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.

Application: 20mA interface controls RS485 bus system  

Product 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 per EN 61000-6-2
  • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3
• 5 year guarantee

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

Declaration of Comformity