W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

RS422/RS485 <> 20mA interface, Industry

  • RS422/RS485 20mA interface, Industry

Serial interface - connect with galvanic isolation

The Interface connects devices equipped with an RS422 or RS485 interface to active or passive 20mA components The built-in galvanic isolation ensures uninterrupted transmission in industrial environments.

Properties

Interfaces:

  • 1x RS422/485
    • 9-pin Sub-D plug
    • RS422/485: 4-wire bus master
    • RS485: 2/4-wire bus systems
  • 1x 20mA
    • 9-pin Sub-D plug
    • Selectable active or passive
    • Alternate designations: Current loop, TTY, line current interface
  • Galvanic isolation between the ports
    • Isolation voltage 1kV DC

Management and Connectivity:

  • Active/Passive mode can be set individually for both loops
  • No re-configuration of transmission parameters required

Power supply:

  • External
    • 12V-24V AC/DC via plug-in screw terminal
    • Galvanically isolated power connection

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Technical data

Connections and displays:

  • Serial Port A:
    • RS422/RS485 interface
    • 9-pin SUB-D adapter, PC assignment
  • Serial Port B:
    • 20mA interface
    • 9-pin SUB-D adapter
  • Switching time:
    • approx. 10µs for changing from data sending to receiving for RS485 automatic control (can be modified on request)
  • Baud rate:
    • 0 to 19200 Baud
  • Data format:
    • any format
  • Supported signals:
    • RxD, TxD
  • Termination:
    • Connectable termination network for RS485 operation
  • Galvanic isolation:
    • Isolation voltage min. 1kV DC between all terminals
  • Power supply:
    • 12..24V DC/AC
  • Current consumption:
    • typ. 130mA @12V DC, 65mA @24V DC
  • Supply voltage connection:
    • Plug-in screw terminal, 5.08mm spacing
    • Labeled "L+" and "M"
  • Displays:
    • 1 LED Power
    • 1 LED Data

Housing and other data:

  • Housing:
    • Plastic housing for top hat rail installation
    • 105 x 22 x 75mm (L x W x H)
  • Weight:
    • approx. 100g
  • Ambient temperature:
    • Storage: -40 .. +70°C
    • Operating (non-adjacent installation): 0 .. +60°C
    • Operating (adjacent installation) 0 .. +50°C
  • Permissible relative humidity:
    • 5..95% RH (non-condensing)
  • Life expectancy:
    • > 25 years at 25°C ambient temperature
  • Scope of delivery:
    • RS422/RS485 <> 20mA interface, Industry
    • Please order power supplies separately as accessories

Accessories

  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 19.00€
    • Plug-in Power Supply, 24V / 750mA DC with Euro, US and UK plug
    • 11026
    • 34.00€
    • Power Supply for DIN rail mount, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 29.00€
  • Cable and Connector Accessories

    • DB9F connection cable with open cable ends, left angled, 1.5m
    • 11902
    • 16.00€
    • DB9F connection cable with open cable ends, right angled, 1.5m
    • 11903
    • 16.00€
    • 9-pol. SUB D socket with screwing terminal and shielded housing
    • 11905
    • 19.00€
  • Mechanical Accessories

    • IP wall mount housing, 180 x 130 x 175 mm
    • 11120
    • 49.00€
    • Mounting bracket for wall mounting
    • 58812
    • 9.98€
    • 19" DIN rail
    • 58813
    • 19.00€

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.