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OPERATION
Controls and Indicators
The ZIC-4AC contains four Class A circuits. Each circuit is rated at 4A at
24VDC and has an input connected to the power source and an output where
the NAC devices are connected. The zone inputs are isolated from one
another and are supervised for the presence of power. This allows the use of
different power sources with different ground references. The zone output is
supervised for open and short circuit conditions while the zone is inactive and
allows different combinations of output configurations (Standard NAC or
Speaker) per card. Each ZIC-4AC card occupies any one card slot in the CC-
5/CC-2 cardcage. The ZIC-4AC also has the capability to detect ground fault
on its zone output as indicated by a diagnostic LED.
Strobe unsynchronized:
Input 1is connected directly to output 1, output is ON steady. Same for In-
/Outputs 2, 3 and 4
Strobe synchronized:
Input 1 is connected directly to output 1, Output is ON for about 1 second,
then a ZIC-4AC onboard relay switch output polarity (+24V is now GND and
GND is now +24V). This will cause the strobes to flash. All ZIC-4AC outputs
configured as strobe sync will switch output polarity at the same time, also
outputs from other ZIC-4AC. Same for In-/Outputs 2, 3 and 4
Bulk amplification 1 channel:
Input 1is connected directly to output 1, output is ON steady. Same for In-
/Outputs 2, 3 and 4
Bulk amplification 2 channel:
This mode provides the possibility to choose between two different signal
for one speaker line. Signal one (A) has to be connected to input 1. Signal two
(B) has to be connected to input 2. A ZIC-4AC onboard input relay switches
automatically the correct signal to the outputs 1 and 2. The functionality is
identical for IN-/Output pairs 3 and 4.
The Front Panel of the ZIC-4AC contains one reset switch, thirteen LEDs,
and three CAN address switches as shown in Figure 1.
A Reset Switch is located on the top of the front panel. Pushing the reset
switch re-initializes the ZIC-4AC operation.
The LEDs follow the reset switch and their functions are defined as follows:
POWER
CARD FAIL
CAN FAIL
HNET FAIL
2
(Green)
Normally ON. When illuminated,
indicates that power for the ZIC-4AC is
applied to the card.
(Yellow)
Normally OFF. When illuminated,
indicates that the card microprocessor
has failed.
(Yellow)
Normally OFF. When illuminated,
indicates that the CAN communication
with the ZIC-4AC has terminated and
the card goes into degrade mode
(Yellow)
NOT USED
A24205-A334-B827
P/N 315-035850-2
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