X-10 Powerline

Az X-10 technológia a meglévő 230V-os hálózatot használja kommunikációs médiumként, így kiépítése utólagos kábelezést nem igényel. Angol nyelvű ismertető arról, hogy hogyan történik a kommunikáció az erősáramú hálózaton keresztül (az adatok az amerikai 60Hz-es hálózatra vonatkoznak):

X10 Powerline Carrier (PLC) Technology

X10 communicates between transmitters and receivers by sending and receiving signals over the power line wiring. These signals involve short RF bursts which represent digital information.

X10 powerline carrier transmissions are synchronized to the zero crossing point of the AC power line. The goal should be to transmit as close to the zero crossing point as possible, but certainly within 200 microseconds of the zero crossing point.

.

A Binary 1 is represented by a 1 millisecond burst of 120 kHz at the zero crossing point, and a Binary 0 by the absence of 120 kHz. These 1 millisecond bursts should equally be transmitted three times to coincide with the zero crossing point of all three phases in a three phase distribution system. Figure 1. shows the timing relationship of these bursts relative to zero crossing.

vissza