SYSTEM INSTALLATION
When installing, leave S inches (about 13 centimeters) or more of clearance behind the back
panel of the unit. You will need that much room for dressing the cables and getting at the
rear panel p8ItS.
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Figure 6. Rear Panel of the DGPS 12 Channel Receiver
zr and Memory Backug
Your receiver requires a minimum of 10 Vdc and a maximum of 32 Vdc. It requires an
average of 320 milliamps at 15 Vdc (average: 4.8 watts; maximum: 6 watts).
An ON/OFF/REMOTE switch on the back panel determines whether the unit power is
controlled locally or remotely. To control the unit power remotely, you must have the power
switch set to the REMOTE position and be able to apply 5 Vdc to a relay switch in the unit.
Remote power is controlled through the DB 25P connector, pins 1 and 25. Refer to the
wiring diagram, Figure 8.
CMUTION
For relhrble operatibn, you must pmviae dc power to the Magnavox receiver within the 10 to 32
Vdc range. Never apply voltages outswe this range.
The Magnavox receiver power supply does provide over-voltage protection. In addition, an
intemal lithium battery gives you backup power protection for random access memory
(RAM) for up to tive years. Another safeguard is an intemal thermal circuit breaker
protecting the unit from electrical surges (you may have need to reset it; see "Resetting the
Solid State Fuse" under "Maintenance").
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