EW50 Industrial LTE Cellular Gateway
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SIM-A/SIM-B only: When “SIM-A Only” or “SIM-B Only” is used, the specified SIM slot card is the only one
used for negotiation parameters between the gateway device and cellular ISP.
SIM-A / SIM-B first without Failback enabled
By default, the “SIM-A First” scenario is used to connect to cellular ISP for
data transfer. In the case of “SIM-A First” or “SIM-B First” scenario, the
gateway will try to connect to the Internet by using SIM-A or SIM-B card
first. If the connection is broken, the gateway will automatically switch to
use the other SIM card as an alternate and will not switch back to use
original SIM card except when the current SIM connection is also broken.
That is, SIM-A and SIM-B are used iteratively, but either one will keep
being used for data transfer when current connection is still alive.
SIM-A / SIM-B first with Failback enabled
With Failback option enabled, “SIM-A First” scenario is
used to connect when the connection is broken, gateway
system will switch to use SIM-B. And when SIM-A
connection is recovered, it will switch back to use the
original SIM-A card
Configure 3G/4G WAN Setting
When the Edit button is applied, Internet Connection Configuration, and 3G/4G WAN Configuration screens
will appear. WAN-2 interface is used in this example.
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General