IP Tau
User Manual v1.0
Inova-bg Ltd. 2016
Page 10 of 16
4.4.
Settings for the digital inputs
According to which protocol is selected, in digital inputs settings different fields will
become active/deactive.
Digital inputs can be connected to PGM outputs of security panles or to any different kind
of sensors – panic-buttons, tampers and etc. In the
Active State
field you can set the working
mode of each input – normal close ( N.O. ) or normal open ( N.C. ) contact, check for AC on
this input ( Hardware AC ) or you can disable the input ( Not Used ). When digital input is
connected to PGM or dry contact, for ‘0’ state is accepted value of the resistance to ground less
than 300Ω and for active ‘1’ – value more than 1,4KΩ ( or open circuit ), the hysteresis is
between 300Ω and 1,4KΩ. If digital inputs are controlled by voltage for ‘0’ state is accepted
value of the voltage to ground less than 0,7V, and for active ‘1’ – value more than 2,6V, the
hysteresis is between 0,7V and 2,6V.
Type
– Choose a message which will correspond to the change of state of this input
