R U/L/H Series
User Guide, Rev. 00 (May 2015)
9
1
General presentation
1.1
Front panel
1.2
Back panel
1.3
External connections
1.3.1
Interfaces and connectors
1.3.1.1
GSM antenna connector
SMA antenna connector placed on front panel is used to connect external GSM. To establish
connection with GSM network an external antenna must be used. Type of antenna depends on GSM
coverage. In good circumstances (level of received signal is high) use antenna which is attached in
the package. If range of GSM is low or none, an outdoor directional/omnidirectional or indoor (for
instance in place where GSM range is sufficient) antenna should be used.
Note:
If there is no antenna connected to SMA connector, the connection with GSM network is
impossible.