Extron electronic VLM 2000 - Manual (Page 26)

Operation and Features, cont’d
VoiceLift ™ Microphone • Operation and Features 2-16
PRELIMINAR
Y
a
Raceway knockouts — This combination knockout accommodates two sizes
of raceways 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”
(13.5mm)
3/4”
(19.1mm)
7/8”
(22.2mm)
1 29/32”
(48mm)
21/32”
(16.7mm)
3/4”
(19.1mm)
Examples of raceways that can be used with the receiver
b
Conduit knockouts — These circular knockouts are located in the back plate
to accommodate an electrical conduit if needed. (The unit is delivered with
one of these knockouts removed; the other can be removed if desired.)
c
Raised arrow — To attach the dome to the housing, place the dome onto the
housing with the arrow etched on the dome’s tab aligned with the raised
arrow on the housing rim.
d
Raised dot — To secure the dome in place on 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,” below.)
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’s connections (such as adding a
secondary receiver or an auxiliary input device) or to the DIP switch settings. To
make these changes, you must detach the dome from the housing to access the base
plate. Follow these steps to remove, reconfigure, and reattach the receiver dome:
1. Pull any new cables to the receiver’s 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
arrow on the tab aligns with the
raised dot on the housing rim, and
the dome snaps into place.
Twist to Lock
Arrow
Dot