Connected IO Inc., CONFIDENTIAL
21
CIO Router: ER2500T-XX-CAT1 User Manual
Revision: 4.0
7.
Antenna
7.1.
Detachable Antennas
This M2M Router device, ER2500T-NA-CAT1 and ER2500T-VZ-CAT1, integrates an LTE (4G) and WiFi
radio function. Is uses an external antenna (dipole antenna) and a standard antenna connector (SMA
type) which is not covered under FCC 15.203 requirements. Therefore, this equipment needs to be
installed by a professional technician since the M2M application usually resides inside other equipment
where the end-user cannot change the external antennas easily.
7.2.
Detachable Antenna Guidelines
This equipment complies with the FCC and IC radiation exposure limits set forth for an uncontrolled
environment. The antenna should be install and operated with a minimum distance of 20cm between the
radiator and the human body.
Antenna gain must not exceed the limits in the following table:
Frequency Band
ER2500T-NA-CAT1
ER2500T-VZ-CAT1
700 MHz
6.6 dBi
6.9 dBi
850 MHz
6.6 dBi
N/A
1700 MHz
6.0 dBi
6.0 dBi
1900 MHz
8.5 dBi
9.0 dBi
7.3.
Antenna
–
Installation Guidelines
When installing the antenna to The Router product line there are many items to consider so good antenna
performance can be maintained.
•
Install the antenna in a place covered by the LTE signal.
•
Antenna must not be installed inside a metal case.
•
Antenna shall also be installed according to the Antenna manufacturer instructions.
•
Antenna integration should optimize the Radiation Efficiency. Efficiency values >50% are
recommended on all frequency bands for any antennas selected.
•
Antenna integration should not dramatically perturb the radiation pattern. It is preferable to get,
after antenna installation, an omnidirectional radiation pattern for the best overall coverage.
•
Antenna Gain must not exceed values indicated in the regulatory requirements in order to meet
related EIRP limitations.
o
Typical antenna Gain in most M2M applications should not exceed 2dBi.
•
At least 20cm of separation distance between the antennas, the collocated router transmitters, and
the human body must be maintained always.
