Siemens FS720 Mounting & Installation page 187

7.18.2.7 Connection terminals for the I/O card (RT) in the card cage
Pin
Connecto
r
X11 1
2
3
4
X12 1
2
3
4
X11 5
6
7
8
X12 5
6
7 RE_Response/GPIO1 Programmable input/output / RE response in accordance with
8
Building Technologies
Fire Safety
The I/O card (↑ RT) FCI2007-A1 determines the PIN assignment of the four
connection terminals in the card cage.
External connections on the card cage using the example of module bus card 1
with the associated connection terminals X11 and X12:
X12
4 3 2 1 4
8 7 6 5 8
● The external connections of module bus card 2 are on connection terminals
X21 and X22
● The external connections of module bus card 3 are on connection terminals
X31 and X32
● The external connections of module bus card 4 are on connection terminals
X41 and X42
● The external connections of module bus card 5 are on connection terminals
X51 and X52
Depending on the card cage, not all slots may be available for module bus cards
and connection terminals. However, the numbering and assignment of the
connection terminals are identical on all card cages.
Designation Description
AL-NO Alarm relay normally open contact (normally open)
AL_COM Alarm relay center tap (common)
AL_NC Alarm relay ↑ normally closed contact
27V2 Supply output (+Vsys)
0 V Supply output (–Vsys)
FAU_NO Fault relay ↑ normally open contact
FAU_COM Fault relay center tap (common)
FAU_NC Fault relay normally closed contact (normally closed)
RT_Fault+ Output 3 (+) fault output
RT_Fault- Output 3 (-) fault output
FireOutput 2+ Output 2 (+) can be configured as alarm output or horn output
FireOutput 2- Output 2 (-) can be configured as alarm output or horn output
FireOutput 1+ Output 1 (+) can be configured as alarm output or horn output
FireOutput 1- Output 1 (-) can be configured as alarm output or horn output
↑ VdS
GPIO2 Input/output programmable
Admissible cable cross-section: 0.14...1.5 mm²
Installing, exchanging and connecting modules
X11
3 2 1
7 6 5
7
Module bus cards
187 | 248
A6V10210390_m_en_--
2018-08-29