How do I arm and disarm the VISTA-20P security system?

To arm the system, enter your security code followed by the desired arming key — for example, security code + [2] arms in AWAY mode, and security code + [3] arms in STAY mode. To disarm the system, enter your security code and press the [1] OFF key. If Quick Arming is programmed, you can press the [#] key in place of your security code when arming, but a security code must always be used when disarming. (Page 18, 21)