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Fire Alarm Control Panel IQ8Control C/M

FB 798951.GB0 / 01.09 75

FOC converter (Part No. 784763 / 784764)

The FOC converter is used to convert electrical into optical signals for reliable data communication under

difficult conditions e.g. where conventional copper cables are not suitable. Mixed operation of fibre optical and

conventional wiring within a common network is possible. The mixed operation of Fibre optics cable (FOC) and

conventional copper cables within a common network is possible. For networking Fire Alarm Control Panels via

fibre optic cables, at least one FOC converter and an essernet

micro module from hardware revision E are

required. Depending on the optical cable type, the distance between two FACPs may be up to 3000 m. The

FOC converter is available with type F-ST (Part No. 784763) or type F-SMA (Part No. 784764) optical

connectors.

Installation

The FOC converter must be mounted inside the FACP housing or in the same control cabinet. It is mounted

directly on a standard 35 mm top hat rail (C mounting) (Part No. 788602 / 788652).

Requirements / limitations



two multi-mode fibres are required per network section

 the fibres must be connected directly to each other (not via a multiplexer)

 fibre optics type G50 / 125 µm Î max. attenuation 6dB corresponding to a length of ca. 2000 m or

fibre type G62.5 / 125 µm

Îmax. attenuation 9dB corresponding to a length of ca. 3000 m

 max. 16 FOC connections per essernet

network at a transfer rate of 62.5 kBd

 max. 31 connections per essernet

network at a transfer rate of 500 kBd

essernet

FOC

Fibre Optics Link

Fig. 63: Schematic wiring of an fibre optics cable

Please refer to the manual (Part No. 798636 and 798963) for detailed information about fibre optic

wirings.

Honeywell IQ8Control C User Manual

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