Products Lineup
Audio System
Amplifiers
Voice Evacuation System
PA Speakers
Pro-Audio Speakers
Wired Microphones
Wireless Microphones
Conference System
Network Audio Adapters
Intercom System
Megaphones
Mobile Amplifiers
Audio Source Device
Rack-mount Equipment
Program Timer
Mixers
Audio Signal Processors
CCTV System
PTZ Camera Systems
Fixed Cameras
Lenses for CCTV Cameras
Digital Video Recorders
Network Camera System (Netcansee)
Coaxial Multi-Transmission Unit
Camera Accessories
Other Equipment
Data Library

Here, TOA's Data Library equipped with a search engine offers its CAD drawings made out in pdf and dwg forms, EASE data, specification sheets, brochures, instruction and installation manuals, and a wealth of other product data for your downloading.

ATT-311 Attenuator

ATT-311

ATT-311

Intended for the ceiling speakers, the ATT-311 attenuator can adjust the speaker sound volume level in four steps depending on the installation place. Its push-in connector allows quick wire connection. Branched wiring and bridging are both possible.

Specification
Rated Input 3 W
Sound Volume Adjustment 1 W-3 W type
3 (0 dB), 2 (-6 dB), 1 (-12 dB), 0 (OFF) (1 W terminal connection)
3 (0 dB), 2 (-9 dB), 1 (-15 dB), 0 (OFF) (3 W terminal connection)
Usable Cable 600 V vinyl-insulated cable (IV cable and HIV cable)
Solid cable (Copper wire) : φ0.8 (0.03")〜φ1.2 (0.05") mm
2
Stranded cable (7-core copper wire) : 0.75 (0.03")〜1.25 (0.05") mm
Wiring Method Push-in connector (Bridging terminal / 2-branch type)
Finish Holder : ABS resin, Black
Dimensions(W×H×D) 64 (2.52")×69.5 (2.74")×27 (1.06") mm
Weight 40 g (0.09 lb.)
Usable Speakers PC-1837, PC-2337
Top of the Page