Ruim (Sim Car) - Nokia 6255 Description And Troubleshooting

6255/6255i6256/6256i (RM-19)
Baseband Description and Troubleshooting

RUIM (SIM CAR)

The 6255/6255i/6256/6256i supports SIM CAR. Use the waveform in Figure 27 to verify
that the sim_vcc, sim_i/o, cim_clk, and sim_rst signals are activated in the correct
sequence at power up. This picture may be taken when the SIM CAR is installed on the
mobile terminal to measure the signals when the mobile terminal is turned on. The figure
shows the proper waveforms when the interface is working. See Figure 28 on page 41 for
the test point's location.
Page 40
Figure 27: RUIM signal waveform
©2005 Nokia Corporation
Nokia Customer Care
Company Confidential Issue 2 05/2005