Fig. 60: Star Wiring Of Multiple Pt2009-A1 In The 24 V Redundant Use Case - Siemens Cerberus PACE Compact Installation, Mounting

7.5.3.2 Power supply redundant PT2009-A1
A6V11899867_en--_a
Use multiple PTO2008-A1 connected with copper Ethernet cables (CAT5) to build
a redundant 24 V wiring.
Cabinet
1
3
DC 24 V
DC/DC
Ground Fault
PCA2011
PCA2001
PCA2018
RS485
intern

Fig. 60: Star wiring of multiple PT2009-A1 in the 24 V redundant use case

1 Cerberus PACE Compact cabinet
2 External 'Desk call station (RS485, 8+1)' PT2009-A1 with accessories
3 DC/DC converter 'MeanWell SD-50B-24 DC/DC' PCA2011-A1 or 'MeanWell
SD-100B-24 DC/DC' PCA2018-A1
4 'Ground fault monitoring (24V)' PCA2001-A1
5 'ICPDAS I-7510 (RS485, isolated)' PNA2009-A1
6 'Call station interface (RS485)' PTO2008-A1
7 Wiring to PTO2008-A1
8 Copper Ethernet cable (CAT5) with RJ45 connector, connecting one
PTO2008-A1 to the next
9 Copper Ethernet cable (CAT5) with RJ45 connector, connecting PTO2008-A1
to PT2009-A1
Connect external components
1 1
4 1
PTO2008
7 1
Fuse
Audio In
Audio Out
RS485
RS485 isol Interf
1 5
PNA2009
PTO2008
Fuse
RS485
Interf
PTO2008
Fuse
RS485
Interf
Call station PT2009-A1
1 9
CAT5
6 1
1 8
9 1
PT2009
CAT5
1 6
8 1
9 1
1 6
PT2009
CAT5
111 | 122
7
PT2009
2 1
2 1
2 1