnostic to the control system above it — Axis, Hikvision, Milestone, Genetec, and proprietary surveillance platforms all function identically once the fiber link is established. Pair it with the recommended Comnet PS-A12060 power supply for 9-30 VDC input.

Installation Notes

The FDX60M1B draws 2 W at full operating voltage (9-30 VDC), so standard surveillance PSU channels are adequate. Choose multimode fiber (ST connectors, 2 fibers included) for short-to-medium runs under 4 km; select single-mode fiber for distances up to 69 km but confirm your fiber plant supports single-mode before ordering — multimode and single-mode are not interchangeable. The unit tolerates -40°C to +75°C operating temperature, suitable for outdoor fiber cabinets and unheated enclosures. Both the mini form factor (4.1 × 3.7 × 1.1 in) and ComFit rack variant (1 RU) are available; verify your enclosure layout before selection. Optical power budget is rated 16 dB (multimode) or 23 dB (single-mode) — standard for surveillance-grade fiber runs.