System overview
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© 2019, ATEÏS, member of PAX ProAV Group
21. EVAC LED: The red LED will light up if the zone is in evacuation paging.
22. Alert/Page LED: The blue LED will light up if the zone is under paging (except for
evacuation paging).
23. Volume control knob (4 or 8 zones):
Individual zone rotary knobs to set the volume of BGM.
This knob is for audio source using internal amplifier, normally it's background music.
24. Air inlet holes:
The BTQ-VM4/8 controller has a cooling fan that takes in air from the front panel and exhausts it
from the rear panel. Please make sure that these inlet holes are not obstructed.
2.2.2
Rear panel
1. Internal amp output:
The output provides the 100V (EU type)/70V (US type) audio signal of internal power amplifier to
the BTQ-SL units.
2. External amp output:
This terminal connects to output of external amplifier.
3. A/B line zone outputs:
The BTQ-VM4 has 4 zones and BTQ-VM8 has 8 zones. Connect the loudspeakers to the zone
outputs. Each zone output is consisted of two loudspeaker line outputs. The open, short and
bad impedance faults can be detected by system for both speaker lines.
The controller is capable of handling 1000W speaker load per zone, 2000W max. per unit.
4. Relay control output:
There are eight relay outputs on BTQ-VM8 controller and four on BTQ-VM4 controller, they can
be programmed as close/open contact to an external device.
5. EVAC input:
There are nine EVAC inputs on BTQ-VM8 and five EVAC inputs on BTQ-VM4. The evac inputs
are N.O. (normally open) contact. They can be programmed for
and to monitor
the external contact.
Each channel supports 3 modes:
Monitored contact mode: The system can monitor the evac input and detect faults (4
status: on, off, open and short).
Disable: The cables which connect to evacuation input will not be monitored (faults will not
be detected).
