Specifications

WM_PRJ_Q2501_PTS_002 - 001
March 2004
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4.2.5.2 Connection possibilities
If the GSM/GPRS or GPS RF connections need to be implemented on the
application board (for mechanical purposes for instance), there are two main
connection possibilities:
 Connection using a soldered pigtail connection,
 Connection using a dedicated cable assembly.
Soldered Pigtail Connection Dedicated cable assembly
Cable used
Description
One side of the coaxial cable
is fitted with a male MMS
connector, the other one is
soldered directly on the
application board.
A specific cable is used to make
the connection between the
module and the customer board
(MMS in this example, but other
connectors can be used)
Picture
example
This is the default connection
that is used for the
WAVECOM Starter Kit.
Benefits
 cable cheaper
 mechanically stronger
 affordable for high volumes
Drawbacks
 manual soldering needed  two connectors needed per
system: a MMS plus a board-
to-board.
 specific cable (length depends
on application).
 weaker than soldered pigtail.

in both cases, pay a special attention to the radius curve of the cable
assembly, the MMS plug connector must sustain minimal stress in order that
it mates correctly.