5/6
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.
8
7
6
5
4
3
2
1
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
ON
W
ORKS
® bus (DESIGO RXC): CLA
C– 4 With
L
ON
W
ORKS
® bus (DESIGO RXC): CLB
5 ... 8
Not used
Standard type RJ45 tool socket.
1
320
6Z01
2 3 4 5 6 7 8
1. With
L
ON
W
ORKS
® bus (DESIGO RXC): CLA
2. With
L
ON
W
ORKS
® 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
