-24-
Specifications
Fuse Replacement
The fuse panel is accessible by
loosening the two screws in the
cover plate on the amplifier. All
high current light outputs are
protected with a 20A automotive
blade fuse. Refer to the diagram
to the right for proper fuse
location. The control head is
protected with a 5A automotive
blade fuse located under the amp
box cover.
The amp box cover must be
removed to access this fuse.
The fifth light output (S5)
is protected with a 2A in-
line fuse.
Input Voltage
10 - 16 VDC (negative ground)
Siren Input Current
8.0 Amps @ 13.6 VDC (single 100W speaker), 16 Amps @ 13.6 VDC (dual 100W
speakers)
Siren Standby Current
Less than 10 mA with ignition off
Audio Frequency
200Hz - 10 kHz + 3db
Siren Output Power
105 WATTS RMS MAX. (15.0 VDC - single 100W speaker), 210 WATTS RMS
MAX. (15.0 VDC - dual 100W speakers)
Siren Frequency
675Hz - 1633Hz
High Voltage Protection
16 - 18 VDC will cause siren output to temporarily cease, resume at normal
Short Circuit Current
50 AMPS (supply circuit must be capable of supplying this)
Operating Temperature
-15° F to +140°F
Siren Controls
5-illuminated push button switches (Hands Free, Wail, Yelp, Phaser, and Radio)
Momentary push button Horn and Manual/Toggle switch
Auxiliary input connection for remote Manual/Horn operation (jumper programmable
for positive or negative horn)
Park Kill input connection (jumper programmable for positive or negative activation)
Phaser (and Two-Tone) disable (jumper programmable)
Two-Tone activation swaps modes with Phaser (jumper programmable)
Diagnostic Indicators
Two LED indicators provide diagnostic feedback, one for each speaker
Light Controls
5 push-on/push-off buttons (1 programmable 8 sec. time delay)
4-position slide switch (Off, L1, L1 & L2, L1 & L2 & L3 & Wail)
Light Output Ratings
20A fuse on each of the 7 light outputs. (4 push buttons, 3 slide positions)
Siren Connections
(12-Pin Connector)
(Communications Con.)
Detachable, 12-pin, positive locking connector with pigtail leads for Amplifier
(2) Positive, (2) Negative, (2) Speaker, (2) Radio, Auxiliary, Park Kill
Telephone style communication cable between Control Head and Amplifier
Light Control
Connections
+12 - three position barrier style terminal block
L1, L2, L3 (Slide Switch) 3-position Eurostyle terminal block
S1, S2, S3, S4 (Push buttons) 4-position Eurostyle terminal block
S5 (Push button) flying lead
Size
Amplifier: 2-1/2” High, 7” Wide, 7-3/8” Deep (plus 3/4" flange on each side)
Control Head Face Plate: 3-5/16" High X 6-13/16" Wide X 11/16" Deep
Boxed Weight
ST300: 8.5 lbs.
