Figure 54 BT-RAP connection
IrDA
IrDA specifies a reliable, fully digital peer-to-peer data link between IrDA units at data rates from 9600 bits/
s to 115 kbit/s. The link is based on the serial transmission of data as pulses of infra red light at the wave
length of 870nm and angles of +-15degrees at the range 0 - 50 to 100 cm. The transmission is not
omnidirectional but focused and only reaches a peer at a limited line-of-sight distance from the transmitter
thus not disturbing any other units in the neighbourhood.
IR communication is half-duplex e.g. the IR receiver sees its own transmission, and the IR interface is either
transmitting or receiving, but not both at once.
USB
USB (Universal Serial Bus) provides a wired connectivity between a USB host PC and peripheral devices.
USB is a differential serial bus for USB devices. USB controller supports USB specification revision 2.0 with full
speed USB (12 Mbps). The device is connected to the USB host through the system connector. The USB bus is
hot plugged capable, which means that USB devices may be plugged in/out at any time.
SIM card
The device SIM interface supports both1.8V and 3V technology smart cards.
The power is not allowed to be supplied to cards until the power contacts to battery are properly connected.
RF-BB interface
In BB-RF interface there are 19 signal pins between RAP and cellular RF.
RM-88
System Module Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 8 –11
Copyright © 2006 Nokia. All rights reserved.
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