Connect external components
Call station PT2009-A1
7
A6V10430579_en--_b
151 | 173
7.6.3.2 PT2009-A1 redundant power supply
Use multiple PTO2008-A1 connected with copper Ethernet cables (CAT5) to build
a redundant 24 V wiring.
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
1
8
1
8
1
9
1
9
1
9
1
2
PT2009
1
2
PT2009
1
2
PT2009
CAT5
CAT5
CAT5
DC/DC
PCA2011
PCA2018
DC 24 V
Cabinet
RS485
intern
RS485 isol
PNA2009
1
1
1
3
1
4
1
5
1
7
Ground Fault
PCA2001
Audio Out
Audio In
C
A
T
5
C
A
T5
PTO2008
1
6
RS485
Interf
Fuse
PTO2008
1
6
RS485
Interf
Fuse
PTO2008
Fuse
1
6
RS485
Interf