Honeywell ESSER IQ8Control C Installation Instruction page 78

Fire Alarm Control Panel IQ8Control C / M
7.1.10 FOC transmission line in the essernet
Alternatively, the essernet
this.
This FOC converter (Part No. 784763 / 784764 / 784765) converts electrical signals into optical signals for reliable
data transmission under difficult transmission conditions in which, for example, copper cables cannot be used. It
is possible to use both FOC and conventional copper cable within one network simultaneously. The connection
of fire alarm system control panels through FOC requires at least one FOC converter and one essernet
per FACP. Depending on the type of fibre optics used, FOCs can be used to connect two fire alarm control panels
spaced a max. of 3,000 metres apart. The FOC converter can optionally be supplied with the FOC connection
type F-ST (Part No. 784763) or F-SMA (Part No. 784764).
The FOC converter must be fitted directly inside the control panel housing or the same control cabinet as the
housing. When doing so, the FOC converter must be fitted directly to the DIN rail (Part No. FX808387) without
using any additional fastening material.
Fig. 66: Schematic wiring of an fibre optics cable
Please refer to the manual (Part No. 798636 / 798963.10) for detailed information about fibre optic
wirings.
Requirements / restrictions

Each loop segment needs to be equipped with two multimode optical fibres.

The fibres must be connected directly and without interruption
(e.g. they cannot be connected using multiplexers).

Fibre type G50 / 125 µm, with a max. attenuation of 6 dB, corresponds to a max. length of approx. 2000 m and
fibre type G62,5 / 125 µm, with a max. attenuation of 9 dB, corresponds to a max. length of approx. 3000 m.

Maximum of 16 FOC lines per essernet

Maximum of 31 FOC lines per essernet
7.1.11 Specification
Main voltage
Quiescent current
Weight
Dimension (w x h x d)
78
®
can be set up with fibre optic cables. Optional fibre-optic converters are required for
Fibre Optics Link
FOC
essernet
Fibre Optics Link
FOC
® when using a transmission speed of 62,5 kBd.
® when using a transmission speed of 500 kBd.
: 24 V DC
: 37 mA
: 100 g
: 27 x 93 x 113 mm
®
FOC
®
FOC
® module
FB 798951.10.GB0 / 04.15