Abstract: An active device lid for a device base. The device lid includes a heatsink proximate to a circuit assembly and configured to remove heat generated by the device base, the circuit assembly configured to generate an operating signal voltage for the device base, and a connector configured to connect the circuit assembly to the device base, where the device base is configured to connect to a device mounting substrate on a substrate side of the device base, and where the circuit assembly is configured to be at least partially located on an opposing side of the device base, the opposing side opposing the substrate side.

Abstract: Time transfer systems and methods in Flexible Ethernet (FlexE) include, in a node supporting Flexible Ethernet (FlexE), communicating a FlexE group with an adjacent node via a FlexE shim; providing a synchronization message channel to the adjacent node via overhead of the FlexE shim for the FlexE group; and exchanging synchronization messages via the synchronization message channel with the adjacent node. The synchronization messages can be Precision Time Protocol (PTP) messages. A timestamp point for a synchronization message can be a start of a FlexE frame or multi-frame boundary.

Abstract: Time transfer systems and methods in Flexible Ethernet (FlexE) between a first node and a second node include detecting a timestamp point of reference in FlexE overhead and sampling a time based thereon; communicating samples of the timestamp point of reference between the first node and the second node; and determining a time delay between the first node and the second node based on the samples.

Abstract: An active device lid for a device base. The device lid includes a heatsink proximate to a circuit assembly and configured to remove heat generated by the device base, the circuit assembly configured to generate an operating signal voltage for the device base, and a connector configured to connect the circuit assembly to the device base, where the device base is configured to connect to a device mounting substrate on a substrate side of the device base, and where the circuit assembly is configured to be at least partially located on an opposing side of the device base, the opposing side opposing the substrate side.

Abstract: Time transfer systems and methods in Flexible Ethernet (FlexE) between a first node and a second node include detecting a timestamp point of reference in FlexE overhead and sampling a time based thereon; communicating samples of the timestamp point of reference between the first node and the second node; and determining a time delay between the first node and the second node based on the samples.

Abstract: A system and method for extending the reach of a data communication channel using flow control interception devices is described. The method decreases the latency-induced reduction in the data throughput and permits data transmission at subrates through the data communication channel. The method includes transmitting a data frame from a sending device. The data frame is transmitted through the data communication channel if a flow control signal is not asserted. The data frame is buffered if the flow control signal is asserted. The buffered data frame is transmitted through the data communication channel in response the flow control signal changing to an asserted state. The method also includes receiving the transmitted data frame from the data communication channel and transmitting the received data frame to a receiving device if the receiving device is available to process the data frame.