Bosch Appliances 3122 475 22015en manual Calculation of the master-to-slave signal delays

INTEGRUS Installation and User Instructions System description and planning en 12

Caution: Turn the delay switches carefully to a new position until you feel that it clicks into position, to prevent that a switch is positioned between two numbers, which would result in a wrong delay setting.

Note: When a master-slave configuration is used for rooms which are always sepa- rated, the delay switch positions can be determined per system and the delay caused by transmission from master to slave transmitter can be ignored.

Figure 1.28, table 1.1, table 1.3 and table 1.4 illustrate the calculation of the extra master-slave signal delay.

Table 1.3 Calculation of the master-to-slave signal delays

	20m		30m
R2		R1
			20m
	R3		Tx1
R5	20m	R4	30m
R7	20m	R6	50m
			30m
	R8		Tx2
			20m
R10		R9
	20m		30m

Figure 1.28 System with master and slave transmitter in

multi purpose room

Cable length

Cable

Cable

Signal delay

Master-to-slave

master-slave

signal delay

signal delay

slave transmitter

signal delay [ns]

transmitter [m]

per meter [ns/m]

[ns]

[ns]

50

5.6

50 x 5.6 = 280

33

280 + 33 = 313

Table 1.4

Calculation of the delay switch positions of a system with two transmitters

Radiator

Transmitter

Master-to-

Cable signal

Total signal

Signal delay

Delay switch

number

slave signal

delay [ns]

delay [ns]

difference

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

Bosch Security Systems 2005-04 3122 475 22015en