User Guide

PAMS
Technical Documentation
NSE–8/9
Troubleshooting
Page 17
Issue 1 07/99
4.6. Plug in SIM card is out of order ( insert SIM card or card rejected).
The hardware of the SIM interface from MAD2Pr1 (D300) to the SIM connector
(X100) can be tested without SIM card.
When the power is switched on, all the used lines (VSIM, RST, CLK, DATA) rises up
to 3V one time and 5V tree times (see fig 5).
Thus ”Insert SIM card” faults can be found without SIM card.
The fault information ”Card rejected” means that ATR message (the first message is
always sent from card to phone) is sent from card to phone but the message is
somehow corrupted, data signal levels are wrong etc. or factory set values (stored to
the EEPROM) are not correct.