X10 Modules

Name Technology Strengths Weaknesses
RF Transceiver module RR501, TWM751, etc Plugs in wall, receives RF signals from many devices, sends X10 signals through wall wiring. Has one switched outlet. Can cross circuits (service legs, UPS's, surge supressors), long range, can be controlled by many X10 RF devices (like the FireCracker) and remote controls. Can onlu control one house code, some can only control 8 unit codes instead of 16.
Lamp modules Plugs in wall, receives signals through wall wiring. Can be dimmed, responds to ALL LIGHTS ON/OFF signals. Only works with 120V incandescent lighting.
Appliance modules Plugs in wall, receives signals through wall wiring. Can control heavier loads with some inductance. Still has some current leakage, so some things with capacitance like strobes will not shut completely off.
"Socket Rocket" screw-in light module Screws into light socket, bulb screws into it, receives signals through wall wiring. No wiring, some have dusk/dawn sensor. May extend past shade.
PUM01 Universal Module Contact closure and beeper. Trips a device connected to the dry contact; rated at 24V DC. Optionally emits a notification beep. Allows you to control any device (lights, pumps, alarm systems) Limited to 24V, so another relay is needed for 120V control.

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