eTung MR-900T, Руководство пользователя

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MR-900T User Manual
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Appendix 6: APN Network Testing
Case
APN is the abbreviation of Access Point Name. It is used in operators’ core network
to identify the external data network, for example, enterprise intranet, Internet,
WAP website and enterprise’ internal networks. Using the APN SIM card, the
terminal dials up into a dedicated network predefined from the operator side, and
normally gets an internal IP address to access the network, this IP address cannot
be accessed from the internet. But the terminals that dial into the same dedicated
network can access each other. So we can easily implement the interconnection
between wireless terminals with operator’s APN networks, it’s very convenient and
can greatly reduce network access cost. There are two kinds of solutions to use APN
networks, and below are details for each of them.
Solution 1: Embedded Data Center with APN Network
eTung’s wireless routers support APN SIM card, and has embedded data center
function. For those small-scale projects with few terminals, use one router as the
data center, and dial into APN network; at the same time, all other terminals that
connect to devices at the far end dial into the same APN network, then from the
router’s data center we can access the terminals at the far end, thus implement
remote control of devices at the far end. This solution is cost-efficient, and can be
easily deployed; it’s flexible and convenient, and can be used especially in
small-scale (No. of terminals <=100) device control projects.
Figure Appendix 6-1: Embedded data center and APN network solution
Below we will illustrate how to deploy this solution, and use MD-609G as an
example for terminals at the far end.