GR-750x series
Control panel for addressable
emergency luminaires
Document number:
923750400_90_001_EN
Date: 25/5/2023
Page: 8 of 15
[8]
The below figure describes the parallel connection of addressable points, which use a 2-way terminal, with the
loop board:
Notes:
•
Max 250 points per loop device
•
Max 150 points per line
Figure 5 - Closed loop topology
Table 1 - Recommended cable cross section
Loop cable length
200m
500m
1000m
1500m
2000m
P
o
int
Nu
mb
er
50
0.75 mm
2
1 mm
2
1 mm
2
1.5 mm
2
2.5 mm
2
100
1 mm
2
1 mm
2
1.5 mm
2
1.5 mm
2
2.5 mm
2
150
1.5 mm
2
1.5 mm
2
2.5 mm
2
2.5 mm
2
2.5 mm
2
The below figure describes the parallel connection of addressable points, which use a 4-way
terminal, with the loop board:
Notes:
•
Max 250 points per loop device
•
Max 75 points per line
•
Max 50m initial cable
•
Max 300m cable per line
Figure 6 - Opened loop topology