Data Sheet for Product

RS485 room bus
(terminal block X12)
As a maximum, the following room devices can be connected to the room controller via
the room bus:
− 5 room operator units
− 4 card readers
− 4 card holders
Cable: 2 twisted pairs, max. 0.5mm
2
screened
Wiring
Recommendation: There is normally no need to earth the cable screen.
If the bus cable is routed parallel to mains cables over long distances, we recommend
that the bus cable should be connected, at a point near the room controller, to the
protective earth conductor.
STOP
Caution
Adequate EMC precautions must be taken when installing the equipment.
The room bus and building bus conductors must not be routed in the same
conduit as high voltage conductors.
Commissioning
• Before commissioning, the room controller address (EIB address) must be set from a
laptop computer (tool) or an operator unit (external operator/monitoring unit)
connected to service socket X13.
• The controller must be connected to the supply voltage for this purpose.
• In the case of customer-specific applications, the customized application software
must be downloaded either from a laptop connected to service socket X13 or via the
building bus.
• The application can be downloaded to individual room controllers while the bus is in
normal operation.
• The room controllers are already loaded with the standard application on delivery.
It is then only necessary to adjust the parameters with the commissioning software.
• Settings: DIL1 = OFF for transponder card access or DIL1 = ON for magnetic card
access.
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Siemens HRC3.1 – Room controller CM2N6313en
Building Technologies 01.09.2008