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Solution of the Week
KeypadLinc Signal Confirmation
With Smarthome KeypadLinc Controllers and 2-way enabled X10 products, you can now have true 2-way communications.
For years, a criticism of X10 has been the lack of 2-way communications. Most of the time, when the signal is sent, the originating transmitter has no idea if the signal made it to the receiver. If you think about it, this isn't too much of a big deal since the places you are sending the signal to and from have probably worked reliably dozen of times in the past. But, there's always that one time when the signals don't get to the receiver.
Using the confirmation feature in the KeypadLinc Controller, you can program it to follow up the commands with a Status Request signal to the receiver. Here's how it basically works:
KeypadLinc: LampLinc, turn ON!
KeypadLinc: LampLinc, what is your status?
LampLinc: I'm on and running at 78% brightness.
If the communications are successful, the KeypadLinc will illuminate the button. If the LampLinc didn't respond or the status was OFF, the button's indicator will turn off.
The confirmation feature is set in the KeypadLinc when the button is programmed. By sending a "DIM" or "OFF" command after the address (during programming), the KeypadLinc will follow all ON/OFF commands with Status Request signals.
| | | Toggle Mode Button Programming | |
In this step, it is necessary to send two signals to the keypad from a transmitter. The first transmission will contain the unit code address; the second will tell the KeypadLinc how the button is to behave.
1. Enter the Setup Mode by holding any two buttons for 5 seconds.
2. Press the button to be programmed.
3. Make sure the button is in the Toggled Mode by observing the button's indicator; it should be blinking. If it is not blinking, press the button a second time.
4. Send the first signal using a controller. The signal must be an address only; unit codes 1 to 16 without a command.
5. The second signal will set the button's mode:
| Command | Mode Explanation |
| BRIGHT | Button is for an Appliance Module (Non-Lamp) |
| ON | Button is for a Lamp or Wall Switch Module.
When the button is pressed and held, KeypadLinc sends BRIGHT and DIM signals on alternate presses. |
| DIM | Button is for an Appliance Module that can confirm its ON/OFF status.
KeypadLinc will send the ON or OFF command followed by a status request signal. The button's indicator will illuminate depending on the returned signal. If a device does not respond, the button's indicator will not charge. |
| OFF | Button is for a Lamp Module than confirm its ON/OFF status.
KeypadLinc will send the ON or OFF command followed by a stauts request signal. The button's indicator will illuminate depending on the returned siganl. If a device does not respond, the button's indicator will not change. When the button is pressed and held, it sends BRIGHT and DIM signals on alternate presses. |
UNIT
CODE
8 | Button is for triggering scenes in scene-enabled Smarthome products.
Sends ON/OFF signals on laternate button presses. If the button is pressed and held, it will aid in setting up scenes in SwitchLinc Wall Switches. |
The indicator light will turn off and the button is programmed.
 Most transmitters have only one button to press to send an address with either an ON or OFF signal. These units will limit the button mode to regular lamp module or a lamp module with status. Investing in a Maxi-Controller, (Smarthome #4020), will provide access to all five button modes.
Warning: before using confirmation, make sure the module being controlled is capable of sending STATUS ON/OFF signals (also called Status Request). If it cannot, the KeypadLinc indicator will not correctly indicate the status and the button cannot toggle since it has no way of knowing the status of the receiver (because the remote module can't transmit back).
The following items have 2-Way abilities and respond to a Status Request signal:
| Item | Manufacturer's # | Smarthome # |
| SwitchLinc 2-Way Wall Switches | | 2380, 2381, 2383 |
| ToggleLinc™ 2-Way Wall Switches | | 23890, 23893 |
| SwitchLinc Relay 2-Way Wall Switch | | 23883 |
| SwitchLinc Timer Wall Switch | | 12083 |
| KeypadLinc w/ Integrated Dimmer | | 12073W, 12074W |
| LampLinc™ | | 2000STW, 2000STW3 |
| I/O Linc™ Relay Controller1 | | 1624 |
| X10 2-Way Lamp Module | LM14A | 2000TW |
| X10 2-Way Appliance Module | AM14A | 2001TW |
| ACT 2-Way Switches | RS-114/115 | 2270A, 2271A |
| Motion Sensing Floodlights | PR511 | 4080XT |
| RF Transceiver Modules | RR-501 | 4005 |
1. The I/O Linc automatically echos back commands. Using confirmation settings in KeypadLinc is unnecessary.
Note about signals transmitted by Leviton "Green-Line" products: Some of Leviton's newest X10 transmitters do not communicate properly to some receivers, including KeypadLinc Controllers. They receive signals normally, but all receivers may not understand their transmitted signals. We have tested some of their products for compatibility with KeypadLinc and found that signals sent from the Leviton transmitters to the KeypadLinc are not recognized as valid X10 signals. We do not recommend using the Status Request feature with Leviton 2-way and transmitting products ending in "-1TW." Signals from KeypadLinc to all Leviton products are understood. For those technically inclined, Leviton has updated the way in which these controllers send their X10 signal. They have eliminated the"3-cycle gap" between the two frames of X10 data. |
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