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August 31, 2026 4 min read
Installation manual for the X10 XPT Transmitter Base, a wall-box keypad transmitter that accepts interchangeable X10 keypad covers (XP1, XP2, XP4, etc.).
Installation instructions for the X10 XPT Transmitter Base — a wall-box-mounted X10 wireless keypad base (transmitter only, does not switch loads) that accepts a variety of plug-on X10 keypad covers for customized room/scene control.
The XPT Transmitter Base mounts in a standard single-gang wall box and accepts an interchangeable Keypad cover, letting each installation be customized to the number of buttons and functions needed. The XPT itself does not switch any loads — it only transmits X10 commands to receiver modules elsewhere in the house.
Note: If controlling only one device (as with an XP1 Keypad), the Unit Code you set is the unit number transmitted. If using an XP4 Keypad, the first command uses the unit number the XPT is set to, and the next three commands use the sequentially following unit numbers.
Note: The XPT automatically monitors the power line for noise and other signal transmissions and will not transmit until the line is clear.
Place the desired Keypad cover onto the XPT Base by inserting the tab on top of the Keypad under the notch on the XPT Base. Gently press the bottom of the Keypad into place so the pins on the back of the Keypad insert into the XPT Base socket.
| Model | Description |
|---|---|
| XP1 | 1 button, 1 address, On/Off |
| XP1A | 1 button, 1 address, All Lights On/All Units Off |
| XP2 | 2 button, 2 address, On/Off |
| XP2D | 2 button, 1 address, On/Off and Bright/Dim |
| XP4 | 4 button, 4 address, On/Off |
| XP4D | 4 button, 3 address, On/Off and Bright/Dim |
| XP4A | 4 button, 3 address, On/Off and All Lights On/All Units Off |
X10 Wireless Technology, Inc. Limited 90-Day Warranty: X10.com warrants X10 products free from defective material and workmanship for 90 days from the original retail purchase date. X10 will repair or replace, at its sole discretion, a defective product returned within the warranty period with proof of purchase.
If service is required:
Complete online warranty registration at www.x10.com/warranty.
X10 Wireless Technology, Inc., 400 Forge Way, Suite 409-412, Rockaway, NJ 07866
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