overview of the project

0554-EX-ST-2014 Text Documents

Intellisaw, Inc

2014-06-25ELS_150593

Description of the project

IntelliSAW manufactures components and subsystems that are integrated into OEM
products and retrofit into fixed locations by professional installers in accordance with
local regulations. The systems generate RF fields internal to a metal enclosed cabinet
for the purpose of continuously monitoring the high voltage contacts of power control
equipment in power utilities, industrial controls and so forth.
IntelliSAW seeks to make this process more streamlined based on an approach
recommended by the Dutch Telecom Agency and parallel to previously published FCC
guidelines for field testing of typical installations of systems comprising unintentional
radiators.
The IS485 system is a low power device that is capable of being operated between
425MHz and 442MHz with a conducted power of up to 10dBm. While operation of the
system is not intended to be in open air, but rather in a completely enclosed metal
cabinet, the open air transmission of the system has been characterized to certain
standards for demo units and to ease descriptions to international regulatory agencies.
The system has been characterized to be conformant with EN300-220-1 and capable of
operation compliant with the harmonized bands of the R&TTE. However such operation
allows only a single sensor while the power grid is three-phase. The system has also
capable of operation compliant with Part 15.231(e) transmit power limits and periodic
operation limits; however the allowed transmit power levels are inadequate for
measurement ranges compliant with the safe spacings required in high voltage
switchgear and only suitable for sales demonstration purposes.
Neither regulation is applicable to the intended use of the system, which is operation of
the device completely within the shielding enclosure of ANSI and IEC rated medium
voltage switchgear.
The purpose of the testing is to install the standard IS485 equipment in multiple “typical”
switchgear as defined in the accompanying description of test. It is expected that these
systems will all comply with CISPR11 class A cabinet radiation limits based on the
anticipated shielding of the typical switchgear and the internally generated RF energy.
The actual tests will be performed at one or more sites – some of which are indicated on
the accompanying jpeg map. It is expected that testing at these sites will confirm
CISPR11 compliant operation and that the site will then be allowed to operate without
license.

Document Created: 2014-06-02 16:15:10
Document Modified: 2014-06-02 16:15:10

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