CONFIGURATION
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Parameter Switch to backup SIM card when binary input is active enables switching
to secondary SIM card or secondary APN of the SIM card, when binary input ‘bin0’ is active.
Parameter Switch to primary SIM card after timeout enable defines the method, how
the router will try to switch back to default SIM card or default APN.
The following parameters define the time after which the router attempts to go back
to the default SIM card or APN. The first attempt to switch back to the primary SIM card or
APN shall be made for the time defined in the parameter Initial Timeout, range of this
parameter is from 1 to 10000 minutes.
In an unsuccessful attempt to switch to default SIM
card, the router on the second attempt to try for the time defined in the parameter
Subsequent Timeout, range is from 1 to 10000 minutes. Any further attempt to switch back to
the primary SIM card or APN shall be made in time computed as the sum of the previous
time trial and time defined in the parameter Additive constants range is 1-10000 minutes.
Example: If parameter Switch to primary SIM card after timeout is checked and
parameters are set as follows Initial Timeout – 60min. Subsequent Timeout 30min
a Subsequent Timeout - 20min.The first attempt to switch the primary SIM card or APN shall
be carried out after 60 minutes. Switched to a failed second attempt made after 30 minutes.
Third after 50 minutes (30 +20). Fourth after 70 minutes (30 +20 +20).
Parameter Initial Timeout sets the time after which the Router tries to make connection
with default APN, range of this parameter is from 1 to 10000 minutes. Parameter Subsequent
Timeout sets the time period for every other next attempt to make connection with default
APN, range is from 1 to 10000 minutes. Parameter Additive Constant sets the amount of time
which is added to every attempt at main connection establishment after unsuccessful defined
attempt (for example: Additive Constant is 15 minutes. After a second unsuccessful attempt at
main connection establishment time of next attempt is extended by about 30 minutes etc.).
Range is from 1 to 1000 minutes.
In the bottom part of the window it is possible to define access over CSD connection
by Enable Dial-In Access function. Access can be secured by used the Username
and Password. When the router is in offline mode, the router is permanently available via
CSD connection.
In the last part of the window, is possible to switch on the PPPoE server by checking
off Enable PPPoE bridge mode. Then server waits for client from ethernet. After connection,
router sets the PPP connection over GPRS. Router then act as a transparent bridge between
PPPoE and PPP.
Attention! We recommend checking the GPRS connection in case of uninterrupted
running.
Annotation:
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MTU (Maximum Transmission Unit) – it is the identifier of the maximum size of
packet, which is possible to transfer in a given environment.
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MRU (Maximum Receiving Unit) – it is the identifier of the maximum size of
packet, which is possible to receive in a given environment.
Default value is 1500 bytes. Other settings may cause incorrect transmission of data.
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