Specifications

Chapter 4
Hardware installation
4.1 Mounting the modem
If delivered with the DIN clip accessory, detailed on page 27, use two M3 screws to mount the DIN clip on the back
of the modem as shown on figure 4.1.1.
Figure 4.1.1: DIN clip mounted on M100 3G
4.2 Installing the SIM card
Use a ball pen or paper clip to eject the SIM holder by pressing the eject button. Put the SIM card to the tray; make
sure it is completely inserted in the tray, then carefully put back the tray into the slot.
Note: DO NOT pull out the SIM holder without pushing the ejector button.
4.3 Connecting the external antennas (SMA type)
Connect both antennas with SMA male connector on the modem, make sure antennas are tightly secured. Select a
GSM antenna with the right GSM frequency and an impedance of 50Ω; incorrect antenna will affect communication
and even damage the modem. Select a GPS antenna with an impedance of 50Ω; incorrect antenna will affect GPS
sensitivity and time to fix.
Note: Make sure to install GSM and GPS antennas with an angle of at least 90º to avoid disturbance.
Refer to the drawing on Figure 4.3.1 on the following page.
Confidential, the whole document is the sole property of Maestro Wireless Solutions ltd.
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