DSB75 Development Support Board Rev. B1 Hardware Description
Confidential / Released
DSB75_hd_v12
Page 18 of 96
2008-08-26
2.2 System
Overview
Antenna
or GSM
tester
ASC0
2 LEDs
for I2C
COM1
COM2
PC
C
O
M
2 (
R
S-
232C
)
C
O
M
1 (
R
S-
232C
)
Lab
Power
Supply
9V...15V
I2C
dev
ic
e
M
eas
ur
em
ent
equi
pm
ent
Ignition
Emergency
restart
Handset
SIM
card
Plug-in
charger
LE
D
DS
B
O
n
Battery
ASC1
Power supply
Bat
ter
y c
onnec
tor
Lumberg
RF
RF
R
F c
abl
e
Audio
interface 1
Audi
o i
nt
er
fac
e 2
or
c
har
gi
ng i
nt
er
fac
e
DSB75
SMA
RF
DAI
interface
Digital audio
measurement
equipment
or codec
X100
S421
S420
X101,
X102
X51
1
X505
X5
06
X503
X502
V430
X602
X400
X401
X202
X703
X700
or X701
V503, V504
X201
B2B
+
-
ASC2
COM3
C
O
M
3 (
R
S-
232C
)
X205
D
ebug i
nt
er
fac
e
X110
USB B
USB A
U
S
B dev
ic
e
Card
holder
SD
card
X301
Card
holder
LE
D
mo
du
le
O
n
V431
or
SPI
1/
2 dev
ic
e
X510
I2C
EEPROM
8 LEDs
for GPIOs
V242 - V243,
V450 - V455
80 Test points
GSM
module
Relay box
COM4
R
em
ot
e c
ont
rol
RF
Flex
cable
(option)
GSM
module
al
ter
nat
iv
e m
odul
e
connec
tion
R
F c
abl
e
D500
X120, X121, X203,
X405, X410, X411,
X420, X421, X500,
X710
Jumper
I2C
SPI
X501
ORGA
SIM test
SIM test
12 LEDs
for ASC0,
ASC1
V230 - V241
Figure 1: System overview
