GAI-Tronics 69268-001 Amplifier Zone Interface II (AZI) - Manual (Page 8)

Pub. 42004-614L2C
69268-001 Amplifier Zone Interface II PCBA Page: 8 of 9
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Operation
The MCU controls the operation of the AZI II board in accordance with the parameters setup in the
system configuration. Refer to system manual for AZI II board configuration.
Accessories
Part Number Description
61213-006 Cable Assembly, 64 DIN to D-Sub
Specifications
Electrical
Power requirements ......................................................... +5 V dc, +12 V dc, −12 V dc (from backplane)
Current draw (quiescent)................................................................................ Nominal 140 mA @ +5 V dc
90 mA @ +12 V dc
80 mA @ −12 V dc
Connections....................................................................................................... 2 × 64-pin DIN connectors
Audio input ...................................................................................................................... 1.5 V
RMS
nominal
Audio output adjustment range (no attenuation, @ 1 kHz) .......0.078–2.0 V
RMS
nominal (10M-ohm load)
0.039–1.0 V
RMS
nominal (600-ohm load)
Audio output adjustment range (Amplifiers 6 and 12, @ 1 kHz) ...................................................... 34 dB
Supervisory tone adjustment range.............................................. 0.18–2.0 V
RMS
nominal (600-ohm load)
Output impedance (Amplifiers 1–12, @ 1 kHz) .......................................................................... 600 ohms
Frequency response...................................DC-31 kHz (+0/−3 dB reference to 1 kHz) (Supervisory Tone)
DC-8 kHz (+0/−3 dB referenced to 1 kHz) (Fail-safe Tone)
16 Hz–8 kHz (+0/−3 dB referenced to 1 kHz) (All other audio inputs)
Distortion .....................................................................................................Less than 0.5% THD @ 1 kHz
Front bezel LED indicators.......................................................................................................... ON-LINE
RTS
EOL FAULT
Front bezel controls........................................................................................................NORMAL LEVEL
EMERGENCY
LEVEL
Additional Controls..................................................................................................................AMP 6 VOL
AMP 12 VOL
SPVR VOL