IEI Integration AFL-xxA-N270-Series v2.20 - Manual (Page 51)

AFL-xxA-N270 Series Panel PC
Page 37
Figure 4-7: Clear CMOS Jumper
4.9.4 COM Port Pin 9 Select
Jumper Label: JP8 and JP10
Jumper Settings: See Table 4-4
Jumper Location: See Figure 4-8
Two jumpers (JP8 and JP10) configure pin 9 on COM1 and COM3 DB-9 connectors. Pin 9
on the COM1 and the COM3 DB-9 connectors can be set as the ring (RI) signal, +5 V or
+12 V. The COM1 and COM3 Pin 9 Setting jumper selection options are shown in Table
4-4 .
JP8 Description
Short 1-3 COM1 RI Pin use +12 V
Short 5-7 COM1 RI Pin use +5 V
Short 7-9 COM1 RI Pin use RI Default
Table 4-4: COM1 Pin 9 Setting Jumper Settings
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 4-5: COM3 Pin 9 Setting Jumper Settings