Planning

Planning call stations
PACE-Bus RS485 call station PT2003, PT2009
8
A6V11899877_en--_b
39 | 46
8.2.2.3 Power supply redundant PT2009-A1
Fig. 16: Star wiring of multiple PT2009-A1 in standard use
1
Cerberus PACE Compact cabinet
2
External Desk call station (RS485, 8+1) PT2009-A1 with accessories
3
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 the 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
The figure above displays an example of star wiring of multiple PT2009-A1 being
connected to one cabinet. This wiring can only be utilized in standard use cases
and is not permitted in evacuation use cases.
PCA2011-A1 and PCA2018-A1 (3) provide isolated DC 24 V. A short circuit
outside of the cabinet has no impact on the whole cabinet.
The PCA2001-A1 (4) detects a ground fault on the 24 V wiring to PT2009-A1.
The PNA2009-A1 (5) provides an isolated 'PACE-Bus' (RS485). A short circuit
outside of the cabinet has no impact on the communication in the cabinet.
DC/DC
PCA2011
PCA2018
DC 24 V
Cabinet
RS485
intern
RS485 isol
PNA2009
PTO2008
RS485
interf
Fuse
PTO2008
RS485
interf
Fuse
PTO2008
RS485
interf
Fuse
1
1
13
14
18
15
1
6
1
7
1
8
Ground Fault
PCA2001
16
1
6
1
9
1
9
19
1
2
PT2009
12
PT2009
12
PT2009
CAT5
CAT5
CAT5