System With Two Or More Transmitters In One Room - Bosch Integrus Installation And Operation Manual

Integrus
584 ns
563 ns
Figure 7.4 System with five radiators and measured impulse response times
Radiator
number
1
2
3
4
5
Table 7.2 Calculation of the delay switch positions of a system with one transmitter
NOTICE!
The calculated delay switch positions based on impulse response time can differ from the
calculated delay switch positions based on cable lengths. This is caused by the accuracy of
the measurements and the accuracy of the cable signal delay factor per meter as specified by
the manufacturer of the cable. If the impulse response time is measured correctly, the
calculated delay switch positions will be the most accurate.
7.4.2

System with two or more transmitters in one room

When radiators in one multi purpose room are connected to two transmitters, an extra signal
delay is added by:
–
–
Use the following procedure to determine the delay switch positions in a master-slave
configuration:
1.
2.
3.
4.
5.
6.
Bosch Security Systems B.V.
350 ns
R1
R2
R3
237 ns
R5 R4
339 ns
Impulse res-
ponse time [ns]
350
584
237
339
563
Transmission from master transmitter to slave transmitter (cable signal delay).
Transmission through the slave transmitter.
Calculate the cable signal delay for each radiator, using the procedures for a system with
one transmitter.
Calculate the signal delay of the cable between the master and the slave transmitter in
the same way as for cables between a transmitter and a radiator.
Add to the cable signal delay of the cable between the master and the slave, the delay of
the slave transmitter itself: 33 ns. This gives the master-to-slave signal delay.
Add the master-to-slave signal delay to each radiator connected to the slave transmitter.
Determine the maximum signal delay.
Calculate for each radiator the signal delay difference with the maximum signal delay.
Installation and Operation manual
Cable signal Signal delay
delay [ns] difference [ns]
350/2=175 292-175=117
584/2=292 292-292=0
237/2=118 292-118=174
339/2=169 292-169=123
573/2=281 292-281=11
Configuration | en 61
Delay switch
position
117/33=3.64=4
0/33=0
174/33=5.27=5
123/33=3.73=4
11/33=0.33=0
IOM-INT | V1.1 | 2010.12