Page 19 - Priesgaisrine signalizacija FX 3NET_Schneider Electric_Projktavimo instrukcija_ENG

Planning Instruction 66571758GB0 Fire Detection 19

5.3 Interpanel communication

In large systems with several panels, and especially if the panels are located apart, it is important to ensure the
communication between the panels. Therefore the FX 3NET communication is secured with two separate
communication lines (System 1 and System 2). If one line is broken or shorted, the system is still able to
communicate with the other one. This redundancy also includes the communication circuitry in the panels. Both
communication lines are constantly monitored and if any faults are detected in either of them, a fault warning is
issued immediately.

The physical connection is based on the RS-485 standard with all panels connected in parallel to each
communication line. The length of the cable can be up to 1,200 m, but, if needed, it can be extended to several
kilometres with base band modems or optical fibre modems.

5.4 Networked FX 3NET main parameters

FX_ 3NET panels in any combinations 32
Seeing – visible connections 256
Addressable detection circuits 255
Detection zones 8,000

Note! When the INFO serial communication is used, the maximum address capacity per detection circuit is
214: lower address range 1...159 + higher address range 201...255.

Note! In an FX 3NET system, the FX control panels must be configured before they are connected to each
other.

A standalone FX 3NET system can be commissioned and used without configuration; however, the
following has to be considered:
 Every time the system is started, the presence of all addresses has to be verified manually.
 The zone assignments of the addresses are according to the default scheme.

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Schneider Electric Pelco Finland Oy Kalkkipellontie 6, 02650 Espoo, Finland Telephone: +358 10 446 511 Fax: +358 10 446 5103 www.pelco.com/nordic
Document Number 66571758GB0 49 2011