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Rear Panel Operations and Connections
TEL INPUT
– This is a balanced audio input that is designed to accept
signals from an analog telephone output. Due to the varied output
levels from different telephone systems we have provided a level
control that allows precise level adjustments.
NOTE:
The TEL INPUT automatically overrides all signals in the pre-
amplifier and broadcasts the page when an announcement is made
through the telephone system.
COM Z1/Z2/Z3/Z4 –
The X-7240-4 provides 4 independent output zones. The zones can be used
to send background music and paging to any of the 4 zones or all zones simeltaniously with the
ALL button. Individual volume control is provided for each zone. The zone audio signal is taken
after the pre-amplifier. All audio sources, mic or line will be braodcast in the selected zone.
Connect the zone outputs exactly the same as the main outputs using the common COM as the
negative – and the Z1/Z2/Z3/Z4 as the po. The X-7240-4 is a 240 watt amplifier. Never
connect a speaker load that exceeds 240 watts in total. (ALL OUTPUTS COMBINED)
CAUTION:
Each zone is capable of a maximum of 120 watts and a maximum of 240 watts all
zones combined. Never connect more than 120 watts to any single zone.
When using 70V speakers set the front panel zone volume to 5 or less. The number 6
position provides 100V at the ouptuts and should not be used with 70V speakers.
TRANSFORMER ISOLATION –
Many telephone systems need to be phyisically isolated from
the amplifier and can pass DC voltages from the phone system paging outputs. The X-7240-4
provides an internal transformer which blocks potentially harmful DC voltages and effectivly
isolates the X-7240-4 from the phone system which reduces noise.
MOH OUTPUTS: -
MOH is Music On Hold. The X-7240-4 provides a line level 600ohm
output and an 8ohm 1watt speaker level output. Carfully check the reccomended input
of the phone system to match the X-7240-4 MOH outputs. The 8ohm 1W output can be
used to power a speaker. This is usefull in lobbys and waiting rooms where the music
will be braodcast but the paging will not be braodcast. The MOH input is taken from the
AUX input jack and the MP3 player providing uniterupted music for phone systems and lobbys.
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