NorthStar Navigation GM1708 961XD - Manual (Page 22)

SECTION TWO - Installation
Page 12 961 INSTALLATION MANUAL Revision A
Installing the
processor
For the processor installation measurements and instructions, refer to the
full-size flush-mount templates, “961 Processor Mounting Template, top
view” (P/N GM1700) and the “961 Processor Mounting Template, front
view” (P/N GM 1701) included in the 961 shipping carton.
To properly install the processor, you must first install the mounting
bracket to the surface of the vessel, then attach the processor to the
bracket.
Processor installation tips
• check the dimensions of the processor mounting bracket; these
dimension are provided on the enclosed template.
• follow the recommended clearance around the sides and front of
the unit.
• install the processor in a spacious, well-ventilated area to minimize
heat-related problems.
• mount the processor on a hard, solid, vibration-free surface of at
least 3/4-inch thickness. If the surface is carpeted, make sure that
the carpet doesn’t block the bottom ventilation holes or interfere
with the mounting plate vibration/shock mounts.
• 10-foot power cable goes to 10-36 Volts DC.
Wiring the 961
The majority of installation problems are caused by shortcuts taken with
system cables. When installing the unit, be sure that you:
• assemble connectors carefully
• don’t make sharp bends
• leave service and drip loops
• tie-wrap all cables to keep them secure
• if cables are lengthened, seal all wiring splices
The 961 operates on DC power from a 10-volt minimum to a 40-volt
maximum connected by at least 16-gauge wire. The 10-foot power cable
supplied with your 961 should be long enough for most installations, but
if you must lengthen the power cable, you can extend it to a maximum of
25 feet without adversely affecting the 961’s operation. For lengths up to
15 feet, the power connections to the battery must use 16-gauge wire or
heavier. For lengths of 15 feet or more, use 14-gauge wire or heavier.
Regardless of the length of the cable, you should use a 20-amp external
fuse as an added safety precaution ((the 961 has an external fuse in its
standard 10-foot power cable). The external fuse protects the vessel wir-