IEI Integration AFL-08B-N270 v1.00 - Manual (Page 35)

AFL-08B-N270 User Manual
Page 35
COM3 TX Function Select Description
Short 1 – 3 RS-422 Default
Short 2 – 4 RS-422 Default
Short 3 – 5 RS-485
Short 4 – 6 RS-485
Table 2-7: COM3 TX Function Select Jumper Settings
The COM3 TX Function Select jumper location is shown in Figure 2-8 below.
Figure 2-8: COM3 TX Function Select Jumper Pinout Locations
2.5.7 COM3 RS-232/422/485 Serial Port Select Jumper
Jumper Label: JP6
Jumper Type:
12-pin header (four 3-pin headers combined)
Jumper Settings: See Table 2-8
Jumper Location: See Figure 2-9
The COM3 RS-232/422/485 Serial Port Select jumper sets the communication protocol
used by the second serial communications port (COM3) as RS-232, RS-422 or RS-485.
The COM3 RS-232/422/485 Serial Port Select settings are shown in Table 2-8.