Migration from MC35 to MC35iP R E L I M I N A R YMigration from MC35 to MC35i 18 of 30 12.03.034.10 Mounting and installationAppropriate installation and mounting to the host housing / enclosure is essential for reliableoperation of the GSM engine.MC35 & MC35iThe MC35i board provides three mounting holes. To properly mount it to the host device youcan use M1.6 or M1.8 screws plus suitable washers. The maximum diameter of the screwhead, including the washer, must not exceed 4 mm.To prevent mechanical damage, be careful not to force, bend or twist the GSM engine. Makesure it is positioned flat against the host device.Avoid placing the MC35i board tightly to the host device. Instead, it is recommendedto set the spacers between the module and the host device. If your design approach doesnot allow for spacers make sure the host device provides an opening for the RF part.Avoid exerting any pressure on the shielding covers. Contact springs or other componentsmust not be fastened to the covers. In extreme conditions, you run the risk of short-circuit ifthe cover was damaged or distorted due to pressure. Furthermore, the covers must not beused to apply any solder joints.For snap in concept please be aware that the MC35i PCB is thinner then the MC35PCB.