User Guide

RH-21 Company Confidential
System Module Nokia Customer Care
Page 14  2004 Nokia Corporation. Issue 2 07/2004
Battery Connector
RH-21 uses string type connector. This makes it easier to assemble the phone in produc-
tion; and connection between battery and PWB is more reliable.
#
Signal
name
Connected
from - to
Batt I/O
Signal properties
A/D--levels--freq./timing
Description /
Notes
1 VBAT VBAT I/O Vbat 3.1-5.2V Battery volt-
age
2 BSI UEM Out Ana Battery size
indicator
3 BTEMP UEM Out Ana 40mA/
switch
400mA
Battery tem-
perature indi-
cator
4 GND Gnd Ground