Integration Manual

GTM353W Integration Manual
Author:
R
. Claessens
Version:
4.0 Draft 2
Creation Date:
September 20, 2006
Page:
16 of 52
Option Confidential:
This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
3.3.3.1 Contact activation and deactivation
The Terminal shall connect, activate and deactivate the UICC in accordance with the
Operating Procedures specified in ISO/IEC 7816-3 [12].
For any voltage level, monitored during the activation sequence, or during the deactivation
sequence following normal power-down, the order of the contact activation/deactivation shall
be respected.
It is recommended that whenever possible, the deactivation sequence defined in
ISO/IEC 7816-3 [12] should be followed by the Terminal on all occasions when the Terminal
is powered down.
If the UICC clock is already stopped and is not restarted, the Terminal may deactivate all the
contacts in any order, provided that all signals reach low level before Vcc leaves high level. If
the UICC clock is already stopped and is restarted before the deactivation sequence, then the
deactivation sequence specified in ISO/IEC 7816-3 [12] sub clause 5.4 shall be followed.
3.3.3.2 Inactive contacts
The voltages on contacts C1, C2, C3, C6 and C7 of the Terminal shall be in the range 0 ± 0,4
volts referenced to ground (C5) when the Terminal is switched off with the power source
connected to the Terminal. The measurement equipment shall have a resistance of 50 kohms
when measuring the voltage on C2, C3, C6 and C7. The resistance shall be 10 kohms when
measuring the voltage on C1.
3.3.3.3 Contact pressure
The contact pressure shall be large enough to ensure reliable and continuous contact (e.g. to
overcome oxidisation and to prevent interruption caused by vibration). The radius of any
curvature of the contacting elements shall be greater than or equal to 0,8 mm over the contact
area.
Under no circumstances shall the contact force exceed 0,5 N per contact.
Care shall be taken to avoid undue point pressure to the area of the UICC opposite to the
contact area. Such pressure is potentially damaging to the components within the UICC.