System Sensor S1224MC specifications Candela Selections, Horn Factory Default Setting, wirecircuit

Figure 2: Candela Selections

For strobe candela selection, adjust slide switch located on the rear of the product while watching the viewing win- dow on the side of the reflector.

Permissible Candela Settings:

		Candela	Operating Voltage
		Setting	12V	24V
		15	OK	OK
		15/75	OK	OK
		30		OK
	A0133-00	75		OK
Viewing Window		110		OK

NOTE: SpectrAlert selectable output strobes, set at 15 and 15/75cd, automatically work on both 12V and 24V power supplies.

NOTE: The strobe is not listed for 12V operating voltages when set to 30, 75 or 110 candelas. Use only those settings marked as OK in the chart above.

NOTE: The low volume setting of some tones must NOT be used for public mode applications when the device is powered from a 12- volt panel. Refer to the Sound Output Guide on the previous page.

Temp/Non-Temp ON=NON-Temporal, OFF=Temporal 3KHz/Electromechanical ON=3KHz, OFF=Electromechanical

WARNING

Check terminal polarity before wiring. For proper operation, make sure the correct wire polarity is applied to the unit.

Figure 3: Horn Factory Default Setting

The factory default setting is High, Temporal 3, and Electrome- chanical tone.

Figure 5: Horns and strobes powered in tandem

NOTE: Supply power must be continuous for proper operation.

TANDEM OPERATION

OFF

Low

Temporal

Electromech.

Factory

ON Default

High

Non-Temporal

3000Hz

DIP Switch

A0110-00

Base (rear)

HORN/STROBE COMBO

		Horn +
TO NEXT
	FACTORY		+ FROM:
DEVICE OR	INSTALLED
EOL	JUMPERS			FACP, MODULE
		Strobe +		OR PREVIOUS
	Strobe – Horn –		–	DEVICE

A0112-00

Horn selections using 3-position DIP switch on horn/ strobe (refer to Figure 3):

NOTE: When powered from a FWR supply, the horn will be mod- ulated (turned on and off) by 120Hz causing it to sound different than if powered by a DC supply.

High/Low Volume

ON=High Volume, OFF=Low Volume

System Operation – Non-Synchronized Devices: Figure 4a: Any combination of models powered by a

2-wire circuit:

(+)	HORN	HORN/STROBE		STROBE ONLY
	(+)	(+)		(+)
							TWO WIRE SYSTEM
						E	ANY MIX OF MODELS
						O
							WIRED FOR TANDEM
						L
							OPERATION
(–)	(–)		(–)		(–)

A0111-00

Figure 6: Any combination of models powered by a

4-wire circuit to provide independent horn and strobe op- eration (remove factory installed jumpers, see Figure 8)

NOTE: Strobes must be powered continuously for horn operation.

(+)		(+)		(+)
	H		H
	O		O		E
	R		R		O
	N		N		L
(–)		(–)		(–)
			C
			O
			M
			B
(+)			O
		(+)		(+)
	S		S
	T		T
					E
	R		R
					O
	O		O
					L
	B		B
(–)	E	(–)	E	(–)

System Operation – Synchronized Devices:

Figure 4b: Any combination of models powered by aA0113-00

2-wire circuit:

MDL

(+)	HORN	HORN/STROBE		STROBE ONLY
	(+)	(+)		(+)
							TWO WIRE SYSTEM
						E	ANY MIX OF MODELS
						O
							WIRED FOR TANDEM
						L
							OPERATION
(–)	(–)		(–)		(–)

SYNCHRONIZATION MODULE

A0111-00

D900-28-00 3 I56-1796-011R