The AU-340-P Power Supply is the 3.5 Amp, 24 VDC internal power supply for a SigCom Voice Evacuation and Paging system. Utilizing the AU-340-P will provide a built-in DC power source for most small-end systems. Larger systems may utilize an external UL Listed power supply. The AU-340-P includes three LED indicators for AC, DC and Fault indications and a Common Fault contact for supervision of the power supply and batteries via the AU-360 and AU-380 series amplifier module.

A green LED indicates DC power is available from either the power supply or the batteries. A red LED indicates that primary AC voltage is available. A yellow LED will light if both AC power and a Fault are present. The Fault contact will be in the fault state if the batteries are shorted, open below minimum acceptable voltage or if the AC power has dropped below brownout voltage (90 VAC).

The amplifier is a supervised voice/alarm signaling interface that provides alarm signal tones which may be overridden by voice messages. The amplifier is attached to the reverse polarity bell circuit of a fire alarm control panel. The amplifier, signal generator, and speaker lines are continuously supervised. When a trouble condition occurs in the voice system, it is automatically indicated on the fire alarm control panel.

The microphone is attached to the amplifier and mounted in the cabinet. It provides the system with the ability to generate voice evacuation messages and paging instructions.

The digital message repeater broadcasts a prerecorded message over the system’s speakers upon receipt of an alarm condition. The unit initially broadcasts a “Slow Whoop,” waits for five seconds, then plays the recorded message. On the standard unit, the five-second pause and the message are repeated three times. The message and number of times it is repeated are programmable.

The zone splitter provides a mechanism to separate the speaker wiring configuration into four independently supervised loops, thus avoiding a long, continuous wire run through multiple areas. Separation of the speaker loops will allow selected alarm notification and paging and improve serviceability.

The system is designed to operate from the fire alarm control panel’s power. However, it may be desirable to provide an independent power supply for the voice/alarm signaling system. The optional unit available is a 24 VDC 3.5 amp power supply with an integral battery charger. Batteries are available separately. Minimum requirements are two 7A/H 12-volt batteries.

When approved by the authority having jurisdiction, the remote microphone station provides the system with the ability to have Day-to Day paging capability. When an alarm condition occurs, the remote microphone will be automatically disabled, so as not to interfere with alarm signal messaging.

The amplifier is a supervised voice/alarm signaling interface that provides alarm signal tones which may be overridden by voice messages. The amplifier is attached to the reverse polarity bell circuit of a fire alarm control panel. The amplifier, signal generator, and speaker lines are continuously supervised. When a trouble condition occurs in the voice system, it is automatically indicated on the fire alarm control panel.

The microphone is attached to the amplifier and mounted in the cabinet. It provides the system with the ability to generate voice evacuation messages and paging instructions.

The digital message repeater broadcasts a prerecorded message over the system’s speakers upon receipt of an alarm condition. The unit initially broadcasts a “Slow Whoop,” waits for five seconds, then plays the recorded message. On the standard unit, the five-second pause and the message are repeated three times. The message and number of times it is repeated are programmable.

The zone splitter provides a mechanism to separate the speaker wiring configuration into four independently supervised loops, thus avoiding a long, continuous wire run through multiple areas. Separation of the speaker loops will allow selected alarm notification and paging and improve serviceability.

The system is designed to operate from the fire alarm control panel’s power. However, it may be desirable to provide an independent power supply for the voice/alarm signaling system. The optional unit available is a 24 VDC 3.5 amp power supply with an integral battery charger. Batteries are available separately. Minimum requirements are two 7A/H 12-volt batteries.

When approved by the authority having jurisdiction, the remote microphone station provides the system with the ability to have Day-to Day paging capability. When an alarm condition occurs, the remote microphone will be automatically disabled, so as not to interfere with alarm signal messaging.

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).

When used in conjunction with the AU-360 and AU-380 Series amplifier modules, the AU-386 Series speaker loop zone splitter provides an excellent way of designing Voice Evacuation and Paging systems of any size and level of complexity.
The AU-386 Series speaker loop zone splitter provides the capability of splitting the audio output power from a single amplifier into four (4) speaker loop outputs. If additional speaker loops are required, AU-386 modules can be wired in series to expand the total number of speaker loops in multiples of four.
Control of zone selection is possible via manual control and/or by inputs from the Fire Alarm Control Panel (FACP). Automatic control allows for tones and/or messages to be broadcast to selected areas of a building, such as “Floor-above / Floor-below” in a high rise occupancy. There are two input options available. Please see Operation for details.

Audio will be broadcast into a selected zone only when that zone has been enabled. The red “Active” LED for any zone(s) enabled will be on. The yellow “Fault” LED for a zone indicates either an open circuit or a short circuit is present on the speaker loop. The “Common Fault” LED will activate when a fault condition is detected on any speaker loop or an internal fault occurs within the AU-386. If a speaker loop is shorted, the auto-reset fuse will open and isolate that zone for the duration of the short circuit.
Speaker loop outputs can be selected by utilizing one of two options. Providing a +24 VDC input to a zone select terminal on the AU-386 module will activate that zone. The selection of speaker loops on the AU-386-2 modules is accomplished by the closure of an external normally open (N.O.) dry contact or an open collector “pull down” circuit. Please reference Ordering Information when ordering.

The AU-360 Series Voice Evacuation Control Panel (VECP) amplifier module consists of a high quality audio amplifier with state-of-the-art protection circuitry, an integral tone generator, ruggedized power regulation, interface circuitry for connection to a UL Listed Fire Alarm Control Panel (FACP) and an optional preamplifier and microphone (-EM models).
A great deal of flexibility is available when utilizing the AU-360 Series amplifier module. Multiple modules can be installed together to increase the total audio power for the system and to increase the number of available speaker outputs. In addition, a variety of add-on modules are available to provide greater functionality and system customization. Please contact Signal Communications’ Applications Engineering department or your local authorized distributor for additional information.

When power is applied (24 VDC and 120 VAC) the green LED will light, indicating normal supervision. A fault in the speaker loop will be directly supervised by the FACP bell circuit. An internal fault in the AU-360 Series amplifier module will cause the green LED to go out and the yellow LED to light as well as causing a fault on the FACP bell circuit. The yellow and green LEDs become modulation indicators when the microphone paging is utilized. They will flash on and off, indicating peaks in the voice paging source.
120 VAC Supervision circuitry places the module into the Battery Saver condition with minimal power drain when 120 VAC is lost and the system is operating on batteries. Normal operation is restored when either 120 VAC is restored or signaling is required (alarm or paging).