Siemens ET7 Series Especificações descarregar pdf (Página 75)

DSB75 Development Support Board Rev. B1 Hardware Description

Strictly confidential / Released

DSB75_hd_v08 Page 75 of 94 29.09.2005

6 Connecting Antenna and GSM Module to DSB75

To prevent mechanical damage, be careful not to force, bend or twist the module. In order to

prevent short-circuits, ensure that the GSM module does not come into contact with any part

of the DSB75.

Follow these steps to connect the components:

• Connect the supplied RF cable to the appropriate RF connector on the GSM module.

• Plug the opposite end of the RF cable to the Hirose RF jack X505 located on the

component side of DSB75.

• Connect the 80-pin B2B connector of the GSM module to the 80-pin board-to-board

connector X100 of the DSB75.

• Insert the M2 screws (1) from the bottom side into the small holes of the DSB75 (5). Push

the self-gripping spacers (3) onto the screws as far as possible.

• Mount the GSM module (4) upside down onto the M2 screws and spacers and secure it

with the M2 nuts (2).

• Connect the external antenna to the SMA jack X506 of the DSB75.

• Plug the power cables to the connectors X400 and X401 of the DSB75.

Figure 46: Mounting GSM module onto the DSB75

The pin assignment of the B2B connector can be found in Figure 4. Figure 47 shows a GSM

module directly connected to the DSB75.

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