Directed Electronics Model 990 - Manual (Page 40)

37 © 2 0 0 6 d i r e c t e d e l e c t r o n i c s — a l l r i g h t s r e s e r v e d
after that input ceases, the security system will resume normal
monitoring. For example, if your vehicle has an interior light
exit delay and you arm your security system before the interior
light turns off, you may hear a second Bypass Notification chirp.
Once the light turns off, however, the security system resumes
normal monitoring.
disarming diagnostics
Extra chirps that are heard when disarming the system are the
Tamper Alert. If four chirps are heard when disarming the
system, then the security system was triggered in your absence.
If five chirps are heard when disarming the system, a zone was
triggered so many times that the Nuisance Protection Circuitry ™
has bypassed that zone. In either case, the status LED will indi-
cate which zone was involved (see Table of Zones section). The
security system will retain this information in its memory and
chirp four or five times each time it is disarmed, until the next
time that the ignition is turned on.
➜
note: Bypass Notification does not occur when the sys-
tem is in Silent Mode or if the notification chirps have
been programmed off by the installer.