Continental Automotive Systems Corporation SMK35 Manual De Usuario
Editor :
SM JEON
Document name
Project code
Version:
0.1
JUNE 26, 2014
ECO / DF No.
Identification No. : Document No.
File: User Manual for SMK3.5(English)
Page 4 / 7
.
ro
p
ri
e
ta
ry
d
a
ta
,
co
m
p
a
n
y
co
n
fid
e
n
tia
l.
A
ll
r
ig
h
ts
re
se
rv
e
d
.
o
n
fié
à
tit
re
d
e
se
c
re
t
d
'e
n
tr
e
p
ri
s
e
.
T
o
u
s
d
ro
its
r
é
se
rv
é
s
.
o
m
u
n
ic
a
d
o
c
o
m
o
se
g
re
d
o
e
m
p
re
sa
ri
a
l.
R
e
se
rv
a
d
o
s
to
d
o
s
o
s
d
ir
e
ito
s.
o
n
fid
a
d
o
co
m
o
s
e
cr
e
to
i
nd
u
st
ri
a
l.
N
o
s
re
se
rv
a
m
o
s
t
o
d
o
s
l
o
s
d
e
re
c
ho
s.
.
.
W
e
ite
rg
a
b
e
so
w
ie
V
er
vi
e
lfä
lti
g
u
n
g
d
ie
se
r
U
n
te
rl
a
g
e
,
V
e
r-
w
e
rt
u
n
g
u
n
d
M
itt
e
ilu
n
g
ih
re
s
In
h
a
lts
n
ic
h
t
g
e
st
a
tte
t,
so
w
e
it
n
ic
h
t
a
u
sd
rü
ck
lic
h
zu
g
e
st
a
n
de
n
.
Z
u
w
id
e
rh
a
n
d
lu
n
g
e
n
ve
r-
p
fli
ch
te
n
z
u
S
ch
a
d
e
n
e
rs
a
tz
.
A
lle
R
e
ch
te
v
o
rb
e
h
a
lte
n
,
in
sb
e
-
so
n
d
e
re
f
ü
r
d
e
n
F
a
ll
d
e
r
a
te
n
te
rt
e
ilu
n
g
o
d
e
r
G
M
-E
in
tr
a
g
u
n
g
.
.
The functions of the SMART KEY system have to be provided in a clearly defined and
limited range. For the up-link from the vehicle to the SMART KEY FOB, a magnetic field
with a frequency of 125 kHz and ASK modulation is used.
Technical aspects of 125 kHz
limited range. For the up-link from the vehicle to the SMART KEY FOB, a magnetic field
with a frequency of 125 kHz and ASK modulation is used.
Technical aspects of 125 kHz
– magnetic field:
virtually no reflections,
cubical decrease of field strength
allows good range control,
released frequency band (ISM),
high penetration,
low quiescent current demand due to 125 kHz input stage (SMART KEY FOB),
less sensitive for detuning compared to higher frequency.
For the down-link from the SMART KEY FOB to the vehicle, the standard radio frequency
(RF) is used (similar to the classic remote control functions) with FSK modulation.
1.2.4
System Architecture
The system is designed as an optional system, making it possible to equip vehicles of the
same car-Line with different levels of access control systems.
same car-Line with different levels of access control systems.
The system is suitable to be integrated into an existing architecture that provides central
locking functions with standard remote control. This proposal assumes that the following
functions / devices are alread
locking functions with standard remote control. This proposal assumes that the following
functions / devices are alread
y present in the vehicle’s architecture.
Central locking system (latch / motor
– drivers etc.)
Standard body control functions
Warning buzzer