Barnett Engineering B1277, Installation & Operation Manual, Page: 48 / 50

PAGE 44 GLOSSARY
Intrusion Input – an input type that provides a time delay and the ability
to enable (arm) and disable (disarm) an alarm using a DTMF code. An
alarm condition detected on this input remains until the disarm code is
received.
MDN
– see Mobile Directory Number
MIN – see Mobile Identification Number
Mobile Directory Number – the ten digit phone number assigned by a
cellular provider that one would dial to reach a specific mobile phone.
This number may be the same as the MIN.
Mobile Identification Number
– a ten digit number assigned by a cellular
provider that identifies a mobile device on their network. This number
may be the same as the MDN.
Program Code
– a DTMF digit that is followed by two * digits that
specify the programming parameter to be changed.
PTT – see Push To Talk
Pulse Width – see Interval Input
Push To Talk – an output from the Cv3 that provides a ground closure
when a radio transmission is required and an open circuit when idle. a.k.a.
Push To Transmit
Relay – an output that provides a normally open (Form A) or normally
closed (Form B) set of isolated contacts that have the capacity to be used
to turn on lights or sirens or control other equipment.
Shift – a time when an alternate directory (or set of directories) is used.
Shift Select Input – an input type that can specify the current shift based
on its state or that can advance through the shifts each time it is asserted.
Totalizer
– an input type that counts the number of transitions of an input
between asserted and de-asserted states.
Watchdog
– an input type that remains in the idle state as long as the
signal on the input terminal is transitioning between asserted and de-
asserted states. If the input stops changing for a specified amount of time,
an alarm is generated.