ZXC10 CBTS I2 Installation Manual
154
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RS485 connector
Figure 123 shows RS485 connector.
F
I G U R E
1 2 3
-
R S 4 8 5
C
O N N E C T O R
Table 21 illustrates RS485 signal definition.
T
A B L E
2 1
-
R S 4 8 5
S
I G N A L
D
E F I N I T I O N
End A
No.
Colour
Signal Definition Remark
6
White
O _RS485-RX
-
_EM
7
Blue
O _RS485-RX+_EM
First
twisted-pair
8
White
I _RS485-TX
-
_EM
9
Orange
I _RS485-TX
+
_EM
Second
twisted-pair
Note
:
Connect wires according to above definition. Insert two four-core cables into a
DE9 connector while using both RS232 and RS485 connectors.
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