INNOVATIVE ENGINEERING AND QUALITY MANUFACTURING OF ELECTRONIC SWITCHING AND CONTROL PRODUCTS
244 Bergen Boulevard, West Paterson, NJ 07424 Tel 973-785-4347 Fax 973-785-3318 E-Mail [email protected]
AUDIO PRODUCT GROUP
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ML-500
OPERATION and INSTALLATION
Ideal for smaller hotels and conference centers with
more stringent budget restraints, the ML-500 strikes a
good balance in the basic requirements of microphone and
music control and the more elaborate features found in
our larger combining systems.
The system features in-room control plates to operate
microphone (on or off), background music (on or off), a
combine switch that can select one of two tielines or local,
and a volume control for the mic and music audio levels.
Efficient and fool proof installation is assured. The in-room,
3-gang wallplates have a 7-wire cable that connects via a
pluggable screw connector to the main control unit, and
power for the main unit is provided by a PM-2 power
supply.
System operation is easily understood and can be con-
trolled by the staff.
To combine two rooms, place each room’s combining
switch to Tieline A. The rooms are now mixed. For
background music set the music volume control on each
room's wallplate to the same value, and select "music on"
in both rooms. Music will be heard in both rooms equally
loud. The other two rooms could be combined by placing
each room combining switch to Tieline B.
If microphone operation is desired, the rooms could be
mixed as above, the microphone switch turned on in all
mixed rooms (two in this example), and then set the vol-
ume control equally in both rooms, for a the desired listen-
ing level.
If none of the rooms are combined, then each room’s
combining switch must be set on local. This allows
full control of each room’s audio from the wallplate.
All mixer inputs as well as the music input are elec-
tronically balanced. All audio outputs are balanced,
600 ohm, transformer-coupled outputs insuring
trouble-free installation.
There are two busses: Line A and Line B. Any
wallplate that selects either of these busses will have
its associated audio summed with any other wallplate
that selects the same line. Since this is a four-room
system (or less), only two busses are required to mix
rooms in any conceivable fashion.
THE ML-500 ROOM AUDIO
COMBINING SYSTEM
