How do you address a Honeywell alarm keypad?
Before using a Honeywell alarm keypad to control a hardwired Honeywell security system, you must set the keypad to a device address that is available and enabled within your Honeywell security system. The alarm keypad will come preset with a default address of (31) and may not show anything on the LCD screen when you wire it to your Honeywell security system. That does not mean you have a defective alarm keypad. You merely need to address it to a security system device address that supports keypads. As the Honeywell VISTA-15P, VISTA-20P, and VISTA-21iP security systems come with device address 16 enabled by default, we recommend that you set your first alarm keypad to address 16.
A brand new Honeywell keypad, that has never communicated with a control panel before, can be addressed at any time simply by holding down the  and  keys. When the existing address pops up, which by default will be (31), press  , you'll see the address change to 00, then press your intended address, in our example,  . You'll see the address change to 16, then press *.
When changing the address in a keypad that has been used before, you need to simultaneously press the  and  keys for (3) seconds within (60) seconds of powering up the keypad. Again, the existing address will appear, press  , then enter your desired address. If you wait longer than (60) seconds after power up to enter address mode programming, pressing  and  will simply display the current address without allowing you to change it, and you will have to power the alarm keypad down and start the process again. Also, if you allow (10) seconds to elapse without pressing a new key during device address programming, the alarm keypad will exit address mode and you will need to start again. Once the address is set and you press *, your keypad's LCD screen should then show the normal disarmed screen with current panel status.
You can view your programmed keypad address at anytime by pressing  and  at the same time for (3) seconds. The alarm keypad will display the currently programmed address but will not allow you to change it unless you power the keypad down. If you press any key or allow (10) seconds to go by, the keypad address display will go away and the default screen will be displayed again.
NOTE: The reason Honeywell keypads default to address 31, is that older residential Honeywell security systems were "non-addressable' and all keypads on those systems used address 31 to operate properly. So, for those systems, a new keypad out of the box worked when hooked up, no addressing required. If you have an older Honeywell system such as the 4110XM, Vista-20SE, Vista-10SE, Vista-15, these panels actually use address 31 for all keypads, and the default address in a new keypad would not need to be changed.
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