NORA-B1 series - System integration manual
UBX-20027617 - R02
Regulatory information and requirements
Page 39 of 58
C1-Public
EIRP is calculated as:
EIRP(dBm) = P
TX
(dBm) – L(dB) + G
TX
(dBi)
where P
TX
is the output power of the transmitter, L is the path loss of the transmission line between
the transmitter and antenna, and G
TX
is the maximum gain of the transmit antenna. Consider the
following for each of these components:
•
Output power:
o
The output power setting of the NORA-B1 module. An end-product user must not be able to
increase the setting above the 10 dBm EIRP limit, by sending configuration commands etc.
o
The operating temperature of the end-product. The output power of a transmitter is typically
increased as the ambient temperature is lowered. The operating temperature range of NORA-
B1 is
‒
40 to +105 °C, and across this range the output power can typically vary by 1 dB. The
output power at the lowest operating temperature (yielding the highest output power) must
be considered for the EIRP calculation.
•
Path loss – Long antenna cables or PCB traces, RF switches, etc. will attenuate the power reaching
the antenna. This path loss should be measured and taken into consideration for the EIRP
calculation.
•
Antenna gain - The maximum gain of the transmit antenna must be considered for the EIRP
calculation.
An integrator of the NORA-B1 series on the European market must make sure that an end user cannot
in any way configure the output power of the radio to 10 dBm EIRP or above.
6.1.4
Safety Compliance
⚠
To fulfill the EN 60950-1 safety standard, the NORA-B1 series modules must be supplied with a
Class-2 Limited Power Source.
6.2
FCC/ISED – US/Canadian markets
6.2.1
Compliance statements
The NORA-B1 series modules comply with Part 15 of the FCC Rules and with Industry Canada license-
exempt RSS standard(s). Operation is subject to the following two conditions:
1.
This device may not cause harmful interference, and
2.
This device must accept any interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that the
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to correct the interference using either one or more of the following
measures:
•
Reorient or relocate the receiving antenna
•
Increase the separation between the equipment and receiver
•
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
