Transition Networks Point System RS422/485 Copper to Fiber Media Converter - 1 x , 1 x SC
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Media Converters
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Transition Networks
Your Price: $387.20

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General Information

Transition Networks' serial RS-422/485 to Fiber Media Converter allows you to extend the distance between serial connections with the use of fiber optic cable. This full-featured converter operates in 2-wire mode for RS-422 and either 2-wire or 4-wire mode for RS-485 and supports full or halfduplex data transmission at speeds up to 1.25 Mb/s.

Total Number of Ports:2
Number of SC Ports:1

Media & Performance
Media Type Supported:Optical Fiber
Fiber Mode Supported:Single-mode
Maximum Distance Supported:12.43 Mile

Physical Characteristics
Form Factor:Internal

Additional Information:
  • Remote Firmware Upgrade

Fiber Optic Connector Specs:

  • Min TX PWR: -19.0 dBm
  • Max TX PWR: -14.0 dBm
  • RX Sensitivity: -30.0 dBm
  • Max In PWR: -14.0 dBm
  • Link Budget: 11.0 dB


  • SW1: 130 ohm resistor Rx
  • SW2: 130 ohm resistor Tx
  • SW3: 1k ohm "pull-down"
  • SW4: 1k ohm "pull-up"
  • SW5: 2-wire / 4-wire
  • SW6: RS-485 / RS-422

Point System Chassis

Certifications & Standards:
  • EIA/TIA RS-422
  • EIA/TIA RS-485


  • UL Listed
  • C-UL Listed (Canada) CISPR22/EN55022
  • EN55024
  • EN60950 Class A
  • FCC Class A
  • CE Mark
  • UL 1950

Limited Warranty:Lifetime

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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.

Special Order Item

This item ships directly from the manufacturer and is not stocked in our warehouse. If stock is available at the manufacturer, the item will ship directly to you, usually within 7 - 15 business days.

Once the order has been sent to the manufacturer it can no longer be canceled.

If payment is made via credit card it will be charged before the order is sent to the manufacturer.

You must contact the manufacturer directly regarding returns and defective items.

We will contact you by email if the item is sold out or backordered (and we were unable to update the site before you placed the order) or if the item will be delayed longer than expected.

We have no control over the speed of the manufacturer's order processing, or whether they will honor your request to ship the item by any particular method.

  • UPC: 648177012374 
  • Mfr's Part #: CRS4F3214-100