The ComNet FDX60(M,S)[-M] data transceivers provide point-to-point transmission of simplex or duplex EIA RS232/RS422/RS485 (2W/4W) data signals over one or two optical fibers. The transceivers are transparent to data encoding allowing for broad-range compatibility. Models within this series are available for use with multimode or single mode optical fiber.- Robust design assures extremely high reliability in unconditioned out-of-plant/roadside environments- NTCIP compatible- Wide optical dynamic range: optical attenuators are never required- Status indicating LEDs provide rapid indication of critical operating parameters.- Meets EIA RS232C/D and RS422/RS485 (2 or 4-wire) specifications- Fiberlink Fiber Link Tester- Voltage transient protection on all power and signal input/output lines provides protection from power surges and other voltage transient events.- 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.- Standard ComFit models are hot-swappable.- Lifetime Warranty- ComFit standard form factor is designed for wall, surface, rack, or DIN rail mount installations (using optional card cage or DIN mounting bracket).- Compact form-factor saves space in those installations where space may be at a premium.