SMC Networks 1232 Series user manual J11 Auxiliary Power Connector, +12VDC

J11 Auxiliary Power Connector

One auxiliary connector is available on the SpacePC 1232 module. J11 is a 6x2 pin connector with 2.54-mm step used to power the module in alternative to the PC/104 bus.

J11

Auxiliary

Power

Figure 18. J11 Connector layout

Check pinout and functions on the following table.

Table 17. J11 Auxiliary Power Connector

Pin	Signal
1	GND
2	VDD (+5VDC)
3	N.C.
4	+12VDC
5	N.C.
6	-12VDC
7	GND
8	VDD (+5VDC)
9	N.C.
10	N.C.
11	+5VSB
12	ATX ON

Description

Ground

+5VDC signal

Not connected

+12VDC signal

Not connected

-12VDC signal

Ground

+5VDC signal

Not connected

Not connected

Always high (ATX only)

ATX Power on signal

The number and position of the pins that have to be connected depends on the Power Supply model. Refer to the following topics in order to perform the right connections.

AT Power Supply

¾Connect pin 1 and pin 7 to the ground signal of the AT Power Supply Unit.

¾Connect pin 2 and pin 8 to the +5VDC source on the AT Power Supply Unit.

¾Connect pin 4 to the +12VDC and pin 6 to the –12VDC sources on the AT Power Supply Unit only if requested by other boards connected to the PC/104 ISA bus (see the following note).

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