Gai-tronics 69268-001 DATASHEET
Pub. DS69268-001
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
69268-001
Amplifier Zone Interface II PCBA
General Information
This data sheet applies to the GAI-Tronics 69268-001 Amplifier Zone Interface II (AZI II) PCBA.
N
OTE: If the 69268-001 Amplifier Zone Interface II (AZI II) board is being installed in a system that
does not currently have an AZI II, the GAI-Tronics Service Department modify the system configuration.
The 69268-001 AZI II board is designed to be installed in the 10457 Series Card Rack Assembly and is
used as an interface between a 69254 Series or 69440 Series MCU and up to 12 power amplifiers.
The AZI II Board performs the following functions:
• Audio switching of the backplane page resources to the power amplifiers. There are two page
resources or buses available in the 10457 Series Card Rack.
• Audio switching from the backplane Supervisory Tone resource to the power amplifiers. The
Supervisory Tone permits health check monitoring of the power amplifiers’ speaker loops. The
supervisory tone incorporates gain control.
• Provides an audio path from the backplane Fail-safe Bus Tone to the power amplifiers.
• Provides normal/emergency output level selection for each of the two backplane page resources.
Each level is manually adjustable through the front bezel. The MCU controls output level selection.
• Provides manually-adjustable gain on two of the 12 outputs. The Amplifier 6 and Amplifier 12
outputs incorporate gain control.
• Provides RS-485 communication to external Snaptrack™ modules.
Specification s
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
Audio output adjustment range (no attenuation, @ 1 kHz) ........ 0.078–2.0 V
...................................................................................................... 0.039–1.0 V
nominal (10M-ohm load)
RMS
nominal (600-ohm load)
RMS
Audio output adjustment range (Amplifiers 6 and 12, @ 1 kHz) ......................................................... 34 dB
Supervisory tone adjustment range................................................. 0.18–2.0 V
nominal (600-ohm load)
RMS
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
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
nominal
RMS
Pub. DS69268-001
69268-001 Amplifier Zone Interface II PCBA Page: 2 of 2
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
Temperature range (operating/storage)................................................. +32° F to +122° F (0° C to +50° C)
Humidity .......................................................................................... 95% non-condensing relative humidity
Unit dimensions ...................................................................................... 10.30 H × 0.78 W × 9.07 D inches
Unit weight........................................................................................................................ 1.2 lbs. maximum
Approval
CE Mark
Figure 1. The Amplifier Zone Interface II PCBA - 69268-001
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