Planning

Planning call stations
PACE-Bus RS485 call station PT2003, PT2009
8
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41 | 46
8.2.2.4 Power supply and network redundant PT2009-A1
Fig. 17: Redundant wiring of multiple PT2009-A1
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 PTO2008-A1
8
Copper Ethernet cable (CAT5) with RJ45 connector, connecting PTO2008-A1
to PT2009-A1
The figure above displays a redundant wiring example of multiple PT2009-A1
being connected to one cabinet. This wiring can be utilized in standard- and
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 or other PT2009-A1.
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). Each PT2009-A1
is connected with one PNA2009-A1. A short circuit outside of the cabinet has no
impact on the 'PACE-Bus' communication to the other 'PACE-Bus' components.
The 24 V power supply, the 'PACE-Bus' (RS485) and the audio signal are
connected to PTO2008-A1 (6).
A fuse on the PTO2008-A1 protects the internal 24 V power supply.
The PTO2008-A1 provides a RJ45 connector with all the signals, which facilitates
the wiring of the PT2009-A1.
Each PT2009-A1 is connected with one PTO2008-A1.
Standard copper Ethernet cables (CAT5) with RJ45 connectors are used for the
wiring (8), connecting PTO2008-A1 to PT2009-A1.
DC/DC
PCA2011
PCA2018
Ground Fault
PCA2001
DC 24 V
Cabinet
PTO2008
PTO2008
RS485 isol
RS485 isol
PNA2009
PNA2009
RS485
intern
RS485
interf
Fuse
RS485
interf
Fuse
DC 24 V
DC 24 V
11
1
3
1
4
15
16
17
1
8
15
17
1
8
16
12
PT2009
CAT5
12
PT2009
CAT5