
The Fonestar DOT-100TR is a 100 V line attenuator designed to provide local volume control for speakers in Public Address (PA) and voice evacuation systems. It utilizes an autotransformer for stable control and features priority wiring capabilities.
Key Features:
Type: 100 V line attenuator with an autotransformer.
Max Power: 100 W maximum power handling.
Inputs/Outputs: High Z (High Impedance) 100 V line.
Priority System: Includes support for 3-wire and 4-wire priority systems via a built-in relay, making it perfect for installations requiring emergency announcements or priority warnings.
Relay Specification: 24 V, 200 mW, 8 mA.
Controls: Features an ergonomic potentiometer with 10 attenuation positions plus an off switch.
Mounting: Designed for flush or surface mounting.
Fits universal square and round boxes for plasterboard partitions.
Can be surface mounted using the optional DOT-BOX.
Design: Minimalist aesthetic, supplied in white, but a black panel (DOT-01N) can be purchased separately.
| Feature | Specification |
| Type | 100 V Line Attenuator with Autotransformer |
| Max Power | 100 W |
| Compatibility | High Z 100 V Line |
| Controls | 10 Attenuation Positions + Off |
| Priority | 3-wire and 4-wire priority systems with 24 V Relay |
| Dimensions (Total) | 83 x 83 x 50 mm depth |
| Dimensions (Insert) | 50 x 50 x 38 mm depth |
| Weight | 0.2 kg |