System information

Power Supply

VSBC-6 Reference Manual Reference – 23

Power Supply

OWER

ONNECTORS

Main power is applied to the VSBC-6 through an EBX style 7-pin polarized connector (mating

connector Molex Housing 09-50-8073, Pins 08-52-0072). A 3-pin auxiliary power input

connector is also provided to supply –5V and –12V to the PC/104-Plus stack.

See page 17 for connector pinout and location information.

Warning! To prevent severe and possibly irreparable damage to the system, it is critical that

the power connectors be wired correctly. Make sure to use both +5VDC pins and

all three ground pins to prevent excess voltage drop.

Table 3: Main Power Connector Pinout

Signal

Name Description

1 +5VDC Power Input

2 Ground Digital Ground

3 Ground Digital Ground

4 +12VDC Power Input

5 +3.3VDC Power Input

6 Ground Digital Ground

7 +5VDC Power Input

Note! The +3.3VDC and +12VDC inputs on the main power connector are only required

for PC/104-Plus expansion modules that require these voltages. The AUI interface

on the Ethernet port also uses +12VDC.

Table 4: Auxiliary Power Connector Pinout

Signal

Name Description

1 –5VDC Power Input

2 Ground Digital Ground

3 –12VDC Power Input

Note! Auxiliary voltages are only required for PC/104-Plus expansion modules that

require these voltage.