Power Supply Check And Calculation - LEGRAND D45 SYSTEM Installation Manual

GENERAL RULES FOR INSTALLATION

Power supply check and calculation

Before proceeding to the system installation, it is necessary to check the power supply of the whole system:
1. Check that the power supplies
are enough to supply the power
current needed by the devices to
install the system.
Type of handseTs
The video handset can be of different types depending on the power consumption:
type of handSetS
Colour
With alarm
With secondary entrance panel
100 mA current alarm sensor
300 mA current alarm sensor
The maximum quantity of handsets and EP that the riser system power supply can accept:
type of handSetS
1 EP + Riser shunt
(without A/C)
2 EP + Riser shunt + Entrance panel
+ video mixer (without A/C)
3 EP + Riser shunt + Entrance panel
+ video mixer (without A/C)
4 EP + Riser shunt + Entrance panel
+ video mixer (without A/C)
5 EP + Riser shunt + Entrance panel
+ video mixer (without A/C)
1 EP + Riser shunt
(with A/C)
2 EP + Riser shunt + Entrance panel
+ video mixer (with A/C)
3 EP + Riser shunt + Entrance panel
+ video mixer (with A/C)
4 EP + Riser shunt + Entrance panel
+ video mixer (with A/C)
5 EP + Riser shunt + Entrance panel
+ video mixer (with A/C)
62
2. Check that the distance (in meters
of cable) between power supply
and devices allows the devices to
get enough power supply voltage
to work correctly.
1 2 3 4
 



1 2 3 4
40 4 12 4 [*1]
32 4 8 4 [*1]
28 4 4 [*N]
24 [*N] 4 [*N]
20 [*N] 4 [*N]
36 4 8 4 [*1]
24 [*N] 4 [*N]
16 [*N] 4 [*N]
4 [*N] [*N] [*N]
[*N] [*N] [*N] [*N]
3. Maximum distance between Floor
5 6 7 8
 
  
 

 
5 6 7 8
[*N] 4 [*2] 52 4
[*N] 4 [*2] 44 4
[*N] 4 [*2] 38 4
[*N] [*N] 36 4
[*N] [*N] 36 4
[*N] 4 [*2] 48 4
[*N] [*N] 36 4
[*N] [*N] 28 [*N]
[*N] [*N] 16 [*N]
[*N] [*N] 4 [*N]
shunt and handset Maximum
distance = 50m (CAT5 Cable).
9 10 11
  
 
 


9 10 11
12 24 [*1] 4 [*1]
12 20 [*1] [*N]
8 12 [*1] [*N]
8 8 [*1] [*N]
4 4 [*1] [*N]
12 20 [*1] 4 [*1]
8 8 [*1] [*N]
4 4 [*1] [*N]
4 [*N] [*N]
[*N] [*N] [*N]
12




12
4 [*1]
4 [*1]
[*N]
[*N]
[*N]
8 [*1]
4 [*1]
4 [*1]
4 [*1]
[*N]