Kontron EPIC/CE, User Manual

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19 Power Interface
Kontron User's Guide EPIC/CE 54
19 Power Interface
The EPIC/CE is available with two power interface connectors. The boards can be powered by an ATX
power connector or an AT power connector (+5V-only) version. The ATX-version has a 10 pin ATX
connector as recommended by the PC/104 Consortium. The AT version uses the 4-pin power connector
that also powers 3.5” hard disks.
19.1 Power Interface Connectors
19.1.1 ATX Connector Version
This power connector is available through Connector X7 (10 pins). To find the location of this connector
see Appendix E: Connector Layout.
The EPIC/CE re5V and +5V Standby. The +3.3V for the EPIC/CE’s circuitry is generated onboard.
The onboard gen3.3V is not connected to the PC/104-Plus bus.
Additionally, some peripherals such as LCD panel backlight inverters, disk drives, and PC/104 as well as
PC/104-Plus add-on cards may need more voltages (+12V, -12V, +3.3V). These voltages are not
generated onboard the EPIC/CE and need to be supplied, too, as soon as peripheral devices require these
voltages. We recommend that you use an ATX power supply with this type of EPIC/CE, even though not all
voltages are required. An adapter cable to connect a standard ATX power supply to this connector is
available from Kontron (KAB-ATX-20TO10, Part Number 96072-0000-00-0).
The following table shows the pin-out of the ATX connector.
Header Pin Signal Name Function Pin Signal Name Function
1 PS_ON (**) Power On 6 +5V_SB (*) 5V Standby
2 GND Ground 7 +5V (*) +5V
3 GND Ground 8 +5V (*) +5V
4 +12V (*) +12V 9 -12V (*) -12V
1
2
3
4
5
6
7
8
9
10
5 +3.3V (*)
+3.3V external
(PC/104-Plus)
10 GND Ground
Notes
: (*) To protect the external power lines of peripheral devices, make sure that:
-- the wires have the right diameter to withstand the maximum available current
-- the enclosure of the peripheral device fulfils the fire-protecting requirements of
-- IEC/EN 60950.
The current on these pins is limited to 6A/pin.
(**) As an exception to the ATX specification, the EPIC/CE starts by switching on the primary supply
voltage of the ATX power supply (auto start after power fail).