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Connections to a Music Source
Power Supply Connections
Rotary Control Functions
IMPORTANT NOTE: When using the TAMB2 in ground start trunk mode with a music source that uses a 3-prong
grounded plug, it may be necessary to use WMT1A transformers to isolate the music sourcesʼ outputs from the TAMB2ʼs
music inputs. The music sourceʼs signal ground, which may be connected to the the AC line ground, could create an elec-
trical short with the connection from the TAMB2ʼs G/S terminal to the PBX ground (which is typically the AC ground for the
PBX) causing the TAMB2 not to function.
AUDIO OUT
L
R
MUSIC SOURCE
24VDC
150mA
24VDC
150mA
or greater
(user supplied)
The TAMB2ʼs Music Input will combine a stereo signal into mono or a mono source can be connected to either of the two
RCA jacks. The MUSIC control is used to set the level of the music source when playing through the paging system. Set
the level of the page using the amplifierʼs level control, then use the TAMB2 music control to set the background music level.
All operational modes of the TAMB2 require the connection of a user-
supplied 24V DC power supply. The connection polarity is marked on the
unit. The supply input is polarity-protected so that reversed polarity will
not damage the unit, but it will not operate until the condition is corrected.
When using multiple TAMB2ʼs in an installation, it may be more con-
venient to use a single, user-supplied power supply and wire the
power terminals of the multiple units together. When doing this, make
sure the power supply is 24V DC and can supply 0.15A x the units
being powered.
PAGING TIME
This control is used to set the maximum paging time within the Paging Time Range
set by DIP switches 8 & 9. MIN Time is the lowest time of the selected range, MAX
Time is the longest time. The control is linear and the “tick” marks represent 5 or 10
second (approx.) intervals, depending on range set, to make setting a specific time
simple. The Paging Timer can be inhibited.
VOX DELAY
This control sets the period of silence that must elapse for the unit to determine that
paging activity has likely ended. The “tick” marks represent 1-second (approx.)
intervals. This timer can be inhibited.
TONE
This control sets the level of the audible tone that indicates that the paging
connection has been established. The tone cannot be inhibited, but the volume can
be turned down so it cannot be heard.
MUSIC
This control sets the level of an external audio source feeding the paging amplifier
when no page is active
.