Bosch INTEGRUS Service Manual download pdf (Page 63)

Integrus Configuration | en 63

Bosch Security Systems B.V. Installation and Operation manual IOM-INT | V1.1 | 2010.12

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. 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.

2. Set the transmitter in the Test-mode (see section 7.2.2 ). For each channel, a different

test tone frequency will be transmitted.

3. Set a receiver on the highest available channel and listen via the headphones to the

transmitted test tone.

Radiator

number

Trans-

mitter

Master-to-

slave

signal

delay [ns]

Cable

signal

delay

[ns]

Total signal

delay [ns]

Signal delay

difference

[ns]

Delay switch

position

1 Master 0 168 0+168=168 593-168=425 425/33=12.88=13

2 Master 0 280 0+280=280 593-280=313 313/33=9.48=9

3 Master 0 112 0+112=112 593-112=481 481/33=14.58=15

4 Master 0 168 0+168=168 593-168=425 425/33=12.88=13

5 Master 0 280 0+280=280 593-280=313 313/33=9.48=9

6 Slave 313 168 313+168=481 593-481=112 112/33=3.39=3

7 Slave 313 280 313+280=593 593-593=0 0/33=0

8 Slave 313 112 313+112=425 593-425=168 168/33=5.09=5

9 Slave 313 168 313+168=481 593-481=112 112/33=3.39=3

10 Slave 313 280 313+280=593 593-593=0 0/33=0

16 m

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 89 90

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Bosch INTEGRUS Service Manual Page 63

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