Agilent Technologies 6890 Series Service Manual page 684

RS-232
RS-232 Standard wiring
Transmitters
Receivers
Jun 2001
External Connectors, 6890A and 6890 Plus
9
5
6
1
5 9
6
1
3 TxD
7 RTS
4 DTR
2 RxD
8 CTS
6 DSR
1 DCD
5 GND
Electrical
Agilent 6890 Gas Chromatograph Service Manual
JP1 (Host/Modem), JP2 (Sampler)
RS-232
Pin Function
1 DCD INPUT
2 RxD
3 TxD OUTPUT
4 DTR OUTPUT
5 GND
6 DSR INPUT
7 RTS
8 CTS INPUT
9 unused
(No Connect)
RS-232 Loop back wiring
1
2
3
4
5
6
7
8
9
1210
RS-232
In/Out
INPUT
OUTPUT
INPUT
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