The ASM-7 Audio Signal Module combines a 45 Watt amplifier, 2 speaker,s and 2 signal notification appliance circuits (NAC) in one module. The integrated amplifier is fully supervised and protected against overloads. The signal source for the amplifier can be selected by input/output logic equations that are evaluated by the COM-2 Communications Card in the DAB-7 Motherboard.
The DAB-7 Motherboard supports ASM-7 module configurations that provide for a one-to-one backup scheme as well as a one-to-many backup scheme. This is accomplished by installing redundant ASM-7 modules inappropriate backup slots in the motherboard. In the event of a tone generator failure of the AMT-7 in the DAB-7 Motherboard, the ASM-7 will generate a temporal 3 evacuation tone. This tone will then be enabled to the speaker circuits when they are activated. The two ASM-7 speakers NAC’s can be wired as Style Y (Class B) or Style Z (Class A). The speaker circuits can be connected to the integral amplifier of the ASM-7 or to the backup amplifier in the motherboard. Each circuit is rated at 45W @ 70.7VRMS.
The entire capacity of the amplifier can be split in any ratio between the two speaker circuits. The two ASM-7 signals NAC’s can also be wired as Style Y (Class B) or Style Z (Class A). Each circuit is rated at 24VDC @ 1.5A. The signal circuits are compatible with any UL listed 24VDC polarized appliance devices such as a strobe light, bell, or horn. Device synchronization is supported with approved signaling appliances. The ASM-7 is a microprocessor controlled by the COM-2 Communication Card in the DAB-7 motherboard.
The ASM-7 receives commands and indicates its zone status to the COM-2. In the event of a microprocessor failure on the Communications Card, the ASM-7 operates in a degraded mode of operation. If selected, speaker and signal circuits can activate when an input to the motherboard goes into alarm. Additionally, the amplifier generates an appropriate audio signal. A Service Mode feature allows testing of the ASM-7 module without activating the circuit outputs. The ASM-7 module can be installed in the primary or backup positions of the DAB-7 Motherboard. This allows a backup amplifier to be switched in place of a failed unit.
- Microprocessor Controlled
- Selectable Degrade Mode Operation
- Service Mode Option
- All Wiring Power Limited
- Zone Activation LEDs
- Space Saving Design
- 45 Watt Amplifier @ 70.7VRMS
- Two Speaker Notification Appliance Circuits (NAC)
- Style Y (Class B) or Style Z (Class A) Wiring
- Each Circuit Can Carry the Full 45W Output Power
- Two Signal Notification Appliance Circuits (NAC)
- Style Y (Class B) or Style Z (Class A) Wiring
- 1.5A per Circuit Rating
- Supports Synchronization
ASM-7 | Audio/Signal Module Data Sheet