Digi LR54 User Manual page 103

Interfaces
automatically fails over to SIM2. LR54 devices automatically use the correct cellular module firmware
for each carrier when switching SIMs.
Configure cellular modem
Configuring the LR54's cellular modem involves configuring the following items:
Required configuration items
Enable the cellular modem.
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The cellular modem is enabled by default.
Determine the SIM slot that will be used when connecting to the cellular network.
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Configure the maximum number of interfaces that can use the modem.
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Enable carrier switching, which allows the modem to automatically match the carrier for the
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active SIM.
Carrier switching is enabled by default.
Configure the access technology.
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Determine which cellular antennas to use.
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Additional configuration items
If Active SIM slot is set to Any, determine the preferred SIM slot.
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In the event of a failover to a non-preferred SIM, or if manual SIM switching is used to switch to
a non-preferred SIM, the modem will attempt to reconnect to the SIM in the preferred SIM slot.
To configure the modem:

Web
1. Log into Digi Remote Manager, or log into the local Web UI as a user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in
device.
b. Click the Device ID.
c. Click Settings.
d. Click to expand Config.
Local Web UI:
a. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.
LR54 User Guide
Use Digi Remote Manager to view and manage your
Wide Area Networks (WANs)
103