Abstract: High-speed pluggable rigid-end flex circuit. A circuit includes a flexible section, rigid section, connector disposed on the rigid section, and electrically conductive signal transmission line electrically coupled to the connector. The flexible section includes a first portion of a flexible insulating layer. The rigid section includes a second portion of the flexible insulating layer and a rigid insulating layer disposed on the second portion of the flexible insulating layer. The connector is configured to form a pluggable conductive connection. The electrically conductive signal transmission line includes a first signal trace having a root mean square surface roughness below 20 micrometers and a filled signal via configured to pass through at least a portion of the rigid insulating layer. The flexible and rigid insulating layers have a dissipation factor equal to or below a ratio of 0.004 and a dielectric constant equal to or below a ratio of 3.7.

Abstract: High-speed pluggable rigid-end flex circuit. A circuit includes a flexible section, rigid section, connector disposed on the rigid section, and electrically conductive signal transmission line electrically coupled to the connector. The flexible section includes a first portion of a flexible insulating layer. The rigid section includes a second portion of the flexible insulating layer and a rigid insulating layer disposed on the second portion of the flexible insulating layer. The connector is configured to form a pluggable conductive connection. The electrically conductive signal transmission line includes a first signal trace having a root mean square surface roughness below 20 micrometers and a filled signal via configured to pass through at least a portion of the rigid insulating layer. The flexible and rigid insulating layers have a dissipation factor equal to or below a ratio of 0.004 and a dielectric constant equal to or below a ratio of 3.7.

Abstract: A central tire inflation system for a steering knuckle wheel end assembly providing a steering knuckle secured to the vehicle, and a wheel end hub rotatably mounted about the steering knuckle. A bearing assembly is disposed between the steering knuckle and wheel end hub to establish the rotatably connection. A drive shaft is rotatably disposed through the steering knuckle and is in driving connection with the wheel end hub. A pair of adjacent rotary seals are disposed between the wheel end hub and steering knuckle and defining a small chamber there between. An inlet passage is formed directly through the steering knuckle in communication with the sealed chamber. The inlet passage transmits pressurized air from a pressurized air source directly to the sealed chamber. An outlet passage is formed directly through the wheel end hub and is also in direct communication with the sealed chamber to establish communication between the wheel end hub and the steering knuckle.