User's Manual

Electrical Description
Page 7 SA-80A Installation Manual
continuously, for a period of 0.5 seconds, and then turns
off for 0.5 seconds. This is repeated three times
altogether, followed by a 1.5 second delay.
3.2 Self-Check
In addition to the alarms, the unit constantly checks itself. Every
four hours, the status of the battery is checked. If the battery is
low, the unit provides continuous visual indications: red LED
indicator flashes at a rate of two seconds on and two seconds off;
two short beeps are generated once per hour.
In the event that main power is removed due to a power failure or
break-in, the normally-illuminated green LED indicator is
extinguished.
3.3 Tamper Operation
The tamper switch is an input to the microprocessor and an
output to the alarm control panel (host). When the switch is
activated, the burglar alarm is generated for five minutes,
regardless of further tamper switch settings. This alarm can be
turned off only by activating the fire or burglar alarm, and then
deactivating it.
The system is armed only 30 seconds after activating and
deactivating the tamper switch function. This is useful for initial
installation and maintenance functions.
3.4 Wireless Operation
As this siren unit is wireless, it has a transceiver PCB. This board
receives/transmits the alarm/tamper/battery status from/to a
remote phone or panel, equipped to interface with the siren at a
distance of up to 200 meters. The board includes a
microprocessor connected to an ASK FM transceiver. An onboard
antenna enables communication to a remote location.