Method for terminating an operation of a CPE device, and respective CPE device using the method

A customer premises equipment (CPE) device comprising

• a central processor;
• a line driver for a digital subscriber line (DSL) connection with a Central Office Equipment;
• a power supply configured to provide a first supply voltage for the central processor and a second supply voltage for the line driver;
• a rectifying element configured to decouple the second supply voltage from the first supply voltage;
• a capacitor configured to filter the second supply voltage and being coupled to the line driver, the capacitor further configured to supply a charge to the line driver when the power supply is switched off or in case of a power loss;
• wherein the CPE device is configured to send a power loss information to the Central Office Equipment in case of a power loss or a switch-off operation of the CPE device and the line driver remains active for a time period after the power loss or the switch-off operation to avoid a termination impedance change of the line driver during the time period;
• the CPE device shuts down an upstream signal of an upstream transmit path of the DSL connection in case of a power loss or a switch-off operation of the CPE device, but keeps the upstream transmit path powered, to not influence the termination impedance of the line driver;
• and
• the line driver is configured to switch off said upstream transmit path of the DSL connection after expiration of a timer or after detection of a disappearance of a downstream signal.