4 rs-485 cable connection, One to one configuration, Rs-485 cable connection – Toshiba SX 2000 User Manual

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1.3 Computer link mode

1.3.4

RS-485 cable connection

Cable connection examples show as below.

• Below figure shows an example of cable connection using the RS-232C/RS-485

converter (ADP-6237B).

• Use shielded twisted-pair cable for data communication suited to RS-485

standard. The cable shield should be connected to single -point ground.

One to one configuration

Master

computer

RS-232C/RS-485 converter

(ADP-6237B)

S2T

connector

block

S2T, removable terminal block is provided for cable connection.

Short between RXA and TERM for termination at both the S2T and the ADP-

6237B.

If the master has RS-485 (or RS-422) interface and the S2T is connected to the

master directly, connect termination resistor 1/2 W - 120 Q between RXA and

RXB at the master end.

6F8C0926