IMP5212 Features
31
5
1
9
6
RS232-422
Figure 4.2-20 The Pins Sequence of RS232-422 Connector
Table 4.2-7 The Relationship of RS232-422 and Channel Values
Pin No.
Channel Value
Pin1
NC
Pin 2
RS422Tx-
Pin 3
Pin4
NC
Pin5
GND
Pin6
NC
Pin7
Pin8
RS422Rx-
Pin9
NC
The function of the RS232-422 interface is determined by a dip switch on
the control module, as shown in Figure 4.2-21:
Dip Switch
RS232-422
Figure 4.2-21 The Position of the Dip Switch for RS232-422
The interface is used as RS232 when the dip switch is set as this: the
former three bits are set to ON and the latter five bits are set to OFF, as
shown in Figure 4.2-22.
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