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Battery Powered Converter RS-232 to RS-422/485

US Prices
CDN Prices

Privacy and Security Policy

General Product Information

No Power Available? No Problem! Use This Battery Powered Converter If you have room for just one RS-232 to RS-485 converter in your toolbox, the 485BAT3 should be it. Powered by 2 AAA batteries (not included), you'll never look for an open outlet or worry about inadequate port power again.

Ultra low power circuitry gives impressive battery life, further improved by drawing any available power from the host RS-232 port. Terminal connections for a 12 VDC input are also provided for complete powering flexibility. Power Supply 485PS2 is well-matched to this unit. Two set-up switches provide flexibility in systems applications as well- use the 485BAT3 on any RS-485 or RS-422 system.

Automatic Send Data Control eliminates the need for any special software. A DB9 female connector on the RS-232 side allows easy connection to a laptop or other PC. Terminal blocks connect easily to any RS-422 or RS-485 device. Dimensions are 3.6 x 2.6 x 1.1 in (9 x 6.5 x 2.8 cm).

Features and Details

  • DB9 Female Connector on RS-232 Side
  • Terminal Block on RS-485 Side
  • Three Power Options
    • 2 AAA Batteries supply full load power up to seven hours
      • Draws as much power as possible from RS-232 Lines first
    • RS-232 Data and Handshake Lines
    • External 12 VDC Power Supply
  • Suppors RS-232 TD and RD
  • RS-485 2-Wire (Half Duplex) or 4-Wire (Full Duplex) Operation
  • FCC Class A
  • CE


Power Range AC: 0 to 0 Temp Range: 0 to 70
Mounting / Packaging: Panel UL: No
Class 1 Division 2: No Modbus: No
Automatic Send Data Control: Yes Power Range DC: 9 to 12
Power Source: Port, External Power Max AC: No
RS-232: No RS-422: No
RS-485 2 Wire: Yes RS-485 4 Wire: Yes
TTL: No Current Loop: No
Multi-mode Fiber: No Single Mode Fiber: No
Isolation: No 3-Way Isolation: No
Brand: B&B Electronics    

Buy 485BAT3 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