COMNET Dual High-Speed RS485 2W "A" End Point Data Transceiver (Multimode)

COMNET Dual High-Speed RS485 2W "A" End Point Data Transceiver (Multimode)

COMNET Dual High-Speed RS485 2W "A" End Point Data Transceiver (Multimode)


Show MoreLess


Now Viewing:

Special Order
Expected availability: 7-10 business days

End Point: A


Special Order

This item is noncancelable and nonreturnable.

$0 VA Sales Tax Collected on This Item
Add to Wish List Item in Wish List


  • 1Description

The Dual High-Speed RS485 “A” End Point Data Transceiver from ComNet provides point-to-point or drop-and-repeat transmission of two independent simplex or duplex high-speed RS485 (2W) data signals over one optical fiber. It is transparent to data encoding allowing for broad-range compatibility. A medium-sized surface mount module, this transceiver can be used with multimode optical fiber and features built-in DIP switch-selectable bias and termination resistors for each data channel. Plug-and-play design ensures ease of installation, requiring no electrical or optical adjustments. Each transceiver incorporates bi-color (red/green) indicating LEDs for monitoring proper system operation, including the location of fiber breaks.

  • Data rates up to 1 Mbps
  • Meets RS485 (2W) specifications
  • Tested and certified 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
  • Design assures high reliability in unconditioned out-of-plant/roadside environments
  • NTCIP compatible
  • Built-in fiber link tester allows for the testing of the fiber
  • 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
  • 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 without the need for optical attenuators
  • Bi-color (red/green) LED status indicators provide rapid indication of critical operating parameters
  • Made in the USA
  • Access control systems
  • Building automation and environmental control systems
  • Computer/data equipment
  • Fire and alarm systems
  • Traffic signal control equipment
In the Box
COMNET Dual High-Speed RS485 2W "A" End Point Data Transceiver (Multimode)
  • DC Plug-In Power Supply
  • Limited Lifetime Warranty
  • Table of Contents
    • 1Description


    Data Channels 2
    Data Format 2-wire RS485 w/ Tri-State, Manchester, Bi-Phase, Sensornet
    Data Rate DC-1 Mbps
    Operating Mode Asynchronous, simplex, or full-duplex
    Bit Error Rate <10-9 @ maximum optical loss budget
    Wavelength 1310/1550 nm
    Number of Fibers 1 or 1 In/1 Out
    LED Indicators Receive Data Active, Transmit Data Active, Port A Fiber Link Status, Port B Fiber Link Status
    Dip Switches 1 to 3: Ring Length (SHR only)
    4: Master / Remote (SHR only)
    5 & 6: 680 Ohms Pull Up/Pull Down for Bias on RS485 bus
    7 & 8: 120 Ohms termination across RS485 bus
    Connectors Optical: ST
    Power: Terminal block
    Data: Terminal block
    Contact: Terminal block
    Communication Method RS485 (2 W) "A" End Point
    Fiber Multimode 62.5/125 μm
    Optical Power Budget 16 dB
    Maximum Distance 2.5 mi (4 km)
    Operating Voltage 8 to 36 VDC
    Power Consumption 4 W
    Current Protection Automatic Resettable Solid-State Current Limiters
    Circuit Board Meets IPC Standard
    MTBF >100,000 hours
    Operating Temperature -40 to 167°F (-40 to 75°C)
    Storage Temperature -40 to 185°F (-40 to 85°C)
    Relative Humidity 0 to 95% (non-condensing)
    Dimensions (L x W x H) 4.1 x 3.7 x 1.1" (10.4 x 9.4 x 2.8 cm)
    Weight 1.0 lb (0.4 kg)


    Be the first to review this item


    COMNET FDX2HSDM1A/M Accessories

    See any errors on this page? Let us know.