Galls Street Thunder ST280 Installation And Operating Instructions Manual - Page 14
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MANUAL / HORN MOMENTARY ROCKER SWITCH
The front panel of the ST280 contains a momentary rocker switch that operates the
Manual function when the left side is depressed and the Air Horn when the right
side is depressed.
Manual – Pressing the left side of this momentary rocker
switch provides a generally quicker changing tone when
the selector switch is in the Wail, Yelp or Thunder
positions. (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, PA 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 Thunder tone with Two-Tone or
disabling the Thunder tone entirely. These options are selected during installation
and may be governed by State or Local laws.
With Rotary Switch
in this Position:
THUNDER
YELP
WAIL
HF (Hands Free)
MAN (Manual)
PA
(NOTE: THUNDER 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 the right side of this momentary rocker switch provides a
simulated air-horn tone while pressed. 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.
Pressing the MANUAL Rocker Switch
Does This:
Toggles the Output to TWO-TONE
Toggles the Output to THUNDER
Toggles the Output to YELP
Creates a manual WAIL tone while button is being
held that sweeps down when the button is released.
Creates a manual WAIL tone while button is being
held that sweeps down when the button is released.
Creates a manual WAIL tone while button is being
held that stops immediately when the button is
released.
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