Operating 15088:J 10/22/99 2-5
About entering alphanumerics
Most of the keys on the DIA keypad serve more than one function. For instance, the 3 key is used to enter the
digit 3 or the letter D when entering the address of a detector.
The AM2020/AFP1010 toggles which character is displayed on the LCD with each successive keypress of that
same key. This allows the operator to press a particular key until the desired character is displayed. That
character is entered into the display whenever the next, different, key is pressed. If two of the characters
contained on a particular key (for instance, the D and the 3) need to be entered in succession, the ALPHA ENTER
key must be used (see example that follows). After the full address has been entered into the display, press
ENTER to transfer the display contents to the system for processing.
Example: To enter L8D3,
About Walk Test
The Walk Test function is a service feature that allows one-man testing of devices on any selected LIB. The
Walk Test feature will automatically abort after 15 minutes of inactivity if inadvertently left enabled by the service
representative.
K L
SIGNAL
SILENCE
K L
SIGNAL
SILENCE
O
8
O
8
D
3
ALPHA
ENTER
D
3
D
3
ENTER
Press to transfer the display contents to the AM2020/AFP1010 system for processing.
Press and the letter K will be displayed.
Press again and the K will change to L.
Press and the letter O is displayed to the right of the displayed letter L.
Press again to change the letter O to the digit 8.
Press and the letter D will be displayed to the right of the displayed characters L8. The
partial address displayed now reads L8D.
Press to enter the letter D into the display.
Press and a second letter D will be displayed to the right of the displayed characters L8D.
The partial address displayed now reads L8DD.
Press again to change the second D to the digit 3.
The completed address now reads L8D3.
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