Technical data

24 en | Planning Integrus
IOM-INT | V1.1 | 2010.12 Installation and Operation manual Bosch Security Systems B.V.
Figure 4.17 Increased coverage area caused by added radiation power
Figure 4.18 Reduced coverage area caused by differences in cable signal delay
The lower the carrier frequency, the less susceptible the receiver is for differences in signal
delays. The signal delays can be compensated by using the delay compensation switches on
the radiators (see section 7.4 ).
4.3 Planning an Integrus infra-red radiation system
4.3.1 Rectangular footprints
Determining the optimal number of infra-red radiators required to give 100% coverage of a
hall can normally only be done by performing a site test. However, a good estimation can be
made by using 'guaranteed rectangular footprints'. Figure 4.19 and Figure 4.20 show what is
meant by a rectangular footprint. As can be seen, the rectangular footprint is smaller than the
total footprint. Note that in Figure 4.20 the 'offset' X is negative because the radiator is
actually mounted beyond the horizontal point at which the rectangular footprint starts.