Bosch Appliances 3122 475 22015en manual System with two or more transmitters in one room

INTEGRUS Installation and User Instructions System description and planning en 11

584 ns	350 ns
R2	R1
	237 ns R3
R5	R4
563 ns	339 ns

Figure 1.27 System with five radiators and measured

impulse response times

Figure 1.27 and table 1.2 illustrate the calculation of the signal delays and the delay switch positions.

1.5.2System with two or more transmitters in one room

When radiators in one multi purpose room are con- nected to two transmitters, an extra signal delay is added by:

•Transmission from master transmitter to slave trans- mitter (cable signal delay).

•Transmission through the slave transmitter.

Use the following procedure to determine the delay switch positions in a master-slave configuration:

1.Calculate the cable signal delay for each radiator, using the procedures for a system with one trans- mitter.

2.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.

Table 1.2 Calculation of the delay switch positions of a system with one transmitter

Radiator	Impulse response	Cable signal	Signal delay			Delay switch
number	time [ns]	delay [ns]	difference [ns]			position
1	350	350/2 = 175	292-175 = 117			117/33 = 3.54 = 4
2	584	584/2 = 292	292-292	=	0	0/33 = 0
3	237	237/2 = 118	292-118	=	174	174/33 = 5.27	= 5
4	339	339/2 = 169	292-169	=	123	123/33 = 3.73	= 4
5	563	573/2 = 281	292-281	=	11	11/33 = 0.33	= 0

Note: The calculated delay switch posi- tions 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 accu- rate.

3.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.

4.Add the master-to-slave signal delay to each radia- tor connected to the slave transmitter.

5.Determine the maximum signal delay.

6.Calculate for each radiator the signal delay differ- ence with the maximum signal delay.

7.Divide the signal delay difference by 33. The rounded off figure is the signal delay switch posi- tion for that radiator.

8.Add delay switch positions to radiators under a bal- cony, if applicable (see section 1.5.3)

9.Set the delay switches to the calculated delay switch positions.

Bosch Security Systems 2005-04 3122 475 22015en