3
Components
➊
➊
LED indicator: This indicates the device is connected to 3G or 4G Mobile Broadband
networks; it also indicates when the device has an error or has no service available. See
LED
States
on page 4.
➊
➋
USB connector: This connects to your computer through a type A USB port. The hinge
design makes it easier to connect to computers.
➊
➌
Accessory hook: This attaches to the lanyard accessory (included in the box) for portability.
See
Lanyard Accessory
on page 14.
➊
➍
Back panel (removable): This covers the 4G SIM card slot. Insert a fingernail into the divot
closest to the USB connector to remove the back panel.
➊
➎
4G SIM card slot: Insert the 4G SIM card into the spring-loaded SIM card slot. See
Install the
4G SIM Card
on page 8.
Summary of Contents for USB551L
Page 1: ...USER MANUAL USB551L MODEM ...
Page 4: ...Limited Warranty and Liability 26 Safety Hazards 27 Glossary 29 ...
Page 5: ...Overview Components Caring for Your Device Getting Started 1 ...
Page 21: ...Overview Common Problems and Solutions Technical Support Troubleshooting 3 ...
Page 33: ...Glossary 5 ...