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SECTION IX - TWO-TONE SYSTEMS
For Model 180K
REQUIRED EQUIPMENT
1. Control Unit- Any existing 180 system can be used.
No modifications or additional switches are needed.
2. Amplifiers- Two amplifiers, each housed in a separate
cabinet, are required.
3. Cables- A UMCO29T is needed for interconnecting the
two amplifiers. UMCO30K (4 foot or 15 foot long) is
needed for interconnecting both amplifiers with the control
unit.
UMCO29K normally supplied with control switches.
4. Siren Speakers- At least one speaker must be used with
each amplifier. Two speakers may be used as indicated by
dotted lines in drawing.
Note:
A speaker having one horn, but two driver units
(such as 200 watt speaker), is electrically the same as
two speakers.
AMPLIFIER INSTALLATION
1. Install first amplifier as indicated in drawing.
2. Set slide switch on bottom of amplifier chassis
to match power rating of speakers to be used.
3. Install amplifiers with 4 inches maximum
between cabinets.
PRELIMINARY CONNECTIONS
1. Interconnect AIR HORN wires from both 3-pin
amplifier connectors using the appropriate connector.
2. Interconnect ALARM wires from both amplifiers if
Intrusion Alarm (Section VIII) is desired. If not wanted
tape and do not use wire.
3. Connect one terminal (either one) of a siren speaker
to vehicle chassis (-). Repeat for all other speakers using
same terminal # of each speaker.
4. Connect the
BROWN
wire from each amplifier
connector to chassis (-).
5. If it is desired, wires may be cut in the UMC029T to
restrict the number of sounds available in the second
amplifier.
FINAL CONNECTIONS
See drawing.
IMPORTANT
: Keep
RED
amplifier primary wires equal
in length. Connect both to a length of 10ga wires.Connect
other end directly to battery (+) post or to an appropriate
power distribution terminal. Do not connect to ignition
switch or ignition - controlled circuit.
