Fig. 98: Star Wiring Of Multiple Pt2009-A1 In The 24 V Redundant Use Case - Siemens Cerberus PACE Manual
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7.6.3.2 PT2009-A1 redundant power supply
A6V10430579_en--_b
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. 98: Star wiring of multiple PT2009-A1 in the 24 V redundant use case
1
Cerberus PACE cabinet
2
(3x) external 'Desk call station (RS485, 8+1)' PT2009-A1 with accessories
3
DC/DC converter 'MeanWell SD-50B-24 DC/DC Converter (50W)' PCA2011-
A1 or 'MeanWell SD-100B-24 DC/DC Converter (100W)' PCA2018-A1
4
'Ground fault monitoring (24V)' PCA2001-A1
5
'ICPDAS I-7510 (RS485, isolated)' PNA2009-A1
6
(3x) 'Call station interface (RS485)' PTO2008-A1
7
Wiring to first 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
151 | 173
7
PT2009
2
1
2
1
2
1
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