Siemens FS720 Quick Reference For Components / Pin Assignment page 34

Fire terminal board FTI2001-A1
7.2.3 X6/X7 supply input 2/1
34
Building Technologies
Fire Safety & Security Products
If the fire terminal is supplied by a fire control panel, a redundant supply is needed
according to EN 54. For reasons of reliability, the two supply lines must be routed
separately.
FT724
U
Sys 1
U
Sys 2
FTI2001-A1, supply via a fire control panel
X6, supply input 2
PIN Designation
4 VSYS - 2
3 VSYS - 2
2 VSYS + 2
1 VSYS + 2
Admissible cable cross-section: 0,2 ... 2,5 mm²
X6
VSYS -2 4
-
VSYS -2 3
-
+
VSYS +2 2
+
VSYS +2 1
Fire terminal board
X7
X6
Description
Ground
Ground
System supply 21 ... 28.6 V DC (+)
System supply 21 ... 28.6 V DC (+)
A6V10210410_a_en_--
18.05.2009