EPX-C414/Configuration
v1.0
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Page 47
7.11.5 JPDIO1 and JPDIO2 Digital I/O Power
The I/O connectors provide 5V or +3.3V to an I/O rack for miscellaneous
purposes through jumper configurations at JPDIO1 and JPDIO2. When JPDIO2 pins 2-3
are jumpered, +5V is provided at pin 49 of DIO1 and DIO2. If JPDIO2 pins 1-2 are
jumpered, then +3.3V is provided at pin 49 of DIO1 and DIO2. Always ensure current is
limited to a safe value (less than 400 mA) to avoid damaging the CPU board.
Layout and Pin Reference
7.11.6 JPBAT - Battery Enable
Enables or disables the battery.
To enable the battery, jump 2-1.
To disable the battery, jump 3-2 or remove the strap completely.
NOTE
The battery must be installed at BAT before the battery can be enabled.
Layout and Pin Reference
7.11.7 JP5VSB - 5V Standby Power Select
Shorts 5V and 5V_SB. Connect pins 1-2 when using AT power supply; connect pins 2-3
or Open when using ATX power supply. Pin out as oriented: 1-2-3.
Layout and Pin Reference
7.11.8 JP104P - PCI-104 Power Source Select
Configures power source for the PC/104-Plus (see “PC104P PC/104-Plus Bus” on
Jumper
LVDS setting
1-2
+5V provided at pin 49 of DIO1/DIO2 (default)
2-3
+3.3V provided at pin 49 of DIO1/DIO2
Open
No power at pin 49 of DIO1/DIO2
1
2
3
Jumper
RTC Battery Enable Setting
1-2
Normal operation
2-3
Resets time, date, and battery-backed RAM
3
2
1
Jumper
5V Standby Power Setting
1-2
5V IN to +5V SB (default)
2-3
+5V IN to N.C. (no connection)
1
2
3
