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CBA750B | USER MANUAL Firmware version 5.0
CRADLEPOINT
Modem Signal Strength: The bar LEDs indicate the signal strength from the active 3G/4G modem (CradlePoint
business-grade modem or USB/ExpressCard modem). Pushing this button toggles the display on and off. The signal
strength is shown for 10 seconds if the modem does not support concurrent data connection and signal strength
measurement. A blinking LED indicates ½ bar.
LAN Port: The CBA750B has one Ethernet port for a local network connection. Use this for connectivity and also for
Power-over-Ethernet (optional).
Power On/Off:
• I = On
• O = Off
DC Power Port: Attach the included power supply.
Reset: Return your CBA750B to factory default settings by pressing and holding the Reset button. This button is
recessed, so it requires a pointed object such as a paper clip to press. Press and hold for 10 seconds to initiate reset. This
erases configuration changes and resets the administrator password to the Default Password found on the product label.
USB/ExpressCard Modem Ports: The CBA750B has two USB 2.0 ports and one ExpressCard port.
Router/Passthrough Switch:
• I = Passthrough mode – Forces complete IP passthrough configuration.
• O = Router mode – Allows normal configuration options for the router.
The CBA750B ships with the Router/Passthrough Switch set to IP passthrough mode. In IP passthrough mode, all
of the following settings are pushed to the router:
• Load balance is disabled; the highest priority WAN device is used.
• The Routing Mode is set to IP Passthrough. (Network Settings → Local Networks in the "Local Network Editor"
under "IP Settings")
• The Subnet Selection Mode is set to "Automatically Create Subnet". (Network Settings → Local Networks in the
"Local Network Editor" under "IP Settings" – shows when IP Passthrough is set as the Routing Mode)
• If you have created secondary networks, they are disabled: only the primary LAN is enabled.
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