Data Sheet for Product

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Siemens PXC3.E... Room automation stations CM1N9203en_08
Smart Infrastructure 2020-10-30
Mechanical design
The compact build allows for mounting the devices on a standard mounting rail.
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Plastic housing
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Island bus plug connection
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Fuse for AC 24 V peripheral supply via island bus
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Plug-in terminal block (operating voltage)
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Plug-in terminal block KNX PL-Link
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2-port Ethernet switch (with 2 LEDs per port for display purposes)
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DALI bus
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LED display for device and system status
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USB Device interface
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0
Service pin
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Service pin DALI
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Slider for mounting on DIN rail
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Island bus cover (supplied with the device)
The bus supplies for island bus, KNX PL-Link and DALI are integrated in the room
automation station.
For better reliability of the room automation station, the bus supplies and the
AC 24 V outlets are independent from the room automations station's own supply.
The bus supplies are switched on by default and can be switched off via tool if not
needed.
The internal KNX PL-Link supply must not be operated in parallel with an
external supply. It must be switched off via tool when using an external supply.
This is typically the case if the devices connected to the KNX PL-Link consume
more than the 160 mA available from the internal supply.
Operation with external DALI supply is NOT possible.
The internal bus supplies can be reinforced by external power supply modules.
An additional TXS1.12F10 supply module must be switched on and off at the same
time as the room automation station. Otherwise, DC 24 V island bus supply may
sag, resulting in alarms.
Pow
e
r
supply
KNX PL-Link supply
DALI supply
Island bus supply