16 DAA2 & DAX — P/N 53265:A1 8/24/2011
DAA2 Digital Audio Amplifiers Description
Auxiliary Input A (AUX A) - TB 9
Signal strength from low-level analog audio input (such as background music or telephone
paging): 1V
p-p
max. Optional supervision through programming.
Recommended wiring: 14-18 AWG, twisted-pair.
Supervision programmable.
Auxiliary input source must be within 20 ft. ( 6.1 m) of the DAA2, and within the same room.
Speaker Circuits - TB10, TB11, TB12 and TB13
Power-limited outputs.*
* Exception: A DAA2-5070 speaker circuit used with any Canadian Room Isolator
module is non-power-limited. Speaker circuit 1 (TB10) can not be used.
DAA2-5025/70 - Each circuit rated up to 50 watts.**
DAA2-7525 - Each circuit rated up to 75 watts.**
**Total wattage may vary. Refer to “BDA Backup Digital Amplifiers” on page 67 for
configurations.
Supervision determined by programming.
25V
RMS
- DAA2-5025/DAA2-7525 speaker circuits, 70V
RMS
- DAA2-5070 speaker circuits.
Recommended wiring: 12-18 AWG twisted-pair (shielded recommended).
Class B or Class A:
Class B requires 20k end-of-line resistors (included, P/N ELR-20K).
Class A requires 10k end-of-line resistors (included, P/N R-10K) on the return.
Backup - BKUP1 (TB14), BKUP2 (TB15), BKUP3 (TB16), BKUP4 (TB17)
High-level audio input.
• 25V
RMS
(DAA2-5025 and DAA2-7525).
• 70V
RMS
(DAA2-5070).
Recommended wiring: 14-18 AWG twisted-pair (shielded recommended).
Supervision:
•Not supervised when inactive. Supervised by backup source when active.
•Must be in the same room or enclosure.
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