option must be enabled on the control panel as well as the keypad
(enable "keypad zone supervision" on control panel section [090] key
[11] "on" for keypad zone 1, and key [12] "on" for keypad zone 2). For
this option to work, the keypad zone option [1] must be enabled.
Keypad Tamper Supervision
Section [2] — Option [5]
Off = Disabled (default)
On = Enabled
The keypad can be ordered with or without an anti-tamper switch. If
you want the system to supervise the status of the anti-tamper
switch, you must turn on option [5]. If the tamper switch is open, the
keypad will send the message "Keypad zone open". If you do not
have an anti-tamper switch or if you do not want the system to
supervise its status, turn off option [5].
Partitioning
Section [2] — Option [6]
Off = Disabled (default)
On = Enabled
This option must be enabled if the system that the 642 keypad is
connected to is partitioned.
Master/Slave
Section [2] — Option [7]
Off = Master (default)
On = Slave
Activate this option with control panels using more than 12 zones. If
there are more than 12 zones being used in the system, only one
LCD keypad can be master and all other keypads are slaves. If using
more than 12 zones in the system and more than one keypad is set
6 Installation Guide