Operating instructions

2-15
VoiceLift
™
Microphone • Operation and Features
PRELIMINARY
9
i
Dome LED — Located in the center of the receiver dome, this LED indicates
power, carrier detection, and relay status. See the table below.
LED color Indication
Off Power off
Green Carrier frequency detected (channel A or B)
Green and amber — ashing, alternating Relay closed or no carrier detected
Receiver housing and back plate
The receiver housing surrounds and protects the base plate and connectors. It
contains knockouts that can be removed to accommodate a raceway, if desired. The
metal back plate is attached to the housing, and contains two knockouts that can be
removed as necessary to accommodate conduits. The housing has tabs that insert
into slots in the dome; a 1/8 clockwise turn secures the housing to the dome.
2
1
4
3
VLR 102 receiver housing and metal back plate