IEI Integration AFL-08B-N270 v2.20 - Manual (Page 32)

AFL-08B-N270 User Manual
Page 32
Figure 2-5: Clear CMOS Jumper
2.5.4 COM Port Pin 9 Select
Jumper Label: JP8 and JP10
Jumper Settings: See Table 2-4
Jumper Location: See Figure 2-6
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
2-4 .
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 2-4: COM1 Pin 9 Setting Jumper Settings