Nokia 3105 Servicehandbuch
CCS Technical Documentation
System Module
RH-48
Issue 1 11/2003 Confidential ©
2003 Nokia Corporation
Page 13
Figure 2: Battery pack pin order
Battery Connector
RH-48 uses a spring-type battery connector. This ensures a more reliable connection
between the battery and PWB.
between the battery and PWB.
Accessories Interface
System connector
Introduction
RH-48 uses the Tomahawk accessories via the Tomahawk connector.
Interface
Tomahawk bottom connector consists of charging plug socket and Tomahawk System
connector (see figures that follow). Minimum configuration of Tomahawk interface
includes charging, mono audio, power out, ACI and Fbus. USB and stereo audio out are
optional.
connector (see figures that follow). Minimum configuration of Tomahawk interface
includes charging, mono audio, power out, ACI and Fbus. USB and stereo audio out are
optional.
Tomahawk system connector includes:
• Charging
Pads for 2 -wire charging in cradles
• Audio
2 -wire fully differential output audio
#
Signal
name
Connected
from - to
Batt I/0
Signal properties
A/D-levels-freq./
timing
Description/
Notes
1
VBAT
(+) (batt.)
VBAT
I/O
Vbat
2
BSI
BSI (batt.)
UEM
Out
Ana
3
GND
GND
GND
Gnd