Abstract: A header assembly includes a header housing having a header cavity. The header assembly includes header signal contacts received in corresponding signal contact channels having mating ends arranged in the header cavity for mating with the receptacle assembly. The header assembly includes header ground contacts received in corresponding ground contact channels. Each header ground contact includes shield walls forming a shield cavity receiving header signal contacts to provide electrical shielding for the header signal contacts. The shield walls include an end wall extending between first and second side walls. Each header ground contact includes a mating protrusion that extends outward relative to the shield cavity from the corresponding shield wall. The mating protrusion is configured to engage a conductive insert of the receptacle assembly used to electrically common each of the header ground contacts.

Abstract: A contact module includes a leadframe having signal contacts arranged in pairs. Each signal contact includes a lead having sides extending between inner and outer edges. The contact module includes a dielectric frame supporting the leadframe having a first side and a second side with windows extending through the dielectric frame between the first side and the second side. The windows exposing to air the sides, the inner edges and the outer edges of the corresponding leads along a majority of lengths of the leads. The contact module includes a shield structure having a first ground shield at the first side and a second ground shield at the second side to provide electrical shielding for the signal contacts.

Abstract: An electrical connector includes a front housing having a front and a rear. The front housing is configured to hold signal contacts and has a cavity at the rear. The front is configured to be mated with the mating connector. A conductive insert is received in the cavity. The conductive insert includes end walls and cross walls extending between the end walls. The conductive insert includes channels between the cross walls configured to receive ground shields used to provide electrical shielding for the signal contacts. The cross walls are configured to be electrically coupled to the corresponding ground shields. The conductive insert is configured to electrically couple each of the ground shields.

Abstract: A method includes creating a publisher configured to send messages over a channel having a shared memory. The method includes creating at least one subscriber configured to receive the messages over the channel by sequentially referencing memory slots of the plurality of memory slots. The method includes determining that the next sequential memory slot is currently referenced by a subscriber. The method includes delaying sending the message by the publisher based on determining that the next sequential memory slot is currently referenced by the subscriber. The method includes receiving an event trigger indicative of message reading by the subscriber. The method includes, responsive to receiving the event trigger, determining that the next sequential memory slot is not currently referenced. The method includes sending the message to the next sequential memory slot based on determining that the next sequential memory slot is not currently referenced.

Abstract: A contact module includes a dielectric holder holding signal contacts having mating portions extending forward of the dielectric holder. A shield structure is coupled to the dielectric holder providing electrical shielding for the signal contacts. The shield structure has first and second ground shields having corresponding mating portions extending forward of the mating end of the dielectric holder. The shield structure has ground blades extending between the first and second ground shields having mating portions extending forward of the mating end of the dielectric holder at least one of above or below the mating portions of the signal contacts. The ground blades electrically connect the mating portions of the first ground shield and the mating portions of the second ground shield immediately forward of the mating end of dielectric holder.

Abstract: A contact module includes a leadframe having signal contacts arranged in pairs. Each signal contact includes a lead having sides extending between inner and outer edges. The contact module includes a dielectric frame supporting the leadframe having a first side and a second side with windows extending through the dielectric frame between the first side and the second side. The windows exposing to air the sides, the inner edges and the outer edges of the corresponding leads along a majority of lengths of the leads. The contact module includes a shield structure having a first ground shield at the first side and a second ground shield at the second side to provide electrical shielding for the signal contacts.

Abstract: An electrical connector includes a housing and a plurality of conductors held within the housing. The conductors are configured to electrically connect to mating conductors of a mating connector. The conductors each extend a length between a mating end and a mounting end of the respective conductor. One or more of the conductors include a copper alloy core, a copper plating layer, and a protective outer layer. The copper plating layer surrounds the copper alloy core, and is composed of a different material than the copper alloy core. The protective outer layer is disposed on and surrounds the copper plating layer. The protective outer layer is composed of a non-conductive polymeric material.

Abstract: Techniques are provided for making data stored in channels of shared memory available across a communication network that couples multiple distinct processing units (e.g., of a robot). In various implementations, a channel may be established in shared memory of a first processing unit. A publisher process executing on the first processing unit may publish data to the channel, and a remote subscriber process executing on a second processing unit may subscribe to the channel. A persistent network connection over a communication network may be established between the first and second processing units. Data published to the channel by the publisher process may be read directly from the local memory of the first processing unit by or on behalf of one or more local subscriber processes, and may be transmitted over the communication network to the remote subscriber process using the persistent network connection.

Abstract: An electrical connector includes a front housing and a contact module received in a cavity of the front housing having a frame assembly including a dielectric holder holding signal contacts. Each signal contact has a mating end and a terminating end. A ground shield is coupled to the dielectric holder for shielding the signal contacts. The ground shield has a ground pad at the mating end, mating beams extending from the ground pad for mating with corresponding header ground shields of a header connector and ground beams between corresponding mating beams for mating with corresponding header ground shields.

