User guide
VoiceLift System with PVS 405D • Features and Operation 23
a Conduit knockouts — These circular knockouts are scored into the back plate to
accommodate an electrical conduit, if needed. The unit is delivered with one of these
knockouts removed. The other knockout can be removed if desired.
b Raised arrow — To attach the dome to the housing, line up the raised arrow on
the housing rim with the arrow etched on the dome. Rotate the dome clockwise to
secure it (see Removing and Replacing the Receiver Dome).
c Raised dot — To secure the dome to the housing, turn the dome clockwise until the
arrow on its tab lines up with the raised dot on the housing rim (see Removing and
Replacing the Receiver Dome).
d Raceway knockouts — This combination knockout fits two sizes of raceways that
can be connected when the receiver is mounted on a wall or other hard surface. The
knockouts fit common types of raceways, such as the Wiremold
®
500/700 and 2400
series.
17/32 inch
(13.5 mm)
3/4 inch
(19.1 mm)
7/8 inch
(22.2 mm)
1 29/32 inch
(48 mm)
21/32 inch
(16.7 mm)
3/4 inch
(19.1 mm)
Figure 23. Examples of Raceways That Can Be Used with the Receiver
Removing and Replacing the Receiver Dome
After having installed and used the VoiceLift microphone for some period of time, you
may want to make changes to the receiver connections (such as adding an auxiliary input
device) or the DIP switch settings. To make these changes, you must detach the dome
from the housing to access the base plate.
To remove, reconfigure, and reattach the receiver dome:
1. Pull any new cables to the receiver location that will be connected to the receiver.
2. Grasp the receiver dome firmly and turn it counterclockwise until it stops.
3. Pull the dome away from the housing, being careful not to disconnect any of the
connectors.
4. Make any desired changes to the connections or DIP switch settings on the receiver
base panel.
5. Place the dome onto the housing, aligning the etched arrow on the dome tab with the
raised arrow on the rim of the housing.
6. Turn the dome clockwise until the dome snaps into place and the arrow on the
tab aligns with the raised dot on the housing rim (see figure 22 on page 22 and
figure 24 on the next page).