IEI Integration IMB-Q354 v1.00 - Manual (Page 116)

IMB-Q354 uATX Motherboard
Page 94
5.5.3 COM Port Pin 9 Voltage Setting Jumpers
Jumper Label: J_COM_V2, J_COM_V3 and J_COM_V4
Jumper Type: 3-pin header
Jumper Settings: See Table 5-3
Jumper Location: See Figure 5-10
The COM Port Pin 9 Voltage Setting jumpers configure pin 9 on COM 2/COM 3/COM 4 as
either a +5V or +12V power source. The COM Port Pin 9 Voltage Setting jumpers
selection options are shown in Table 5-3.
J_COM_V2 Description
Short 1 – 2 COM 2 RI Pin use +5V Default
Short 2 – 3 COM 2 RI Pin use +12V
J_COM_V3 Description
Short 1 – 2 COM 3 RI Pin use +5V Default
Short 2 – 3 COM 3 RI Pin use +12V
J_COM_V4 Description
Short 1 – 2 COM 4 RI Pin use +5V Default
Short 2 – 3 COM 4 RI Pin use +12V
Table 5-4: COM Port Pin 9 Voltage Setting Jumper Settings
The COM Port Pin 9 Voltage Setting jumper locations are shown in Figure 5-10 below.