ICR-2431
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
and in Table
, resp. Table
Figure 18: RS485 and RS232 Pinout
Pin
Signal mark
Description
1
D (+)
In/Out
2
D (-)
In/Out
3
GND
Ground (common with RS232)
Table 8: Connection of RS485
Pin
Signal mark
Description
3
GND
Ground (common with RS485)
4
RXD
Received Data
5
TXD
Transmit Data
6
RTS
Request to Send
7
CTS
Clear to Send
Table 9: Connection of RS232
The serial interfaces are not eletrically isolated from the router.
19
