4
State
LED Color Indicator Performance
Transition Time
Addressable Loop Parameter Error
Amber
Four flashes for
125 ms
every 2 s
Immediately
(0 second)
Disarmed
Amber
Lit steady
The unit provides disabling an input by a disarm command which should be given to the unit from
the network controller with specifying the number of the input. In response to this command the unit
switches the input to the Disarmed state. For this state of the input the unit doesn’t generate messages
when the resistance of the input circuit has changed.
To resume operation of the input an arm command with the number of the input should be given
from the network controller to the unit. The relevant input shall enter a state related with the current
resistance of the alarm loop connected to the input.
If an error has occurred in the configuration parameters of an input, the input proceeds to the
Addressable Loop Parameter Error status. For this status the unit doesn’t generate messages when the
resistance of the alarm loop changes. The configuration of the input of the unit should be checked and
corrected (see Section “Programming the Unit”).
Figure 2 shows an example of the parameters of an input and the schematic when by means of a
single alarm loop states of a normally closed and a normally open contacts along with open and short
circuit failures can be monitored.
Figure 2. An Example of Parameters of an Input and Alarm Loop Schematic
