A relay assembly comprises a vital relay used in a vital circuit and configured to be rack-installed in an equipment room in a railroad case or a railroad housing for providing a modular solid-state current-limiting. The relay assembly further comprises a plurality of vital relay contacts to which a current flow is restricted by a single supply solid-state current limiter. The relay assembly further comprises a relay socket base assembly coupled to the vital relay. The relay socket base assembly includes a relay socket base including a plurality of vital relay contact prongs, a plug assembly including a plurality of printed circuit board (PCB) mounted contact terminals, and a plurality of contact terminals that provide a connection between the plurality of vital relay contact prongs and the plurality of printed circuit board (PCB) mounted contact terminals. The relay assembly further comprises an ancillary electrical control module.

A carrier module assembly having a module removably attached to a carrier frame and a carrier riser. The carrier module assembly can be inserted into a slot of a control cabinet without having to re-wire or re-configure the control cabinet. The carrier module assembly has a length which enables the carrier module assembly to be located within the slot of the control cabinet. The module is removable from the carrier frame such that the module can be attached to a backplate of a rack.

A relay assembly comprises a vital relay used in a vital circuit and configured to be rack-installed in an equipment room in a railroad case or a railroad housing for providing a modular solid-state current-limiting. The relay assembly further comprises a plurality of vital relay contacts to which a current flow is restricted by a single supply solid-state current limiter. The relay assembly further comprises a relay socket base assembly coupled to the vital relay. The relay socket base assembly includes a relay socket base including a plurality of vital relay contact prongs, a plug assembly including a plurality of printed circuit board (PCB) mounted contact terminals, and a plurality of contact terminals that provide a connection between the plurality of vital relay contact prongs and the plurality of printed circuit board (PCB) mounted contact terminals. The relay assembly further comprises an ancillary electrical control module.

An electrical connector for electrically connecting a chip module includes an insulating body, a signal terminal received in the insulating body, and a first and a second shielding sheets retained in the insulating body. The insulating body sustains a chip module, and the signal terminal elastically urges against the chip module. The first shielding sheet is located on one side of the signal terminal and elastically urges the chip module. The second shielding sheet is located on the other side of the signal terminal, and adjacent to the first shielding sheet. The first and second shielding sheets are communicated through an electric conductor. The second shielding sheet does not urge the chip module.

A clamping component is provided to clamp a chip module, which has a circuit board and a protruding portion protruding upward from an upper surface thereof. In a left-right direction, a width of a first region from a left side of the circuit board to a left side of the protruding portion is greater than that of a second region from a right side of the circuit board to a right side of the protruding portion. Two abutting surfaces respectively abut the left and the right sides of the circuit board. A stopping block is located at a left side of an opening, and extends rightward to the left side of the protruding portion and beyond the left side of the circuit board. When the chip module is installed in the clamping component and the circuit board abuts the abutting surfaces, the stopping block is located above the first region.

A clamping component is provided to clamp a chip module, which has a circuit board and a protruding portion protruding upward from an upper surface thereof. In a left-right direction, a width of a first region from a left side of the circuit board to a left side of the protruding portion is greater than that of a second region from a right side of the circuit board to a right side of the protruding portion. Two abutting surfaces respectively abut the left and the right sides of the circuit board. A stopping block is located at a left side of an opening, and extends rightward to the left side of the protruding portion and beyond the left side of the circuit board. When the chip module is installed in the clamping component and the circuit board abuts the abutting surfaces, the stopping block is located above the first region.

An electrical connector for electrically conducting a chip module includes an insulating body, a signal terminal received in the insulating body, and a first and a second shielding sheets retained in the insulating body. The insulating body sustains a chip module, and the signal terminal elastically urging against the chip module. The first shielding sheet is located on one side of the signal terminal and elastically urging the chip module. The second shielding sheet is located on the other side of the signal terminal, and adjacent to the first shielding sheet. The first and second shielding sheets are communicated through an electric conductor. The second shielding sheet does not urge the chip module.

A carrier module assembly having a module removably attached to a carrier frame and a carrier riser. The carrier module assembly can be inserted into a slot of a control cabinet without having to re-wire or re-configure the control cabinet. The carrier module assembly has a length which enables the carrier module assembly to be located within the slot of the control cabinet. The module is removable from the carrier frame such that the module can be attached to a backplate of a rack.

A removable module, a system and a method. The removable module comprising a PCB having an OCP NIC form factor, an OCP edge connector comprising a plurality of pins on an edge of the PCB, wherein the OCP edge connector is configured to mate with an OCP board connector of a primary system board of the computing system in an installed state of the removable module in the computing system, a NIC chip mounted to the PCB and communicably connected to the OCP edge connector, at least one communication port mounted to the PCB and communicably connected to the NIC chip and a first PCIe slot mounted on the PCB and communicably connected to the OCP edge connector, wherein the NIC chip and the first PCIe slot are configured to be communicably connected to the primary system board via the OCP edge connector.

A removable module, a system and a method. The removable module comprising a PCB having an OCP NIC form factor, an OCP edge connector comprising a plurality of pins on an edge of the PCB, wherein the OCP edge connector is configured to mate with an OCP board connector of a primary system board of the computing system in an installed state of the removable module in the computing system, a NIC chip mounted to the PCB and communicably connected to the OCP edge connector, at least one communication port mounted to the PCB and communicably connected to the NIC chip and a first PCIe slot mounted on the PCB and communicably connected to the OCP edge connector, wherein the NIC chip and the first PCIe slot are configured to be communicably connected to the primary system board via the OCP edge connector.