4RF Aprisa LTE, Руководство пользователя

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Managing the LTE | 85
Aprisa LTE User Manual 2.1
Cellular > Carrier/Redundancy
This page provides setup of the Carrier Redundancy settings.
REDUNDANCY SETTINGS
Link Failure Timeout (s)
This parameter sets the duration time (in seconds) to switch to the next lower priority PDN if active PDN
data connection is lost or link health check fails for the duration of this timeout. The first PDN in PDN profile
settings (see Cellular > General) obtain the highest priority and subsequent are lower priority with the last
one as the lowest priority PDN. If only a single PDN configured and fails, then connection to it shall be re-
attempted after this timeout. The duration time is unlimited and 0 disables the switching option. The default
value is 180 seconds (3 minutes)
Roaming Timeout (s)
This parameter sets the timeout that the connection can be on a roaming network before it automatically
switches to a secondary (next lower priority) PDN. If after switching, the secondary PDN network is not
available for the
‘ initial scan timeout ’ duration, then the connection return to the roaming service network
for another roaming timeout time. The roaming timeout value is unlimited, but the recommended range is
between 600
– 15,000 seconds. The default value is 600 seconds (10 minutes).
Revert Timeout (s)
This parameter sets the timeout that the connection can be on a secondary (next lower priority) PDN
network profile before it automatically reverts to either the primary or next higher priority PDN network
profile depending on Revert Mode option. If the timeout value is set to 0, then the revert function will be
disabled. If after reverting, the primary PDN network is not available for the
‘ initial scan timeout ’ duration,
then the connection return to the secondary PDN network for another revert timeout time. The revert
timeout value is unlimited. The default value is 3,600 seconds (60 minutes).