Installation Of The Gsm/Umts Antenna; Installation Of The Wlan Antennas; Installation Of The Local Area Network - NetModule NB2700 User Manual

NB2700 User Manual
SIMs can be assigned flexibly to any modem in the system. It is also possible to switch
a SIM to a different modem during operation, for instance if you want to use another
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 GSM/UMTS Antenna

NetModule routers will only operate efficiently in the cellular network if there is a good
signal. The stub antenna will be suitable for most applications. However, in some
circumstances it might be necessary to use remote antennas together with an extended
cable to reach a better location offering an adequate signal. In doubt, please contact us
and we would be pleased to assist you in figuring out the best matching antenna setup
for your application.
Keep in mind that effects caused by Faraday cages such as large metal surfaces (elevators,
machine housings, etc.), close meshed iron constructions and others may reduce signal
reception significantly.
The antenna or antenna cable has to be mounted to the connector and
Mobile 1
should be fixed with a wrench. The antenna for the second modem (if present) should
be connected to Mobile 2 .

4.5. 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.

4.6. 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.
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