The alarm devices (NRT) of the XS series are compact units that can be installed directly in the COP. The devices provide the essential functions of the XT series.
For operation, an uninterrupted power supply of 12–24 V DC is required.
When using a mobile network gateway of the XT series or an IP gateway, the NRT can also be powered through these devices.
Alternatively, a standalone power supply is available for the NRT XS-series. The unit designated USV 12 XT (part number 601417) can supply uninterrupted power to up to nine alarm devices, for example.