Modems > Self-managing Modems > LC300 Modems

2G/3G Self managing modems with Global Coverage

linkCONNECT modems are Smart modems designed to need very little knowledge to link up any equipment over the GSM network and effectively be self managing from out-of-the-box. We have many customers now using linkCONNECT modems due to their simplicity to use and connect to with existing equipment where the connected equipment does not have to change at all.

linkCONNECT modems are self managing in that they work-out-of-the box and auto manage the GSM network. They detect the GSM network they are connecting to and self manage their connection and reconnection to the network as is required. linkCONNECT modems are also agnostic of what is connected to them and do not need any connected equipment intelligence to control them. linkCONNECT modems are configured by the user by SMS commands and AT.

LinkConnect Client Mode 

In the Client mode LC300  acts as a client, simply connecting the terminal to a remote server at a pre-specified IP address and port. It can either be setup as ‘always connected’, or to connect only when data is received on the serial port. Once set up, the LC300 needs no further intervention to remain in full client mode. 

LinkConnect Server Mode 

In the Server mode LC300 acts as a server, where the terminal listens for incoming connections from a remote client on a specified port. Additionally a source IP can be specified, and only connections from this IP will be accepted.  

Why choose LC300 over LC200?

As well as offering global coverage, the LC300 family have a wide input voltage range (5 to 42V DC for UMTS version and 5 to 60V DC for GPRS version) which makes them suitable for automotive applications.


  • Auto detection of network (std on UK networks)
  • Auto connect / reconnect to network
  • Agnostic of equipment and operating systems connected
  • Simple to set up and configure via SMS commands
  • Automatically delivers all data presented to it (bidirectional)
  • Adds GSM connectivity to dumb equipment - simply
  • RS232 to 3G Modems
  • RS232 DTU
  • LC300-GPRS

    GPRS self managing modem

    LC300 3G self managing modem
  • LC300-UMTS

    3G/2G Self managing modem

    LC300 3G self managing modem


LC300 3G self managing modem LC300 3G self managing modem
Input Voltage 6 to 42V DC 6 to 42V DC
Frequency 1800Mhz
Interface RS232 RS232
Technology GPRS 3G / UMTS
SIM Slots Single
Operating Temperature Range -30 to +75°C -30 to +75°C