Nokia 6600 slide, Руководство по обслуживанию

Страница: 164 / 192

USB, SIM, microSD
USB
USB (Universal Serial Bus) provides a wired connectivity between a PC and peripheral devices. It is a differential
serial bus.
USB 2.0 is supported with full speed (12 Mbps).
This phone is provided with a specific connector for MicroUSB.
Figure 34 MicroUSB Connector
SIM interface
The device has one SIM (Subscriber Identification Module) interface. It is only accessible if battery is removed.
The SIM interface consists of an internal interface between RAP and EM ASIC (N2200), and of an external
interface between N2200 and SIM contacts.
The SIM IF is shown in the following figure:
Figure 35 SIM interface
The EM ASIC handles the detection of the SIM card. The detection method is based in the BSI line. Because of
the location of the SIM card, removing the battery causes a quick power down of the SIM IF.
The SIM interface supports both 1.8 V and 3.0 V SIM cards. The SIM interface voltage is first 1.8 V when the
SIM card is inserted, and if the card does not response to the ATR a 3 V interface voltage is used.
RM-414; RM-570
System Module
Page 5 –12 COMPANY CONFIDENTIAL Issue 2
Copyright © 2009 Nokia. All rights reserved.