Broadcast Deactivation –The Desktop Controller is equipped with a “Deactivate” pushbutton that,
when pressed, will immediately deactivate all speakers assemblies and return them to their sleep or rest
state. This will allow for manual deactivation of the speaker assemblies if an erroneous signal is keeping
the speakers’ amplifier circuits active (line noise, RF interference, etc.).
The Model ACC2500 Desktop Controller can be programmed to display each zone as an alias on its LCD
display. Alias simply means a “name” for the zone or address. The same can be programmed for each
individual unit. To broadcast a pre-programmed message/alarm to a specific zone or unit, the Desktop
Controller operator will press the Zone UP or DOWN button to locate the desired zone, press the Alarm
UP or DOWN button to locate the desired alarm (evacuate, tornado, all clear, etc.), the press the
TRANSMIT button. The alarm will begin broadcasting only in the selected zones or units. The audio
that will be heard from each speaker or stanchion selected will also be heard over the Desktop
Controller’s integral speaker. If the handset if off-hook, this audio will be heard over the handset receiver
(earpiece). The message/alarm will play for the duration it has been programmed to broadcast or until the
DEACT button is pressed to deactivate all units.
If a the Desktop Controller operator desires to broadcast a live voice message while a pre-programmed
message/alarm is in progress, they simply press the transmit button and talk or lift the handset from its
cradle and talk while pressing the handset pressbar. The pre-programmed message/alarm audio level will
be reduced or muted (depending on programming) for the duration of the live voice broadcast
(TRANSMIT button or pressbar must be activated during live voice broadcast). Releasing the
TRANSMIT or pressbar will allow the pre-programmed message/alarm to return to normal volume.
If the Desktop Controller operator desires to simply broadcast a live voice message, they must select the
zone alias or enter the desired zone code via the keypad, press and hold the TRANSMIT button (or
handset pressbar), and begin speaking when “TALK NOW” appears in the LCD display.
Model 10959-903 Audio Messenger Interface
The Model 10959-903 Audio Messenger Interface (AMI) provides superior quality digital tone/speech
generation and telephone interface and feedback elimination capability. A Compact Flash™ Card Kit
stores the configuration programming, the voice and tone recordings, and provides CD-quality sound
reproduction.
Direct RS232 access from the Model ACC2500 Desktop Controller allows control of up to 125 pre-
recorded tone, speech, or tone/speech messages. Each alarm/message can be programmed for continuous
play, timed duration, or number of repeat cycles. Pre-recorded speech messages can be wave file or MP3
format.
LIVE VOICE TELEPHONE SYSTEM ACCESS
In addition to the head-end controller operation, the system can be accessed via the campus telephone
system. An extension number would need to be provided for telephone access. Upon dialing this
number, the telephone operator would receive verbal instructions followed by a splash tone. Upon receipt
of the splash tone, the operation will dial the DTMF access code of the desired voice broadcast location.
As with the deskset, this can be an individual stanchion assembly, a zone or group, or all stanchion
assemblies. This is a voice broadcast operation only, as no alarms can be activated from the telephone.
The public address system can also be accessed from an existing VHF (154 - 174 MHz) or UHF (450 -
470 MHz) radio system. Radio equipment with integral DTMF keypads (DTMF encode) is necessary to
perform the live voice access. The same DTMF codes utilized by the telephone system operation
previously mentioned will be utilized by the radios. The radio operator would simply select the operating
frequency and, while engaging the PTT, transmit the DTMF code and begin speaking into the radio
microphone. This is a voice broadcast operation only, as no alarms can be activated from a radio.
