
8
3.4. Connection Plan
Vacuum
chamber
RS 485
or
RS 232
DPG 101
DPG 109 DPS 109
PC
DPS 101
Trans-
mitter
or 24V DC
Connection Plan HPT 100 (optional)
Sub-D socket arrangement on the transmitter casing
PIN Settings
Pin 1: n.c.
Pin 2: RS232, RxD
Pin 3: RS232, TxD
Pin 4: n.c.
Pin 5: gnd
Pin 6: VCC
Pin 7: RS485, D-
Pin 8: RS485, D+
Pin 9: n.c.
5 4 3 2 1
9 8 7 6
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