Nokia NKC-1X Series, Technical Documentation Manual

Page: 20 / 54

NKC-1X
System Module CCS Technical Documentation
Page 20
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Nokia Corporation Issue 1 02/03
Figure 5: BMC-3 Battery contacts (BLC-2 has the same interface).
Battery Connector
NKC-1X uses the spring type battery connector. This makes the phone easier to assemble
in production and the connection between the battery and the PWB is more reliable. The
battery connector is manufactured by Molex.
Table 3: Battery Connector Interface
# Signal
name
Connected from - to Batt.
I/O
Signal properties
A/D--levels--freq./timing
Description /
Notes
1 VBAT (+)
(batt.)
VBAT I/O Vbat 3.0-5.1V Battery
voltage
2 BSI BSI
(batt.)
UEM Out Ana Battery size
indicator
3 BTEMP BTEMP
(batt.)
UEM Out Ana 40mA/
Switch
400mA
Battery
temperature
indicator
4 GND GND GND GND
GND
Ground
2(BSI) 3(BTEMP) 4(GND)
Excess
humidity
indicator
3(VBAT)