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11
Charging
the
battery
1.
With
the
handset
turned
off,
the
Car
kit
will
charge
the
battery
to
60%
in
approximately
1
hour.
The
charge
time
will
be
longer
if
the
handset
is
operational
during
charge
time.
2.
For
operator
convenience,
the
handset’s
backlight
will
remain
on
for
ease
of
viewing
during
low/no
‐
light
conditions.
NOTE!
Batteries
will
charge
within
the
temperature
window
of
‐
10
C
to
+40
C
(50
F
to
104
F).
If
the
battery
is
outside
the
temperature
window,
no
charge
current
will
be
supplied
to
the
battery.
Operating
Specifications
Input
voltage
range:
11V
dc
to
32V
dc
Operating
ambient:
‐
30C
to
+60
C
Optional
Extras
ATT7107A
–
Handset
with
Cradle
Part
#
ATT7107A
–
Privacy
Handset
with
Cradle
1.
To
use
the
Privacy
Handset,
plug
the
connector
on
the
end
of
the
coil
cord
into
the
corresponding
RJ45
receptacle
on
the
Junction
Box.
See
Diagram
6
above
2.
An
active
call
can
be
terminated
and
an
incoming
call
can
be
rejected
by
pressing
the
PTT
button
on
the
back
of
the
Privacy
handset
for
more
than
2
seconds.
3.
To
switch
from
an
active
call
with
the
Privacy
handset
to
hands
‐
free
operation,
place
the
Privacy
handset
into
its
cradle.
Audio
will
then
be
routed
to
the
speaker.
If
the
PTT
is
pressed
for
more
than
2
seconds,
it
will
terminate
the
call.