User guide

AFL-08B-N270 User Manual
Page 33
JP10 Description
Short 1-2 COM3 RI Pin use +12 V
Short 3-4 COM3 RI Pin use RI Default
Short 5-6 COM3 RI Pin use +5 V
Table 2-5: COM3 Pin 9 Setting Jumper Settings
The COM1 and COM3 Pin 9 Setting jumper locations are shown in Figure 2-6 below.
Figure 2-6: COM1 and COM3 Pin 9 Setting Jumper Locations
2.5.5 COM3 RX Function Select Jumper
Jumper Label: JP9
Jumper Type:
8-pin header
Jumper Settings:
See
Table 2-6
Jumper Location:
See
Figure 2-7
The COM3 RX Function Select jumper sets the communication protocol used by the
COM3 port as RS-232, RS-422 or RS-485. The settings are shown in
Table 2-6.