Multitech MultiConnect microCell MTCM2-L6G1 Configuration Manual page 5

Use the following Linux commands to start the cellular connection after the modem is setup, configured and
registered:
ifconfig eth1 up (cellular IP)
ifconfig eth2 up (debug interface)
udhcpc -i eth1
udhcpc -i eth2
ifconfig eth1 (check if cellular IP address is assigned successfully to this
ethernet interface)
You need to setup and configure routing, DNS, and default gateway for the system to have access over the private
LTE network via the Ethernet cellular IP address interface.
Use troubleshooting guide, if your Linux Ethernet interface cannot obtain a cellular IP address and there are
connectivity issues.
Troubleshooting Cellular Connectivity Issues
When there are cellular connectivity issues:
Check SIM card and make sure it is activated and allow to connect to private LTE network
Does the SIM card require specific APN setting? If so, set APN accordingly using AT commands. Refer to the
AT Commands topic for details.
Check LED SIM to insure SIM card is detected
Check LED signal strength to insure network signal is available
Check LED LS to insure network registered
Use terminal software and AT command to query modem information and status
AT Commands
Check modem version:
AT+CGMM
AT+CGMR
ATI
Check SIM status:
AT+CIMI
AT+CPIN?
Setup and check APN:
AT+CGDCONT=1,"IP","apn name"
AT+CGDCONT?
AT+CGCONTRDP
Check signal strength:
AT+CESQ
Check network registration:
AT+CEREG?
AT+COPS?
Check modem setting for auto network connection:
AT+SQNAUTOCONNECT?
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MultiConnect microCell MTCM2-L6G1 Configuration Guide
CONFIGURING ON THE WINDOWS/LINUX OPERATING SYSTEM
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