Abstract: An articulated wall mounted mechanical arm includes a swivel joint for attachment to a wall surface through a bracket. The swivel joint is formed with a central open-ended pass-through space which is dimensioned and configured to enable cabling (for example an electric cable) with a cable connector attached to pass through the space and enter a lengthwise extending open sided channel formed in an arm section of the mechanical arm. Removable covers and/or caps are provided selectively to close the open side of the channel and at least one open end of the pass-through space.

Abstract: A data input system includes a wireless keyboard and docking station, which can be connected to a computer system. When the keyboard and docking station are mechanically connected, the docking station is configured automatically to generate a new pairing code or key that is different to a previously-generated one. This new code/key is then transmitted back to the keyboard over a wireless control link and the keyboard and docking station then set up a paired data channel over which data from the keyboard is transmitted wirelessly to the docking station, and so the computer system. When a new mechanical connection is made, e.g. using the same or a different keyboard, the process repeats so that a new pairing code or key is generated, thus avoiding interference with other keyboard(s) that were previously paired with the same docking station.