Connectivity; Microusb Interface; Sim Interface; Microsd Card Interface - Nokia RM-509 Service Manual

RM-509; RM-510; RM-511
System Module

Connectivity

MicroUSB interface

The micro 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).
Hot swap is supported, which means that USB devices may be plugged in/out at any time.
rd
This phone is equipped with a μUSB connector (B type) which accepts CA-101 or an appropriate 3 party data
cable to establish a USB connection.
Figure 32 MicroUSB connector

SIM interface

The phone has a SIM (Subscriber Identification Module) interface including a SIM connector. The connector
is only accessible when the battery is removed.
The interface is located into two ASICs; RAP3GS2v4 contains most of the interface functionality and MS ASIC
takes care of card power up/down, card detect, ATR counting and level shifting functions.
Figure 33 SIM interface
The SIM interface supports 1.2V, 1.8V and 3V technology smart cards.

MicroSD card interface

The microSD card is connected to the engine through the level shifter in Pearl/Gazoo to adapt the 1.8V I/O IF
of the RAP3GS2v4.x to the 3V IF of the SD IF.
The microSD card can only be removed or inserted when the battery is removed.
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