MODEL: R1M-J3

R1M-J3 SPECIFICATIONS

ES-5655 Rev.15 Page 3/9

https://www.m-system.co.jp/

EXTERNAL VIEW

RS-485

Connector

Power Terminals

Node Address

Setting Rotary SW

Configurator

Jack

RUN Indicator

LED

RS-232-C

9-pin Connector

ABBR.

PIN NO.

EXPLANATION OF FUNCTION

BA (SD)

2

Transmitted Data

BB (RD)

3

Received Data

AB (SG)

5

Signal Common

CB (CS)

7

Clear to Send

CA (RS)

8

Request to Send

1

Not Used.

4

DO NOT connect. Connecting may

6

cause malfunctions.

9

1

5

6

9

■ RS-232-C INTERFACE

MODBUS WIRING CONNECTION

R1M

T1

T2

T3

T4

R1M

T1

T2

T3

T4

T1

T2

T3

T4

R1M

RS-232-C

RS-485

*1. Internal terminating resistor is used when the device is at the end of a transmission line.

*2. Install shielded cables to all sections and ground them at single point.

FG

RS-485