[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
> [forwarded from elsewhere]
> > [From Data Communications, January 1993]
> > INVENTION CUTS CABLING TIES
> > An inventor working from a garden shed in the U.K. has come up with a device
> > that enables PCs and other LAN equipment to send and receive data through
> > the plastic outer jacket of copper LAN cabling-- without piercing the
> > cabling. Called the Watsonlinc Cable Coupling Transformer, the device
> > allows users to attach LAN equipment at any point in a network without going
> > through time-consuming and costly cable attachment procedures. The
> > Watsonlinc, which must be placed directly next to a cable's outer jacket,
> > uses a proprietary technique to reduce noise interference while picking up
> > and transmitting data signals. Watsonlinc-equipped network interface cards
> > (NICs) will appear in the next 12 months, according to inventor Mike Watson
> > (Walton-on-Thames, U.K.), who says the device's production cost of about $5
> > per unit will not significantly increase NIC sticker prices. The Watsonlinc
> > works with both shielded and unshielded twisted-pair copper cabling, is
> > small enough to fit on laptop PC internal adapters, and is capable of
> > handling all common LAN speeds, Watson says. The internationally patented
> > invention works just as well with voice signals. Predictably, it already
> > has been licensed for use in telephone surveillance equipment.
Mike Watson rediscovers inductance, and the inductive tap.
Film at 11.