IEI Technology AFL-W15A-N270, User Manual

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AFL-W19A/17D/W15A-N270 Panel PC
Page 22
The COM3 RX Function Select jumper sets the communication protocol used by the RX
serial communications port COM3 as RS-232, RS-422 or RS-485. The COM3 RX
Function Select jumper settings are shown in Table 2-8.
COM3 RX Function Select Description
Short 3-4 RS-232
Short 1-2, 5-6 RS-422
Short 1-2, 7-8 RS-485
Table 2-8: COM3 RX Function Select Jumper Settings
The COM3 RX Function Select jumper location is shown in Figure 2-11.
Figure 2-11: COM3 RX Function Select Jumper Location
2.5.7 COM3 TX Function Select Jumper
Jumper Label: JP11
Jumper Type:
6-pin header
Jumper Settings:
See Table 2-9
Jumper Location:
See Figure 2-12
The COM3 TX Function Select jumper configures the TX pin on COM3 serial port
connector as RS-422 as an RS-485. The COM3 TX Function Select jumper selection
options are shown in Table 2-9.