Siemens MC35 Specifications download pdf (Page 33)

MC35i Terminal Hardware Interface Description

Confidential / Released

MC35i_T_HD_v02.00a Page 33 of 42 16.02.2007

Table 17: On-board operating temperature of built-in MC35i module

Parameter Min Typ Max Unit

Normal operation

-20 +25 +70 °C

Automatic thermal shutdown

1)2)

-25 --- >+80 °C

Table 18: Ambient operating temperature of MC35i Terminal according to IEC 60068-2 (without forced

air circulation)

Parameter Min Typ Max Unit

Normal operation

-20 +25 +55 °C

Restricted operation

-25 to -20 --- +55 to +60 °C

Automatic thermal shutdown

1)2)

-25

---

+60

°C

When an emergency call is in progress automatic thermal shutdown is deferred. See also

Chapter 3.5.1.5.

Due to temperature measurement uncertainty, a tolerance of ±3°C on these switching thresholds

may occur.

Restricted operation according to 3GPP TS 45.005 V6.7.0 (2004-11), Annex D, D.2.1,

Temperature (GSM 400, GSM 900 and DCS 1 800): “Outside this temperature range the MS, if

powered on, shall not make ineffective use of the radio frequency spectrum. In no case shall the

MS exceed the transmitted levels as defined in 3GPP TS 45.005 for extreme operation.”

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Siemens MC35 Specifications Page 33