4 Login and Network Access 
4.1 Network Access via the Dialup Card 
1. Insert the SIM card, connect the GNSS and cellular antennas, and connect the 
power supply and PC. Insert the diversity dialup antenna when the dialup card has 
poor signals. 
 
VG814 railway version, appearance drawing of single cellular network module 
Note: 
Before inserting or removing the SIM card, unplug the power cable; otherwise, the 
operation will cause data loss or damage the gateway.