Lanner NCR-1510 User Manual page 26

PGN Module Installation
Installing the PGN Module
Remove the front panel and slide in the PNG Module
Installing the SIM Card
1. Slide the SIM card holder to the open position, and then carefully lift it up.
2. Insert the SIM card with the gold metal side facing outwards as shown in the picture.
3. Fold down the SIM card holder and slide it back into place.