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スイッチ CEL-MAR ADA-4044HのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。CEL-MAR ADA-4044H 16 ページ。 Rs-485 / rs-422

ADA-4044H

MASTER

Fig. 4. Star type connection of devices with 4-wires RS485 interface to main 4-wires RS485 bus. Device separation from main

4-wires bus, extending the main bus by a further segments of 1200m, signal amplification, possibility of connection

3.2.2. STAR TYPE CONNECTION FOR 2-WIRE RS485 BUS – CONFIGURATION OF 4-PORT

RS485-OUT

Using the ADA-4044H configured for operating with 4-port, 2-wire RS485 (the microswitch RS-485 PORT in position 2W), it's possible

to:

- connect up to 64 devices with 4-wire RS485 interface in 'star',

- extend the main bus by a further segments of 1200m,

- separate other segments of bus from main network – what increases the operational reliability,

- amplify the RS485 signal.

During the connecting, pay attention to the proper implementation of the connection according to the following drawings.

additional 64 devices.

RS485(4W)

connector

Rx+

Rx-

Tx+

Tx-

GND

RS485(4W)

connector

Rx+

Rx-

Tx+

Tx-

GND

RS485(4W)

connector

Rx+

Rx-

Tx+

Tx-

GND

SLAVE