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120R
1K2
RS-485
120R
RS-232/RS-485
Adapter
3
RS-232
Remarks:
1. The RS485 serial communication is available only on the CAN executions
2. Use a 9-wire standard 1-to-1 (non-inverting) shielded cable, preferable with metallic or
metallized shells (casings)
3. On IDMx40 drive the electrical ground (GND) and the earth/shield are isolated
© Technosoft 2011
J4 - RS-232 / RS-485 Connector
- RS-485 Connection -
J4
485A+
1
2
1K2
3
GND
5
485B-
6
+5V
+5V
9
SW1
Figure 3.28. J4 – Serial RS-485 connection
48
232Tx
RS-232
485Tx
Transceiver
232Rx
485Rx
RS-485
Transceiver
485 / 232
OFF
ON
IDMx40
IDMx40-xxI
+3.3V
IDMx40 Technical Reference
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