Download Studer D21m IO System Components

D21m System
6.5.3 MADI HD Cards
Please note:
1.949.411, 1.949.413, 1.949.414
Starting with order nos. 1.949.411.24 and 1.949.413.23, resp., the MADI HD
cards have been equipped with the larger dual-slot front panel containing an
additional RS422 control connector (left picture). At the same time the MADI
HD card with RJ45 connectors (1.949.414) was introduced (right picture).
The D21m MADI HD card is plugged into an HD card slot in the remote I/O
box and provides the link to the hub frame. The two interfaces offer up to 64
audio channels with 44.1/48/88.2/96 kHz operation, together with embedded
control and user-accessible serial connection in each direction.
The auxiliary interface can be used as a redundant link or, in 88.2/96 kHz
operation, to extend the number of channels from 32 back to 64.
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 D21m system 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 confirms the configuration to
the system. Then all cards are activated and their audio signals are fed into
the MADI link.
The card can also be switched to master mode; it then runs with an internal
48 or 96 kHz reference.
96k/n48k
Sync
Generator
MADI
Decoder
MADI
Port
MAIN
MADI in
Sync out
CH1...32 out
CH33...64 out
UART1 out
UART2 out
MASTER IF
MASTER/nSLAVE
1
0
Selector and
Demultiplexer
0
1
FS Sync
AUX to MAIN
FS Sync
MAIN to AUX
1.949.414 only
MADI
Decoder
MADI in
out
to D21m
Backplane
CH 1...32 in
Ch 33...64 in
Ctrl
MASTER IF
0
Sync out
CH1...32 out
CH33...64 out
UART1 out
UART2 out
1
MASTER IF
96k CH Ext.
EEPROM
(D21m Command
Field Parameters)
1
0
0
MADI
Port
AUX
Microcontroller
1
D21m card
control signals
MASTER IF
0
UART
1
MASTER IF
56CH MODE
Ctrl
0
MADI
Encoder
MADI out
Mode
1
Sync in
CH1...32 in
CH33...64 in
UART1 in
UART2 in
CH 1...32 out
Ch 33...64 out
96k
CH Ext.
56CH MODE
MADI
Encoder
MADI out
RS422
Port
Pinout
Selector
6-44 D21m Modules
Mode
Sync in
CH1...32 in
CH33...64 in
UART1 in
UART2 in
Selector and
Multiplexer
0
1
SPLIT MODE
MASTER AUX
UART MODE 1
UART MODE 1
0
0
1
1
0
1
SPLIT MODE
MASTER MAIN
0
1
in
from D21m
Backplane
UART MODE 0
or UART MODE 1
1
0
UART MODE 0
1
0
UART
MODE 1
0
1
Date printed: 30.08.07