Entry adapter for a catv network

An entry adapter for a cable television (CATV) network, comprising:

• an input port configured to communicate upstream and downstream CATV signals with the CATV network;
• a splitter having a first leg and a second leg, the splitter being coupled to the input port;
• an active port configured to communicate upstream and downstream CATV signals with at least one subscriber device;
• a first diplexer comprising a common terminal coupled to the first leg of the splitter, a high-frequency terminal, and a low-frequency terminal, wherein the first diplexer is configured to receive downstream CATV signals from the splitter and separate the received downstream CATV signals into a high-frequency signal having a frequency of at least about 54 MHz at the high-frequency terminal, and a low-frequency signal having a frequency less than about 42 MHz at the low-frequency terminal;
• a second diplexer coupled to the active port and comprising a high-frequency terminal in communication with the high-frequency terminal of the first diplexer, a low-frequency terminal in communication with the low-frequency terminal of the first diplexer, and a common terminal;
• a first amplifier coupled to the high-frequency terminals of the first and second diplexers;
• a second amplifier coupled with the low-frequency terminals of the first and second diplexers;
• a first signal path extending from the first leg of the splitter and comprising:
• a first high-frequency signal path between the high-frequency terminals of the first and second diplexers and through the first amplifier, wherein the first amplifier is configured to block signals from proceeding from the second diplexer to the first diplexer via the first high-frequency signal path, and to amplify the downstream CATV signal in the first high-frequency signal path;
• and
• a first low-frequency signal path between the low-frequency terminals of the first and second diplexers and through the second amplifier, wherein the second amplifier is configured to block signals from proceeding from the first diplexer to the second diplexer via the first low-frequency signal path, and to amplify the upstream CATV signal in the first low-frequency signal path;
• a third diplexer comprising a common terminal coupled to the second leg of the splitter, a high-frequency terminal, and a low-frequency terminal, wherein the third diplexer is configured to separate downstream CATV signals having a frequency of at least about 258 MHz at the high-frequency terminal thereof and downstream CATV signals having a frequency of less than about 200 MHz at the low-frequency terminal thereof;
• and
• a fourth diplexer coupled to the active port, and having a high-frequency terminal coupled to the high-frequency terminal of the third diplexer, and a low-frequency terminal coupled to the low-frequency terminal of the third diplexer;
• a third amplifier coupled with the high-frequency terminal of the third diplexer and with the high-frequency terminal of the fourth diplexer;
• a fourth amplifier coupled with the low-frequency terminal of the third diplexer and with the low-frequency terminal of the fourth diplexer;
• a second signal path comprising:
• a second high-frequency signal path between the high-frequency terminals of the third and fourth diplexers and through the third amplifier, wherein the third amplifier is configured to block signals from proceeding from the fourth diplexer to the third diplexer via the second high-frequency signal path, and to amplify the downstream CATV signal in the second high-frequency signal path;
• and
• a second low-frequency signal path between the low-frequency terminals of the third and fourth diplexers and through the fourth amplifier, wherein the fourth amplifier is configured to block signal from proceeding from the third diplexer to the fourth diplexer via the second low-frequency signal path, and to amplify an upstream CATV signal in the second low-frequency signal path;
• and
• a signal frequency sensor and selector device in selective communication with the first and second signal paths, wherein the signal frequency sensor and selector device is configured to detect a frequency of an upstream CATV signal received from the active port to a selected one of the first or second signal paths, wherein the signal frequency sensor and selector device is configured to route the upstream CATV signals to first signal path in response to detecting that the frequency of the upstream CATV signals is less than about 54 MHz, and to route the upstream CATV signals to the second signal path in response to detecting that the frequency of the upstream CATV signals is greater than about 54 MHz, and
• wherein the signal frequency sensor and selector device comprises:
• a sensor configured to detect a frequency of the upstream CATV signals;
• and
• a switch in communication with the sensor, wherein the switch has a first state in which the switch is configured to route the upstream CATV signals to the first signal path, and a second state in which the switch is configured to route the upstream CATV signals to the second signal path.