Opengear OM1200 User Manual page 66

5. Click the Refresh button to display the current signal strength of the active SIM.
Note: When the Refresh button is clicked the signal strength is only updated
for the active SIM. If you would like to know what the other SIM Signal Strength
is, you need to activate it, let the modem come back online, which may take 3
minutes or more.
Installing A New SIM Card
Before installing a new SIM card, the OM device must first be powered down. This
can be done by switching off the power supply and waiting until the device has
shut-down. Install the new SIM card into its slot, then restart the device
Note: The device will not recognize the new SIM card unless a shut-down and
restart is performed. The new SIM card will be read during start-up.
CONFIGURE MENU 66