Multi-station physical layer communication over TP cable
First Claim
1. A method for providing inline power between a first and a second network device associated with a first node of a network and a third network device associated with a second node of the network, in a wired data telecommunications network, the method comprising:
- providing first inline power at a first voltage level from the first network device to the third network device;
providing second inline power at a second non zero voltage level different from the first voltage level from the second network device to the third network device; and
selecting one of the first inline power and the second inline power at the third network device in response to the voltage level associated therewith;
wherein the first voltage level is a first non-zero DC voltage;
wherein the second voltage level is a second non-zero DC voltage; and
wherein the first non-zero DC voltage is different from the second non-zero DC voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
Wired data telecommunications networks can make advantageous use of a communications capability between and among more than two network devices. Such capabilities may be utilized in providing redundancy of data and/or inline power capabilities from a pair of network devices to a third network device receiving the redundant capability. Impedance modulated communications are provided in a wired data telecommunications network among at least a first, second and third network device coupled together via a Y device. The Y device couples the three network devices (higher order Y devices could couple more than three devices) allowing monitoring of communications and inline power provision so that one of the network devices may act in response to monitored conditions by communicating via impedance modulated communications with one or both of the other network devices.
-
Citations
16 Claims
-
1. A method for providing inline power between a first and a second network device associated with a first node of a network and a third network device associated with a second node of the network, in a wired data telecommunications network, the method comprising:
-
providing first inline power at a first voltage level from the first network device to the third network device; providing second inline power at a second non zero voltage level different from the first voltage level from the second network device to the third network device; and selecting one of the first inline power and the second inline power at the third network device in response to the voltage level associated therewith; wherein the first voltage level is a first non-zero DC voltage; wherein the second voltage level is a second non-zero DC voltage; and wherein the first non-zero DC voltage is different from the second non-zero DC voltage.
-
-
2. A method for providing inline power between a first and a second network device associated with a first node of a network and a third network device associated with a second node of the network, in a wired data telecommunications network, the method comprising:
-
providing inline power at a first voltage level from the first network device to the third network device; coupling the inline power from the first network device to the second network device through a Y-device; monitoring the first network device at the second network device; and detecting at the second network device a condition of the first network device; initiating, responsive to said detecting, an impedance modulated signal from the second network device onto the wired data telecommunications network; receiving at the first network device, the impedance modulated signal; and backing off inline power provided between the first network device and the third network device in response to said receiving. - View Dependent Claims (3, 4)
-
-
5. A method for providing inline power between a first and a second network device associated with a first node of a network and a third network device associated with a second node of the network, in a wired data telecommunications network, the method comprising:
-
providing inline power at a first voltage level from the first network device to the third network device; coupling the inline power from the first network device to the second network device through a Y-device; monitoring the first network device at the second network device; and detecting at the second network device a condition of the first network device; initiating, responsive to said detecting, an impedance modulated signal from the second network device onto the wired data telecommunications network; receiving at the first network device, the impedance modulated signal; and backing off inline power provided between the first network device and the third network device in response to said receiving. - View Dependent Claims (6, 7, 8, 9)
-
-
10. A method for providing inline power between a first and a second network device associated with a first node of a network and a third network device associated with a second node of the network, in a wired data telecommunications network, the method comprising:
-
providing first inline power at a first voltage level from the first network device to the third network device; providing second inline power at a second voltage level from the second network device to the third network device; and selecting one of the first inline power and the second inline power at the third network device in response to the voltage level associated therewith; wherein the first voltage level is a first non-zero DC voltage; wherein the second voltage level is a second non-zero DC voltage; and wherein the first non-zero DC voltage is different from the second non-zero DC voltage. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
Specification