Dataprobe 8P-MAS 운영 매뉴얼 - 페이지 6

{카테고리_이름} Dataprobe 8P-MAS에 대한 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Dataprobe 8P-MAS 8 페이지. 8 position menu activated switch

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Model 8P-MAS

INSTALLATION

Master and Switched Ports

Connection to the Switched A-H ports is made using 25 pin D Subminiature connectors on the rear of

the unit. The following leads are supported for Asynchronous communications:

Pin #

Designation

Transmit Data

Receive Data

Request to Send

Clear to Send

Data Set Ready

Signal Ground

Data Carrier Detect

Data Terminal Ready

The eight switched ports A-H are wired DCE (output

data on pin 3,RD). The Master port is wired for as DTE.

To directly connect a terminal device to the Master

Port, a Null cable is required. Refer to Figure 4 below.

RTS / DTR Selection

Jumpers JP1 through JP8 allows selection of RTS or DTR as the control lead used in the Lead Control

mode. To access these jumpers, disconnect the power source and remove the top cover of the 8P-

CAS by loosening the two screws on the underside of the unit. The jumpers are located as shown

below on Figure 3.

DTR

RTS

Typical

Port A-H

2 TD

3 RD

4 RTS

5 CTS

6 DSR

8 DCD

DTR

7 SG

RTS

Mon.

Figure 2

System Diagram

Electronic

4 Way

Switch

Code

Switch

Mon.

Control

Figure 3

Component Location

Page 6

Master

Port