Atena Easy Addressable Fire Alarm Panel – Installation and Programming Manual
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2.3.4 Loop Controller
The Atena Easy fire alarm panel supports operation with the loop controller via communication protocol.
The Loop Controller realizes the connection between the I/O Module and devices connected to the communication
line. The Loop Expander has two basic functions:
Gathers data from the devices in the communication line and transfers it to the main microcontroller;
Receives commands from the main microcontroller and transfers them to the devices connected in the
communication line.
Up to 250 Comelit devices can be connected to Atena Easy loop controller. The general connection diagram of
devices to the loop controller is shown on Figure 13.
The maximum current consumption of the devices in the communication line is Imax = 500mA. If the consumption
exceeds this value an over-load protection would be turned on.
Figure 13 – Connecting of detectors to a loop controller
In the configuration of addressable fire alarm panel Atena Easy could be mounted a second loop controller as a
separate module – see Figure 14.
ATTENTION! Do not add or remove loop expanders to the fire panel configuration when
the main and backup power supplies are on!
- Connect the connectors: LOOP 2 of the main control panel and LOOP of the second loop controller.
- Fix the second loop expander to the metal box of the fire panel using the supplied bolts in the spare parts
kit.
LED 1/ LED 2 – LED indication for the loop controller status, analogical to that for the main control panel – see
the description on page 12.
Figure 14 – Adding of second loop controller
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