The Zeta addressable common sounder base
is essentially an addressable sounder which
does not take an address. Instead it listens to
address 126 and responds to commands sent to
this address.
The combined sounder & flasher version also includes a
loop short circuit isolator, which minimises the number
of devices that would be inoperative in the case of a
short circuit on the loop.
There is no volume adjustment potentiometer, instead
the sounder is supplied set to it’s maximum volume.
Although the sounder does not communicate with the
control panel, it must be used in conjunction with
an addressable detector. For monitoring purposes,
the sounder is treated as a conventional sounder and
monitored as part of the loop.