Abstract: An electrical connector includes a front housing having a front configured to be mated with a header connector and a rear having a cavity. The electrical connector includes a conductive insert received in the cavity including end walls and cross walls extending between the end walls. The conductive insert includes channels between the cross walls receiving header ground shields of the header connector. The cross-walls include protrusions extending into the channels each having a mating interface engaging the header ground shields. The conductive insert electrically couples each of the header ground shields of the header connector.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a user interface for enforcement of shipping rules. In one aspect, a method includes accessing regulation information/data, the regulation information/data being a multi-level hierarchy of nodes arranged in a tree structure, each node specifying one or more keywords, wherein the nodes comprise one or more starting nodes having one or more child nodes and having no parent nodes, one or more intermediate nodes having at least one of a child node and a parent node, and one or more end nodes having at least one parent node and no child nodes. Determining, that a particular keyword from the received one or more keywords matches a keyword of a node in the hierarchy. Determining, a level and a type of the node in the hierarchy, wherein the type of the node specifies whether the node is one of a starting node, an intermediate node, and an end node.

Abstract: An electrical connector includes a front housing having a front and a rear. The front housing is configured to hold signal contacts and has a cavity at the rear. The front is configured to be mated with the mating connector. A conductive insert is received in the cavity. The conductive insert includes end walls and cross walls extending between the end walls. The conductive insert includes channels between the cross walls configured to receive ground shields used to provide electrical shielding for the signal contacts. The cross walls are configured to be electrically coupled to the corresponding ground shields. The conductive insert is configured to electrically couple each of the ground shields.

Abstract: A contact module includes a dielectric holder holding signal contacts having mating portions extending forward of the dielectric holder. A shield structure is coupled to the dielectric holder providing electrical shielding for the signal contacts. The shield structure has first and second ground shields having corresponding mating portions extending forward of the mating end of the dielectric holder. The shield structure has ground blades extending between the first and second ground shields having mating portions extending forward of the mating end of the dielectric holder at least one of above or below the mating portions of the signal contacts. The ground blades electrically connect the mating portions of the first ground shield and the mating portions of the second ground shield immediately forward of the mating end of dielectric holder.

Abstract: An electrical connector includes a front housing and a contact module received in a cavity of the front housing having a frame assembly including a dielectric holder holding signal contacts. Each signal contact has a mating end and a terminating end. A ground shield is coupled to the dielectric holder for shielding the signal contacts.

Abstract: An electrical connector includes a front housing having a front configured to be mated with a header connector and a rear having a cavity. The electrical connector includes a conductive insert received in the cavity including end walls and cross walls extending between the end walls. The conductive insert includes channels between the cross walls receiving header ground shields of the header connector. The cross-walls include protrusions extending into the channels each having a mating interface engaging the header ground shields. The conductive insert electrically couples each of the header ground shields of the header connector.

Abstract: Electrical contact includes a base portion and a mating portion having a leading end of the electrical contact. The mating portion includes a contact finger coupled to the base portion and extends between the base portion and the leading end. The contact finger has an engagement surface that is shaped to define a primary contact zone. The electrical contact also includes a resonance-control protrusion shaped to define a stub-contact zone. The stub-contact zone is positioned at the base portion or between the base portion and the primary contact zone. The primary contact zone and the stub-contact zone are configured to engage another contact. The stub-contact zone is configured to impede electrical resonance along a stub portion of the other contact.

Abstract: A contact module includes a dielectric holder holding signal contacts having mating portions extending forward of the dielectric holder. A shield structure is coupled to the dielectric holder providing electrical shielding for the signal contacts. The shield structure has first and second ground shields having corresponding mating portions extending forward of the mating end of the dielectric holder. The shield structure has ground blades extending between the first and second ground shields having mating portions extending forward of the mating end of the dielectric holder at least one of above or below the mating portions of the signal contacts. The ground blades electrically connect the mating portions of the first ground shield and the mating portions of the second ground shield immediately forward of the mating end of dielectric holder.

Abstract: An electrical connector assembly includes a housing having a cavity receiving a stack of contact modules each having a dielectric holder having first and second sides extending between a front and a rear and extending between a top and a bottom. Each contact module includes signal contacts having mating portions and mounting portions extending from the bottom for termination to a circuit board. The dielectric holder includes a press tab extending from the first side proximate to the bottom having press surface pressed downward by a seating tool to press the electrical connector assembly on the circuit board proximate to the bottom of the dielectric holder to seat the mounting portions in vias in the circuit board.

Abstract: A contact module includes a dielectric holder having first and second sides extending between a mating end and a mounting end. The contact module includes signal contacts held by the dielectric holder along a contact plane. The contact module includes a first ground shield coupled to the first side of the dielectric holder and providing electrical shielding for the signal contacts and a second ground shield coupled to the second side of the dielectric holder and providing electrical shielding for the signal contacts, the ground shield having skewer openings. The contact module includes ground skewers having posts extending from the first ground shield through the dielectric holder. The posts are electrically connected to the first ground shield and extend into corresponding skewer openings of the second ground shield to electrically connect the first ground shield to the second ground shield.

Abstract: A contact module includes a dielectric holder holding signal contacts having mating portions extending forward of the dielectric holder. A shield structure is coupled to the dielectric holder providing electrical shielding for the signal contacts. The shield structure has first and second ground shields having corresponding mating portions extending forward of the mating end of the dielectric holder. The shield structure has ground blades extending between the first and second ground shields having mating portions extending forward of the mating end of the dielectric holder at least one of above or below the mating portions of the signal contacts. The ground blades electrically connect the mating portions of the first ground shield and the mating portions of the second ground shield immediately forward of the mating end of dielectric holder.