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Figure 1
Plugging a micro SIM into the micro SIM slot of the modem
First unscrew and remove the case’s SIM cover (Model 4575 only). Plug in a micro SIM
at the location shown in
. The micro SIM can be obtained from AT&T or another
modem-compatible service provider. After the micro SIM is in place, model 4575 users
should put the SIM cover back in place and screw it in.
Connecting the antennas
Before installing your cellular antennas, you must first screw the two metal antenna
wires into the antenna bases. Next, screw the 2 antennas into the SMA connectors
labeled Main and Aux as shown in Figure 1. If your unit did not come with cellular
antennas or if you want to use your own cellular antennas, they should meet the
specifications shown in
Chapter 8 Hardware Specification
the GPS antenna into the GPS SMA connector.
Connecting the power cube to the modem
If your modem comes with a power cube, you can plug that between a wall outlet and the
Power connector shown in Figure 1.
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