Cisco Technology, Inc.

Paolo Sironi

Joel Richard Goergen

Chad M Jones

Roberto Gianella

Rohit Dev Gupta

Gilberto Loprieno

M Baris Dogruoz

Emanuele Umberto Giacometti

Giovanni Giobbio

Sushin Suresan Adackaconam

Jason DeWayne Potterf

Gabriele Maria Galimberti

Stefano Binetti

Marco Portinari

Simone Vigna

Francesco Mariani

Madhuri Chandrashekharaiah

In one embodiment, a method includes transmitting power in a power and data distribution system comprising at least two pairs of wires, negotiating a power level between Power Sourcing Equipment (PSE) and a Powered Device (PD) in the power and data distribution system, transmitting the power at a power level greater than 100 watts, periodically checking each of the wires for a fault, and checking for an electrical imbalance at the wires.

Wire fault and electrical imbalance detection for power over communications cabling

A housing for an electronic device includes a panel, where the panel includes a window. A cage includes a plurality of panels and a first end and a second end that opposes the first end. The cage further includes an opening at its first end and an enclosure disposed between the panels of the cage. Connecting structure is disposed at the first end of the cage, where the connecting structure secures the first end of the cage to the panel. The cage is suitably dimensioned to receive and retain a portion of a pluggable module within the enclosure when the pluggable module is inserted within the opening at the first end of the cage.

Optical module cages mounted for optimal density and cooling

Embodiments presented in this disclosure generally relate to a ground device. More specifically, embodiments disclosed herein are directed to a grounding device for indicating whether there is proper grounding for electrical equipment. One embodiment presented in this disclosure provides an apparatus. The apparatus generally includes a lug configured to be coupled to a physical ground node, the lug having one or more bolts for coupling the lug to a surface of a plate such that the physical ground node is electrically coupled to an electrical ground node. The apparatus also includes a sensing circuit configured to detect whether the physical ground node is electrically coupled to the electrical ground node, and provide an indication of whether the physical ground node is electrically coupled to the electrical ground node based on the detection.

Ground connection detection in an electronic equipment

A housing for an electronic device includes a panel, where the panel includes a window. A cage includes a plurality of panels and a first end and a second end that opposes the first end. The cage further includes an opening at its first end and an enclosure disposed between the panels of the cage. Connecting structure is disposed at the first end of the cage, where the connecting structure secures the first end of the cage to the panel. The cage is suitably dimensioned to receive and retain a portion of an optical module within the enclosure when the optical module is inserted within the opening at the first end of the cage.

A method includes mapping, by an optical transceiver, a received first OTU4 signal to a first FlexO frame without interleaving the first OTU4 signal into an ODUC signal prior to mapping the first OTU4 signal to the first FlexO frame. The method also includes communicating, by the optical transceiver, the first FlexO frame with the mapped first OTU4 signal to a coherent DSP over a first FOIC.

Optical transceiver with direct OTU4 mapping

A first network element includes trail trace identifier information in an optical network frame. The first network element obtains data to transmit over an optical network link to a second network element. The first network element generates an optical network frame with alignment marker bytes, which are followed by padding bytes. The optical network frame also includes overhead bytes following the padding bytes. The overhead bytes include a Multi-Frame Alignment Signal (MFAS) byte, a link status byte, and reserved bytes. The optical network frame also includes a payload bytes following the overhead bytes. The payload bytes encode at least a portion of the data to transmit to the second network element. The first network element inserts trail trace identifier information into the reserved bytes in the overhead bytes. The trail trace identifier information identifies the first network element as a source of the optical network frame.

Access point identifiers in 400ZR and 400ZR+ protocols

A method includes detecting, by a hardware processor and over a universal serial bus (USB) Type-A connection, whether a client controller is present in a client device. The method also includes supplying power to the client device over the USB Type-A connection by selecting between one of a first power source or a second power source depending on whether the client controller is detected.

USB type-A power extension to support high power modules

In one embodiment, a method includes detecting reverse rotation of a fan inserted into a modular electronic system comprising at least one other fan, wherein the reverse rotation of the fan is caused by a back pressure generated by the other fan rotating in a forward direction, applying current pulses to stop reverse rotation of the inserted fan and start rotation of the fan in a forward direction, and operating all of the fans with rotation in the forward direction.

Method and system for preventing or correcting fan reverse rotation during online installation and removal

An apparatus comprises an Ethernet port including high-side transformers and low-side transformers. High-side current paths supply high-side currents form a high voltage rail to high-side center taps of the high-side transformers. Low-side current paths supply or do not supply low-side currents from a low voltage rail to low-side center taps of the low-side transformers, and convert the low-side currents to sense voltages. A controller configures the low-side current paths to either supply or not supply the low-side currents to the low-side center taps when none of the sense voltages exceed a voltage threshold representative of an overcurrent threshold or when at least one of the sense voltages exceeds the voltage threshold, respectively. A current monitor injects additional current into the low-side current paths only when at least one of the high-side currents exceeds the overcurrent threshold.

Virtualized chassis with power-over-ethernet for networking applications

In one embodiment, as apparatus includes a cable identifier for attachment to a plug and cable assembly operable to deliver Power over Ethernet (PoE) at a power greater than 90 watts, the plug and cable assembly receivable in a receptacle delivering the PoE. The cable identifier is configured for mating with the receptacle and includes an electrical identifier for use in identifying a power rating of the cable when the plug and cable assembly is inserted into the receptacle. A method and network device are also disclosed herein.

Cable power rating identification for power distribution over communications cabling

In one embodiment, a method includes transmitting Power over Ethernet (PoE) in a PoE distribution system at a power greater than 100 watts, the distribution system comprising at least two pairs of wires, monitoring a thermal condition in the distribution system, periodically checking each of the wires for a fault, and checking for an electrical imbalance at the wires. An apparatus is also disclosed herein.

Method and apparatus for detecting wire fault and electrical imbalance for power over communications cabling

In one embodiment, as apparatus includes a quick release system for installation of a module of a network communications system in a rack and removal of the module from the rack, the quick release system comprising a rack bracket for attachment to the rack, the rack bracket comprising a ground lug for providing a ground connection, and a module bracket for attachment to the module, the module bracket comprising a thumb screw for securely connecting the module bracket to the rack bracket. A method for installing the module on the rack is also disclosed herein.

Quick release for online insertion and removal of a module in a distributed network system

Virtualized chassis with power-over-Ethernet for networking applications

A system for transmitting data to a first circuit that transmits and receives data at a first rate from a second circuit that transmits data at second rate that is greater than the first rate. This invention includes an interface that transmits pause frames to the second circuit in response to an event in order to halt transmission from the second circuit to the first circuit. The second circuit then halts transmitting data until a message to resume transmission is received.

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Gallarate, Italy

Paolo Sironi