Chapter 2 – Installation
Multi-Tech Systems, Inc. MultiModem GSM/GPRS User Guide 15
Electrical Installation & Configuration
The wireless MultiModem requires the power supply connection to begin operation. It also requires a
SIM card (Subscriber Identity Module) to operate on a GSM network. To install the modem, do the
following:
1. Using your fingernail or a small wedging tool (e.g., a small screwdriver), pry off the SIM cover.
2. Insert the SIM card into the holder.
3. Verify that the SIM card fits into the holder properly and then replace the cover.