Lte/Umts Antenna Port Types - NetModule NB3710 User Manual

NB3710
User Manual for NRSW version 4.4
The following table shows how to connect the LTE/UMTS antennas. Generally, LTE antennas use both,
main and auxiliary ports, but UMTS requrires only main ports.
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 mobile inerface transmit simultaneously with other collocated radio transmitters
the separation distance of 20 cm between the antennas must be maintained at all
times.
– 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.
– Mobile communications antennas may have an amplification of maximum 2.5dBi, in-
cluding the cable attenuation, in the relevant frequency range.
Antenna Port
Mob 1 (Top)
Mob 1 (Bottom)
Mob 2 (Top)
Mob 2 (Bottom)
Table 4.1.: LTE/UMTS antenna port types
38
Type
Main
Auxiliary
Main
Auxiliary