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6.6
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 19 and in
Table 10, resp. Table 11.
Figure 19: RS485 and RS232 Pinout
Table 10: Connection of RS485
Pin
Signal mark
1
D (+)
2
D (-)
3
GND
Table 11: Connection of RS232
Pin
Signal mark
3
GND
4
RXD
5
TXD
6
RTS
7
CTS
The serial interfaces are not electrically isolated from the router.
NOTE
Wieland Electric GmbH | BA001291 | 07/2022 (Rev. A)
Hardware Functionality
Description
In/Out
In/Out
Ground (common with RS232)
Description
Ground (common with RS485)
Received Data
Transmit Data
Request to Send
Clear to Send
22
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