Edwards EST QS1-CPU-1

Single Loop CPU/Display, One Annunciator Option Space

  • Material Obsolete
Brand: EST FireAlarm.com Part #: 44691 Categories: , Manufacturer Part #: QS1-CPU-1


The QS1 front panel display provides 14 lines by 16 characters of text detailing event, device, diagnostic, and programming information. Its large backlit LCD screen is easy to read and always provides at-a-glance indication of the system’s state of operation.

The CPU/Display Unit houses the CPU card and mounting space for one optional LED/Switch card.

If the CPU loses communication with other circuit cards, the power supply card continues to monitor the system for any alarm events. If an alarm occurs on any device or circuit during a communications failure, the power supply activates all alarm outputs and instructs the dialer to transmit a default alarm message to the monitoring station.


Weight 4 lbs

Production Status



Product Notes

No replacement available.


Edwards EST QS1-CPU-1 Data Sheet
Edwards – Data Sheet
Edwards EST QS1 Technical Reference Manual
Edwards – Reference Manual

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