Gilderfluke&Co old MACs 8 bit Digital Audio System - Manual (Page 19)

telling all the Repeater cards in the system to respond to it.
DUMB PA STATIONS are available with either four buttons (plus the microphone button) or one button
(just the microphone button). Any of the buttons can be configured to access any PA zone in the
system. The buttons on the front of the four button stations can be configured as push-to-talk buttons, to
latch the last requested zone, or auto-release the last zone latched when the microphone button is
released.
Because the PA system can be used for safety announcements, a number of different priority
options are available. The Digital Audio Repeater / Mixer cards each have one PA station each assigned
as top and second priority. These are assigned individually for each Digital Audio Repeater / Mixer card.
Valid PA requests from the second priority PA station override all other PA requests except those from the
top PA station. These priority PA STATIONS will usually be assigned to the station from which safety
announcements are normally made, and to the PA station located closest to the emergency exit for the
area covered by the speakers attached to that particular Digital Audio Repeater / Mixer card.
If no other PA priority options are used, then all other PA requests will be treated equally. If two valid
PA requests come in to the same Repeater card, then both are honored and the audio from both are
mixed equally. The STANDARD PRIORITY OPTION allows you to give PA STATIONS with higher number as-
signments priority over those with lower numbers. The ZONE PRIORITY OPTION allows PA ZONE requests for
higher numbered PA ZONES to take priority over those for lower numbered PA ZONES.
The local PA Outputs' priorities are set by the order in which you enter the PA zones an output will
respond to. The first entry has the highest priority.
For automated PA announcements, a phantom PA station is used. It is like any other PA STATION
except that it has no buttons or microphone on it. The audio and status output from a Digital Audio
Repeater is attached to the phantom PA station. When the Repeater is started, the status output triggers
the phantom PA station to request a PA ZONE and then feeds its audio into it. The audio will then be
routed to the appropriate audio outputs through the PA system just like any other announcement.
Different spiels can also be requested and PA Zones accessed through the serial port if needed.
SMART PA STATIONS are available with up to 18 buttons on their microphones. Any button can be
configured to request any other intercom station, mute or half-mute zone, send commands to one or
more Digital Audio Repeaters, or ramp the volume of any volume control zone up or down. For those PA
STATIONS which need access to more features than this number of buttons would allow, a numeric-style
entry is used to give them access to any features which you have enabled.
G ILDERFLUKE & C o . ¥ 205 S OUTH F LOWER S T . ¥ B URBANK , C ALIF . 91502-2102 ¥ 818/840-9484 ¥ FAX 818/840-9485
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