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MP500/4N-8-16 Installation
GLOSSARY
AND
A logical function that requires that all the terms of the operation be true in order for the result to be true.
Open
An input is open when it receives a signal from a detector that is no longer in stand-by, for example, because of
an attempted intrusion has been detected.
ATS
Acronym of Alarm Transmission System. Depending on the performances they are capable of offering, they are
classified from ATS 1 to ATS 6, where ATS 1 is the simplest system and ATS 6 is the system with the highest
level of performance.
Communicator
A device capable of sending and transferring alarm signals and events via a telephone line.
Default
The initial value of a device before configuration or when it is restored to the values set by the manufacturer.
DTMF
Dual Tone Multi Frequency, indicates the "tonal" mode of composition of a telephone.
Entry
A point of access to rooms protected by the anti-intrusion system.
Event
A fact that occurs accidentally or when a specific condition is met, for example when a certain period of time has
passed.
Physical address
Method used by the control panel to identify and locate inputs and outputs.
Logical address
An alternative addressing method by which the control panel displays inputs and outputs and identifies them in
the alarm messages. The addresses can be freely assigned by the user.
Input
A point (terminal block) for the physical connection of a detector (usually a sensor or a contact).
An input can be connected to multiple sensors, which are perceived as a single physical entity. The input is
defined as being open when the sensor signals that it is no longer in stand-by, for example because it has
verified an attempted intrusion.
OC
Open Collector transistor.
OR
A logical function that requires that at least one of the terms of operation be true for the result to be true.
Way
A set of one or more inputs that temporarily inhibit the signalling of sensor alarms connected to enable the entry
into or exit of a protected partition. The duration of the temporary disabling is defined as entry or exit time.
Protocol
Set of rules that govern the exchange or the transmission of data among devices.
PSTN
Public Switched Telephone Network indicates the telephone land line.
SELV
Acronym for Safety Extra-Low Voltage (rated voltage max 25 V~ and 50 V
⎓
).
Partition
Grouping of entries, exits, user codes, and keys that are associated with a space to be controlled.
Tamper
Protective micro-contact of a device.
TC
Trigger Control, is a signal (voltage) of control that can inhibit the functioning of a sensor or of a signalling
device, for example, by putting it in stand-by.
Entry time
The time that the user has available from the moment in which he opens the first input to deactivate the desired
partition/s and prevent the generation of an intrusion alarm by the inputs configures as a "Way".
Delay time
The time that the user has available from the moment he opens the delayed input to the moment in which the
alarm is generated. It can be programmed for each individual input.
Exit time
The time that the user has available from the moment he activates the partition/s to exit the protected area and
prevent the generation of an intrusion alarm by the inputs configured as "Way".
Output
Point (terminal) for the physical connection of a device that enables the intrusion alarm system to act in the
external environment, e.g. by signalling an alarm (with a siren), communicating a system status (with a warning
light or an acoustic warning device), or activating electrical apparatus.
User
Grouping of one or more partitions.
