Method and system for line status indicators using line side power

In a terminal interface device, an indicator circuit using line side power for determining and indicating line status, said indicator circuit comprising:

• a. a diode bridge for rectifying an incoming communication signal with an input connected to a communication network line;
• b. an off-hook switch for controlling the initial connection to the communication network, said off-hook switch being electrically connected to said diode bridge;
• c. a current regulator for regulating the line side current flow to avoid damaging circuit indicators with an input electrically connected to said off-hook switch;
• d. at least one indicator for displaying various line status qualities including a LED for displaying the off-hook status of the circuit, said LED being electrically connected to said current regulator;
• e. a power dissipation circuit electrically connected to at least one indicator and the off-hook switch for protecting the circuit in high voltage, high current situations and for dissipating excess line side power.

In a terminal interface device, a power management circuit using line side power available from a communication network, said terminal interface device for operatively coupling a terminal device with said communication network, said line side power being available to said power management circuit when said terminal device and said communication network interact, said power management circuit comprising:

• a. a shunt regulator electrically coupled to a regulated output voltage to regulate said regulated output voltage by shunting to ground excess current;
• b. a voltage regulator at least indirectly electrically coupled to said communication network to convert, when said voltage regulator is enabled, said line side power available from said communication network directly into regulated line side power which indirectly becomes said regulated output voltage;
• and
• c. a hold current sink electrically coupled between said regulated line side power of said voltage regulator and said regulated output voltage as controlled by said shunt regulator;
• d. an indicator module for indicating line status electrically coupled to said regulated output voltage as controlled by said shunt regulator.