How to change the master code on the DS7100

 For the installer to change the Master Code:

1. Enter programmers mode by entering installers code (default 98765) # 0.
2. Enter address 84 then press 01+1+new passcode (1 to 5 digits) followed by the # key.
3. Press and hold star key to exit programming.

For the User of the system to change the Master Code:

1. Enter user code programming mode by entering the master code (default 1234) # 0.
2. Enter 01+1+new passcode (1 to 5 digits) followed by the # key.

If entered correctly, a long beep will sound at the end of the commpleted sequence.