Manual
2 Installation
2.2 Electrical Connection
2.2.5 Wiring of the Interface
SIP ART DR24 6DR2410
C79000-G7476-C153-03
129
- RS 485 bus
Canbeinsertedinslot4
RS 232
END/END
SIPART
BUS
RS 485
RS 485
+150 R
Figure 2-40 Jumper settings SES module 6DR2803-8C at RS 485 bus
instrument 32
RS 485 bus ≤1000 m
SES
Remote system
instrument 1
instrument 2
to
Rxd/Txd-B
Rxd/Txd-A
9--pin bus plug for round cable C73451-A347-D39
8 Rxd/Txd-A
Note line termination:
The RS 485 bus must be terminated with its characte-
ristic impedance. To do this, the terminating resistor
in the ”last” bus user is switched by plugging the co-
ding bridge appropriately .
8 Rxd/Txd-A
8 Rxd/Txd-A
3 Rxd/Txd-B
3 Rxd/Txd-B
3 Rxd/Txd-B
SES
SES
Jumper setting RS 485
Jumper setting RS 485 + 150R
Figure 2-41 Wiring of RS 485 bus
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