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DSB75 Development Support Board Rev. B1 Hardware Description

Strictly confidential / Released

DSB75_hd_v08 Page 21 of 94 29.09.2005

3 Description of DSB75 Interfaces

3.1 GSM Module Interface (Board-to-Board Connector)

The Molex board-to-board connector X100 on the DSB75 is an 80-pin double-row receptacle.

Figure 4 shows the names and positions of the pins on the DSB75. The pin allocation is

identical to the GSM module, but pin names may be different.

Several pins have multiple functions depending on the type of GSM module and alternate

configuration.

Figure 4: Pin assignment of the B2B connector

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