DESCRIPTION 1-15
CHAPTER 1 | FIREFINDER-XLS INSTALLATION, OPERATION AND MAINTENANCE MANUAL
VOICE SYSTEM MODULES
AIC Audio Input Card The AIC (Audio Input Card) is a card that provides two external isolated
analog audio inputs to the voice system. External audio sources can be
any of the following: tape recorder, CD player, radio, PBX interface (for
convenience paging through the telephone system), etc.
The AIC contains two dry contact inputs to activate the two audio inputs
separately.
Each input can be configured independently for different usages via the
Zeus programming tool. Each input can be controlled automatically via
system logic dependant on its individual configuration or manually by
using the voice control panel. The input levels can be adjusted via the
Zeus tool or manually with push buttons at the AIC front panel. During the
initial power-up condition, each input is shut off.
ALCC Audio Level The ALCC is an Audio Level Conversion Card that contains two audio
Conversion Card channels. Each channel is capable of accepting speaker-level audio at 70VRMS from
Siemens amplifier model ZAC-40. There is a single output channel of line-level audio
for connection to the AIC (Audio Input Card).
The ALCC adds system-wide live emergency paging capability to networked
XLSM systems. Located on the receiving end in up to 63 remote XLS
nodes, the ALCC converts the audio signal generated by the amplifiers
located in the primary and secondary paging stations into a form that is
compatible with AICs located in the remote stations.
The ALCC is transparent to the host system. As such, it supports all styles of
wiring supported by ZAC-40 amplifiers. It provides supervision by constantly
monitoring its two audio channels, reporting faults both visually and through
the downstream AIC. Furthermore, the ALCC contains audio detection and
channel selection circuitry that prioritizes incoming audio, enables the
appropriate channel, closes the AIC audio active contact, or cuts the output
of the ALCC to generate an AIC trouble, depending on the presence of
incoming audio or circuit faults. Finally, all XLS functions are configured in the
Zeus programming tool via standard logic functions with no need for special software
or hardware upgrades.
ZONE 1 ACT
ZONE 2 ACT
ZONE 2 ACT
NORMAL
NORMAL
OVERLOAD
OVERLOAD
ZONE 1 TRBL
ZONE 2 TRBL
ZONE 1
ZONE 2
CARD FAIL
ASI FAIL
CAN FAIL
+
-
+
-
PRIMARY SELECTED
SECNDRY SELECTED
POWER
ALCC
FAULTTEST
GAIN
_
+
ACTIVE
FAULT
SECONDARY
CHANNEL
FAULTTEST
GAIN
ACTIVE
FAULT
PRIMARY
CHANNEL
_
+
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