Westermo GD-01 US - Manual (Page 13)

13 6696-2230
7.2 SIM card
The SIM card is accessable under the lid on top of the unit.The SIM card is needed for
full operation of the unit.
Warning!
Prevent damage to internal electronics from electrostatic discharges (ESD)
by discharging your body to a grounding point (e.g. use of wrist strap), before
the lid on top of the unit is removed.
Warning! Do not open connected equipment.
Hazardous voltage may occur within this unit when connected to power supply.
Prevent access to hazardous voltages by disconnecting the unit from power
supply and all other electrical connections.
It is necessary to have a GSM subscription from a net-
work operator.
They will provide you with a SIM card that should be
mounted in the SIM card holder.
The SIM card holder is located under the top lid of the
unit.
Press the button to eject the holder. Mount the SIM card
in the holder and make sure it is correctly installed
before it is pushed back into the unit.
!
!
7.3 Antenna care and placement
Warning, unit contains internal hazardous voltage when power supply is con-
nected.
Prevent access to hazardous voltages by disconnecting the unit from power
supply and all other electrical connections.
Since the GD-01 US is installed in a fixed location, special care must be taken
when planning the installation, especially when placing the antenna. The standard
antenna shipped with the product is an efficient dual-band antenna designed for
the 850 MHz and the 1900 MHz frequency bands used in the US and Canada.
Depending on the installation location and surrounding materials, the signal
strength reaching the GD-01 US may not be sufficient. The best way to find the
optimal position of the antenna is to use the command AT+CSQ that returns
the “received signal strength”. Please refer to the AT-command guide for further
information.
The antenna must only be connected locally and not connected to a cable
distribution system going outside the building.
!