D21m System
6-44 D21m Modules Date printed: 30.08.07
6.5.3 MADI HD Cards 1.949.411, 1.949.413, 1.949.414
The MADI HD card is plugged into the HD card slot in the Stagebox
and provides the link to the Local Rack frame. The two interfaces offer up to
64 audio channels with 48kHz operation, together with embedded
control and user-accessible serial connection in each direction.
The auxiliary interface can be used as a redundant link.
In slave mode, the card extracts the system clock from the incoming MADI
signals and provides it to the entire remote I/O box. It detects all other I/O
cards that are inserted into the Stagebox and displays their presence on
the front panel of the frame. Once all audio interface cards are plugged in,
pressing the RECONFIG key on the front panel con rms the con guration to
the system. Then all cards are activated and their audio signals are fed into
the MADI link.
Cat5 only
FS Sync
AUX to MAIN
Sync out
CH1...32 out
CH33...64 out
UART1 out
UART2 out
Sync out
CH1...32 out
CH33...64 out
UART1 out
UART2 out
Sync in
CH1...32 in
CH33...64 in
UART1 in
UART2 in
out
to D21m
Backplane
D21m card
control signals
UART
in
from D21m
Backplane
Sync in
CH1...32 in
CH33...64 in
UART1 in
UART2 in
FS Sync
MAIN to AUX
MADI in
MADI in
MADI out
CH 1...32 in
Ch 33...64 in
CH 1...32 out
Ch 33...64 out
Ctrl
Ctrl
MADI out
Mode
56CH MODE
96k
CH Ext.
96k CH Ext.
MASTER/nSLAVE
UART MODE 1
UART MODE 0
UART
MODE 1
UART MODE 0
or UART MODE 1
UART MODE 1
96k/n48k
MASTER IF
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
MASTER IF
MASTER IF
MASTER IF
MASTER IF
SPLIT MODE
MASTER AUX
SPLIT MODE
MASTER MAIN
56CH MODE
Mode
MADI
Decoder
Sync
Generator
Selector and
Demultiplexer
Selector and
Multiplexer
EEPROM
(D21m Command
Field Parameters)
Microcontroller
MADI
Decoder
MADI
Encoder
MADI
Encoder
MADI
Port
AUX
MADI
Port
MAIN
RS422
Port
Pinout
Selector
