Motorola ASTRO Digital Spectra Посібник з монтажу - Сторінка 18
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Remote A4, A5, A7,
and A9 Model Control
Head Installation
12
The recommended mounting surfaces for the control unit are under the
dashboard, on the transmission hump, or on the center console. Figure 10
shows an example of the A4, A5, and A7 control heads. Figure 12 shows
how the bracket, control head, and cables should be installed for the A9
model control head.
NOTE:
For Control Head Models A4, A5, and A7 only: To seal
the control head and meet U. S. MIL-STD-810D
environmental specifications, covers are supplied for
protection of the control head's rear connector pins.
These covers are in the bag that is fastened to the
remote control head's mounting trunnion.
If the VIP connector is not being used to connect options,
the VIP protective cover should be installed as shown in
Figure 11. If the microphone is connected to the front of
the control head, the MIC protective cover should be
installed as shown in Figure 11. Alternately, the
microphone can be connected to the rear connector in
place of the cover, and the control head will still be
environmentally sealed.
An adjustable trunnion, which allows a number of mounting positions, is
supplied for mounting the control unit. The installation must not interfere
with the operation of the vehicle or its accessories, nor disturb passenger
seating or leg room. The control head must be within convenient reach and
viewing of the user(s).
Although the trunnion can be mounted on a plastic dashboard, all four
mounting screws should penetrate the dashboard's supporting metal
frame. If that is not possible, use a metal backing plate (not supplied) to
strengthen the installation. Install the control unit as follows:
1. Use the control unit trunnion as a template to mark the mounting
holes; drill 5/32" holes. If mounting on a plastic surface, use a metal
backing plate.
2. Attach the trunnion bracket using all four 10–16" x 5/8" self-tapping
screws provided.
NOTE:
When the control unit is installed, it must not wobble or
feel "spongy" when you press the buttons. Use all four
mounting screws and be sure they are tightly screwed
into metal – either a dashboard support bracket or a
backing plate.
3. Temporarily install the control head (adjusting for proper viewing
angle) and fasten it to the trunnion with two wing screws. Test the
installation to be sure the unit does not wobble or feel "spongy" when
you press the buttons.
Care must be taken to shield the control head (front and back)
!
from a direct exposure of pressurized water. The pressurized
water from a hose, in most cases, is more severe than the
stated test and conditions in typical environments.
C a u t i o n