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2.2.1 Daisy-Chain Wiring Configuration, Continued
RS485 Data
To/From the
Transmitter
-
+
Power
PC Control
RS485 Input
12 Volts DC
-
+
Power
PC Control
12 Volts DC
-
+
Power
PC Control
12 Volts DC
Rev. B
Termination Off
2400 Baud
4800 Baud
3
8 ON
3
8 ON
9600 Baud
19200 Baud
3
8 ON
3
8 ON
RS485 Input/
RS485
Terminated
Uplink
ON
1 2
RS485 Data
Termination Off
2400 Baud
4800 Baud
3
8 ON
3
8 ON
9600 Baud
19200 Baud
3
8 ON
3
8 ON
RS485 Input
RS485 Input/
RS485
Terminated
Uplink
ON
1 2
RS485 Data
2400 Baud
4800 Baud
3
8 ON
3
8 ON
9600 Baud
19200 Baud
3
8 ON
3
8 ON
RS485 Input
RS485 Input/
RS485
Terminated
Uplink
ON
1 2
Figure 6: Daisy Chain Wiring Multiple HDCD8TP Units
First HDCD8TP in the daisy-chain
O/P 1
O/P 2
O/P 3
O/P 4
Intermediate HDCD8TP in the daisy-chain
O/P 1
O/P 2
O/P 3
O/P 4
Termination On
Last HDCD8TP in the daisy-chain
O/P 1
O/P 2
O/P 3
O/P 4
6
O/P 5
O/P 6
O/P 7
O/P 8
O/P 5
O/P 6
O/P 7
O/P 8
O/P 5
O/P 6
O/P 7
O/P 8
HAMU000876
12/29/04
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