See Product Details

B&B Electronics models 4WSD9OTB and 4WSD25OTB are top-of-the-line RS-232 to RS-422/485 converters. 2000V optical isolation protects your equipment in harsh electrical environments. Removable terminal blocks on the RS-422/485 side makes installation easy. Power is provided through a 10-48 VDC input on the terminal block. All of this in a space saving in-line package. The 4WSD9OTB uses a female DB9 for the RS-232 connection while the 4WSD25OTB female DB25.

· High Speed Communications - Data rates up to 115.2 Kbps

· Modbus Compatible – Can be used for industrial applications

· Extended Communications - Distances up to 4000 ft

· Removable Terminal Blocks - Easy RS-422/RS-485 connections.

· Switchable modes – RS-485 2-wire, RS-485 4-Wire, and RS-422

· Automatic RS-485 Driver Control - External software modifications are not required

· 2000 V Optical Isolation – Reliable in harsh electrical conditions