Can 2 USB hosts be connected to each other

USB hubs - application, variants, manufacturers

A hub is a node or a distributor in a network or in the case of the Universal Serial Bus (USB). In networks, hubs are used to connect individual clients (PCs) or other hubs with one another. A USB hub is a distributor that simply forwards the USB signal to additional ports.

To save power, hardware and computing power, USB hubs have six or eight downstream ports that can be individually selected or switched off. This means that several complex devices can also be controlled individually via these intelligent subsystems.


USB hub 2.0 6-port, switchable

USB hub 2.0 6-port, switchable

The hub can be operated alone on the USB host (bus-powered) or additionally with a 5 VDC power supply unit with at least 16 W output power or 3.2 A output current (self-powered), which equates to 500 mA output current on each USB Socket is sufficient, which means that the ports can be used both as connection and charging ports. A power supply unit with 5.2 A (26 W) is required for the maximum output current of 5 A (not included). The detection and switching between bus and self-powered takes place automatically.

This USB hub has six USB 2.0 downstream interfaces that can be switched on and off individually via software. When switching off, the supply voltage (+5 V) and the data lines are separated via semiconductor switches. It is controlled via the Toolmonitor USB hub, which is included in the scope of delivery via an enclosed USB memory card, or alternatively via ASCII commands. Whether and which ports are active after switching on can be configured and saved. The USB 2.0 host port is usually also used to control the USB hub. Alternatively, the control can also take place via another host at the additional USB 2.0 port on the rear. In addition to this control via USB, the interfaces can alternatively also be switched on and off via external control inputs.

USB hubs 3.0 8-port, switchable

Active USB hubs