User's Manual

Table Of Contents
MC55/56 Hardware Interface Description
Confidential / Preliminary
s
MC55/56_hd_v03.00 Page 97 of 104 16.08.2005
6.3.1 Mechanical dimensions of the Hirose DF12 connector
Figure 43: Mechanical dimensions of Hirose DF12 connector
6.3.2 Adapter cabling
The board-to-board connection is primarily intended for direct contact between both
connectors. If this assembly solution does not fit into your application design ensure that the
used adapter cable meets the following requirements:
Maximum length: 200 mm
It is recommended that the total cable length between the board-to-board connector pins
on MC55/56 and the pins of the card holder does not exceed 200 mm in order to meet
the specifications of 3GPP TS 51.010-1 and to satisfy the requirements of EMC
compliance.
Type of cable: Flexible cable or flexible printed circuit board designed to mate with the
Hirose receptacle and headers specified above.
The equipment submitted for type approving the Siemens reference setup of MC55/56
includes a 160mm adapter cable. See Chapter 7.1.