Description
The ComNet™ FDX57M1 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. Plug-and-play design ensures ease of installation, and no electrical or optical adjustments are ever required.
Features
- Meets EIA RS232 and RS422/RS485 (2 or 4-wire) specifications (Simplex or Duplex Operation)
- Two Data Channel Capability: One full duplex or two half-duplex channels
- Only one optical fiber required between units for Fault Tolerant/Self-Healing Ring Operation
- Full data re-clocking and regeneration: no limit to the number of transceiver units used within the network
- Supports supervised multiple master architecture for unparalleled network reliability
- Remote Fault Indication allows the user to determine when a fiber break or loss of prime operating power has occurred, or a transceiver in the field has failed
- May be used to provide serial data protocol conversion between nodes (consult factory)
- Tested and certified by an independent laboratory for full compliance with the environmental requirements (ambient operating temperature, mechanical shock, vibration, humidity with condensation, high-line/low-line voltage conditions and transient voltage protection) of NEMA TS-1/TS-2 and the Caltrans Specification for Traffic Signal Control Equipment
- Robust design assures extremely high reliability in unconditioned out-of-plant/roadside environments
- NTCIP compatible
- Voltage transient protection on all power and signal input/output lines provides protection from power surges and other voltage transient events
- Wide optical dynamic range: optical attenuators are never required
- Indicating LEDs display equipment operating status, including the location of fiber breaks or failed transceivers
- Hot-swappable rack modules
- Interchangeable between stand-alone or rack mount use – ComFit
- May be DIN-rail mounted by the addition of ComNet model DINBKT1 or DINBKT4 adaptor plate
