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Chapter 3 • ADM technology
Connection of detectors Labor Strauss
3
ADM technology
3.1
General
This chapter applies to fire detection control panels with a loop interface which is suitable for the con-
nection of Series FI700 and FI750 detectors. This document only describes the technical possibilities of
connecting dialog devices, on the basis of electrical engineering and information processing. Standards
or other regulations, that have to be observed to guarantee the fire protecting capability of the system,
have not been taken into account. These regulations vary in different countries and can therefore not be
considered in this document.
We would like to put special attention on the fact that, especially in the field of security systems, tech-
nical possibilities are often drastically limited by country-specific regulations. Please do get familiar
with those regulations before you start planning, installing and mounting devices. In case of doubt
please contact the relevant local authority. Of course we are also at your disposal for any further
information.
3.1.1
Hints for project planning
A loop with the Labor Strauss/700 protocol allows you to connect up to 240 elements Series FI700 and
FI750. All detectors and modules on a loop are connected on a two-wire line.
The installation may
only
be done in the form of a loop. You will find an example on page 189 in
Chapter 3.14: „Example for the wiring of detector circuits“. A loop must
not be connected to another
loop
, as an open circuit (broken wire) would not be detected in this case.
We strongly recommend the use of the loop calculator tool (FireSysCALC_xxxx.ods), which can be
downloaded from the LST website after registration. This is even more important when you have many
loop elements, loop-powered elements or a long distance between the elements and the control panel.
All Series FI700 and FI750 elements have an integrated isolator on the input and output side. This isol-
ator interrupts the loop line in the case of a short circuit and thus ensures proper function of the remain-
ing elements.
Fire Detection Control Panels Series BC216 allow simultaneous activation of up to 8 detector/module
LEDs per loop. This has to be taken into account when remote indicators and sounders which are actu-
ated via parallel outputs are used.
In the case of Fire Detection Control Panels Series BC600, this limitation can be cancelled by setting
the remote indicator output to the property „individual“ or „intelligent“ (PARSOFT window
Element
parameters – General
).
Connection-LST.odt / 2009 / AN9161298
200/92
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