IEI Integration AFL-xxA-N270-Series v2.11 - Manual (Page 54)

AFL-xxA-N270 Series Panel PC
Page 40
4.9.5 COM3 RX Function Select Jumper
Jumper Label: JP9
Jumper Type: 8-pin header
Jumper Settings: See Table 4-8
Jumper Location: See Figure 4-9
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 4-8.
COM3 RX Function Select Description
Short 3-4 RS-232 Default
Short 1-2, 5-6 RS-422
Short 1-2, 7-8 RS-485
Table 4-8: COM3 RX Function Select Jumper Settings
The COM3 RX Function Select jumper location is shown in Figure 4-9.
Figure 4-9: COM3 RX Function Select Jumper Location