RS-485/422 to E1 Converter

IT-E485-PC interface converter supports the conversion between E1 interface which accord with the ITU-T G.703 standard and RS-485/422 interface, it can receive synchronous data of 2.048Mbps from E1 network, and transmit the data to ROUTER or other devices.
The mode of interface is DCE, and it can be connected with DTE or DCE devices.


  • Convert RS-485/422 interface to E1 (2M unframed G.703) interface
  • Support line recovery clock, local clock and equipment clock
  • Support E1 port loop
  • E1 (G.703) interface support 120ohm (RJ-45) and 75ohm (BNC double coaxial)


E1 interface
Standard: Comply with ITU-T G.703
Output tingle displace: accord ITU-TG.735 advice
Input tingle limit: accord ITU-TG.823 advice
Output tingle: accord ITU-T G.823 advice
Frame format: unframed
Interface rate: 2.048Mbps±50ppm
CRC checkout: no
Port coding: HDB3
Port transmission: 2KM
Port protection: 1500W surge protection, 15KV ESD protection
Port connector: 120 Ohm (RJ-45) and 75 ohm (BNC double coaxial)
RS-485/422 port
Standards Compliance: EIA RS-485, RS-422
Connector: DB25 female
Signal: RS-485:485+, 485-, GND
RS-422: TXD+, TXD-, RXD+, RXD-, GND
Baud Rate: 0~115.2Kbps
Work mode: DCE
Synchronous serial, latency transmission
600W surge protection, 15KV ESD protection
Environment, Power and Dimension
Working temperature: -25 to 70°C
Storage temperature: -40 to 85°C
Humidity: Relative humidity 5% to 95%
Input power: 220VAC or -48VDC
Consumption: 2W
Power protection: From high voltage/short circuit
L×W×H: 227.4mm×146.3mm×42.7mm
Shell: Plastic
Weight: 260g
Warranty: 3 years
Approvals: FCC, CE, RoHS approvals


Product Usermanual

Product Datasheet

Intellisystem Technologies