multi-protocol RS232/422/485 data transceiver featuring self-healing ring operation

The ComNet™ FDX57 series Self-Healing Ring Transceiver unit is a fully-digital modem designed for implementing RS232, RS422 or RS485 2 or 4-wire data communications networks of the highest possible reliability. A network of FDX57 units can support one full-duplex or two half-duplex data channels. These transceivers also feature data translation to convert between data protocols. Data re-clocking and regeneration permit an almost unlimited number of transceiver/controller units to be used within the network. These environmentally hardened transceivers are ideal for use in unconditioned out-of-plant or roadside installations and, unlike many competing designs, only one optical fiber is required between units to implement a fully self-healing ring. Bi-color (Red/Green) LED indicators are provided for rapidly ascertaining equipment operating status, including the location of fiber breaks. Packaged in the exclusive ComNet ComFit housing, these units may be either shelf or rack-mounted, or may be DIN-Rail mounted by the addition of ComNet model DINBKT1 adaptor plate. Plug-and-play design ensures ease of installation, and no electrical or optical adjustments are ever required.

Application Diagram