10/16
Siemens
RXB21.1, RXB22.1 Room controllers
CM2N3873en_06
Building Technologies
02 Apr 2010
Ports/interfaces
Interface to room unit
Number of room units connectable
1
Interface type
for room unit
for ETS3 Professional / ACS
PPS2
KNX / EIB bus
PPS2 baud rate
4.8 kbit/s
Baud rate on KNX / EIB bus
9.6 kbit/s
KNX / EIB bus
Interface type
KNX / EIB (electrically isolated)
Transceiver TP-UART
Bus current
5 mA
Baud rate
9.6 kbit/s
Bus topology
Refer to KNX / EIB manual
(Reference documentation, see below)
Cable connections
Connection terminals for signals and power supply
(plug-in screw terminals)
Solid or stranded conductors
0.25 … 2.5 mm
2
or 2 x 1.5 mm
2
KNX / EIB bus connection terminals
(plug-in screw terminals)
Solid or stranded conductors 2 x max.1.0 mm
2
e.g. YCYM 2x2x0.8
Single cable lengths
For field devices, see also the RXB & RXL
installation guide, CM110381
Signal inputs D1, D2
Max. 100 m with diameters
0.6 mm
Measured value input B1
Max. 100 m
AC24 V triac outputs , Y1 … Y4
Max. 100m where A
1.5 mm
2
Relay outputs Q14, Q24, Q34, Q44
Depends on load and local regulations
Interface to room unit
Max. 115 m where A= 0.75 mm
2
(including connecting cable for tool)
Cable type
4-core, twisted pair, unscreened
KNX / EIB bus
Max. 500 m
Cable type
Refer to KNX / EIB manual
(see "Reference documentation" below)
Tool connecting cable
Max. 3 m
Housing
protection standard
Protection standard to EN 60529
IP30 with terminal cover fitted and
wall mounted without DIN rail
IP20 for all other mounting arrangements
Protection class
Suitable for use in systems with protection class I or II
Ambient conditions
Normal operation
Class 3K5 to IEC 60721-3-3
Temperature
0 ... 50 °C
Humidity
< 85 % rh
Transport
Class 2K3 to IEC 60721-3-2
Temperature
– 25 ... 65 °C
Humidity
< 95 % rh
Standards and directives
Product safety
Automatic electronic controls for
household and similar use
EN 60730-1
Electromagnetic compatibility
Immunity (industrial & domestic)
EN 60730-1
Emissions (domestic)
EN 60730-1
Home and Building Electronic Systems (HBES)
EN 50090-2-2
Electronic individual zone control equipment
EN 15500
compliance
Meets requirements of EMC Directive
2004/108/EG
Low Voltage Directive
2006/95/EG
C-Tick conformity (EMC)
AS/NZS 61000-6-3
Konnex compliance
Certified
eu.bac
: Meets the requirements for eu.bac
certification
License numbers 20856, 20853
as per the product list at:
Reduction of hazardous substances 2002/95/EC
Dimensions
See dimension diagrams
Weight
excluding packaging
0,640 kg
including packaging
0.670 kg
Reference documentation
Building Services Management Manual – Fundamental principles, and ... – Applications
Zentralverband Elektrotechnik- und Elektronikindustrie e.V. (ZVEH) (Central association for the
electrical and electronic engineering industry), Stresemannallee 19D-60596 Frankfurt a. M, Germany.