COMNET Anti-Streaming RS-232/422 Multimode Line Terminating Transceiver

COMNET Anti-Streaming RS-232/422 Multimode Line Terminating Transceiver
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Expected availability: 7-10 business days
$72/mo. suggested payments.*
with 6 Mos. Promo Financing

Important Notice

  • This item is noncancelable and nonreturnable.
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COMNET FDX55M2E Overview

The Anti-Streaming RS-232/422 Multimode Line Terminating Transceiver from ComNet can be used as a terminator at the receiving end. It is designed for implementing full-duplex RS232 drop-and-repeat poll-and-respond traffic signalization/communications data networks utilizing two optical fibers. This environmentally-hardened unit is suitable for use in unconditioned out-of-plant or roadside installations. The master-configured transceiver unit may be located anywhere within the network. This makes it suitable for applications involving on-street master controllers with upstream and downstream communication requirements.

The Anti-Streaming RS-232/422 Drop-and-Repeat Data transceiver is compatible with the FDX50, FDX51 and FDX52 Series of optical modems (not included). Manually re-settable anti-streaming is included for unparalleled network protection. Plug-and-play design ensures ease of installation as no electrical or optical adjustments are required.

  • Meets EIA RS232C/D specification
  • NTCIP compatible
  • Tested and certified for NEMA TS-1/TS-2 and the Caltrans Specification for Traffic Signal Control Equipment
  • Robust design
  • User-selectable DTE or DCE interface ensures ease of installation and maximum versatility
  • Supports Request to Send (RTS) and Clear to Send (CTS) signals
  • RJ-11 expansion port provides network branching capability by electrically linking co-located transceiver units
  • Voltage transient protection on all power and signal input/output lines provide protection from power surges and other voltage transient events
  • Wide optical dynamic range
  • User-configurable optical and electrical Anti-Streaming provides network protection against faulty streaming controller operation
  • Indicating LEDs display equipment operating status
  • Hot-swappable rack modules
  • Interchangeable between stand-alone or rack mount use
  • Can be DIN-rail mounted by the addition of ComNet model DINBKT1 or DINBKT4 adapter plate


Data FormatRS-232, RS-422
Data Rate0 to 115 kbps
Operating ModeAsynchronous, simplex, or full duplex
Bit Error RateUp to 1 in 10-9 @ maximum optical loss budget
Timeout SelectionAnti-Streaming Time-out:
4, 8, 16, 64 sec or infinity (disabled)
Wavelength1310 nm
Number of Fibers2
Optical Power Budget14 dB
Maximum Operating Distance2.5 miles (4 km)
Optical EmitterLaser
LED IndicatorsTransmit Data
Receive Data
Clear to Send (CTS)
Request to Send (RTS)
Fault/Anti-Streaming Activate
ConnectorsOptical: ST
Power: Terminal block
Data: Type DB-25S
Expansion Port: RJ-11
Power9 to 30 VDC @ 2.5 W
Power Consumption2.5 W
Number of Rack Slots2
Current ProtectionAutomatic resettable solid-state current limiters
Circuit BoardMeets IPC standard
MTBFUp to 100,000 hours
Operating Temperature-40 to 167°F (-40 to 75°C)
Storage Temperature-40 to 185°F (-40 to 85°C)
Relative Humidity0 to 95% (non-condensing)
Dimensions6.1 x 5.3 x 2.2" (15.5 × 13.2 × 5.6 cm)
WeightNot specified by the manufacturer
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