Hughes 9300 Series Installation Guide
System Power Requirements
There is one power connection on the IDU. This must be connected to a 12 or 24 VDC
power supply.
Power requirements and consumption are as follows:
Voltage Input Minimum
10 V
Voltage Input Maximum
31 V
Total Current for ODU and IDU (max.)
6 A
Required Fuse
>=10 A
Figure 8 – System Power Requirements
Fuse
The fuse is a 10 A, 5 mm by 20 mm cartridge. The installed part is from Littelfuse, part
number 0234010. To replace the fuse, turn the fuse holder anticlockwise with a flat head
screw driver and the holder will pop out.
Power Cable
The power cable uses an Amp 1-178288-3 connector, and the pinout is shown in
Figure 9.
Color Function
Red DC
+
White Ignition
Sense
Black DC
-
Figure 9 – Power Cable Pinout
The optional accessory car adapter power cable includes a car adapter plug with a
10 A fuse and the ignition sense wire is connected to the positive power wire in the plug.
Standard Cable Connections
In addition to the DC power connection, an ignition sense connection must be made.
This is done using the three-wire power cable. In the case of a vehicle installation, the
power source is typically the vehicle battery. Cables should be routed appropriately, and
cable ties and clamps should be used as required to ensure that vibration and/or rubbing
of the cables does not occur.
9
