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1.2 RS-232C Communications
1.2.1 RS-232C Connection
The RS-232C interface is provided as a standard feature in the
instruments to support remote control of the instrument, as well as
data transfer to and from a PC. The instrument and the 9612 RS-
232C CABLE are connected as shown in the illustration. The 9612
cable has cross-connected wiring.
Pin No.
Circuit Desig-
nation
CCITT
EIA
Symbol
JIS
Symbol
Common
2 Receive Data Receive Data 104 BB RD RxD
3 Send Data Send Data 103 BA SD TxD
5
Signal ground or
common return
Signal Ground 102 AB SG GND
7 Request to send
Request to
Send
105 CA RS RTS
8 Clear to Send Clear to Send 106 CB CS CTS
RS-232C
(cross)
Memory HiLogger
PC
9612 RS-232C CABLE
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