User's Manual

Mechanical Description
2. Mechanical Description
The enclosure of the SA-80G is made of sturdy ABS material,
capable of withstanding rain and dust. Sealing grommets on the
mounting holes and around the base render the unit water-
repellent. A transparent grill is used for sound transmission (from
the speaker), and for visual indications.
The siren cover holds a strong loudspeaker (see
Figure 1). The
base holds three printed circuit assemblies and a back-up battery
(see
Figure 2). A fully charged battery powers the unit for over 24
hours, in the event of power failure or disable, and during that
time the battery can power the alarm for at least five minutes.
The PCBs are snapped into place for easy replacement and
secure mounting. A tamper plunger provides switch closure in two
directions:
• Down - If the unit is torn off the wall, the plunger is
released down.
• Up - If the cover is removed from the unit, the plunger
rises.
The PCBs are:
• Main board
• Transceiver board
• Flash board
Warning!!!
High voltage is present on the terminals of the flash tube, when
enabled.
Page 4 SA-80A Installation Manual