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Siemens QAX33.1 – Room unit with PPS2 interface CA2N1642en_02
Building Technologies 30 Jun 2009
Ambient conditions IEC 721 Operation Transport
Ambient air conditions Class 3K5 Class 2K3
Temperature 0 ... 50 °C – 25 ... 70 °C
Humidity < 85 %rH < 95 %rH
Mechanical conditions Class 3M2 Class 2M2
Standards and directives Product standard Automatic electronic controls
for household and similar use
EN 60730-1
Electromagnetic compatibility
Immunity (industrial & domestic)
EN 60730-1
Emissions (domestic)
EN 60730-1
compliance
Meets requirements of EMC directive
2004/108/EC
UL compliance
UL916
C-Tick conformity (EMC)
AS/NZS 61000-6-3
Environmental compatibility The product environmental declaration
CA2E1641 contains data on RoHS compli-
ance, materials composition, packaging,
environmental benefit, disposal
ISO 14001 (Environment)
ISO 9001 (Quality)
2002/95/EC (RoHS)
Dimensions See “Dimensions”
Color Housing front, dial NCS S 0502-G, RAL 9003 signal white
Housing, base unit, rocker switch RAL 7035 light grey
Weight Excluding packaging 0.12 kg
Connection terminals
The tool socket on the room unit provides access to the connected individual room
controller via the commissioning and service tool or the service terminal.
The bus cable (Terminals 3 and 4) is therefore looped to the tool socket (Pins 1 and 2).
The bus cable is not affected by the room unit.
For connection of a service terminal, the PPS2 interface (Terminals 1 and 2) is also
connected to the tool socket.
87654321
C–
C+
CP–
CP+
80085
PPS2 interface, supply voltage
CP+ 1 Device supply, Data PPS2 (pos.)
CP– 2 Device supply, Data PPS2 (neg.)
Bus connection (looped to tool socket)
C+ 3 With L
ONWORKS® bus (DESIGO RXC): CLA
C– 4 With L
ONWORKS® bus (DESIGO RXC): CLB
5 ... 8 Not used
Standard type RJ45 tool socket.
1
3206Z01
2345678
1. With LONWORKS® bus (DESIGO RXC): CLA
2. With L
ONWORKS® bus (DESIGO RXC): CLB
3. Not used
4. Not used
5. Not used
6. Not used
7. CP+ Data PPS2
8. CP– Data PPS2
Terminal layout
Tool socket
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