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Isolated Converter RS-232 to RS-422/485

US Prices
CDN Prices

Privacy and Security Policy

General Product Information

The 485LDRC9 is an optically isolated RS-232 to RS-422/485 converter. RS-232 Signals interface through a convenient DB9F connector or through a terminal block. RS-422/485 signals and the power inputs connect to the terminal block. Built in send data control circuitry eliminates the need for external software to control handshake signals. Optically Isolated data lines, with 500W surge suppression, ensures that the connected equipment is protected even in the harshests environments. The converter operates on externally sourced 10 to 30 VDC power. The enclosure has a DIN rail mount that is designed to fit easily on a standard 35mm rail. The 495LDRC9 is ideal for your ctritical industrial communications needs.

Features and Details

  • Terminal Block Connectors for RS-232 and RS-422/485
  • Increase communication range up to 4,000 feet (1200m)
  • Multidrop to up to 32 nodes
  • Wide temperature range (-40° to 80°C)
  • Wide power range (10-30 VDC)
  • MODBUS compatible
  • DIN Rail mount
  • 2000 volts optical isolation; built-in RS-485 surge protection
  • UL Recognized
  • FCC Class A
  • CE


Power Range AC: 0 to 0 Temp Range: -40 to 80
Mounting / Packaging: DIN UL: Yes
Class 1 Division 2: No Modbus: Yes
Power Max AC: No Automatic Send Data Control: Yes
Power Range DC: 10 to 30 Power Source: External
RS-232: No RS-422: Yes
RS-485 2 Wire: Yes RS-485 4 Wire: Yes
TTL: No Current Loop: No
Multi-mode Fiber: No Single Mode Fiber: No
Isolation: Yes 3-Way Isolation: No
Brand: B&B Electronics    

Buy 485LDRC9 on-line:
USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1364
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027