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Q-SYS PTL-1
Pilot Tone Load
Description
The PTL-1 is a Q-Sys accessory that provides an end-of-line 22 kHz impedance soak for 70/100V loudspeaker circuits. Used in combination with a QSC DataPort-equipped amplifier or CXD platform amplifier, the PTL-1 becomes a vital component for monitoring of a distributed loudspeaker line
List price *
£71.00
Key features
- Within Q-SYS, a 22 kHz pilot tone (outside the audible range of human hearing and undetectable above the program material) is transmitted along each loudspeaker line.
- Q-SYS, knowing the impedance value of the PTL-1, is then able to easily detect any deviation in the impedance at 22 kHz.
- Any significant drop below a predetermined impedance will signify that a short circuit has occurred, while any rise above signifies that an open circuit has occurred. Each failure scenario will then generate a time stamped event into the Q-SYS Event Log,
- Additionally, the user can select whether the pilot tone is only generated during a scheduled maintenance check, or whether the tone is always active to provide real-time diagnostics on every zone.
- Pilot tone detection on 70V or100V loudspeaker circuits using QSC DataPort and CXD platform amplifiers
- Ceramic screw-down connector block
- Fuse protects circuit against shorts
- Versatile install adapter plate included
- Fits most plenum-rated electrical boxes