YOKOGAWA WT210, User Manual, Page: 181 / 316

11-4
IM 760401-01E
Table of RS-232 Standard Signals and their JIS and CCITT Abbreviations
Pin No.
(25-pin connector)
1
7
2
3
4
5
6
20
22
8
21
23
24/15
17
14
16
19
13
12
Abbreviations
RS-232
AA(GND)
AB(GND)
BA(TXD)
BB(RXD)
CA(RTS)
CB(CTS)
CC(DSR)
CD(DTR)
CE(RI)
CF(DCD)
CG(-)
CH/CI(-)
DA/DB(TXC)
DD(RXC)
SBA(-)
SBB(-)
SCA(-)
SCB(-)
SCF(-)
101
102
103
104
105
106
107
108/2
125
109
110
111
113/114
115
118
119
120
121
122
Protective ground
Signal ground
Transmitted data
Received data
Request to send
Clear to send
Data set ready
Data terminal ready
Ring indicator
Data channel received carrier detect
Data signal quality detect
Data signal rate select
Transmitter signal element timing
Receiver signal element timing
Secondary transmitted data
Secondary received data
Secondary request to send
Secondary clear to send
Secondary received carrier detect
Circles indicate pins used for the serial interface of this instrument
Name
CCITT
JIS
FG
SG
SD
RD
RS
CS
DR
ER
CI
CD
SQD
SRS
ST1/ST2
RT
BSD
BRD
BRS
BCS
BCD
11.2 Connecting the Interface Cable