Kaelus Launches Rail Cab Filter to Support Public Mobile Networks

  Kaelus Launches Rail Cab Filter to Support Public Mobile Networks

Filters mitigate the blocking of GSM-R signals by public mobile networks

Business Wire

EDINBURGH, Scotland -- February 19, 2013

Kaelus, a Smiths Interconnect business, announces the availability of a
high-performance filter product for GSM-R applications. As an industry leader
in low-PIM solutions, Kaelus’ experience and understanding of the radio
environment enables it to excel by developing technically differentiated
offerings that improve network performance.

The new GSM-R product developed by Kaelus solves the potential problem of
public mobile signals interfering with rail communications and traffic
management systems.

As part of creating a single Europe-wide standard for railway signalling, the
European Rail Traffic Management Systems (ERTMS) initiative was created. One
of the main components of ERTMS is GSM-R, a secure wireless communications
technology developed specifically for railway communications and applications.
GSM-R is the technology used to communicate voice and data to the train
driver.

The GSM-R radio spectrum is adjacent to and therefore susceptible to
interference from public mobile networks in the 900MHz spectrum. Kaelus has
been working with key contributors to a European International Union of
Railways (UIC) working group investigating the effects. The UIC has reported
that at least 15 rail network providers have identified levels of interference
and areas of complete signal blocking due to public mobile phone networks.
With public network operators being restricted in their signal power levels in
the spectrum closest to GSM-R, the interference problem is expected to
increase with the deployment of high data rate broad spectrum 3G and 4G
infrastructure in the same 900MHz Spectrum.

To attenuate the public blocking signals, Kaelus has developed a
high-performance Cab Radio dual duplexer filter using leading-edge ceramic
technologies which provide a high level of rejection of the public mobile
signals. An additional switching feature can be supplied to allow the product
to be by-passed when roaming to the public mobile network if desired in less
congested network areas.

The Kaelus product has been trialed by several rail operators and is
available. For more information, Download the Datasheet.

About Kaelus

Kaelus www.kaelus.com, a Smiths Interconnect business formed by consolidating
a number of previously independent Smiths brands, which designs and
manufactures a wide range of innovative RF and microwave solutions for the
wireless telecommunications sector. Products include specialized filters and
other products for conditioning RF signals. Kaelus’ experience and
understanding of the RF environment enables it to excel by developing
technically differentiated offerings that improve network performance.

About Smiths Interconnect

Smiths Interconnect www.smithsinterconnect.com is a leader in technically
differentiated electronic and radio frequency products that connect, protect
and control critical systems for the wireless telecommunications, aerospace,
defense, space, medical, rail, test and industrial markets. It is part of
Smiths Group www.smiths.com, a global leader in applying advanced technologies
for markets in threat and contraband detection, energy, medical devices,
communications and engineered components. Smiths Group employs around 23,000
people in more than 50 countries.

Contact:

Kaelus
Marsha Marrier, +1-303-768-8080
Marketing Communications
or
Smiths Interconnect
Shaun Caraccio, +1-805-370-5592
VP Business Development & Strategy