AT-100EMG - Controller TOA - Free user manual and instructions
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| Brand | TOA |
| Model | AT-100EMG |
| Product Type | Emergency Microphone Controller |
| Primary Use | Emergency announcements and public address in commercial or industrial facilities |
| Microphone | Dynamic gooseneck microphone with push-to-talk switch |
| Zone Selection | Up to 10 selective zone buttons plus all-call |
| Function Controls | Priority mode, chime activation, microphone gain |
| Status Indicators | LED indicators for power, broadcast, and zone status |
| Power Supply | 24 V DC (via TOA amplifier or compatible power unit) |
| Current Consumption | Approx. 150 mA maximum |
| Mounting Type | Desktop or wall mounting with optional bracket |
| Dimensions (W x H x D) | 210 x 70 x 200 mm (approx. 8.3 x 2.8 x 7.9 in) |
| Weight | 1.2 kg (2.6 lb) |
| Materials | Metal chassis with matte black finish |
| Connector Type | Screw terminal block for audio and control wiring |
| Compatibility | TOA 100V line amplifiers and paging systems |
| Safety Feature | Mechanical priority switch with key lock |
| Cleaning Method | Wipe with a soft dry cloth; avoid liquids on the unit |
| Operating Temperature | 0 °C to +40 °C (32 °F to 104 °F) |
| Standards | Designed to comply with EN 60849 for emergency sound systems |
Frequently Asked Questions - AT-100EMG TOA
How do I connect the AT-100EMG to my TOA amplifier?
Connect the AT-100EMG to a compatible TOA amplifier using the screw terminal block on the rear panel. Follow the wiring diagram in the manual: the MIC IN terminals connect to the microphone input, and the CONTROL OUT terminals connect to the remote control port. Use shielded twisted-pair cable to avoid interference.
What power supply does the AT-100EMG require?
The AT-100EMG is powered by 24 V DC. This can be supplied by the connected TOA amplifier through the control connector, or by an external 24 V DC power supply. Make sure the polarity is correct to avoid damage.
Can I perform a one-touch all-call broadcast?
Yes, the AT-100EMG has a dedicated ALL-CALL button. Pressing this button selects all zones simultaneously. In an emergency, you can press it and the PUSH-TO-TALK bar on the microphone to broadcast to every zone immediately.
How do I adjust the microphone gain?
The microphone gain is adjusted via the MIC GAIN control on the front panel. Turn it clockwise to increase sensitivity and counterclockwise to decrease it. For emergency use, set the gain to a level where your voice is clearly audible without feedback.
Is the AT-100EMG suitable for wall mounting?
Yes, the AT-100EMG can be wall mounted using an optional mounting bracket (TOA MB-100). The device has keyhole slots on the bottom for secure installation. Ensure the bracket is anchored to a solid wall.
What does the key lock do?
The priority key lock is a safety feature. When locked, only the highest priority emergency broadcasts can be activated. This prevents accidental or unauthorized zone changes during regular operation. Use the supplied key to turn it.
How can I test the status LEDs?
When the unit is powered, the POWER LED lights green. During a broadcast, the BROADCAST LED turns red. Each selected zone button has an associated LED that lights when that zone is active. If an LED doesn't light, check the connections.
What should I do if there is no sound from the microphone?
First verify that the push-to-talk switch is pressed. Then check the MIC GAIN level and ensure the zone buttons are selected. Confirm the amplifier's volume is not muted. If the issue persists, inspect the microphone capsule for damage and test with another microphone.
What is the maximum cable length between the controller and amplifier?
For reliable operation, keep the cable between the AT-100EMG and the amplifier under 10 meters (33 feet). Use low-capacitance shielded cable to minimize high-frequency loss. For longer distances, use an active balance line driver.
How do I clean the AT-100EMG correctly?
Disconnect the power before cleaning. Wipe the surfaces with a soft, dry cloth. For stubborn stains, use a cloth slightly dampened with water and mild detergent. Never use alcohol, benzene, or abrasive cleaners, as they may damage the finish.
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USER MANUAL AT-100EMG TOA
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Product information
Brand : TOA
Model : AT-100EMG
Category : Controller