ComNet FDC8TM1 8-Channel Contact Closure Transmitter

Ensure dependable, interference-free signaling for security, access control, and surveillance systems with the ComNet FDC8TM1 8-Channel Contact Closure Transmitter. This ComNet media converter transmits up to eight independent contact closures over a single RS-232 link or optical fiber, supporting long-distance monitoring up to 52,493 ft. Microprocessor-based packet encoding and ordering eliminate random relay changes caused by garbled or out-of-sequence data, giving you reliable event triggering for alarms, gate controls, and building automation.

Built with SPST latching relays, the FDC8TM1 preserves contact state through power loss—critical for fire, alarm, and security installations. Point-to-point architecture and NEMA TS-1/TS-2 level environmental protection deliver rugged performance in harsh field conditions. Rack-mount form factor and front-panel LEDs simplify installation and diagnostics in control rooms and network closets.

Whether integrating into a surveillance, monitoring, or traffic control system, the ComNet FDC8TM1 provides robust, low-voltage signaling you can trust. Add it to your next security or automation project to improve reliability and reduce false events.

• Reliable remote contact closure transmission over optical fiber or RS-232, enabling secure, long-distance monitoring and control
• Eight independent channels with microprocessor packet logic to prevent false relay states and ensure signal integrity for security and access control
• SPST latching relays maintain status through power interruptions, preserving system state for alarm and automation applications
• Rugged, NEMA TS‑1/TS‑2 compliant design built for traffic, industrial, and outdoor environments, reducing downtime and maintenance
• Easy rack-mount integration with LED indicators per channel for fast troubleshooting and system verification