Installation Of The Wlan Antennas; Installation Of The Local Area Network; Installation Of The Power Supply - NetModule NB3720 User Manual

NB3720 User Manual 3.8
provider upon a certain condition. However, a SIM switch usually takes about 10-20
seconds which can be bypassed (e.g. at bootup) if SIMs are installed reasonably. Using
only a single SIM with one modem, it should be preferably placed into the SIM 1 holder.
For systems which should operate two modems with two SIMs in parallel, we recommend
to assign Mobile 1 to SIM 1 and Mobile 2 to SIM 2.
Further information about SIM configuration can be found in chapter 5.3.3.

4.4. Installation of the WLAN Antennas

Any WLAN antennas must be mounted to the connectors WLAN1 and WLAN2. The
number of attached antennas can be configured in the software. If only one antenna is
used, it must be attached to WLAN1. However, for better diversity and thus better
throughput and coverage, we highly recommend using two antennas.

4.5. Installation of the Local Area Network

Up to two 10/100 Mbps Ethernet devices can be directly connected to the router, fur-
ther devices can be attached via an addtional Ethernet switch. Please ensure that the
connector has been plugged in properly and remains in a fixed state, you might other-
wise experience sporadical link loss during operation. The Link/Act LED will lit up as
soon as the device has synced. If not, it might be necessary to configure a different link
setting as described in chapter 5.3.2.

4.6. Installation of the Power Supply

The router can be powered with an external source supplying between 12 V and 48 V .
DC DC
It is to be used with a certified (CE or equivalent) power supply, which must have a
limited and SELV circuit output. The router is now ready for getting engaged.
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