Siemens MC35 Specifications Page 19

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MC35i Terminal Hardware Interface Description
Confidential / Released
s
MC35i_T_HD_v02.00a Page 19 of 42 16.02.2007
3.5 Terminal circuit
ZIF Connector (40 pin)
FFC
RS232 Treiber
D-Sub
9-pin
LED driver
GSM/GP
RS
St atus
EMC
(Audio)
EMC
(Power)
Overvoltage
protection
Regulator
Power on/off
logic
IGT_IN
(Ignition)
/IGT (Ignition)
Power on/off
VBATT+
(Main supply)
Fuse
SIM
Card
Interface
EP1
MIC1
SYNC
CCxxx
VDD
VPLUS
(Power)
Power Supply
Western jack 6 pin
Western
4
pin
FME 50 Ohm
VDD
VDD
EMC (on/off)
RS232
Interface.
/RXD 0, /TXD0,/RT S0,/ CTS0,/DTR 0, /DSR0,/DCD0, /RING0
GSC (Antenna reference point)
PD_IN
(Power Down)
/PD (Power Down)
Microphone
supply
VPP
VPP
VDD
VDDLP
(Power down supply
VDD
8
6
RF cable
GSM Module
LED
SIM
RS232 interface
Audio
ON/OFF logic
Power supply
Radio Interface
Terminal circuit
Audio
GSM interface
RF Interface
Voltage
limiter
DTR
VDD
VMIC
VMIC
DC
DC
5V
VBATT+
Lin. Reg.
EMC
EN
Figure 3: MC35i Terminal circuit block diagram
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