12
SI-642 User Manual
2.1.2
Mini-PCIe & M.2 Cards
1. Locate the M.2 slot inside the device.
2. Align the key of the M.2 card to the interface, and insert the card
slantwise.
3. Fix the M.2 card with an M3 screw.
M.2:
2.1.3
WiFi / 3G / 4G Antenna Installation
Thread the WiFi / 3G / 4G antenna extension cable through an antenna hole
of the front I/O cover and fasten the antenna as shown below. Then apply
adhesive to the edge of the hex nut behind the front I/O cover to prevent the
extension cable from falling if the cable becomes loose.
1. Thread and fasten the hex nut and the
washer. Then install the antenna.
2. Apply adhesive around here.
Info:
The diameter of the nut is around 6.35 mm (0.25”-36UNC).