Serial Interfaces; Connection Of Rs485; Connection Of Rs232 - Advantech ICR-2432 Hardware Manual

2. Hardware Functionality

2.6 Serial Interfaces

The pins of RS232 and RS485 serial interfaces are physically connected to the 7-pin terminal block panel
socket located on the left panel. The pinout of this connector is described in Figure
Table 10.
Pin
1
2
3
Pin
3
4
5
6
7
The serial interfaces are not eletrically isolated from the router.
ICR-2432 Hardware Manual
Figure 19: RS485 and RS232 Pinout
Signal mark Description
D (+) In/Out
D (-) In/Out
GND Ground (common with RS232)
Table 9: Connection of RS485
Signal mark Description
GND Ground (common with RS485)
RXD Received Data
TXD Transmit Data
RTS Request to Send
CTS Clear to Send
Table 10: Connection of RS232
2.6 Serial Interfaces
19 and in Table 9, resp.
20