User guide

AFL-4 Series-N270 User Manual
Page 56
Jumper Location:
See
Figure 4-9
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 4-6.
RS-232/485 Select Description
Short 1-2 RS-232 Default
Short 4-5 RS-232 Default
Short 7-8 RS-232 Default
Short 10-11 RS-232 Default
Short 2-3 RS-422/485
Short 5-6 RS-422/485
Short 8-9 RS-422/485
Short 11-12 RS-422/485
Table 4-6: COM3 RS-232/422/485 Serial Port Select Jumper Settings
The COM3 RS-232/422/485 Serial Port Select jumper location is shown in Figure 4-9.