Ghost signals are referred to as alarm signals that come in on an unknown or different account within signal automation software. Incorrect programming or central station receiver line card errors usually are to blame. With some understanding of how they come in and how they can be dealt with, one can reduce the frequency of these signals.
How do ghost signals occur? When a central station has more than one receiver – as most do – each receiver must be given a separate identity, called a line identifier. When a technician programs the correct account number with an incorrect phone number in a panel, disastrous results may occur.