Date printed: 24.01.12
13
D21m System
4
SySTEM ExaMPlES
4.1 System with remote and local I/O
4...6 AES/EBU Outputs
to Monitoring Frame
Hub
(and I/O)
Remote
I/O Box
96 Ch In
96 Ch Out
96 Ch In
96 Ch Out
96 Ch In
96 Ch Out
RS422 for Mic Control
Remote I/O Box, equipped w. e.g.:
• 44 Mic Inputs
• 8 Line Outputs (Returns)
or e.g.:
• 40 Mic Inputs
• 8 Line Inputs
• 8 Line Outputs (Returns)
or e.g.:
• 36 Mic Inputs
• 16 Ch ADAT In, 16 Ch Out
• 8 Line Inputs
• 8 Line Outputs
Local I/O Hub, equipped with e.g.:
• 0...64 Ch MADI In/Out for
Stage Box Link
• 0...56 Ch MADI In/Out for
e.g. Multi-Track Recorder
• 16 AES/EBU In/Out (1 In and
5 Outs used for Monitoring)
• 32 Ch ADAT In/Out (Spare)
• 8 Mic Inputs
• 8 Line Inputs
• 8 Line Outputs
0...64 Ch Optical MADI
0...64 Ch Optical MADI
(Redundancy)
96 Ch In
96 Ch Out
SCore &
I/O Frame
Notes
Some of the I/O cards are ‘double-width’, of which a maximum of 6 may be
fitted into one D21m frame. When only using single-width cards, a maximum
of 12 can be fitted. Therefore, e.g. a maximum of 48 microphone inputs may
be fitted in one (full) frame. If outputs are required as well, up to 44 micro-
phone inputs are possible since then at least one slot is used for an 8-channel
line output card.
Input and Output cards may be inserted in any order. The system is filling
up the MADI channels automatically, starting from the leftmost card subse-
quently to the right.
Since the MADI bandwidth can only be adjusted in steps of 8 channels, an
odd number of microphone cards (providing 4 inputs each) will result in 4
MADI channels without audio.
The MADI HD card versions A949.0411.21/A949.0413.21 and newer support
operation with two MADI HD cards in one frame, extending the total chan-
nel count between the hub frame and the remote I/O box to 128. The same
channel count is reached in 96 kHz mode.
For details please
refer to chapter
6.5.3
.
