Data Sheet for Product

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Siemens PXC3.E... Room automation stations CM1N9203en_08
Smart Infrastructure 2020-10-30
Ethernet interface Plug 2 x RJ45, screened
Interface type 100BaseTX, IEEE 802.3 compatible
Bit rate 10 / 100 Mbps, autosensing
Protocol BACnet over UDP/IP
USB interface Plug Type B (USB device)
Data rate 12 MBit/s (Full speed)
Galvanic isolation of ^
No
Protective circuit against surges and
over current
Yes (balancing currents are limited, also
in the GND conductor)
Island bus interface
Communications
Interface type
Siemens specific protocol
DC output Nominal voltage DC 24 V
Max. current 600 mA
(sufficient for typically 8 TX-I/O modules)
Parallel switchable with 3 supply
modules TXS1.12F10
For details, see: TX-I/O planning and
installation manual, CM110562)
Short-circuit proof, overload-proof Self-resetting
Protection Short-circuit proof
Island bus connector on
side
Protection against faulty wiring with
AC 24 V
No electric protection.
Use the terminal cover.
KNX PL-Link interface Standard IEC 14543-3
Communications
Interface type KNX, galvanically separated
Transceiver TP-UART
Baud rate 9.6 kbps
Bus power supply
Nominal voltage DC 29 V
Max. supply
Note: for devices with higher power
requirement, use the output AC 24 V
2 A, see above.
160 mA for max 32 devices with KNX
PL-Link. Default: Auto detection; must
be turned off via ABT if external bus
supply is used.
Up to 64 devices with KNX PL-Link can
be operated using one or two external
bus supplies.
Protection Short-circuit proof
Protection against miswiring up to AC 24 V
DALI interface
Communications
Interface type
DALI, galvanically separated
Baud rate 1.2 kBit/s
Insulation strength Basic insulation for 230 V (1.5 kV)
Suitable for installations in overvoltage
category III (4 kV).
Dali-2 certification
General requirements
System components
Control devices
PXC3.E…A-200A only:
IEC 62386-101
IEC 62386-103
Bus power supply
Nominal voltage DC 16 V
Guaranteed supply current
128 mA (PXC3.E…A-100A)
230 mA (PXC3.E…A-200A)
Maximum supply current
250 mA
Shutdown mechanism
Shutdown delay time
Restart period
PXC3.E…A-200A only:
700 ms
10 s
Protection Short-circuit proof
Upon power-on, AC 230 V bus voltage is
recognized on terminals DA+ and DA–.
NO operation with external bus power supply admitted.
NO protection against miswiring with AC 24 V or AC 230 V:
Vol
t
a
ge between
DA+ / DA+ or between DA
–
/
DA
–
will destroy
the
devi
ce
!