Connect Tech JB2 Manual de usuario Pagina 23

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Xtreme/104 Opto User’s Manual, Connect Tech Inc.
23 Revision 0.05
RS-422/485 Cable Wiring Examples
Figure 12: RS-422/485 wiring diagram (4 wire)
RTS +
RTS -
CTS +
CTS -
TxD +
TxD -
RxD +
RxD -
RxD +
TxD +
RxD -
TxD -
RTS -
CTS -
RTS +
CTS +
SR
SR
Xtreme/104 Opto adapter
RS-485/422 peripheral
3
4
2
5
6
9
7
8
1
Figure 13: RS-422/485 wiring diagram (2 wire)
RTS +
RTS -
CTS +
CTS -
TxD +
TxD -
RxD +
RxD -
RxD +
TxD +
RxD -
TxD -
RTS -
CTS -
RTS +
CTS +
SR SR
Xtreme/104 Opto adapter
RS-485/422 peripheral
3
1
4
2
5
6
9
7
8
Notes:
The RS-422/485 electrical interface consists of a differential signaling scheme. You should always connect
the signals with twisted pairs.
Signal reference must be connected.
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