urmet domus 1067/024, Руководство по установке

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DS1067-063D
83
LBT20064
5.12.5 Connecting inputs
The type of inputs is determined by the way in which the detectors are connected. Instead, their specialization is defined
with the programming.
The type for each individual input is specified during programming. It is therefore possible to create a system that
includes different types of inputs.
Based on the type of connection, the inputs are divided into:

Double balanced : when in stand-by, the electrical circuit connected to the input must be closed with 2
– 2.7 kohm
resistors, tolerance 1%. Connection in conformity with EN50131.

NC (normally closed): when in stand-by the electrical circuit connected to the input must be closed
towards the negative.

Single balanced : when in stand-by, the electrical circuit connected to the input must be closed toward the negative
with a 2.7 kohm resistor tolerance 1%.

NO (normally open): when in stand-by, the electrical circuit connected to the input must be open (it closes towards
negative when in a state of alarm).

Shock / Roller : this type of input is used to connect the sensors that generate quick signals (shock, roller, seismic ...). In
this case connection method is necessarily type NC.
IMPORTANT! Each sensor must be powered by the device that controls it (control panel, expansion, keypad, or
reader). The balancing resistors must be connected to the negative of the power supply of the same device.
Connections with different power supplies may cause false alarms.
CONTROL PANEL CONTROL PANEL
SENSOR SENSOR
SENSOR SENSOR SENSOR
SENSOR