NGA-505 AS-NORTECH Addressable Sounder Base.

The addressable NGA-505 AS is available as an Addressable Sounder / Beacon which may be field configured to operate in either SHADOW or AUXILIARY modes. There are also versions available incorporating a loop isolator. Up to 64 NGA-505 AS devices can be connected to a single loop depending on Loop loading. All NGA-505 AS devices have dip-switch address setting while tone and mode selection is via a jumper. There is also a potentiometer which may be used to adjust the sound level if required.Normally the NGA-505 AS will be used in conjunction with a detector however a lid is available as an option for the NGA-505 AS. SPECIFICATION Shadow Sounder/ Beacon: A shadow sounder / Beacon does not have an individual address thus freeing up address for more detection devices. Shadow sounder / beacons do not report back to the control panel so their presence on the loop is not monitored. Auxiliary Sounder / Beacon: When the NGA-505 AS is configured as an Auxiliary device, it shares the same address as the detector with which it is co-located. When operating in this mode the NGA-505 AS monitors the address loop for the command from the control panel to the detector to illuminates its LED. When this command is received, the NGA-505 AS is also activated