A power distribution system includes a panel assembly that has an outer surface and two conductive structures spaced from each other and spanning beneath the outer surface. An application module is configured to engage one of a plurality of locations disposed over the outer surface of the panel assembly. The application module includes a first contact configured to engage the first conductive structure and a second contact configured to engage the second conductive structure. The second contact is electrically insulated from the first contact and the first conductive structure for the panel assembly to deliver low voltage power to the engaged application module.

A base station interface device including an interface board, which is located in a housing and determines an upper portion of a first surface as a first mounting location and an upper portion of a second surface opposite to the first surface as a second mounting location, including a relay connector wherein one end is exposed to the upper portion of the first surface and the other end is exposed to the upper portion of the second surface; a base station signal matching unit mounted on the first mounting location and including a first connector coupled to the one end of the relay connector; and a base station signal processing unit mounted on the second mounting location and including a second connector coupled to the other end of the relay connector.

A modular electrical bus system for a valve manifold has a communication module, a valve driver module, and a plurality of I/O modules each having a plurality of I/O fittings being both electrically and mechanically connectable together via a bridge member connecting adjacent modules. The bridge member has a housing with an interior for housing electronic components for memory storage or Wi-fi reception and transmission that is operably connected to a complementary electrical fitting constructed to be connected to an electrical fitting of a module of said electrical fieldbus system without adding extra length to said bank of modules of said electrical fieldbus system.

A modular electrical bus system for a valve manifold has a communication module, a valve driver module, and a plurality of I/O modules each having a plurality of I/O fittings being both electrically and mechanically connectable together via a bridge member connecting adjacent modules. The bridge member has a housing with an interior for housing electronic components for memory storage or Wi-fi reception and transmission that is operably connected to a complementary electrical fitting constructed to be connected to an electrical fitting of a module of said electrical fieldbus system without adding extra length to said bank of modules of said electrical fieldbus system.

A remote switch device can be attached to a mounting interface for firearm accessories, such as a Picatinny rail interface, and used to operate power-consuming firearm accessories (e.g., an illumination device, a laser aiming module, etc.) connected thereto by a suitably configured flexible cable, or wireless transceiver. An example remote switch device comprises: a housing configured to engage with a mounting interface for firearm accessories; a first switch configured to operate at least one connected power-consuming firearm accessory, the first switch includes a force sensing resistor; and a cable or wireless transceiver configured to connect the first switch to at least one power-consuming firearm accessory. The first switch is positioned substantially parallel to the mounting interface for firearm accessories while the housing is secured thereto.

A remote switch device can be attached to a mounting interface for firearm accessories, such as a Picatinny rail interface, and used to operate power-consuming firearm accessories (e.g., an illumination device, a laser aiming module, etc.) connected thereto by a suitably configured flexible cable, or wireless transceiver. An example remote switch device comprises: a housing configured to engage with a mounting interface for firearm accessories; a first switch configured to operate at least one connected power-consuming firearm accessory, the first switch includes a force sensing resistor; and a cable or wireless transceiver configured to connect the first switch to at least one power-consuming firearm accessory. The first switch is positioned substantially parallel to the mounting interface for firearm accessories while the housing is secured thereto.

A cable connection system and a method of forming the cable connection system. The cable connection system includes a base and a coupling mechanism. The base is configured to be coupled to a given cable. The given cable is configured to be connected to a given rack. The coupling mechanism is configured to couple the base with the given rack during a given connect mode of operation. The coupling mechanism includes a group of base connectors provided on a first surface of the base. The first surface is arranged to lie substantially flush with the given rack. The method includes: providing the base and coupling the coupling mechanism to the base.

A hand holdable light comprises: a light body having a forward portion, a rearward portion, and a central portion between the forward portion and to the rearward portion; a light source proximate a forward end; and a switch for energizing the light source. The rearward portion has a non-circular cross-section; the switch is on the forward portion; and the central portion has a recess opposite the switch. The light is holdable by a hand with a finger or thumb proximate the recess and the other of a finger or thumb proximate the switch. A battery assembly comprises: a battery housing for receiving and connecting a battery; an electrical switch on a first end of the battery housing; and a pattern of electrical contacts on a second end of the battery housing, wherein ones of the electrical contacts are connected to the battery.

A hand holdable light comprises: a light body having a forward portion, a rearward portion, and a central portion between the forward portion and to the rearward portion; a light source proximate a forward end; and a switch for energizing the light source. The rearward portion has a non-circular cross-section; the switch is on the forward portion; and the central portion has a recess opposite the switch. The light is holdable by a hand with a finger or thumb proximate the recess and the other of a finger or thumb proximate the switch. A battery assembly comprises: a battery housing for receiving and connecting a battery; an electrical switch on a first end of the battery housing; and a pattern of electrical contacts on a second end of the battery housing, wherein ones of the electrical contacts are connected to the battery.

A coaxial tap in a hybrid fiber coaxial cable distribution system serves subscribers with an RF signal.