Serial Interfaces; Rs485 And Rs232 Pinout; Connection Of Rs485; Connection Of Rs232 - Advantech ICR-2441 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 11 and in Table 5, resp. Table 6.
Signal mark
Pin
D (+)
1
2 D (-)
3 GND
Signal mark
Pin
3 GND
4 RXD
TXD
5
6 RTS
7 CTS
The serial interfaces are not eletrically isolated from the router.
Figure 11: RS485 and RS232 Pinout
Description
In/Out
In/Out
Ground (common with RS232)
Table 5: Connection of RS485
Description
Ground (common with RS485)
Received Data
Transmit Data
Request to Send
Clear to Send
Table 6: Connection of RS232
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ICR-2441