digico D5T, Руководство по эксплуатации

Страница: 153 / 166

B-7
Appendix B
When the first console stores a Cue that will change analogue gains, the second console should then store its own Cue that reflects the
required digital trim settings to compensate for that change. These Cues should then be fired at the same time (approximately) during the
show.
Note: The most important aspect of this procedure is the coordination of Cues between the two consoles. It is not advisable
for the two operators to store Cues independently of each other - they must both store Cues at the same time.
B.2.1 Redundant Optical Loop ....................................................
If an additional Optocore cable is connected to complete the loop between all connected devices, the redundant cable will ensure that a
single break in the Optocore connection will not result in a loss of function.
This applies in single or multiple console operation.
B.2.2 Redundant Engine or Mirror Console ...............................
The following information refers to a Redundant Engine but the setup for a Redundant Mirror Console is identical.
It is normally connected to the console and stage racks with optical fibre cables and two 5 metre BNC MADI cables are connected to the
auxiliary MADI port on the local Rack.
An Ethernet Crossover cable (
not a standard CAT5 cable ) is also connected between the console and the Redundant Engine or both
devices are connected to an Ethernet switch if some form of Remote control is used with the system. This could be a Remote PC running
the console software, the D5T Cue Editor, a D5TC (Theatre Masters Controller) or a standard D5(T) RC (Remote Controller).
In the unlikely event that the console’s audio engine fails, audio is automatically switched to the Redundant Engine without any interruption
in the program material.
The Redundant Engine can be set to mirror the console’s settings and therefore, in the case of loss of worksurface control on the console,
the keyboard, trackball and monitor on the Redundant Engine can be used to perform essential functions such as the firing of snapshots.
If the console’s audio engine function is recovered then the operator can transfer audio processing back to the main console at any time
with the press of a single screen button.
This diagram shows the required connections for a system consisting of a single Front Of House console, a Redundant Engine, two Stage
racks connected via optical fibre and a single local rack.
NOTE: The most important aspect of the connection system is that the optical fibre cables are always in a strict Port A to Port
B configuration. Connecting any device's A port to another device's A port may result in a malfunction of the system. The
same applies to B to B connections. If your system has more devices simply continue with the A to B rule.
When using optical connections, the console and the RE should both be set to OPTOCORE sync in the Setup/Audio Sync
panel on the Master Screen.
Stage Racks should always be next to each other in the chain so if you were connecting a third rack into the system below, it should be
positioned between Stage Rack 2 and the Redundant Engine.
Single Local Rack
Stage Rack 1 (ID30) Stage Rack 2 (ID32)
Main Console
D5 Mirror Consoles
Redundant Engine
Main MADI
Main (ID 20)
RE MADI
Mirror
RE Optocore (ID21) Main Optocore (ID20)
Redundant Loop
DiGiCo
Redundant Engine
Setup
Ethernet Crossover Cable