An LED (light emitting diode) panel. In particular, an LED panel that is part of a modular system used to construct a wall mounted LED video screen. An LED panel includes a chassis and an LED tile including a plurality of surface mount devices attached thereto. The LED tile is removably mounted to a front of the chassis, and further includes: a first power connector and a first data connector; and a connector assembly mounted on the chassis. The connector assembly includes a support board; a second power connector; a second data connector; and a biasing member arranged to urge the support board in a direction towards the front of the chassis, such that the second power connector and second data connector engage with the first power connector and first data connector, respectively.

Cable backplane systems and communication devices are provided according to examples of the present disclosure. In one aspect, a cable backplane system includes a frame and a cable unit; the cable unit includes a first connector array, a second connector array and communication cables; the first connector array is fixed on the frame, wherein a first connector in the first connector array is connected with a first plug-in card, first connectors in a same row are connected with a same first plug-in card; the second connector array is fixed on the frame, wherein a second connector in the second connector array is connected with a second plug-in card, second connectors in a same column are connected with a same second plug-in card; and the communication cables is connected with the first connector array and the second connector array.

Cable backplane systems and communication devices are provided according to examples of the present disclosure. In one aspect, a cable backplane system includes a frame and a cable unit; the cable unit includes a first connector array, a second connector array and communication cables; the first connector array is fixed on the frame, wherein a first connector in the first connector array is connected with a first plug-in card, first connectors in a same row are connected with a same first plug-in card; the second connector array is fixed on the frame, wherein a second connector in the second connector array is connected with a second plug-in card, second connectors in a same column are connected with a same second plug-in card; and the communication cables is connected with the first connector array and the second connector array.

Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a modular defibrillator architecture is described. A base unit provides a fully functional defibrillator. The functionality of the base unit can be supplemented by attaching an interface unit to the base unit or by connecting a smartphone the base unit. Such devices provide connectivity as well as a screen for displaying supplementary graphics and/or videos which are useful to support both emergency and maintenance & monitoring activities. In some embodiments a battery pack may also or alternatively be coupled to the base unit to prolong the unit's shelf life before recharging or replacement of its batteries is required. If necessary the base unit can be powered from a connected external device such as a mobile communication device.

Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a modular defibrillator architecture is described. A base unit provides a fully functional defibrillator. The functionality of the base unit can be supplemented by attaching an interface unit to the base unit or by connecting a smartphone the base unit. Such devices provide connectivity as well as a screen for displaying supplementary graphics and/or videos which are useful to support both emergency and maintenance & monitoring activities. In some embodiments a battery pack may also or alternatively be coupled to the base unit to prolong the unit's shelf life before recharging or replacement of its batteries is required. If necessary the base unit can be powered from a connected external device such as a mobile communication device.

An expansion device includes a supporting base and a hub. The supporting base includes a bottom portion, a supporting portion, and an electrical connection port. The supporting portion is connected to the bottom portion and has an insert slot. The electrical connection port is disposed at the bottom portion. The hub is slidably disposed within the supporting portion and is located between the bottom portion and the insert slot. The hub includes a first electrical connection element and a second electrical connection element facing away from the first electrical connection element. The first electrical connection element is electrically connected to the electrical connection port, and the second electrical connection element extends into the insert slot. Another expansion device is also provided.

An expansion device includes a supporting base and a hub. The supporting base includes a bottom portion, a supporting portion, and an electrical connection port. The supporting portion is connected to the bottom portion and has an insert slot. The electrical connection port is disposed at the bottom portion. The hub is slidably disposed within the supporting portion and is located between the bottom portion and the insert slot. The hub includes a first electrical connection element and a second electrical connection element facing away from the first electrical connection element. The first electrical connection element is electrically connected to the electrical connection port, and the second electrical connection element extends into the insert slot. Another expansion device is also provided.

A quick installed autonomous traffic and pedestrian crossroad signaling system employing a mechanical support wire spanning between at least two structural support points, and an electrified wire with a plurality of hub receptacles running alongside the mechanical support wire whereas electrified devices are coupled to the hub receptacles.

A quick installed autonomous traffic and pedestrian crossroad signaling system employing a mechanical support wire spanning between at least two structural support points, and an electrified wire with a plurality of hub receptacles running alongside the mechanical support wire whereas electrified devices are coupled to the hub receptacles.

A socket for allowing a threaded light bulb or a bayonet light bulb to be quickly and effectively inserted into and removed from the socket by axial force, avoiding the need for it to threaded by rotational forces within the socket to achieve connectivity. The socket includes a bulb interface including a plurality of flanges for cooperating with a bulb having a threaded base and/or a bayonet base.