NB3000-Line-Hd User Manual 4.2
better diversity and thus better throughput and coverage, we highly recommend using two
antennas.
Antenna Port
Type
WLAN 1
A7
Main
WLAN 1
A8
Auxiliary
WLAN 2
A5
Main
WLAN 2
A6
Auxiliary
Table 4.2.: WLAN antenna port types
Attention:
Following points must be observed when installing the antennas:
• A minimum clearance of at least 40 cm between people and the antennas
must always be ensured.
• If one WLAN inerface transmit simultaneously with other collocated radio
transmitters the separation distance of 20 cm between the antennas must
be maintained at all times.
• WLAN antennas must only be installed in buildings or within vehicle hulls.
• WLAN antennas may have an amplification of maximum 3dBi in the rele-
vant frequency range. WLAN antennas with a higher amplification may be
used with the NetModule router "Enhanced-RF-Configuration" software li-
cense and the antenna gain and cable attenuation that have been correctly
configured by certified specialized personnel.
4.4. Installation of the GNSS Antenna
The GNSS antenna must be mounted to the connector
GNSS
. Whether the antenna is an
active or passive GNSS antenna has to be configured in the software. We recommend active
GNSS antennas for highly accurate GNSS tracking.
Attention:
Following points must be observed when installing the antenna:
• A minimum clearance of at least 40 cm between people and the antenna
must always be ensured.
• Antennas which are installed outside a building or the vehicle hull must limit
transient overvoltages (according to IEC 62368-1) to below a peak of 1500 V
through external protection circuits.
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