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TFE-4/RV-1
Company Confidential
TF4 Technical Information
Nokia Customer Care
Page 8b-34
Copyright
©
2005
Nokia Corporation.
Issue 2.0 Mar/2005
Company Confidential
B2B-System connector
Block Diagram
Figure 17: Block Diagram of B2B-Connection
B
2
B
Sy
stem
Conn
ector
UEM
UPP
B2B Power/
RS232 -1
B2B Power/
RS232 -2
RS
-2
32
Fi
lter
Vback2V7
Vback5V
Poweronx
Flashbus
Voltage
Devider
Poweronx
Filter
Flashbus
Filter
Engine Audio
Filter
Control IO
Filter
HF/HDAudi
Control-
Lines
RS232
VBAT
*** Note: RS232 facility is only utilised in the N810 ***
TF-4
Car
conne
ctor
HS/ID
conne
ctor
4.2V DC/DC
≥
1
HF-
MIC
HF-
Spkr
B2
B Sy
st
e
m Co
n
ne
ct
o
r
TF-5R
VCAR
VIDD
CRM
IGNS
VBAT
B2BPoweroffx (Output 1.8V)
B2BIgnition (Input 1.8V
B2BCRM (output 1.8V)
B2BUI_POWERON
B2BHSMUTEX
B2BHFMUTEX
Audio
DU
connector