User Manual

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Siemens RXB39.1 – Room controller CM2N3875en_08
Building Technologies 2016-05-18
The RXB39.1 room controller communicates with other devices via the following
interfaces:
• PPS2 interface (proprietary) for the exchange of data with the room units
• KNX bus (terminals CE+ and CE-) for communication with:
− PX/KNX interface (to Desigo Insight)
− Interface OCI700 / OCI702 (to Synco)
− Other RXB controllers
− Other KNX devices (e.g. field devices)
To facilitate commissioning, the tools ETS / ACS can be connected at three diffe-
rent points (marked (
A) in the diagram) in the plant:
− to the KNX bus cable at any point
− to the RXB39.1 controller (RJ45 tool socket)
− to the room unit (RJ45 tool socket)
A
A
A
A
A
B
B
• The tool socket is a proprietary socket.
A Siemens connecting cable must be used (e.g. PXA-C1).
When connected to Ethernet, the device on the other end may be damaged!
• The tools ETS and ACS, even if connected to a tool socket, require an interface:
− RS232-KNX interface (ETS)
− USB-KNX / EIB interface OCI700 / OCI702 (ETS, ACS).
• The "HandyTool" is connected to the tool socket of the room controller or to the
tool socket of the room unit (QAX…, RXZ90.1) (
B).
• If you use OCI700 / OCI702 as an interface, it is connected to the service plug of
the controller or of the room unit.
As long as the OCI700 / OCI702 is connected to the service plug, it must be
supplied by the computer via the USB interface. Otherwise the LCD display
of the room unit will turn dark and the controller will switch to addressing mode.
Communication
Connecting the tool
Notes
Caution!