IEI Integration NANO-LX v1.10 - Manual (Page 98)

NANO-LX EPIC SBC
5.6.4 AT/ATX Power Mode Select Jumper
Jumper Label: JP4
Jumper Type: 2-pin header
Jumper Settings: See Table 5-5
Jumper Location: See Figure 5-4
The JP4 jumper block controls the connection to a power supply.
The CN5 connector is used to connect a chassis power On/Off button using an adapter
cable and is configured through the JP4 jumper. The CN5 connector has two operational
modes:
1. Using ATX power: CN5 connects to an externally implemented power switch, and
the JP4 jumper should be left open.
2. Using AT power: The pins on JP4 are shorted by a jumper cap. JP4 should be
shorted by default as the AMD® Southbridge is designed without the
consideration for a power button signal. The shorted JP4 provides a hardware
feedback to initiate the system. The power on/off function is then managed by the
AT power switch button.
JP4 Description
Short AT Mode (Default)
Open ATX Mode
Table 5-5: JP4 Jumper Settings
5.6.5 PC/104-Plus VIO Voltage Select Jumper
Jumper Label: JP5
Jumper Type: 3-pin header
Jumper Settings: See Table 5-6
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