Connect Tech - COM Express Type-6 PMC/XMC Carrier Board - User Manual
Revision 0.03
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On-Board
“ATX” Power Supply
The
COM Express Type-6 PMC/XMC Carrier
provides takes the +6V to +36V input and generates all of
the on-board voltages rails needed for the COM Express modules and peripherals. This on-board power
supply is also has “ATX” functionality where it generates the PWR_OK signal to the COM Express
module upon for start-up and uses the SUS_S3# signal for shutdown. The main power rails can be
powered ON and OFF via the power button pins located on the system control header.
The voltages generated by the on-board supply are +12V, +5V, +3.3V, +1.8V, +1.5V, +5V-SB and +3.3V-
SB. Below is a listing of the current sourcing capabilities of the on-board power supplies.
Power Rail
Maximum Current
Sourcing Capability
+12V
10A
+5V
10A
+3.3V
10A
+1.8V
0.15A
+1.5V
5A
+5V-SB
1.2A
+3.3V-SB
0.15A
Startup and Shutdown Jumpering
Recommended default jumpering for properly powering ON and OFF the carrier should be as shown
below. No jumpers should be installed on jumper block J14, and a single jumper should be installed at J13.
