User Manual

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Cellular Networks
Socket Mode, Standard TCP IP Connection (TCP Server/Client)
If your application involves a socket-based TCP server or TCP client, you can set your OnCell G3100 device
to Socket Mode Socket operation mode by simply using the OnCell web console. You do not need to
install any additional utilities onto the host PC but the socket software on the host PC will need to set up a
socket connection with the OnCell G3100. The IP address of the SIM card on the OnCell G3100 device will
determine the role of socket connection.
OnCell Device’s IP Address Suitable Role Socket Mode Selection
Public address Server role, Client role TCP Server, TCP Client
Private IP address
Like 10.x.y.x or 172.xx……
Client role TCP Client
If both the host PC (at the control center) and the OnCell G3100 device have private IP addresses, you can
use OnCell Central Manager on the OnCell G3100 to resolve the private IP to private IP problem and select
TCP Server for the OnCell G3100’s socket mode.
IP gateway play TCP Server role
IP gateway play TCP Client role