IEI Integration AFL-4 series-N270 v2.20 - Manual (Page 53)

AFL-4 Series-N270 User Manual
Page 53
The COM3 RX Function Select jumper location is shown in Figure 4-7.
Figure 4-7: COM3 RX Function Select Jumper Location
4.9.5 COM2 RS-232/422/485 Serial Port Select Jumper
Jumper Label: JP9
Jumper Type: 8-pin header
Jumper Settings: See Table 4-5
Jumper Location: See Figure 4-8
The COM2 RS-232/422/485 Serial Port Select jumper sets the communication protocol
used by the second serial communications port (COM2) as RS-232, RS-422 or RS-485.
The COM2 RS-232/422/485 Serial Port Select settings are shown in Table 4-5.
Setting Description
Short 1-2 DET BIOS RS232/422/485
Short 3-4 RS-232
Short 5-6 RS-422