Networking

The wireless access sensor reports any
unauthorised access.
The modular CMC-TC system allows security
solutions to be compiled individually, including
the use of wireless sensors.
Rittal IT News/Security
The sensors may be protected from humidity
via the IP protective cover.
Flexible
The use of radio sensors is appropriate whenever direct cabling
between the sensor and I/O Unit is too time-consuming or too difficult
to implement, e.g. for outdoor cabling, or in inaccessible places
in the server rack or within the IT infrastructure of data centres
(indoors). This eliminates the need for cabling, and the system is
easily retrofitted while operational. There is no need to lay any cable
trunking or modify the IT infrastructure. The position of the measuring
point may also be altered retrospectively by simply moving the
sensor.
By connecting the Wireless I/O Unit to the existing CMC-TC monitoring
system, the system may be extended in a modular and flexible
manner. In order to optimise radio links, an external aerial may
optionally be used on the Wireless I/O Unit. Similarly, the transmission
and reception range may be flexibly extended using additional
Wireless I/O Units as repeaters.
Plug and play compatibility system
The wireless sensor network is easily set up using plug & play installation.
By means of a simple commissioning procedure comprised of a
learning mode and learning key, the sensors are taught by the Wireless
I/O Unit via plug & play. Rittal offers a wireless measurement
system with digital display for identifying the optimum radio connection
for the assembly site. This measurement system has the same
design as the sensors and may be connected to the reference location
of the sensor for test purposes.
Security
CMC-TC wireless sensor network
Robust
The wireless sensor network may be used in racks, bayed enclosure
suites, IT rooms, buildings, production plants, storage halls,
industrial plant or outdoors. It is also suitable for use in inter-disciplinary
applications.
The Wireless I/O Unit and the CMC-TC monitoring system must be
installed in a Rittal enclosure with a corresponding protection category
to suit the application. The sensors may be used with the IT
protective cover.
Long service life
The wireless sensors have a high-capacitive, long-life 3.6 V lithium
primary cell. Depending on the sensor type, application and ambient
temperature, a battery life of up to 5 years is achievable. The
battery cell is continually monitored by the system. It is also possible
to replace the battery.
Thanks to the modern chirp radio transmission system, an exceptionally
low level of energy consumption is achieved; while in sleep
mode, the current rating is in the micro-ampere range, thereby facilitating
a long battery life.
Secure
Radio transmission occurs within the ISM band of 2.4 – 2.48 GHz,
which is not subject to licensing by the end user.
Using so-called chirp impulses (broadband transmission) for radio
transmission produces a high level of protection from interference
with other radio systems on the same frequency range, such as
WLAN, ZigBee, Bluetooth. Additionally, the integral encryption of
radio telegrams offers a suitable level of protection from unauthorised
monitoring of the data transmission.
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Innovations