Nokia 2220 Servicehandbuch
CCS Technical Documentation
System Module
RH-42
Issue 2 09/2003
Nokia Corporation Confidential
Page 19
Figure 5: BMC-3 Battery contacts (BLC-2 has the same interface)
Battery Connector
RH-42 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.
in production and the connection between the battery and the PWB is more reliable.
Battery Connector Interface
Accessories Interface
System connector
System connector
Introduction
RH-42 uses accessories via a system connector.
Interface
The interface is supported by fully differential 4-wire (XMICN, XMICP, XEARN, and
XEARP) accessories. RH-42 supports the HDE-2 inbox headset, HDB-5 Boom headset,
HDC-5 headset, LPS-3 loopset, and the PPH-1 car kit.
XEARP) accessories. RH-42 supports the HDE-2 inbox headset, HDB-5 Boom headset,
HDC-5 headset, LPS-3 loopset, and the PPH-1 car kit.
#
Signal
name
Connected from - to
Batt. I/
O
Signal properties
A/D--levels--freq./timing
Description /
Notes
1
VBAT
(+)
(batt.)
(batt.)
VBAT
I/O
Vbat
3.0-5.1V
Battery voltage
2
BSI
BSI
(batt.)
(batt.)
UEM
Out
Ana
Battery size
indicator
indicator
3
BTEMP
BTEMP
(batt.)
(batt.)
UEM
Out
Ana
40mA/Switch
400mA
400mA
Battery temper-
ature indicator
ature indicator
4
GND
GND
GND
GND
GND
Ground
2(BSI)
3(BTEMP)
4(GND)
Excess
humidity
indicator
humidity
indicator
3(VBAT)