User's Manual

18
3.3.1 Install DM5 Microphone
Typical DM5 Microphone installation involves placement
of the microphone in its molded foam enclosure and
mounting it inside the upper compartment of the speaker
post, connecting it to the microphone/speaker cable wires
from the drive-thru audio system, and filling the empty
space behind the unit with acoustic foam (not provided). If
the DM5 is mounted in a small area, its molded foam
enclosure may need to be compressed in order to close the
compartment. Follow these instructions to install the
DM5 in a typical speaker post. Installation in the
microphone compartment of a menu board is similar to
installation in a speaker post.
 Open the speaker post and remove any
existing equipment, foam or debris. If
there
Speaker
Grill
Foam
windscreen
in front of
microphone
Microphone
unit
Cable
Hole
in shelf
Foam
Foam
Foam
is an existing microphone,
remove it and disconnect the
microphone cable from it.
 Remove the small portion of the
provided foam microphone enclosure,
resulting in the two pieces of foam
shown in Figure 17.
 Insert the DM5 Microphone cable
through the hole in the foam
enclosure, and place the microphone
into the hole as shown in Figure 17.
 Insert the removed piece of foam back
into the hole in the foam enclosure, to
fit snugly against the back of the
microphone, as shown in Figure 17.
 Using a serrated knife, trim the foam enclosure
so it is ¼ to ½ inch larger than the upper
speaker post compartment, vertically and
horizontally, for a compressed fit. Keep the foam
pieces to fill the compartment, if needed.
 Place the foam windscreen in front of the
microphone, positioning it so it will cover the
inside of the speaker grill as shown in Figure 18.
 Place the microphone, in its foam enclosure, into
the compartment, so the front of the microphone
windscreen is flush against the metal, centered
on the grill, as shown in Figure 18.
 Splice the audio system’s microphone cable
wires (new or existing) to the wires of the cable
extending from the back of the DM5, according
to the audio system wiring diagram. Solder the
connection, and then cover the splice with shrink
tubing or crimp caps.
 Pack acoustic foam (not provided) in the empty
space behind the DM5 Microphone and its foam
enclosure, filling the space.
Figure 16. DM5 Microphone
Figure 17. Placement of DM5 Microphone
and foam in the foam enclosure
Figure 18. Microphone unit in
typical speaker post installation