S&T Kontron KBox C-103-0, Руководство пользователя

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KBox C-103-CFL-x - User Guide, Rev. 1.0
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Table 41: (X114) Serial Interface COM 1 and COM2, configured as dual RS485
Pin Signal Name 9-pin D-SUB Connector (male)
1 TxD/RxD- (COM1 Data -)
2 TxD/RxD+ (COM1 Data+)
3
4
5 GND (Signal Ground)
6 TxD/RxD- (COM2 Data -)
7 TxD/RxD+ (COM2 Data+)
8
9
Table42: (X114) Serial Interface COM 1 and COM2, configured as dual RS422
Pin Signal Name 9-pin D-SUB Connector (male)
1 TxD- (COM1 Transmit Data-)
2 TxD+ (COM1 Transmit Data+)
3 RxD+ (COM1 Receive Data+)
4 RxD- (COM1 Receive Data-)
5 GND (Signal Ground)
6 TxD- (COM2 Transmit Data-)
7 TxD+ (COM2Transmit Data+)
8 RxD+ (COM2 Receive Data+)
9 RxD- (COM2 Receive Data-)
If RS485 is needed in Echo mode, the RS422 mode must be selected and the lines must be
connected according below picture.
If dual (RS422/RS485) mode is selected the second serial Port connector X205 is not usable.
Figure 96: RS485 Echo mode configuration
J7:DB9
2
SP338E
1
RS485 mode
RS485 line
J7:DB9
2
SP338E
1
RS422 mode
RS485 line
3
4
ECHO possible
NO ECHO