VS 2001
Technical Handbook
Technical Description
Page 28
Marconi Proprietary information
P/N: 779-0373/02
Revision 02
•
Audio signal coming from microphone/handset;
•
Audio signal to loudspeaker/headset;
•
Power supply voltage provided by the vehicular battery;
•
Control signals for external accessories.
The connection is carried out through the 25-pin male D-type connector (P01).
2.3.1.2
Base Band card interfacing
The physical interface between the Base Band card and the analogue part of the
vehicle equipment (R/T and P.A. cards) is carried out via two connectors:
•
J02 (36-pin female connector) with relative filter capacitors. It constitutes the
interface with the low power analogue part (R/T card);
•
J04 (6-pin female connector) with relative filter capacitors. It constitutes the
interface with the power transmission analogue part (P.A. card);
The allocation of the interface signals on these connectors and their meaning are
described in Tab. 2.1 and Tab. 2.2.
Tab. 2.1:
J02 connector description
Pin
Name
Type
Description
1
7.2 V
PWR
Analogue card power supply voltage
2
GND
PWR
Ground line
3
GND
PWR
Ground line
4
CK2304DA
OUT
Data synchronisation signal for Tx “air”
5
LATCH
OUT
Word synchronisation signal for Tx “air”
6
ITXD
OUT
Line for digital data relative to channel I of Tx for DAC
1866
7
QTXD
OUT
Line for digital data relative to channel Q of Tx for DAC
1866
8
SD
OUT
Shut down signal towards RT
9
TXON
OUT
O.C. control signal for transmission circuits on RT
10
PAON
OUT
O.C. control signal for transmission circuits on RT
11
SERDATAIN
IN
EEPROM reading serial line data on radio card
12
HCKSER
OUT
Clock synchronous serial line for 3 DAC quad, SINT and
EEPROM
13
HDATASER
OUT
Data synchronous serial line for 3 DAC quad, SYNTH
and EEPROM
14
HENDAC
OUT
Enabling signal for 3 DAC quad
15
HENEEPROM
OUT
Enabling signal for EEPROM present on RT card
16
HENSINT
OUT
Enabling signal for SINT present on RT card
17
GND
PWR
Ground line
