INFICON VGC401 Single-Channel Controller - Manual (Page 25)

tinb01e1-f (2011-07) VGC401.om
25
The RS232C interface allows for operating the VGC401
via a HOST or terminal. It can also be used for updating
the firmware (
→ 83).
Connect the serial interface to the RS232 con-
nector on the rear of the unit using your own,
screened (electromagnetic compatibility) cable.
DANGER
DANGER: protective low voltage
According to EN 61010, voltages ex-
ceeding 30 VAC or 60 VDC are haz-
ardous.
Only connect a protective low voltage
(SELV).
e.g. PC
VGC401
2 TXD RXD
3 RXD TXD
5 GND GND
Screening Screening
(Minimum configuration)
Pin assignment
of the female
9-pin D-Sub
appliance con-
nector: 1
5
6
9
Screening
Pin Signal Pin Signal
2
3
5 TXD
RXD
GND 1
4
7 not connected
not connected
not connected
6
8
9 DSR
CTS
GND Chassis = screening
3.6 RS232 Interface
Connector
Pin assignment
RS232