Radio Shack 49-537 Owner's Manual page 20

49-537.fm Page 20 Thursday, August 19, 1999 9:16 AM
• If the keypad does not respond to your code,
there might have been a power failure while you
were away or there might be a loose, intermit-
tent connection at the
either case, the keypad resets to the factory
code (1 2 3 4) when power is restored.
ARM AND LOOP INDICATORS
The operation of these indicators varies depending
on the type of alarm system you use. Some sys-
tems use both indicators, while others might use
only one or neither.
In most cases, these indicators should respond the
same way as corresponding indicators on the main
alarm panel.
If you connect these indicators but they do not
work, check for loose connections or incorrect
polarity.
20
terminals. In
POWER