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
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