6
Keypad Low Battery
The keypad communicates a low battery condition to the panel through
the low battery bit set in the KEY PRESS message. If the battery is low,
on keypad wake up the keypad will indicate a fault condition (beep and
fl ash the LED red once) while briefl y displaying on the LCD a low battery
prompt, instead of the usual keypad ready message:
PLEASE REPLACE
KEYPAD BATTERIES
Once the low battery condition occurs, key presses will also be annunciated
by a double click instead of the usual single click.
If the battery condition continues to deteriorate to marginal levels, the
keypad may take measures to conserve power by limiting backlight
operation or reducing inactivity timeout before going into standby.
Communication Failure
If the keypad is unable to communicate with the panel during operation
and receives a RETRY FAIL message from its transceiver, it will indicate
a fault condition (beep and fl ash the LED red once) and display a prompt
to the user:
PLEASE RE-ENTER
KEY SEQUENCE
If the keypad is active and the condition persists for more than 15
seconds, the keypad will repeat the fault indication. This will recur until
the communication is restored or until the keypad times out and goes into
standby mode.
Piezo Annunciator
The keypad has a piezo sounder to indicate system conditions to the user.
A short beep will occur every time a key is pressed. In addition, commands
from the panel will instruct the sounder to operate in a specifi ed pattern.
Bicolor LED
The keypad has a red / green LED controlled by commands from the panel.
