Document Reference No.: ES_000086

ES-R-2x01B-M RS-232 to RS-422/RS-485 Converters Manual

Version 1.0

Clearance No.: ES

©2010 - 2011 EasySYNC Ltd.

4

2 Specification

RS-232 to RS-422/RS-485 Converter (ES-R-2001B-M)

Converts RS-232 port to high speed RS-422 / RS-485 port

RS-232 port can be selected to DCE or DTE pin assignment

Data rate: 300 bps to 1M bps

RS-232 connector: One DB-9 female connector

RS-422 / RS-485 connector: One DB-9 male connector and one 5-pin terminal block

Auto transmit/receive control for 2-wire RS-485 half-duplex operation

Termination and bias resistors installed on-board and selectable by jumpers

RS-422 data signals : TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-

RS-485 data signals (full-duplex) : TX-, TX+, RX+, RX-, GND

RS-485 data signals (half-duplex) : Data-, Data+, GND

LEDs indicate TxD and RxD

Wide input power range : 9V DC to 48V DC

Opto-isolated RS-232 to RS-422/RS-485 Converter (ES-R-2101B-M)

Converts RS-232 port to high speed RS-422 / RS-485 port

RS-232 port can be selected to DCE or DTE pin assignment

RS-422/RS-485 port is optically isolated with 2000 Volt DC optical isolation

RS-422/RS-485 port is surge protected on all signal lines to withstand electrostatic discharge

and power surges up to 25KV ESD

Data rate: 300 bps to 1M bps

RS-232 connector: One DB-9 female connector

RS-422 / RS-485 connector: One DB-9 male connector and one 5-pin terminal block

Auto transmit/receive control for 2-wire RS-485 half-duplex operation

Termination and bias resistors installed on-board and selectable by jumpers

RS-422 data signals : TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-

RS-485 data signals (full-duplex) : TX-, TX+, RX+, RX-, GND

RS-485 data signals (half-duplex) : Data-, Data+, GND

LEDs indicate TxD and RxD

Wide input power range : 9V DC to 48V DC