IEI Integration AFL-W15A_17D-GM45 v3.00 - Manual (Page 29)

AFL-W15A/17D-GM45 Panel PC
Page 18
J3 Description
1-2 According to BIOS settings
3-4 RS-232
5-6 RS-422
7-8 RS-485
Table 2-5: COM3 RS-232/422/485 Setup
J4 Description
1-2, 4-5, 7-8, 10-11 RS-232
2-3, 5-6, 8-9, 11-12 RS-422/485
Table 2-6: COM3 RS-232/422/485 Setup
The pinouts for RS-232, RS-422 and RS-485 communication are shown below.
Pin RS-232 Desc. RS-422 Desc. RS-485 Desc.
1 DCD TX- D-
2 RX TX+ D+
3 TX
4 DTR
5 GND
6 DSR RX-
7 RTS RX+
8 CTS
9 RI
Table 2-7: COM3 Pinouts
2.5.4 COM3 422/485 Setup
Jumper Label: J6
Jumper Type: 6-pin header
Jumper Settings: See
5
Table 2-5 and
5
Table 2-6
Use this jumper to set RS-422 or RS-485 communication methods.