Subscriber circuit having splitter disconnection function
AssigneeNEC Corporation
InventorHideki Kikui
Life of this patent
Estimating the term…
Abstract
A subscriber circuit allowing a reliable and proper subscriber line test is disclosed. The subscriber circuit includes a splitter and a feeder for feeding a current to subscriber equipment through a subscriber line. A path selector is provided to select one of a first path and a second path between the subscriber line and the feeder. The first path has the splitter inserted therein and the second path has no splitter inserted therein. The path selector normally selects the first path. When the subscriber line test instruction is received, the path selector selects the second path.
Claims9
A subscriber circuit connected to subscriber equipment through a subscriber line, comprising:
- a splitter for splitting a signal on the subscriber line into a lower-frequency band signal and a higher-frequency band signal;
- a feeder for feeding a current to the subscriber equipment through the subscriber line;
- a path selector for selecting one of a first path and a second path between the subscriber line and the feeder, wherein the first path has the splitter inserted therein and the second path has no splitter inserted therein;
- and
- a controller controlling path selection of the path selector depending on whether a subscriber line test instruction is received from a host.
A subscriber circuit connected to subscriber equipment through a subscriber line, comprising:
- a splitter for splitting a signal on the subscriber line into a lower-frequency band signal and a higher-frequency band signal;
- a feeder for feeding a current to the subscriber equipment through the subscriber line;
- a switch connected to the subscriber line, for selectively connecting and disconnecting the feeder to the subscriber line;
- a path selector connected between the switch and the feeder, for selecting one of a first path and a second path, wherein the first path has the splitter inserted therein and the second path directly connects the feeder and the switch;
- and
- a controller controlling the switch and the path selector depending on whether a subscriber line test instruction is received from a host.
A subscriber circuit connected to subscriber equipment through a subscriber line, comprising:
- a splitter for splitting a signal on the subscriber line into a lower-frequency band signal and a higher-frequency band signal;
- a feeder for feeding a current to the subscriber equipment through the subscriber line;
- a selector connected to the subscriber line, for selecting one of a first path and a second path, wherein the first path has the splitter inserted therein and the second path directly connects the feeder and the subscriber line;
- a switch for selecting one of the first path and the second path synchronously with the selector, wherein the switch selectively connects and disconnects the feeder to the subscriber line;
- and
- a controller controlling the switch and the selector depending on whether a subscriber line test instruction is received from a host.
A control method for a subscriber circuit connected to subscriber equipment through a subscriber line, the control method comprising the steps of:
- preparing a first path and a second path between the subscriber line and a feeder that feeds a current to the subscriber equipment through the subscriber line, wherein the first path has a splitter that splits a signal on the subscriber line into a lower-frequency band signal and a higher-frequency band signal inserted therein and the second path has no splitter inserted therein;
- determining whether a subscriber line test instruction is received from a host;
- when no subscriber line test instruction is received, selecting the first path;
- and
- when the subscriber line test instruction is received, selecting the second path.
Dependencies are inferred from the claim text.