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4.2.5. RS-232C communication wiring
This product performs automatic measurement when connected with a PC via the serial communication
(RS232C).
Refer to the operating instructions software guide for details.
Use a cross cable when connecting with a PC (232C Null Modem).
Serial communication specifications
Caption
ANSI/EIA-232-E
Pin No.
１
２
３
４
５
６
７
８
９
Cross connection
DCD
1
RxD
2
TxD
3
DTR
4
SG
5
DSR
6
RTS
7
CTS
8
RI
9
Signal name
DCD
Data Carrier Detect
RxD
Recive Data
TxD
Transmit Data
DTR
Data Terminal Ready
SG
Signal Ground
DSR
Date Set Ready
RTS
Request To Send
CTS
Clear To Send
RI
Ring Indicator
Descriptions
1
DCD
2
RxD
3
TxD
4
DTR
5
SG
6
DSR
7
RTS
8
CTS
9
RI
13
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