Product Descriptions EN 1 13 2 3 4 5 7 6 8 9 10 11 12 5 NO. Name Descriptions 1 DB-15 Diagnostic Connector To connect to the diagnostic cable. 2 LCD Show test results. 3 USB Port To connect the scanner to computer via USB cable for upgrade, and printing. 4 TF Card Slot To read or write the data/file stored in the TF card.