Code 3 Scorpion Siren - Manual (Page 7)

7
Figure 5 - Control
Operation
(refer to Figure 5)
SCROLL v / MANUAL Momentary, Push-button Switch -This switch provides two distinctly different
functions depending on the mode of the siren when the switch is pressed and how long the operator holds the
switch. In order to fully understand the function of this switch read the following description carefully.
Tapping the MANUAL button will cause the siren to scroll down one mode. When the MANUAL button is
pressed and held, the siren will produce the MANUAL tone. Under this condition, when the button is released
the siren tone will ramp down to it's lowest frequency and the siren will revert to it's previous mode. Also refer
to the description of the "INSTANT-OFF" function.
SCROLL ^ Momentary, Push-button Switch - Each time the SCROLL ^ button is pressed it causes the
siren to scroll up one tone. Starting from the OFF mode, pressing the SCROLL ^ button will cause the siren
to start producing the WAIL tone. Pressing the button again will cause the siren to switch to YELP mode.
Pressing the button again will cause the siren to switch to HyperYelp mode. Pressing the button a fourth time
will cause the siren to switch back to WAIL
mode. This process may be repeated as often
as desired.
AIR HORN Momentary, Push-button Switch -
Produces the Air Horn tone. If the siren is active in
any mode except Manual mode, it reverts to that
previous mode when the AIR HORN button is
released. If the siren is active in MANUAL mode
when the AIR HORN button is pushed, it reverts to
OFF when the AIR HORN button is released.
INSTANT OFF - The siren may be turned off from any mode by simultaneously pressing the SCROLL ^
arrow button and the SCROLL v arrow button. Also refer to the description of the PARK KILL feature.
RRB Slide Switch - The RRB slide switch, located between the AIRHORN button and the VOLUME control
is used to enable (right position) or disable (left position) the Radio Rebroadcast (RRB) function. When RRB
is enabled, all other siren functions except PA are disabled.
When the switch is to the right, the 2-way radio audio connected to the RRB input wires is routed through the
siren amplifier to the siren speaker. The audio level at the speaker is set by adjusting the front panel volume
control knob. Also refer to Maximum Radio Rebroadcast (RRB) Adjustment.
PUBLIC ADDRESS (PA) - The PA portion of the siren is activated each time the microphone PTT button is
pressed. While the PTT button is pressed, the PA function over-rides any active siren tone and routes the
PA audio through the siren speaker. When the PTT button is released, the siren will automatically switch
back to the siren tone (if any) that was active when the button was pressed.
!
WARNING!
IMPORTANT WARNINGS TO USERS OF SIRENS: "Wail" and "Yelp" tones are in some
cases (such as in the state of California) the only recognized siren tones for calling for
the right of way. Ancillary tones such as "Air Horn", "Hi-Lo", "Hyperyelp", and
"Hyperlo" in some cases do not provide as high a sound pressure level. It is
recommended that these tones be used in a secondary mode to alert motorists to the
presence of multiple emergency vehicles or to momentarily shift from the primary tone
as an indication of the imminent presence of an emergency vehicle.