User's Manual

28 Mechanical integration: Cables and connectors
Integrator’s Guide – RIM 902M OEM Radio Modem
This cable can plug into a matching 22-position 1.0 [0.039] horizontal FPC
connector. A variety of connectors are manufactured by Molex. More
information about each connector, including mechanical drawings, is available
from the manufacturer’s web site (www.molex.com), or you can contact RIM
([e-mail]) for help with selecting an appropriate connector for your
application.
Contact:
Molex Headquarters Molex Electronics Ltd.
Lisle, IL, USA Toronto, Ontario, Canada
tel: [phone] tel: [phone]
fax: [phone] fax: [phone]
www.molex.com
Antenna cable and connectors
RIM selected the industry-standard MMCX connector for the RIM 902M
because it is a very small connector that has the mating force to withstand
heavy vibration.
Typically, an antenna does not plug directly into a RIM 902M. Instead, an
connector at the outer casing of the device. This allows the antenna to be
removed from the system without having to open the device, and it eliminates a
source of strain on the radio’s MMCX connector.
The antenna cable should have low loss, an impedance of 50 : , and an MMCX
jack that mates with the RIM 902M’s MMCX plug. The other end of the cable
can be any connector you choose, as long as it has an impedance of 50 : . An
SMA screw-on connector is suitable and widely available. TNC connectors are
also suitable, but larger than SMA. The antenna cable supplied with the
RIM 902M developer’s kit has an MMCX connector on one end and an SMA
connector on the other. The cable is built with strain reliefs to prevent damage.
Huber & Suhner can provide antenna cables and connectors. The parts
described below have an impedance of 50 : and are suitable for use with the
RIM 902M.