LEGRAND 3440 - Page 237

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3485B
Description
The central unit has the function of supervising the burglar-alarm system, enabling the
management of the zone sensors independent from one another.
It is possible to save up to 4 activation scenarios and use them based on actual needs.
The device can manage up to 10 automations split as follows:
- 1 actuated using an internal relay and coupled with intrusion events, technical alarms,
or system status;
- 9 coupled with arming, disarming, date and time events, to generate separation
scenarios.
Main functions
- System self-learning and conguration on-screen display;
- can be controlled by transponder and keypad (20 keys maximum);
- independent management of each sensor;
- local contact in addition to those already present on the system (congurable);
- possibility of updating the rmware using the PC;
- detailed event memory and alarm only memory;
- blocking for 1 minute the possibility of arming or disarming, or access to the navigation
menu, if the wrong key is entered for three consecutive times;
- association of a user set name to scenarios (max. 4), sensors and zones;
- each individual sensor can be deactivated by sending a command from the central unit
keypad;
- signalling of failed connection with: sensors, with the system disarmed, a signalling
icon is displayed, with the system armed, an alarm is generated;
- division of the zones directly from the central unit keypad;
- presence of a local automation and signalling relay.
Management of burglar-alarm functions
The central unit manages a total of 6 zones;
- zone 0 is reserved for the activators (max. 9);
- zones from 1 to 4 are reserved for the sensors;
- zone 9 is reserved for the technical alarms/ auxiliaries (gas detector etc.).
Performs the following functions:
- manages the events communicated by the sensors and can determine if and when to
give the alarm;
- zones from 1 to 4 can be separated as the user requires;
- up to 4 division scenarios can be created and activated depending on needs;
- all the customising phases are guided and shown by means of the display;
- an automation can be coupled to the detection of a certain alarm, using the local relay:
for example, the switching on of a light, to confuse the intruder.
Legend
1 - Graphic display: displays the messages which guide the programming operations and
the events which have occurred (more information on the following page).
2 - Transponder reader: receives the burglar-alarm system switching on and o commands
directly from the transponder keys.
3 - Alphanumeric keypad: allows the manual switching on of all those programming
operations which require the use of numbers and/or symbols.
4 - C key: exit the current menu and the programming.
5 - OK key: to conrm the programming operations.
6 - Navigation keypad: navigate the menu.
Technical data
- Power supply from SCS BUS: 27 Vdc
- Max. absorption: 50 mA
- Operating temperature: 5 – 40°C
- Load of local relay contacts: 12/24 V – 1 A
- Installation: wall mounted
Dimensional data
Size (H,L,D): 128x125x25 mm
Front view
Base central unit
MQ00023-c-EN 24/04/2014