How Do I Add Additional Keypads on a Honeywell L5200?
You can add additional keypads on a Honeywell L5200 by adjusting the settings of the keypad to match the configurations of the panel. The Honeywell L5200 is part of the Honeywell LYNX Touch Series, and it will support the Honeywell 5828 and Honeywell 5828V Keypads.
Complete the following steps to pair a 5828 or 5828V Keypad with a Honeywell L5200:
1. Set panel House ID. Start from the main screen of the Honeywell L5200 Panel. Choose Security > More > Tools > Installer Code (default 4112) > Program > System Type > RF House Code. You can then set the House ID for the panel. This value can be set from 01 to 31. This is the House ID that will be assigned to the keypad, so make sure to remember it for later. The default House ID is "10". Once you have assigned an appropriate value from 01 to 31, press the "Done" button in the lower-right corner. Then press "Save" in the lower-right corner to save your changes. Then press the return arrow in the upper-right corner. Choose "Yes" to allow the Installer to reenter programming later if needed. Then press the return arrow in the upper-right corner again to return to the main screen.
2. Set keypad House ID. From this point forward, you can turn your attention to the 5828 or 5828V Keypad. If your keypad is running on battery power, you must press and hold the [*] key for a few seconds. It will light up and produce some type of sound. If the keypad is running on AC power, you will not need to do this. With the keypad active, press and hold the  and  keys simultaneously until the keypad flashes between "00" and "--". This indicates that the keypad is now in its programming mode. This guide will only cover the steps necessary for programming the keypad to a Honeywell LYNX Touch L5200. For additional programming options, please review the Honeywell 5828 and 5828V Install Guide.
Press  to enter the House ID sub-field. The keypad screen will flash between "t1" and the current two-digit House ID setting. Enter in the same two-digit House ID that was provided in Step 1. Then press the [*] key to confirm your selection. The keypad will go back to flashing between "00" and "--". The keypad House ID will be set.
3. Set System Type. Press  to enter the System Type sub-field. The keypad screen will flash between "t2" and the current System Type value. Since you are setting the keypad up for a Lynx Touch System, you will press . If you were programming the keypad for use with a Honeywell VISTA System, you would enter . After pressing , press the [*] key to confirm your selection. The keypad will go back to flashing between "00" and "--". Then press the [*] key to exit programming.
4. Test the keypad. With the keypad active, enter in [Master Code] + . This is the same Master Code that is used with your L5200. This code is 1234 by default, but it is usually changed for security purposes. The keypad should display that the system is going into arm stay mode. The L5200 will display this as well. Then press [Master Code] +  on the keypad. The keypad should display that the system is disarmed. This will also be displayed on the L5200 Panel. If you can arm and disarm the system successfully using the keypad, then it has been programmed correctly.
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