Teldat 3ge Installation Manual page 10

1 Installing the Router
Fig. 7: LAN Connector
1.2.4.2 Connecting the Teldat-3Ge
The Teldat-3Ge has one or two connectors for external SMA RF antennas, which improve the quality of the signal
received and transmitted through the WWAN module.
There are various cellular telephony technologies that use antenna diversity to improve the received signal (HSUPA,
CDMA EV-DO, etc.). Two WWAN connectors can be incorporated for this.
Scenario without diversity
Figure 8 shows the location of the antenna connector on routers that don't use antenna diversity.
Fig. 8: Rear panel. Antenna connector for Wireless WAN (without diversity)
Scenario with diversity
Figure 9 shows the location of antenna connectors on routers that use antenna diversity.
Fig. 9: Rear panel. Antenna connector for Wireless WAN (with diversity)
In routers with two WWAN antenna connectors ( Main and Aux), we recommend, as a general rule, installing both an-
tennas. You must always ( mandatory) install the Main connector antenna. The Aux connector antenna is optional in
some routers, depending on the technology used (e.g. Sierra Wireless HSUPA or Qisda H20 and H20D). However,
in all cases we recommend installing an antenna in the Aux connector for diversity. In routers where the Aux antenna
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Teldat S.A.
Teldat-3Ge Installation Manual