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ates in the digital CDMA network. If a sufficient network supply cannot be ensured, the TCU
switches over to the AMPS network. The widespread AMPS network is used especially in
rural areas.
If the option Professional navigation system is not installed, the TCU will be fitted with an
internal GPS receiver. The GPS receiver is connected to the GPS antenna that is integrat-
ed in the roof antenna. In the US version, the telephone/telematics functions are available
in three stages:
" Basic
" Business
" Professional
Eject Box
The eject box is an additional component that must be retrofitted in the USA. The eject box
serves the purpose of accepting the Motorola Phoenix V60 mobile phone and is located in
a compartment in the centre console.
The charger for the mobile phone is integrated in the eject box. The antenna connection for
the AMPS antenna is also located directly in the eject box. Data transfer from the mobile
phone to the TCU takes place by means of a multi-core cable (P2K, point to connect).
Motorola Mobile Phone Phoenix V60
The Motorola Phoenix V60 mobile phone is the standard telephone in the US version. The
mobile phone is also a component part of the retrofit.
All functions are available only when the mobile phone functions are provided. The tele-
phone book is integrated in the mobile phone. SMSs can only be sent with the mobile
phone.
22
E60 Communication Systems
Compensator
The compensator is connected in the antenna line between the roof antenna and the
mobile phone. The task of the compensator is to compensate for losses on the antenna
line and to ensure the full transmit power of the mobile phone is available at the roof anten-
na. The compensator is not an amplifier that boosts the transmit power output.
SOS Antenna
The SOS antenna is fitted as standard under the rear window shelf. It ensures an emer-
gency call can be sent even after a crash and failure of the roof antenna.
GPS Antenna
The GPS antenna is integrated in the roof antenna. It receives the signals from the satellites
of the global positioning system and sends these signals to the GPS receiver.
Workshop Exercise - Communications
1. Why does the Basic Controller NOT include the Speech Recognition Button?
1
.
W
h
y
d
o
e
s
t
h
e
B
a
s
i
c
C
o
n
t
r
o
l
l
e
r
N
O
T
i
n
c
l
u
d
e
t
h
e
S
p
e
e
c
h
R
e
c
o
g
n
i
t
i
o
n
B
u
t
t
o
n
?
2. What happens to the radio sound when the MOST Bus fails in a vehicle equipped with
2
.
W
h
a
t
h
a
p
p
e
n
s
t
o
t
h
e
r
a
d
i
o
s
o
u
n
d
w
h
e
n
t
h
e
M
O
S
T
B
u
s
f
a
i
l
s
i
n
a
v
e
h
i
c
l
e
e
q
u
i
p
p
e
d
w
i
t
h
Top HiFi?
T
o
p
H
i
F
i
?
HiFi?
H
i
F
i
?
3. Does the SOS call function operate if the MOST Bus is down?
3
.
D
o
e
s
t
h
e
S
O
S
c
a
l
l
f
u
n
c
t
i
o
n
o
p
e
r
a
t
e
i
f
t
h
e
M
O
S
T
B
u
s
i
s
d
o
w
n
?
4. What is the location of the SOS antenna?
4
.
W
h
a
t
i
s
t
h
e
l
o
c
a
t
i
o
n
o
f
t
h
e
S
O
S
a
n
t
e
n
n
a
?
5. Why does the TCU include a GPS receiver in vehicles equipped with Navigation?
5
.
W
h
y
d
o
e
s
t
h
e
T
C
U
i
n
c
l
u
d
e
a
G
P
S
r
e
c
e
i
v
e
r
i
n
v
e
h
i
c
l
e
s
e
q
u
i
p
p
e
d
w
i
t
h
N
a
v
i
g
a
t
i
o
n
?
23
E60 Communication Systems
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