Connect Tech COM Express Type 2 Carrier Board - User Manual
Revision 0.03
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Current Consumption information
The majority of the current consumption is from the COM Express module, the PCI-104 and PC104 Express cards.
Other sources of current consumption are USB, SATA HDD drives, etc.
The following table can be used to help estimate the total current consumption of you COM Express carrier solution.
When building up your COM Express solution you should use your vendor provided datasheets to help create an
more precise power estimate.
Module
Current (typical)
Power Rail
CCG0xx Carrier
200mA
+12V
COM Express
Module
1000-4000mA
+12V
mSATA Flash Drive
130-250mA
+3.3V
USB Ports
100mA (keyboard)
+5V
SATA HDD
500mA
+12V
700mA
+5V
LVDS Panel
230mA
+3.3V
LVDS Backlight
420mA
+5V
Ethernet
40mA
+12V
PC/104 Plus or
Express Card
See vendor documentation
+12V, +5V or +3.3V rail.
Power Supply Control
Function
Power Supply Control
Location
P8
Type
4 Position Connector, NOTE! Rev B units will feature
a JST B4B-XH-AM(LF)(SN)(P)
Pinout
Position
Description
1
No Connect, +5VSB in (Rev B)
2
PS_ON Output from Carrier
3
Power Button input to COM Ex
module
4
Ground
These signals can be used with +12V power supplies that provide Power Good and can utilize a Power Good signal.
Power Good is an open drain signal and is pulled up to +5V on the COM Express carrier.
