Specifications

WM_PRJ_Q2501_PTS_001 – 003

March 2004

Page:

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3 RF interface

3.1 RF connectors

The RF connections between the WISMO Quik Q2501 module and the customer

application is made by two MMS type coaxial connectors, manufactured by

Radiall.

Both RF connectors are available on the top side of the module, named:

•

GSM/DCS RF connector

•

GPS RF connector

The MMS connector stands on three pliable legs in order to guarantee the

receptacle stability after the placement. A snap-on mating system ensures a

correct positive connection each time.

Detailed information about MMS connector is available in this document,

paragraph RF Connector data sheet, 6.4.

According to RF interface configuration described in § 1.7.3, these connectors

are used differently:

•

Default configuration: GSM/DCS antenna connected to GSM/DCS RF

connector and GPS antenna connected to GPS RF connector.

•

Single Coax configuration: only one coaxial cable connected to GSM/DCS

RF connector to drive GSM/DCS and GPS antenna.

Figure 21: Default configuration

Figure 22: Single Coax configuration

Note

WAVECOM strongly recommends not to use IMS plug equivalent connectors,

because it does not mate correctly with the Radiall receptacle.