DAA2 & DAX — P/N 53265:A1 8/24/2011 103
Installation DAA Digital Audio Amplifiers
In a CHS-BH1 Battery Chassis
This chassis will hold two 12AH batteries, and will mount on the left side of the DAA chassis, so
that the DAA and batteries are contained in a single cabinet row.
To mount the CHS-BH1 onto the DAA chassis: Place battery holder against DAA chassis,
resting on support as shown in Figure C.9. Align chassis standoffs with holes. Fasten with the two
8/32” hex nuts supplied.
Place the batteries on their sides in their trays before wiring. Refer to “Connecting the DAA Power
Supply to the Batteries” on page 104 for wiring instructions.
Within the CAB-4 Enclosure
Place the batteries in the bottom of the cabinet, as shown
in Figure C.10. Refer to “Connecting the DAA Power
Supply to the Batteries” on page 104 for wiring
instructions.
Outside the DAA Enclosure
Batteries may be installed outside the DAA enclosure.
The battery cables must be in conduit between the
enclosures for the batteries and the DAA. Refer to
“Connecting the DAA Power Supply to the Batteries” on
page 104 for wiring instructions.
C.2.3 Wiring
Connecting the DAA Power Supply to AC Power
The DAA power supply requires connection to a separate dedicated AC branch circuit. Follow
these guidelines when connecting the AC branch circuit:
• Label the branch circuit “Fire Alarm”.
CHS-BHtoDAAchassis.wmf
CHS-BHwbatts.wmf
Place battery holder against DAA chassis, resting
on support. Align chassis standoffs with holes.
Fasten with the two washers (P/N 43123) and 8-32
KEPS hex nuts (P/N 36047) supplied.
Place batteries in the trays.
Support
Figure C.9 Mounting the CHS-BH1
CAB4DwDAAbats.wmf
DAA in top row of
CAB-4D
Figure C.10 Battery Installation
Within the Cabinet
Batteries for
DAA
WARNING: High Voltages Present.
Use extreme caution when working with the DAA. High voltage and AC line-connected circuits are
present. Turn off and remove all power sources. To reduce the risk of electric shock, make sure to
properly ground the DAA.
Close the hinged cover for TB1 after wiring but before energizing.
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