DiGiCo SD Series - Manual (Page 93)

Chapter 3 - Connections & Multi Console Setups
3-3
1) Open the Setup>Audio I/O panel, select the shared rack port from the port's list (eg Port 1) and then press the Shared button
for that rack. Do this on both consoles and the rack control functions Isolate/Receive Onlly/Full Control will become available.
2) One console should be fully connected to the racks using the Setup>Audio I/O panel's Full Control button for the Shared
racks.
3) The operators should agree on and set a level of analogue gain that provides enough headroom for the required application.
4) The second console should connect to the Shared racks in Receive Only mode
5) Gain Tracking (the Track buttons at the top of the Input channel screen) can be switched on for the console that is in Receive
Only mode for all the channels that are being shared.
6) When an analogue gain control is changed on the "Master" console, the "Slave" console's analogue gain should reflect the
changes and the digital trim control should compensate for this change by moving by the same amount in the opposite direction.
Relative Gain-Tracking - Snapshot Recalls Total Gain
“Relative Gain-Tracking” is implemented as a “Snapshot Recalls Total Gain” option at the bottom of the Snapshot Global Scope
panel. When a snapshot recalls an input channel trim, it compares the snapshot’s stored analogue gain against the current gain
on the channel’s input socket. If there’s a difference it offsets the value recalled by the trim. This only happens when the
socket’s rack is in Receive Only, or the analog gain is not in Recall Scope.
3.2.2 FOH & Mons sharing a stage SD Series Rack (MADI) .........
When using SD Racks the setup is very similar but the rack split from an SD Rack can be acheived without an external splitter. The
SD rack has two built in split outputs which can each provide a 56 channel MADI stream at 48KHz. The added advantage of the
SD rack split is that it can be set to provide an automatically gain tracked MADI stream. This can be set on the rack itself or from
the Audio I/O panel on the console. This means that the receiving console does not need to provide the gain tracking facility.
FOH & MONITORS
WITH SD-RACKS at 48KHz
USING MADI ONLY
MONITORS
Audio Sync = MADI IN ON PORT 1
Uni-Directional Gain Tracking
FOH has control of the Analogue Gains
and Monitors can track this
OPTIONAL
LOCAL RACK
SHARED
STAGE RACK
OPTIONAL
LOCAL RACK
AUX MADI
IN/OUT
AUX MADI
IN/OUT
AUX MADI
IN/OUT
2 x 48KHz
MADI SPLITS
ENGINE B
MADI PORT 1
IN/OUT
ENGINE A
MADI PORT 1
IN/OUT
ENGINE A
MADI PORT 1
IN
ENGINE B
MADI PORT 1
IN
ENGINE A
MADI PORT 2
IN/OUT
ENGINE A
MADI PORT 2
IN/OUT
ENGINE B
MADI PORT 2
IN/OUT
ENGINE B
MADI PORT 2
IN/OUT
MAIN MADI
IN/OUT
MAIN MADI
IN/OUT
MAIN MADI
IN/OUT
FOH
Audio Sync = MASTER
Note - The console that is controlling the gains should be set to Setup / Audio Sync = Master and the console
that is tracking should be set to Setup / Audio Sync = MADI 1