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WG-7302
Page
25
Document Details
WG-7302 User’s Guide
7.7 Serial COM1 – COM6 Ports
4X RS232 and 2X232/422/485 serial ports are available on the WG-7302.
Description
Type
Signal
PIN
Signal
Type
Description
Serial
number
RS232 signal
I
RS_232_A_RX
1
2
RS_232_A_TX
O
RS232 signal
COM1
RS232 signal
I
RS_232_B_RX
3
4
RS_232_B_TX
O
RS232 signal
COM2
RS232 signal
I
RS_232_C_RX
5
6
RS_232_C_TX
O
RS232 signal
COM3
RS232 signal
I
RS_232_D_RX
7
8
RS_232_D_TX
O
RS232 signal
COM4
RS232 signal
I
RS_232_E_RX
9
10
RS_232_E_TX
O
RS232 signal
COM5
RS232 signal
I
RS_232_F_RX
11 12
RS_232_F_TX
O
RS232 signal
COM6
RS485/RS42
2 signal
I
RS485_E_D-
/RS422_E_TxD-
13 14
RS_
/RS42
O
RS485/RS422
signal
COM5
RS422 signal
I
RS422_E_RxD-
15 16
RS42
O
RS422 signal
COM5
RS485/RS42
2 signal
I
RS485_F_D-
/RS422_F_TxD-
17 18
RS_
/RS42
O
RS485/RS422
signal
COM6
RS422 signal
I
RS422_F_RxD-
19 20
RS42
O
RS422 signal
COM6
Ground
Ground
21 22
GND
Ground
Ground
The typical definition of the signals in the COM ports is as follows:
Signal
Description
TxD
Transmitted Data sends data to the communications link. The signal is set to the marking state (0V) on
hardware reset when the transmitter is empty or when loop mode operation is initiated.
RxD
Received Data, receives data from the communications link.
Note1:
COM_SEL : mode select,Connect jumper to select COM5
、
COM6 mode.
PIN
Signal
Serial number
1
2
RS232 mode
COM5
3
4
RS485 mode
5
6
RS422 mode
7
8
RS232 mode
COM6
9
10
RS485 mode
11
12
RS422 mode
Available cable kit:
COM
cable