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7
Connect external components
Desk call station PT2001-A1
7.1.3.2 Redundant power supply from a cabinet
7.1.4 Connect PACE-Net Ethernet
92 | 122
If the DC 24 V is used for other external devices, a 1 A fuse is required for each
device.
Cabinet
1
3
DC 24 V
DC/DC
Ground Fault
PCA2001
PCA2011
PCA2018
Fig. 52: PT2001-A1 redundant power supply from a cabinet
1
Cerberus PACE Compact cabinet
2
External 'Desk call station (19 buttons)' PT2001-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
Fuse 1 A
'Call station interface (redundant)' PTO2009-A1. See Call station interface
6
(redundant) PTO2009 [➙ 118]
7
DC 24 V wiring to 'Desk call station (19 buttons)' PT2001-A1 or other devices
A ground fault monitor PCA2001-A1 must be used when the PT2001-A1 is
powered from a cabinet with a DC/ DC converter PCA2011-A1 or PCA2018-A1.
If the DC 24 V is used for other external devices, a 1 A fuse is required for each
device.
A PTO2009-A1 must be used to connect the PT2001-A1 with 2 separate DC 24 V
cables from one cabinet or different cabinets. Each DC 24 V cable requires a 1 A
fuse mounted in the cabinet.
The PT2001-A1 provides 2 Ethernet sockets at the rear of the housing. Always
connect port A (ETH A) with an Ethernet switch.
A redundant Ethernet connection can also be established by connecting socket
port B (ETH B) with an Ethernet switch. It can be the same switch or, for higher
redundancy, another Ethernet switch in the system. If the connection on port A fails,
the PT2001-A1 uses automatically port B for the communication.
1
1
1
4
Fuse
5
1
Fuse
5
1
7
1
DC 24 V
Interf.
DC 24 V
Redund.
7
1
PTO2009
PT2001
A6V11899867_en--_a
1
2
6
1
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