Murata Electronics North America DNT2400 Manual Do Utilizador
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DNT2400 - 08/06/09
Important Regulatory Information
RFM Product FCC ID: HSW-DNT2400
IC 4492A-DNT2400
Note: This unit 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 when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the in-
struction manual, may cause harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at their expense.
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the in-
struction manual, may cause harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at their expense.
FCC Antenna Gain Restriction:
The DNT2400 has been designed to operate with any dipole antenna of up to 9 dBi of gain, or any patch
of up to 6 dBi gain.
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least
20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or
transmitter.
IC RSS-210 Detachable Antenna Gain Restriction:
This device has been designed to operate with the antennas listed below, and having a maximum gain of
9 dB. Antennas not included in this list or having a gain greater than 9 dB are strictly prohibited for use
with this device. The required antenna impedance is 50 ohms:
RFM OMNI249 Omnidirectional Dipole Antenna, 9 dB
RFM PA2400 Patch Antenna, 6 dB
RFM PA2400 Patch Antenna, 6 dB
To reduce potential radio interference to other users, the antenna type and its gain should be so chosen
that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful
communication.
See Section 3.10 of this manual for regulatory notices and labeling requirements. Changes or modifica-
tions to a DNT2400 not expressly approved by RFM may void the user’s authority to operate the module.
tions to a DNT2400 not expressly approved by RFM may void the user’s authority to operate the module.