User Guide

Nokia Customer Care System Module
6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Issue 1 - Revision 002 09/2004 ©2004 Nokia Corporation Company Confidential Page 21
Accessories Interface
System Connector
Tomahawk accessories are used through a Tomahawk connection. The Tomahawk bottom
connector consists of a charging plug socket and a Tomahawk system connector.
Minimum configuration of Tomahawk interface includes charging, mono audio, power
out, ACI, and Fbus. The USB and stereo audio out are optional.
Tomahawk system connector includes:
Charging
Pads for 2-wire charging in cradles
Audio (stereo audio optional)
4-wire fully differential stereo audio
FM radio antenna connection
2-wire differential mic input
Power out
2.78V 70 mA output to accessories (bb4.0, bb4.5)
2.5V 90 mA output to accessories (bb5.0)
Detection/controlling
•ACI
Point-to-point bi-directional data line
USB (optional)
Power in 5V in from USB host
USB v2.0 device mode (full speed 12M)
•Fbus
Standard Fbus
AT command mode (Nokia Serial Bus)
Phone message mode
Fast Fbus, fast data bus to add on modules