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TRANSITION CRS4F3114-100 Point System RS422/485 Copper to Fiber Slide-In-Module Media Converter 1.25 Mbps 1 x serial - RS-422/485 - 9 pin D-Sub (DB-9) male 1 x network - SC single mode female x 2

  • 1.25 Mbps
  • 1 x serial - RS-422/485 - 9 pin D-Sub (DB-9) male
  • 1 x network - SC single mode female x 2
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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.

Learn more about the Transition Networks CRS4F3114-100




1310 nm
1 x serial - RS-422/485 - 9 pin D-Sub (DB-9) male
1 x network - SC single mode female x 2
Max Distance
20 km
Transfer Rate
1.25 Mbps
3.40" Height x 0.86" Width x 5" Depth


Report converter status to chassis management software

Local Fiber Lock status
Receive data activity on the copper linkLocal Switch settings

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

Compatibility: Point System Chassis

Compliant Standards: CE, FCC Class A certified, cUL, EN 60950, EN55022, UL 1950, EN55024, CISPR 22

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

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