Mounting Instructions

Install internal components
Call station interface (RS485) PTO2008-A1
6
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A6V10430579_en--_b
6.21.3 Connect DC 24 V power supply and earth
The PCA2001-A1 provides one DC 24 V power supply connector ('CN1').
DC 24 V power supply connector - 'CN1'
Pin
Description
Remark
1
DC 24 V
Isolated 24 V power supply
2
DC 0 V
Isolated 24 V power supply
3
Earth
Earth fault reference
Table 64: PCA2001-A1 DC 24 V power supply connector - 'CN1'
6.21.4 Connect earth fault relay output
The PCA2001-A1 provides one earth fault status relay output ('CN2').
Earth fault relay connector - 'CN2'
Pin
Designator
Connection
1
NC
Connected to C if fault occurs (normally
open)
2
C
Common
3
NO
Connected to C in regular mode (normally
closed)
Table 65: PCA2001-A1 earth fault relay connector - 'CN2'
6.22 Call station interface (RS485) PTO2008-A1
The 'PACE-Bus' module 'Call station interface (RS485)' PTO2008-A1 provides a
convenient connection to the call stations PT2002-A1, PT2003-A1 and PT2009-A1.
It routes all signals to a copper Ethernet cable (CAT5) to connect the call stations
and further PTO2008-A1.
It provides a fuse to secure the 24 V in the cabinet in case of a short circuit outside
of the cabinet.
6.22.1 Mounting
The 'PACE-Bus' module 'Call station interface (RS485)' PTO2008-A1 is designed
to be mounted on a DIN rail in the cabinet.