
Operation
28
17200492_002_A5 - 04/2011 - © Oerlikon Leybold Vacuum
+ 5
V
390
Ω
150
Ω
390
Ω
X 5
(8)
(7)
TURBO
.
DRIVE
X5 (7)
X5 (8)
X5
(7)
X5 (8)
...
120
Ω
Master
X 5
(6)
(9)
TxD/RxD –
TxD/RxD +
150
TURBO
.
DRIVE
TURBO
.DRIVE
Fig.
3.4
Connection
of
the
RS
485
bus
For
longer
cable
runs:
Links
for
activation
of
the
bus
terminator
Bus
terminator
for
longer
cable
runs
+
3.3
V