Comnet FDC24NL 24 Channel Duplex Contact Closure Transceiver (Non-Latching Relays), RS-422 Interface

The Comnet FDC24NL Series contact closure transceiver units provide of up to twenty four independent duplex dry switch or relay closures using a single SFP optical port or any four-wire RS-422 copper circuit. The supports an integrated field expandable data bus allowing 12 uniquely addressed be connected providing 288 unique duplex contact over circuit.

The information is sent in packets that are ordered and encoded, ensuring extremely robust transmission. are garbled, out sequence, bit errors will not cause random changes state on relays. One relay can be optionally re-purposed as summary fault alarm triggered event unit loses fiber bus communications. offered with non-latching solid Each module incorporates link individual status indicating LEDs for monitoring confirmation input output channels. Packaged the exclusive Comfit housing, these may either wall rack-mounted, DIN-rail mounted by addition model DINBKT1 DINBKT4 adaptor plate.

Features

• Supports multiple same address one-to-many many-to-one type scenarios
• Transmits twenty-four contacts port, via 4-wire circuit
• Designed meet full compliance environmental requirements (ambient operating temperature, mechanical shock, vibration, humidity condensation, high-line/lowline voltage conditions transient protection) NEMA TS-1/TS-2 Caltrans Specification Traffic Signal Control Equipment
• Indicating status fault
• Unique cascadable design allows easy system expansion (288 contacts) circuit
• Automatic resettable solid-state current limiters
• Hot-swappable modules
• Interchangeable between stand-alone mount