NETGEAR LB1120 and LB1121 LTE Modem User Manual

This user manual covers the installation, configuration, and management of NETGEAR LB1120 and LB1121 LTE modems for mobile broadband internet access.


NETGEAR LB1120 and LB1121 LTE Modem User Manual - cover page
Brand
NETGEAR
Category
Other Electronics
Document type
User Manual
Language
English
Pages
96
File format
PDF
File size
3.3 MB
Published
13 October, 2026
Updated
13 October, 2026
MD5 checksum
15FE26818103DD455BC890EE93AB4501

About this manual

This manual provides comprehensive instructions for the NETGEAR LTE Modem models LB1120 and LB1121. It details hardware overview, supported mobile broadband bands, and step-by-step guides for installing the Micro SIM card and connecting the device to computers or routers. The document explains how to access the modem's web interface to manage LAN settings, mobile broadband connections, and security features like port forwarding and SIM card security.

What's inside

  • Introduction and Hardware Overview
  • Get Started Internet Connection
  • Manage the Modem LAN Settings
  • Manage the Mobile Broadband Connection
  • Secure Your Network
  • Manage the Modem and Monitor Usage
  • Manage SMS Messages
  • Frequently Asked Questions
  • Alerts and Troubleshooting
  • Default Settings and Specifications

Specifications

Input Voltage200–240V , 50/60 Hz
Output Voltage12 VDC @ 1.0A
Ethernet PortOne 10/100/1000BASE-T
Operating Temperature0° to 40°C (32° to 104°F)
Storage Temperature-25° to 55°C (–13° to 131°F)
Operating Humidity5–95% maximum relative humidity

Frequently asked questions

Can I connect multiple LAN devices to the modem?

Yes, if you connect a WiFi router to the modem's Gigabit Ethernet port, the mobile network connection can provide high-speed Internet access for multiple users and devices.

What power input voltage and frequency does this modem require?

The modem requires an input of 200–240V at 50/60 Hz.

What is the maximum operating temperature for this device?

The modem can operate at temperatures up to 40°C (104°F).

What type of SIM card is required for this modem?

This modem uses a micro SIM card, also known as a 3FF SIM card.

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