2.2.4 GT11/GT12
24 V/RS232C type
Pin name
Name
Signal direction
Product No.
+
+24 V
-
AIGT2030B
AIGT2030H
AIGT2130B
AIGT2130H
AIG12MQ02D
AIG12MQ03D
AIG12MQ12D
AIG12MQ13D
AIG12GQ02D
AIG12GQ03D
AIG12GQ12D
AIG12GQ13D
−
0 V
-
FG
Functional ground
-
SD
Send data
GT
→
External device
RD
Receive data
GT
←
External device
RS
Request to send
GT
→
External device
CS
Clear to send
GT
←
External device
SG Signal ground -
24 V/RS422(RS485) type
Pin name
Name
Signal direction
Product No.
+
+24 V
-
AIGT2032B
AIGT2032H
AIGT2132B
AIGT2132H
AIG12MQ04D
AIG12MQ05D
AIG12MQ14D
AIG12MQ15D
AIG12GQ04D
AIG12GQ05D
AIG12GQ14D
AIG12GQ15D
−
0 V
-
FG
Functional ground
-
+SD
Send data
GT
→
External device(+)
−
SD
Send data
GT
→
External device(
−
)
+RD
Receive data
GT
←
External device(+)
−
RD
Receive data
GT
←
External device(
−
)
E Terminal resistance -
Note: There is no RS and CS (control lines).
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