Serial Interfaces; Rs485 And Rs232 Pinout; Connection Of Rs485; Connection Of Rs232 - Advantech ICR-2431 User Manual

2.6 Serial Interfaces

The pins of RS232 and RS485 serial interfaces are physically connected to the 7-pin ter-
minal block panel socket located on the left panel. The pinout of this connector is described in
Figure 18 and in Table 8, resp. Table 9.
Pin Signal mark
1 D (+)
2 D (-)
3 GND
Pin Signal mark
3 GND
4 RXD
5 TXD
6 RTS
7 CTS
The serial interfaces are not eletrically isolated from the router.
Figure 18: RS485 and RS232 Pinout
Description
In/Out
In/Out
Ground (common with RS232)
Table 8: Connection of RS485
Description
Ground (common with RS485)
Received Data
Transmit Data
Request to Send
Clear to Send
Table 9: Connection of RS232
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ICR-2431