Data Sheet for Product

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Siemens PXC3.E... Room automation stations CM1N9203en_08
Smart Infrastructure 2020-10-30
Installation
See planning manual Desigo Room automation, CM111043.
Island bus Polarity: If a TXS1.12F10 supply module is connected to output
24 V, do not invert ~ and ^.
The devices are not damaged but island bus communications will not work.
Operation
If island bus or USB communications do not work, this is an indicator that the
AC 24 V operating voltage is incorrectly wired (conductors ~ and ⏊ inverted).
Technical data
Operating voltage
(24V~, ^ )
Safety extra-low voltage SELV or
protection by extra-low voltage PELV
Half-wave load
AC 24 V -15% / +20%
48...63 Hz
Symmetric
Operating data Processor Texas Instruments AM3352, 600 MHz
Memory 512 MB SDRAM (DDR3)
512 MB NAND Flash
Power consumption Max. permissible input current
AC 24 V (through terminals 5 and 6)
Total max. 10 A
(Ext. fusing compulsory: max. T 10 A
melting fuse or max. C 13 A circuit
b
reaker)
Base load (without loading by modules
and field devices)
8 VA / 0.33 A
Island bus supply *) 30 VA / 1.25 A
KNX PL-Link supply *) **) 12 VA / 0.50 A
DALI supply *) ***) 9 VA / 0.37 A (PXC3.E...A-100A)
16 VA / 0.61 A (PXC3.E...A-200A)
*) The bus supplies can be switched off via tool if not used.
**) The KNX PL-Link supply MUST be switched off via tool if an external
bus supply is used.
***) When DALI bus supply is switched off then the DALI interface is disabled too
Transit power AC 24 V
TX-IO (island bus)
KNX PL-Link: AC 24V
(terminals 3, 4)
AC 24 V / 6 A
(terminals 7 and 8, for additional
AC 24 V consumers)
144 VA / 6 A
48 VA / 2 A
144 VA / 6 A
(only if the sum of 10 A at terminals
5 and 6 is not exceeded)
Fusing of the supply
outputs for field supply
AC 24 V / 2 A (KNX PL-Link,
terminals 3 and 4)
PTC resistor, short-circuit proof
Caution!
AC 24 V (terminals 7 and 8) No internal fusing
Island bus conductor V~ M 10 A fuse (Medium time lag,
exchangeable)
Response to power /
communication failure
· Energy reserve (supercap) to support real-time clock (3 days).
· Start-up time after power failure: approx. 90 s
STOP
Note!