Atlas Copco Tensor STB - IRC Technology

System overview
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2.2.3 IRC
The Industrial Radio Communication (IRC) technology
operates on the free 2.4 GHz ISM band and also the
5.0GHz band (Uniband I and II).
The Tensor STB tool is available in two different versions
for the different IRC standards:
 IRC-B
 IRC-W
The table below gives an overview of the different standards.
Technique
Latency
Immunity
Multipath
Immunity
Interference
Immunity
Power
Consumption
IRC-B
High
High
High
Low
IRC-W
Moderate
Moderate
Moderate
High
The performance of IRC-W is highly dependent on the infrastructure at the site.
Latency defines the delay times of the communication link i.e. when transferring tightening results. The
multipath immunity indicates how well the reflections in the environment are handled, for example against
walls or equipment. The interference immunity indicates how well other radio sources are avoided.
IRC-B
 79 (1 MHz) channels.
 IRC-B features dynamic Adaptive Frequency Hopping (AFH).
 No frequency planning needed.
Figure 5 IRC-B with AFH avoids collisions on the 2.4 GHz ISM band, for example Wi-Fi
More information at: www.bluetooth.com.