# US 2015/0177818 A1 · Effective power management for pluggable transceiver receiving hardware in network switching systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2015/0177818 A1 - Document ID: US20150177818A1 - Status: Published application - Kind: A1 - Application number: 14/139,987 - Filed: 2013-12-24 - Published: 2015-06-25 - Earliest claimed: 2013-12-24 - Assignees: Lenovo Enterprise Solutions (Singapore) Pte. Ltd. - Applicants: Lenovo Enterprise Solutions (Singapore) Pte. Ltd. - Inventors: Behzad Assar; Stephen J. Flint; Michael W. J. Hogan; Mark Pearson - Web page: https://patentgrep.com/patent/US20150177818A1 ## CPC - G06F 1/3287: by switching off individual functional units in the computer system - G06F 1/3278: {Power saving in modem or I/O interface} - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A transceiver-receiving system, such as a network switch with pluggable transceivers, is built with hardware and machine logic so that power to certain components is turned off when the pluggable transceiver is not present in its plug in slot. The machine logic for handling the turning off an on of power is present on a processor on the board to which the plug-in slot is attached. The other hardware for handling the turning on and off of the power includes a communication line from the plug-in slot to the processor, and a set of switch(es) located on the power path for the component(s) to be turned on and off according to the presence of absence of the transceiver. ## Claims ### Claim 1 A method comprising: providing a transceiver-receiving system comprising: a first machine logic module, a first receiving connector, a first communication line, a first power supply, a first powered component, and a first switch; receiving, from the first receiving connector through the first communication line and by the first machine logic module, a first signal indicating that a removable transceiver module has been removed from the first receiving connector; and controlling, by the first machine logic module in response to receipt of the first signal, the first switch to turn off so that a flow of power from the first power supply to the first powered component is stopped. ### Claim 2 (depends on 1) The method of claim 1 further comprising: receiving, from the first receiving connector through the first communication line and by the first machine logic module, a second signal indicating that a removable transceiver module has been placed into the first receiving connector; and controlling, by the first machine logic module in response to receipt of the second signal, the first switch to turn on so that a flow of power from the first power supply to the first powered component begins. ### Claim 3 (depends on 1) The method of claim 1 wherein the first powered component is the first receiving connector. ### Claim 4 (depends on 1) The method of claim 1 wherein: the transceiver-receiving system further comprises a switch application specific integrated circuit (ASIC); and the first powered component is a portion of the switch ASIC. ### Claim 5 (depends on 1) The method of claim 1 wherein: the transceiver-receiving system further comprises: a switching-related powered transceiver signal processing component, a data bus structured and/or located to connect the first receiving connector and the switching-related powered transceiver signal processing component, and a first intermediate powered transceiver signal processing component structured and/or located to be in data communication with the data bus; and the first powered component is the first intermediate powered transceiver signal processing component. ### Claim 6 (depends on 5) The method of claim 5 wherein the switching-related powered transceiver signal processing component is in the form of an application specific integrated circuit. ### Claim 7 (depends on 5) The method of claim 5 wherein the first powered component is one of the following types: physical layer component, serializer/deserializer component, re-timer component, buffer memory component, and extended parallel server component. ### Claim 8 (depends on 1) The method of claim 1 wherein: the transceiver-receiving system further comprises: a switching-related powered transceiver signal processing component, a data bus structured and/or located to connect the first receiving connector and the switching-related powered transceiver signal processing component, and a plurality of intermediate powered transceiver signal processing components, with each intermediate powered transceiver signal processing component of the plurality of intermediate powered transceiver signal processing components structured and/or located to be in data communication with the data bus; the first powered component is the first intermediate powered transceiver signal processing component; and the method further comprises: controlling, by the first machine logic module in response to receipt of the first signal, power to all intermediate powered transceiver signal processing components of the plurality of intermediate powered transceiver signal processing components to be turned off. ### Claim 9 (depends on 1) The method of claim 1 wherein the first receiving connector is sized, shaped, connected, structured and/or located to receive at least one of the following types of removable transceiver modules: small form-factor pluggable, small form-factor pluggable plus, and quad small form-factor pluggable plus. ### Claim 10 (depends on 1) The method of claim 1 wherein the transceiver-receiving system is a network switching system. ### Claim 11 A transceiver-receiving system comprising: a first machine logic module; a first receiving connector; a first communication line; a first power supply; a first powered component; and a first switch; wherein: the first receiving connector, the first communication line and the first machine logic module are structured, connected and/or programmed to send from the first receiving connector through the first communication line to the first machine logic module, a first signal indicating that a removable transceiver module has been removed from the first receiving connector; and the first logic module is structured, connected and/or programmed to, in response to receipt of the first signal, control the first switch to turn off so that a flow of power from the first power supply to the first powered component is stopped. ### Claim 12 (depends on 11) The system of claim 11 wherein: the first receiving connector, the first communication line and the first machine logic module are further structured, connected and/or programmed to send from the first receiving connector, through the first communication line, to the first machine logic module, a second signal indicating that a removable transceiver module has been placed into the first receiving connector; and the first logic module is further structured, connected and/or programmed to, in response to receipt of the second signal, control the first switch to turn on so that a flow of power from the first power supply to the first powered component begins. ### Claim 13 (depends on 11) The system of claim 11 wherein the first powered component is the first receiving connector. ### Claim 14 (depends on 11) The system of claim 11 further comprising: a switch application specific integrated circuit (ASIC); and the first powered component is a portion of the switch ASIC. ### Claim 15 (depends on 11) The system of claim 11 further comprising: a switching-related powered transceiver signal processing component; a data bus structured and/or located to connect the first receiving connector and the switching-related powered transceiver signal processing component; and a first intermediate powered transceiver signal processing component structured and/or located to be in data communication with the data bus; wherein: the first powered component is the first intermediate powered transceiver signal processing component. ### Claim 16 (depends on 15) The system of claim 15 wherein the switching-related powered transceiver signal processing component is in the form of an application specific integrated circuit. ### Claim 17 (depends on 15) The system of claim 15 wherein the first powered component is one of the following types: physical layer component, serializer/deserializer component, re-timer component, buffer memory component, and extended parallel server component. ### Claim 18 (depends on 11) The system of claim 11 further comprising: a switching-related powered transceiver signal processing component; a data bus structured and/or located to connect the first receiving connector and the switching-related powered transceiver signal processing component; and a plurality of intermediate powered transceiver signal processing components, with each intermediate powered transceiver signal processing component of the plurality of intermediate powered transceiver signal processing components structured and/or located to be in data communication with the data bus; wherein: the first powered component is the first intermediate powered transceiver signal processing component; and the first machine logic module is further structured, connected and/or programmed to, in response to receipt of the first signal, control power to all intermediate powered transceiver signal processing components of the plurality of intermediate powered transceiver signal processing components to be turned off. ### Claim 19 (depends on 11) The system of claim 11 wherein the first receiving connector is sized, shaped, connected, structured and/or located to receive at least one of the following types of removable transceiver modules: small form-factor pluggable, small form-factor pluggable plus, and quad small form-factor pluggable plus. ### Claim 20 (depends on 11) The system of claim 11 wherein the transceiver-receiving system is a network switching system.