Vornado SC-550-10 General Description, Specifications, Siren Amplifier, Light Controls

SC-550-10 28 Volt Installation and Operating Instructions Page 3 of 12

GENERAL DESCRIPTION

The SC-550 Remote Siren Amplifier with integrated Lighting Control is a premium unit designed for single or dual 100W speaker use. A remote hand control is connected to the amplifier with a thin cable. A 6-position rotary switch controls the primary operating modes of Phaser, Yelp, Wail, Manual, Horn and Radio. A siren button and auxiliary siren input is provided for control of the output tone, depending on the rotary switch setting. An integral microphone provides PA function. The power switch is combined with the PA volume control. A hole is provided in the amplifier to adjust Radio volume. A 4-position progressive slide switch controls primary lighting and may automatically activate the siren. Non-progressive slide switch outputs provided for tailored light- ing. Four auxiliary output pushbuttons provide for controlling additional lighting or other devices. A latching siren cutout input is provided for connection to a door switch, etc. to disable the siren when exiting the vehicle. An 8-position DIP switch on the amplifier allows selection of various options: Two-Tone to replace Phaser, Phaser disable, Horn disable , short Manual, and Horn Ring Cycler 2 (HRC2). Auxiliary siren and cutout input activation polarity along with disabling automatic siren and slide switch reverse are additional options. The hand control is backlighted with LED's for night visibility. The siren amplifier utilizes short circuit, high voltage, and reverse polarity pro- tection systems for maximum service life over a wide temperature range. The slide switch and auxiliary outputs are fused individually.

	SPECIFICATIONS
		Siren Amplifier
Input Voltage	18 - 32 VDC (negative ground)
Input Current	4 AMPS (@28 VDC - single 100W speaker)
	8 AMPS (@28 VDC - dual 100W speakers)
Standby Current	Less than 150 ma
Audio Frequency	200Hz - 10 kHz + 3db
Audio Distortion	Less than 7% (@1 kHz - single 100W speaker)
Audio Output	40 watts (@28 VDC - single 100W speaker)
Audio Input	400 ohms + 10%
Output Power	105 WATTS RMS MAX. (30 VDC - single 100W speaker)
	180 WATTS RMS MAX. (30 VDC - dual 100W speakers)
Siren Frequency	700Hz - 1500Hz (Two-Tone and Horn = 435 & 585Hz)
Tones / Cycle Rates	Horn	Wail	Yelp	Phaser	Two-Tone
Cycle Rates	109 CPS	13 CPM	190 CPM	15 CPS	60 CPM
High Voltage Prot.	32 - 36 VDC will cause siren output to cease, resume at normal
Short Circuit Current	50 AMPS (supply circuit must be capable of supplying this)
Operating Temp.	-15° F to +140°F
Controls	6-position rotary mode switch (Phaser, Yelp, Wail, Manual, Horn and Radio).
	Momentary push-button Siren switch.
	PA volume with Power switch on Hand Control, Radio volume on Amplifier.
	Auxiliary input connection programmable for positive or negative activation.
	Cutout input connection programmable for positive or negative latching cutout opera-
	tion.
Connections	(2) Negative, (2) Speaker, (2) Radio, Cutout, Auxiliary Siren, (2) non-progressive slide
(10-Pin Conn.)	switch outputs (500mA Max. per output)
	Note: positive siren connection is through high current input
		Light Controls
Voltage	18 - 32 VDC (negative ground)
Controls	4-position progressive slide switch with automatic siren activation
	(4) auxiliary pushbuttons
High Current Input	(2) pressure terminals, 140 AMPS Max. not including siren input current
Slide Switch Outputs	(3) pressure terminals, 20 AMPS Max. per terminal
4 Auxiliary Outputs	(4) pressure terminals, 20 AMPS Max. per terminal
		General
Size	Hand Control: 2-3/4" Wide, 1" Deep, 6" High
	Amplifier: 7-1/2" Wide, 6-3/4" Deep, 2-1/8" High
Weight	5-1/2 LBS.

CP4945A 05/07/05