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485lpcor b&b logo

Half Wire Duplex Converter- RS-232 to RS-485

US Prices
CDN Prices

Privacy and Security Policy

General Product Information

The 485LPCOR is a port-powered unit that converts the TD and RD RS-232 lines to balanced half-duplex, two-wire RS-485 signals. B&B's Send Data Control circuit automatically enables the RS-485 driver when data is present on the RS-232 side. The unit is powered from the RS-232 data and handshake lines whether the lines are high or low. Control of the RS-485 driver is automatic at baud rates up to 115.2kbps baud.

An external power supply can be connected to two pins on the RS-485 connector if no handshake lines are available. The RS-232 side has a DB25 female connector and the RS-485 side has a DB25 male connector.

Features and Details

  • RS-232 to RS-485 2-Wire (Half Duples)
  • RS-232 Connector DB25 Female, RS-485 Connector DB25 Male
  • Supports RS-232 TD and RD
  • Powered from RS-232 Output Handshake Lines
  • Data Rates up to 115.2 kbps
  • FCC Class B
  • CE


Power Range AC: 0 to 0 Temp Range: 0 to 70
Mounting / Packaging: In Line UL: No
Class 1 Division 2: No Modbus: No
Automatic Send Data Control: Yes Power Range DC: 12 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: No
TTL: No Current Loop: No
Multi-mode Fiber: No Single Mode Fiber: No
Isolation: No 3-Way Isolation: No
Brand: B&B Electronics    

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