Lte/Umts Antenna Port Types - NetModule NB3711 Software Benutzerhandbuch

NB3711
NRSW-Benutzerhandbuch - Version 4.6.0.100
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.
Antenna Port
MOB 1
MOB 1
MOB 2
MOB 2
MOB 3
MOB 3
MOB 4
MOB 4
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 interface 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.
A1 (top)
A2 (bottom)
A3 (top)
A4 (bottom)
A7 (top)
A8 (bottom)
A5 (top)
A6 (bottom)
Tabelle 4.1.: LTE/UMTS antenna port types
39
Type
Main
Auxiliary
Main
Auxiliary
Main
Auxiliary
Main
Auxiliary