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Volume Adjustment
Locate the VOL. UP and VOL. DOWN control buttons on the control head.
With the system on, activate the PTT (Push To Talk) feature on the
optional microphone. Press and release these buttons to adjust the
volume one increment. Continue to press and release the appropriate
volume control button until a satisfactory PA volume level is achieved
using a normal speaking voice. Until changed, this is now the default level.
Radio Repeat Volume Adjustment
The MPC03 allows the user to control Radio Repeat volume from the
control head. If this is desired, set the volume control on the vehicle’s two-
way radio to the normal listening level. Activate the system and press the
radio button (RAD) on the control head. As incoming transmissions are
received, use the VOL. UP and VOL. DOWN buttons to adjust the radio
repeat output levels. Until changed, this is now the default level.
Control Module Fuse
For ease of access, the control module fuse (5 Amp) is accessible from
the top of the case.
Push-Button and Slide Switch Descriptions
Stand-by (STBY)
- This button clears all siren operations and can be
programmed to, upon activation, place the system into either P/A, MAN or
HF mode
NOTE: The system can be powered down by pressing and
holding this button for 3 seconds. If system power is not
derrived from an ignition-controlled source, this procedure can
be used to power down the system.
Radio Repeat (RAD)
- When this button is pushed, any signal that is
received by the vehicle’s two-way radio will be simultaneously broadcast
over the vehicle’s loudspeaker (the two-way radio must be connected to
the control module). This function overrides any other siren functions.
Public Address (PA)
- This is a Stand-by mode. When this button is
pressed, public address functions are operational. Messages may be
broadcast over the vehicle’s loudspeaker when the microphone
(connected to the Microphone Port) is in use. The volume level of PA
transmissions is controlled by the volume buttons (see “Volume
Adjustments”). If the Momentary Siren button is pressed, a “ramp-up”
siren tone will be generated by your vehicle’s loudspeaker. This tone is
generated until the Momentary Siren button is released. The tone then
changes to a “ramp-down”. The Air Horn tone may be generated by
pressing the vehicle’s steering wheel horn button (if the vehicle’s horn has
been wired to the Serial Communication Network).
MAN (Manual Mode)
- This is a Stand-by mode. When Manual Mode is
active, pressing the Momentary Siren button generates a tone that rises in
pitch to a preset level. This tone is generated for as long as the
Momentary Siren button is pressed. The same tone may be generated by
pressing the vehicle’s steering wheel horn button (if the vehicle’s horn has
Labels shown for reference only. Do not install labels
until all functions have been assigned and wired.
Control Head
1
2
3
STAND
BY
RAD
PA
T3
MAN
HF
WAIL
YELP
VOL.
UP
VOL.
DOWN
9
(LOW
POWER)
MANUAL
(MOM.)
AIR
HORN
(MOM.)
SW4
SW5
SW6
SW7
SW8
(T/A)
been wired to a horn ring transfer relay). Please note that the microphone
will override the siren function.
Hands-Free (HF)
- When Hands-Free mode is active, the siren function of
the network are placed in a Stand-By state. Siren tones are activated by a
single tap on the Momentary Siren button or a single tap on the vehicle’s
steering wheel horn button (if the vehicle’s horn has been wired to a horn
ring transfer relay). This enables the vehicle operator to control siren
functions without having to remove their hands from the steering wheel.
The first tap produces a Wail tone (a steady, rise and fall sound). A second
tap produces a Yelp tone (a fast, rise and fall tone). A third tap produces a
Piercer tone (a very fast, rise and fall tone). The next tap returns the siren
to a Wail tone and the cycle repeats itself. Two quick, succesive taps will
stop the siren.
Wail
- When the WAIL button is pressed, a steady, rise and fall tone is
produced. Pressing the Momentary Siren button or the vehicle’s steering
wheel horn button (if the vehicle’s horn has been wired to the network),
changes the siren tone to a YELP pattern (a fast, rise and fall tone).
Pressing the button again causes the siren to return to the WAIL tone.
Please note that the microphone will override the siren function. The tone
can be silenced by pressing the STAND BY button. This button is enabled
by default. It can be disabled if the function is not required.
Yelp
- When the YELP button is pressed, a fast, rise and fall tone is
produced. Pressing the Momentary Siren button or the vehicle’s steering
wheel horn button (if the vehicle’s horn has been wired to the network),
changes the siren tone to a Piercer
TM
tone. Pressing the button again
causes the siren to return to the “Yelp” tone. Please note that the
microphone will override the siren function. The tone can be silenced by
pressing the STAND BY button. This button is enabled by default. It can
be disabled if the function is not required.
Tone 3 (T3)
- When the T3 button is pressed, an extremely fast, rise and
fall tone is produced. Pressing the Momentary Siren button or the vehicle’s
steering wheel horn button (if the vehicle’s horn has been wired to the
network), changes the siren tone to a simulated Air Horn tone for as long
as the button is pressed. Releasing the button causes the siren to return
to the “Piercer
TM
” tone. Please note that the microphone will override the
siren function. The tone can be silenced by pressing the STAND BY
button. This button is enabled by default. It can be disabled if the function
is not required.
Air Horn (AH)
- This button will broadcast the Air-Horn tone as long as the
button is pressed, over-riding other siren tones. This button is enabled by
default. It can be disabled if the function is not required.
Momentary Siren (MOM SIREN)
- The function of this button depends on
the currently active tone. Refer to the descriptions for each siren-related
button for further information.
Vol Up / Vol Down
- See “Volume Adjustment”
9 (Low Power)
- In the default configuration, this button is programmed as
the low power operation switch. Pressing once initiates low-intensity light
operation. When the low-power mode has been activated, the diagnostic
indicator lights up to inform the operator that the low-power operation
mode is active. Pressing control 9 a second time, returns the system to
normal, full power operation. This is also the Si-Test™ initiation button.
Refer to the Si-Test™ section for information.
Si-Test™ -
Si-Test™ is a diagnostic feature of the serial communication
network. When Si-Test™ is activated, the MPC03 polls each installed
network component and confirms it’s operating status. To initiate a Si-
Test™, press and hold control 9 for at least 3 seconds. As each
component is tested, it’s diagnostic indicator will turn on if there is no
problem detected, or flash if a failure has been detected. If enabled by the
factory or a factory authorized representative, a series of 3, separate
alarm tones will be heard whenever a failure has been detected.
NOTE:
Installed network speakers are tested by generating an ultra-high
frequency through each speaker. Although these tones are inaudible to
