Specifications
The smallest hole that will
pass
one
power
or transducer
plug
is one
inch. After the hole is
drilled,
pass
the transducer connector
up
through
the hole
first,
then
pass
the
power
cable down
through
it.
After the cables have
been
routed,
till the hole with a
good
marine
sealing compound.
Offset the bracket to cover the
hole. Route the
power
cable
through
the
slot and break out one of the other slots in
the
bracket for the
transducer cable.
POWER
CONNECTIONS
The UltraNav
works from a
twelve-volt
battery system only.
For the
best
results,
attach the
power
cable
directly
to
the
battery.
You can
attach the
power
cable to an
accessory
or
power buss,
however
you
may
have
problems
with electrical
interference.
Therefore,
it's safer to
go
ahead and attach the
power
cable
directly
to the
battery.
lithe
cable
is
not
long enough, splice
#18
gauge
wire onto it.Attach the in-
line fuse holder to the red lead as close
to the
power
source as
pos-
sible. For
example,
if
you
have to
extend the
power
cable to the
battery
or
power
buss,
attach
one end of the fuse holder
directly
to the
battery
or
power
buss. This will
protect
both
the unit and the
power
cable
in
the event of a short.
The
power
cable has three
wires, red,
white,
and black. Red is the
positive
lead,
black is
negative
or
ground.
The white wire is used for
the NMEA interface. To use this
feature,
attach a
shielded,
twisted
pair
cable from the
autopilot
or
other marine
equipment's
NMEA interface
to the white wire on the
UltraNav's
power
cable. Solder the twisted
pair's ground
wire and
shield wire to the black wire on the NavGuide's
power
cable. Do
not connect the shield wire to the
autopilot.
See
your
autopilot's
manual for more instructions. If
you're
not
going
to use this
feature,
cut and
tape
the white wire to
prevent
a short.
Minimize electrical
noise
by routing
the
power
cable
away
from
other
possible
sources of
electrical interference. One of the
largest
noise
generators
is the
engine's
wiring
harness. For best
results,
keep
the
power
and transducer
cables
away
from the
engine wiring.
2
103
NOTCHES
1 7Q°
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