KBox A-103 – User Guide, Rev. 3.0
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11.1.8.
(X204) Serial Port COM 2 (RS422/RS485) configured as RS485 (2-Wire Mode) S,
half duplex
Refer to the subsections 4.4.8 “X204 - Serial Port COM 2 (Option)” and to 5.1.2 “Serial Port COM2 (X204) Configuration
for RS422 or RS485 via DIP Switches”, Table 1, Table 2 and Table 3.
Table 19: (X204) Serial Port COM 2 (RS422/RS485) configured as RS485 (2-Wire Mode) S, half duplex
Pin
Signal Name
9-pin D-SUB Connector (female)
1
Data-
2
NC
3
Data+
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
11.1.9.
(X204) Serial Port COM 2 (RS422/RS485) configured as RS485 (4-Wire Mode),
full duplex, (Bus-Master)
Refer to the subsections 4.4.8 “X204 - Serial Port COM 2” and to 5.1.2 “Serial Port COM2 (X204) Configuration for
RS422 or RS485 via DIP Switches”, Table 1, Table 2 and Table 3.
Table 20: (X204) Serial Port COM 2 (RS422/RS485) configured as RS485 (4-Wire Mode), full duplex, Bus-Master
Pin
Signal Name
9-pin D-SUB Connector (female)
1
TxD-
(Transmit Data-)
2
RxD+
(Receive Data+)
3
TxD+
(Transmit Data+)
4
RxD-
(Receive Data-)
5
GND
(Signal Ground)
6
NC
7
NC
8
NC
9
NC
