Installation Manual

Overview:
The ALSD2 is a high output very low current draw dual channel siren driver
designed to work with alarm panels with limited current capability.
Specifications:
• 6VDCor12VDCoperation.
Parallel or series speaker wiring
 103db@10ft.@6V-8Ohms
 105db@10ft.@6V-4Ohms
 106db@10ft.@12V-8Ohms
 111db@10ft.@12V-4Ohms
 Currentdrawrangefrom0.3ampto1.22ampbased
on speaker resistance and supply voltage.
• Two(2)channeloperation-steadyoryelp.
• Verylowcurrentdraw.
BoardDimensions(approximate):2.5” x1.9” x1.1”(63.5mmx48.3mmx27.9mm)
Installation Instructions:
1. MounttheALSD2indesiredlocation.
2. Connect4Ohmor8Ohmspeakerstoterminalsmarked[SPKR]
 (seesuggestedspeakerwiringdiagramsbelow).
3. Connect6VDCto12VDCfromoutputterminalsoncontrolpanelor
 otherdesiredpowersource(observingpolarity)to[GND]and[STY+]
 or[YLP+]onALSD2.
Note:Steadytoneoverridesyelptoneifbothchannelsaretriggeredsimultaneously.
Typical Speaker Wiring Diagrams:
ALSD2 - Siren Driver
6 to 18VDC
CONTROL PANEL
SPEAKERS
4 Ohms Min.
+
OUTPUT
2
---
+
OUTPUT
1
Two (2) Speakers, 8 Ohms each Three (3) Speakers, 8 Ohms each
Four (4) Speakers, 4 or 8 Ohms each
Two (2) Internal/External Hook-up
Fusing External Speakers:
Speakers that are accessible from
outside a building should have
a 2.5 amp fuse placed in series
with the speaker leads so that
any attempt to short the speaker
leads will blow the fuse on that
speaker while other speakers will
continue to operate.
Altronixisnotresponsibleforanytypographicalerrors.Productspecificationsaresubjecttochangewithoutnotice.
14058thStreet,Brooklyn,NewYork11220USA,718-567-8181,fax:718-567-9056
website:www.altronix.com,e-mail:[e-mail],LifetimeWarranty,MadeinU.S.A.
IIALSD2-Rev.070202 H15N
MEMBER
Voltage
Current
Drain
Load
6V 0.3A 8Ohms
6V 0.61A 4Ohms
12V 0.55A 8Ohms
12V 1.22A 4Ohms