An electronic unit attaching structure includes an electronic unit (30) having a plurality of connector connection portions (33, 34) and an electronic unit attachment (20) having a plurality of connectors (C1, C2) correspond to the plurality of the connector connection portions. The electronic unit attaching structure is configured to allow first connection and second connection in this order when the electronic unit (30) is attached to the electronic unit attachment (20). The first connection is a connection of first part (C2) of the plurality of the connectors with first part (34) of the plurality of the connector connection portions. The second connection is a connection of second part (C1) of the plurality of the connectors with second part (33) of the plurality of the connector connection portions.

An electrical connector is provided for both power and data transmission. The electrical connector comprises an electrical plug (100) having a plurality of pins (131138) and an electrical socket (200) having a plurality of passageways (220) which are arranged corresponding to the plurality of pins (131138). The pins (131138) of the plug comprise at least one signal pin (131, 136), two or more positive power pins (133, 134) and two or more negative power pins (132, 135). The pins (131138) of the plug can be disposed such that the positive power pins (133, 134) and the at least one signal pin (131, 136) are positioned on opposite sides of the negative power pins (132, 135).

An electrical connector assembly including a first connector and a second connector to be mated with each other is provided. The first connector includes a first body, and at least one first terminal and multiple second terminals disposed therein. The second terminals are symmetrically arranged at opposite sides of the first terminal. The second connector includes a second body, at least one third terminal movably disposed in the second body, multiple fourth terminals disposed in the second body and symmetrically arranged at opposite sides of the third terminal, and a driving module electrically connected to at least one of the fourth terminals and structurally connected to the third terminal. In the mating process of the first and second connector, the second terminals and the fourth terminals are electrically connected firstly, to trigger the driving module to move the third terminal to be structurally and electrically connected to the first terminal.

The present invention generally relates to the field of telecommunication, and more particularly, to the field of connectors such as plugs and/or jacks used to interconnect electronic equipment. In an embodiment, the present invention is a shielded RJ45 network jack with an inter-jack connection method that has an electrical disengagement point outside of any electrical mating points, while still allowing for a relatively short distance to compensation from the plug/jack mating interface.

A printing material container detachably attachable to a printing apparatus having apparatus-side terminals. The container can comprise an electrical device, a memory device and a plurality of terminals. First and second terminals can be coupled to the electrical device and a plurality of memory terminals can be coupled to the memory device. Terminal contact portions are present where the terminals contact a respective apparatus side contact forming member. A short detection contact portion can be positioned to contact a contact forming member that itself is coupled to a short detection circuit of the printing apparatus. The terminals can be arranged with the memory terminal contact portions located to the left of the second terminal contact portion and to the right of the first terminal contact portion. The contact portion that is second farthest to the right can be the third contact portion.