User's Manual
110 • Hardware  Onity HT24W / HT28 Smart 
OPEN Option 
The OPEN function can be used to unlock a door that will not respond to a guest 
card or any master cards. It will even open a door that has missing or dead batteries. 
To OPEN a door with the PP, follow these steps: 
1.  Connect the PP to the lock and turn it ON. 
2.  Select OPEN by pressing the MENU button. 
3.  The message "Access Code:" will be displayed on the screen. Press the 
UP arrow key to find the first digit of the code, and then press the TX 
key. Press the UP arrow key again to find the second digit, and press 
the TX key. Repeat this procedure for digits 3 and 4. Upon entering the 
fourth digit, the PP will display "Transmitting" and the lock should 
open. 
Just like an Emergency key, the OPEN function will unlock a door that is locked 
with the deadbolt. For this reason the PP should be secured when not in use. If you 
cannot secure the PP, remove and reinstall one battery after each use. This will 
require that you connect the PP to the console load the programmer prior to 
performing the three steps above. 
Extended Portable Programmer (XPP) 
The Extended Portable Programmer (XPP) performs the same task as the standard 
Portable Programmer, but has features that the standard PP does not have. These 
include the ability to set up Operators to use the XPP, Allow or disallow various 
functions based on operator level or at the time of loading, greatly increased 
capacity, and the ability to load via directly connecting to the serial port of the 
computer which allows for faster loading of the unit. 










