Hardware Description; Power Supply Connectors - Digicom HSDPA User Manual

3G Modem USB Internal

1.2. HARDWARE DESCRIPTION

Antenna connector
SIM holder

1.2.1. Power supply connectors

3G Modem USB Internal can be powered at 5 VDC, 12 VDC through the
4 PIN Molex connector or at 24V through the Mini-Spox connector.
• 5/12V model
Standard 3G Modem USB Internal power is 12V (Molex 4PIN). An
hardware modification is necessary for the 5V operation (please
contact Digicom S.p.A.).
PC connectors for power supply are usually cabled as follows:
+12 VDC Yellow
Ground Black
Ground Black
+5 VDC Red
USB connector
Here below the cabling of the used USB connector.
3G Modem USB Internal can mount also USB connectors step 2.54mm.
1 VCC +5VDC
2 D- Data -
3 D+ Data +
4 GND Ground
1.2
Introduction
USB Connector
Mini-SPOX connector
24V Power supply
Molex connector
12 or 5V Power supply