Chapter 05

Multiple Display Control

Control multiple display devices connected to a PC simultaneously.

Cable Connection

RS232C Cable

Interface

RS232C (9 pins)

 

 

Pin

TxD (No.2), RxD (No.3), GND (No.5)

 

 

Bit rate

9600 bps

 

 

Data bits

8 bit

 

 

Parity

None

 

 

Stop bit

1 bit

 

 

Flow control

None

 

 

Maximum length

15 m (only shielded type)

 

 

•• Pin assignment

1 2 3 4 5

6 7 8 9

<Male type>

Pin Signal

1Detect data carrier

2Received data

3Transmitted data

4Prepare data terminal

5Signal ground

5 4 3 2 1

9 8 7 6

<Female type>

Pin Signal

6Prepare data set

7Send request

8Clear to send

9Ring indicator

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