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MANUAL and HORN BUTTONS
The front panel of the LCS770 contains two pushbuttons that operate the Manual
function and the Air Horn.
Manual – When the selector switch is in the
Wail, Yelp or Phaser positions, pressing the
MAN button cycles through to a generally
quicker changing tone. (See table on page
12). These quicker tones are used at
intersections and very highly congested
areas. Pressing the button once changes to
the next faster tone and pressing again
changes the tone back to original tone. With
the selector switch in the Manual, Alert, or
Hands Free position this switch provides a
manually activated Wail siren tone while the
button is being held. This is used to
momentarily alert motorists or in low noise
areas.
Optional operation includes replacement of the Phaser tone with Two-Tone
(HI/LO) or disabling the Phaser tone entirely. These options are selected during
installation and may be governed by State and/or Local laws.
With Rotary Switch
in this Position:
Pressing the MANUAL Push-Button Switch
Does This:
PHASER Toggles the Output to TWO-TONE
YELP Toggles the Output to PHASER
WAIL Toggles the Output to YELP
HF (Hands Free) Creates a manual WAIL tone while button is being
held that sweeps down when the button is released.
MAN (Manual) Creates a manual WAIL tone while button is being
held that sweeps down when the button is released.
ALERT Creates a manual WAIL tone while button is being
held that stops immediately when the button is
released.
(NOTE: PHASER and TWO-TONE may be optionally swapped or disabled via
program jumpers. See the section on page 4 under INSTALLER-SELECTABLE
OPTIONS.)
Air Horn – Pressing this button provides a simulated
air-horn tone. This can be used to either
replace, or to supplement the normal
vehicle horn and is useful at intersections
or in high noise areas. This tone will
override all other siren tones.
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General