Advertisement
K E Y PA D
The D-8 keypad consists of 18 buttons, 19
indicators and 1 internal beeper.
B U T T O N S
The 10 numeric buttons are used for entering
access codes and in program mode to enter
option selections and values.
The Enter button is used at the end of every
sequence to store the selected data.
. . E N T E R . .
C O N T R O L S A N D I N D I C AT I O N S
A U D I B L E I N D I C AT I O N S
Every time a button is pressed on the keypad
it responds with a brief beep in acknowl-
edgment.
The beeper is also used to indicate whether
the entry was valid or invalid. For example,
whenever enter is pressed, all the buttons
pressed before it are checked to see whether
they are valid. If they are valid, the response
will be 3 short beeps.
If they are invalid (or incor rect) the response
will be 1 long beep and they will be ignored.
At other times, the beeper will sound warn i n g s
such as 10 beeps for a low battery or mains fail.
The beeper may have been programmed to
sound continuously if an alarm has occurred.
6
-
-
-
10
- - - - - -
,
Advertisement
