Systems With More Than 4 Carriers And A Radiator Under A Balcony; Testing The Coverage Area - Bosch Integrus Installation And Operation Manual

Integrus
Radiator
number
1
2
3
4
5
6
7
8
9
10
Table 7.4 Calculation of the delay switch positions of a system with two transmitters
7.4.3

Systems with more than 4 carriers and a radiator under a balcony

Figure 7.6 illustrates a situation in which a radiation signal delay occurs and which can be
compensated for. For systems with more than four carriers, add one delay switch position per
10 meter (33 feet) difference in signal path length to the radiators which are closest to the
overlapping coverage area. In Figure 7.6 the signal path length difference is 12 meter. Add one
delay switch position to the calculated switch position(s) for the radiator(s) under the
balcony.
Figure 7.6 Radiation path length difference for two radiators
7.5

Testing the coverage area

An extensive reception quality test must be done to make sure that the whole area is covered
with IR radiation of adequate strength and that there are no black spots. Such a test can be
done in two ways:
Testing during installation
1.
2.
3.
Bosch Security Systems B.V.
Trans- Master-to-
mitter slave
signal
delay [ns]
Master 0
Master 0
Master 0
Master 0
Master 0
Slave 313
Slave 313
Slave 313
Slave 313
Slave 313
16m
Check that all radiators are connected and powered up and that no loose cables are
connected to a radiator. Switch the transmitter off and on to re-initialise the auto
equalisation of the radiators.
Set the transmitter in the Test-mode (see section 7.2.2 ). For each channel, a different
test tone frequency will be transmitted.
Set a receiver on the highest available channel and listen via the headphones to the
transmitted test tone.
Installation and Operation manual
Cable Total signal
signal delay [ns]
delay
[ns]
168 0+168=168
280 0+280=280
112 0+112=112
168 0+168=168
280 0+280=280
168 313+168=481
280 313+280=593
112 313+112=425
168 313+168=481
280 313+280=593
4m
Configuration | en
Signal delay Delay switch
difference position
[ns]
593-168=425 425/33=12.88=13
593-280=313 313/33=9.48=9
593-112=481 481/33=14.58=15
593-168=425 425/33=12.88=13
593-280=313 313/33=9.48=9
593-481=112 112/33=3.39=3
593-593=0 0/33=0
593-425=168 168/33=5.09=5
593-481=112 112/33=3.39=3
593-593=0 0/33=0
IOM-INT | V1.1 | 2010.12
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