Motorola ML910 - Manual (Page 172)

z Place the PRM240 module on ML910 RUGGED NOTEBOOK by matching each
corner of the PRM240 Internal Modem module with the four screw holes.
z Fix four screws back on to lock the PRM240 Internal Modem Module.
z Connect the FFC cable to the FFC connector on the main board.
C-14 Self Install Internal Wireless Modems