Radiocrafts Intros KNX-RF Multi Module for Building Automation
-- RC1180-KNX2 Product Brief
September 22, 2011 - Radiocrafts AS, a leading provider of compact RF modules, now has expanded their product
line with a new module complying with the KNX-RF Multi specification. KNX is the only open international standard
for Home and Building Control, used in Smart Home, Building Automation and Building Management Systems.
RC1180-KNX2 is the world's first RF module including a complete KNX-RF Multi protocol stack.
Multi is an extension of the European Norm for building automation adding redundancy and increased reliability.
The main features of the new Multi standard is; frequency agility by using up to 5 frequencies, fast link
acknowledgement of up to 64 receivers with automatic retransmission, and multi-hop repeaters extending the range
by two hops. Battery operated transmitters and receivers are also supported by the new standard. The embedded
protocol is backward compatible with KNX-RF 1.1 and KNX Ready, and can be used for unidirectional and
The new module is designed for sensors, actuators and other home and building
automation equipment. Due to its small size, easy to use interface, complete embedded protocol and low power
consumption, it can easily be integrated into any product making a very cost efficient solution.
Radiocrafts is a member of the KNX Association and has participated in the development of the new standard. KNX is
one of the leading standards for home and building control. The interest for such systems is increasing, meeting
the demands for energy saving technology. Studies have shown up to 50% energy savings using KNX technology.
is also considered as one of the leaders in Wireless M-Bus technology, and the new KNX product series gives the
customers an easy transition to KNX with compatible products. Interoperation between Wireless M-Bus and KNX-RF is
also possible using the new module.
The module operates in the 868 MHz band, using Listen Before Talk (LBT)
and frequency agility to reduce collisions. Up to 5 frequencies are scanned and automatically selected. One
receiver can be linked with up to 64 transmitters, enabling very large RF networks. The fast acknowledge and
retransmission feature ensure link reliability. Complete repeater functionality is also built in the protocol
stack, and can retransmit messages in two hops. It can be used with S, A and E modes of installation. Among other
features, the module offer automatic battery supervision and signal strength information.
RC1180-KNX2 is a surface-mounted high performance transceiver module measuring only 12.7 x 25.4 x 3.3 mm. A UART
interface is used for serial communication and configuration. An antenna is connected directly to the RF pin. The
RC1180-KNX2 module is certified for operation under the European radio regulations for license-free use. When used
with quarter-wave antennas a line-of-sight range of 800 meter can be achieved.
By launching the first
KNX-RF Multi module in the market, Radiocrafts has again demonstrated their technological leadership in embedded
wireless solutions. KNX-RF Multi is a green technology, enabling smart building automation systems that help to
reduce energy consumption. Together with Wireless M-Bus, the standard for remote energy meter reading, these are
technologies promising a better future.
The trend in building automation is to go wireless due to lower
installation cost, ease of use and flexibility. Building equipment manufacturers and building management system
integrators can now get a complete KNX-RF solution in a small compact module form-factor that is easy to integrate
into any sensor or actuator, and which significantly reduce time-to-market, development and compliance testing
The module and Demo Kits are available now. The module is delivered on tape and reel for volume production.
Peder Martin Evjen, M.Sc.E.E.
Switchboard: (+47) 4000 5195
Mob: (+47) 970 86 676
Fax: (+47) 22 71 29 15