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7
Connect external components
Call station PT2009-A1
7.5.3.3 Power supply and network redundant PT2009-A1
112 | 122
To build a complete redundant wiring with multiple PT2009-A1, use multiple
PTO2008-A1 with 24 V and separately connected isolated RS485, analog audio in,
and analog audio out.
Cabinet
1
3
DC 24 V
DC/DC
Ground Fault
PCA2011
PCA2001
PCA2018
RS485
intern
RS485
intern
RS485
intern
Fig. 61: Star wiring of multiple PT2009-A1 in the 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 PTO2008-A1
9
Copper Ethernet cable (CAT5) with RJ45 connector, connecting PTO2008-A1
to PT2009-A1
1
1
4
1
PTO2008
7
1
Fuse
Audio In
Audio Out
RS485
RS485 isol
Interf
5
1
PNA2009
PTO2008
Fuse
Audio In
Audio Out
RS485
RS485 isol
5
1
Interf
PNA2009
PTO2008
Fuse
Audio In
Audio Out
RS485 isol
RS485
1
5
Interf
PNA2009
1
9
CAT5
6
1
1
8
1
9
PT2009
CAT5
1
6
8
1
9
1
1
6
PT2009
CAT5
A6V11899867_en--_a
PT2009
2
1
2
1
2
1
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