Push-button conversion, Custom labeling, Warning – Code 3 MasterCom B Series User Manual
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Lift pin
out and
store for
further
use
Rotate pin
toward front of
switch
Grasp pin
at this end
Figure 3
Switch with
pin intact
Siren Mode Selector Slide Switch
The siren has two distinct modes, Hit-N-Go and Scroll. Set rear panel slide switch to the desired
mode by sliding left or right. See operation section for detailed opertion in each mode.
Push-Button Conversion
('L models only)
Switches A-F can be set up as momentary (only on
while pushed), or push-on/push-off. They can be
converted as follows:
1. Disconnect all connectors and wiring to unit.
Remove siren from the vehicle if it is installed.
2. Remove the screw holding the rear cover plate to the
siren tray.
3. Remove the (4) screws holding the bezel to the
extrusion.
4. Slide the front panel/tray assembly forward out of the
extrusion.
5. Grasp the rear edge of the Power Distribution Circuit
Board (on top), slide it back and lift it free from the (4)
standoff fasteners holding it to the lower circuit board. Caution: The circuit board is still attached.
See steps 6 & 7 below.
6. Note the orientation of the circuit board four-pin connector and remove.
7. Do the same with the lighting level switch four-pin connector.
8. See Figure 3 for information on converting the switch. Once converted the switch may be
converted back again if the toggle pin is not lost.
9. Re-assemble the siren in the reverse order. Note correct orientation of the four and three-pin
harness connectors.
Custom Labeling
Labels supplied with the L4 and L6 models should be selected and placed in the appropriate windows.
See fig 1 for front view of siren, for switches A-F window designations. The windows
can be accessed by removing the (4) screws holding the bezel to the siren chassis extrusion.
"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 an emergency
vehicle.
WARNING!
!