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Control Channel Locations

Why Do X-10 Devices Turn Off Then On?

A limitation of X-10 is devices can not be "polled" to determine their current state. Almost all X-10 wall switches

are only receivers, therefore, if a user manually dims or turns a light off, the controller has no manner to determine

if the light is on or off. A second limitation of the X-10 protocol is that a dimmed light will not respond to a unit

"on" command by going to full on. Therefore, until units begin to respond to the "preset dimming" section of the X-

10 specification, a user can not dim a light from the phone or keypad to a specific dim level unless an off

command precedes a unit "on" command. This ensures any of the following dim commands will match the level

spoken by the system. This same issue affects the implementation of the preset dim command. This feature sends

an off command followed by the appropriate dim command to arrive at the programmed dim level.

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AMX APEX Destiny 6100 Dokumentacja Strona 70