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Terminal circuit, Figure 3: tc35i terminal circuit block diagram, 5 terminal circuit – Siemens TC35i User Manual

Page 17: Confidential / released, Tc35i terminal hardware interface description, Tc35i terminal, Figure 3, Circuit block diagram

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TC35i Terminal Hardware Interface Description

Confidential / Released


TC35i_T_HD_v01.05 Page

17/37

10.07.2003

3.5 Terminal circuit

ZIF

co

nn

ect

or

(40

p

ole

)

FFC

EM

C

(R

S-

23

2)

R

S

-23

2 dri

ver

D-Su

b

9 pi

n

LED driver

GS

M

s

tat

us

EM

C

(Au

di

o)

EMC

(Power)

Overvoltage

protection

Regulator

Power on/off

logic

IGT_IN

(Ignition)

/IGT (Ignition)

Power on/off

BATT+

(Main supply)

Fuse

SIM

card

interface

EP1

MIC1

SYNC

CCxxx

2V9

DC

Power

Pow

er sup

pl

y

W

est

er

n

ja

ck

(6

pi

n)

W

es

ter

n j

ac

k

(4

pi

n)

FME
50 Ohm

2V9

BATT+

2V9

EM

C

(o

n(of

f)

RS

-2

32

in

te

rf

ace

/RXD0, /TXD0, /RTS0, /CTS0, /DTR0, /DSR0, /DCD0, /RING0

GSC (Antenna reference point)

PD_IN

(Power down)

/EMERGOFF

Microphone

supply

VPP

VPP

2V9

VDDLP

(Power down supply)

2V9

9

RF cable

G

S

M

Engi

ne T

C

3

5i

LED

SIM

RS-232 interface

Audio

ON/OFF logic

Power supply

Radio interface

Terminal circuit

Aud

io

GS

M

in

te

rf

ac

e

RF interface

Voltage

limiter

DTR

2V9

/

Figure 3:

TC35i Terminal

circuit block diagram