User's Manual

page 41/46

Note d’étude / Technical document : URD1 – 5625.1 – 006 / 69796 Edition 03

Document Sagem Communication Reproduction et divulgation interdites

Sagem Communication document. Reproduction and disclosure prohibited

Figure 36

Board to board connection

To ensure a good soldering process for the receptacle on the main board, respect the layout specification

following (dimension in mm).

Figure 37

Recommended layout for board to board receptacle

10.2.2 Antenna connection

There are two possibilities to connect the antenna signal to the main board :

• The Hirose coaxial connection : a receptacle is mounted on the MO300, an other receptacle (the same

Hirose reference) should be mounted on the main board. The connection should be realised by a

plug/unplug cable.

• A contact plate connection

10.3 Warning related to the use of metallic housings

Metal particles presence in the mechanical disturbs strongly the radio performance of the module. For example,

the minimum sensitivities levels are not guarantied in case of such use. Moreover, Sagem does not recommend

to have metallic particles especially in the antenna area.

MO300 board

Main board

Rece

tacle

Plu