Specifications

WM_PRJ_Q2501_PTS_001 – 003

March 2004

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5 Environmental Specifications

5.1 Operational conditions of functioning

3 different operating classes have been defined:

Class A: The module shall have full function during and after an external

influence. The performances meet the minimum requirements.

Class B: The module is fully functional (phone calls sending and receiving,

SMS, GPRS) but GSM/DCS performances can be out of ETSI

minimum requirements. All functions will return to normal after the

external influence has been removed.

Class C: The functional requirements will not be fulfilled during external

influence, but will return to full function automatically after that the

external influence has been removed.

Following table gives the temperature ranges corresponding to these classes for

GSM/DCS function and for GPS function.

GSM/DCS GPS Temperature range

A -20 °C to +55 °C for GSM 900

-10 °C to +55 °C for GSM 1800

B A -35 °C to +85 °C

C C -40 °C to +85 °C

Storage Storage -50 °C to +90 °C