Operation Manual

Soundcraft Vi Series™ User Guide 1112Page 2 - 6
Front Panel
The front panel contains the Status LED array.
Figure 2-5: Status LEDs.
These LEDs give an at-a-glance indication that the Local Rack is functioning correctly, or that an error
condition has occured. An illuminated green LED indicates the presence of a card, an illuminated red LED
warns of a card error.
LOCAL RACK
Local Rack Description
The Local Rack is the audio ‘brain’ of the Soundcraft Vi Series™, it contains the DSP mixing processor and
the local I/O connections.
The rack consists of a 6U processing and I/O unit, developed by Studer, called the SCore. Below this is a
3U low-noise cooling fan unit. The SCore itself consists of two sections: the upper 3U section houses the
DSP mixing core, and the lower 3U section houses the local audio I/O and also the connections to the
remote Stage Box.
The audio processing inside the SCore is independent of the control surface.
This means that the audio
will continue to pass even if the control surface is switched off or disconnected from the core.
How It Works
The control surface sends control data to the Bridge Card, which is a communication and processing hub
situated in the centre of the top 3U section of the Local Rack. The Bridge Card interprets the control data
and sends internal data to the two DSP Pro cards and the FX Card (when tted). These cards actually
process the audio. The audio input and output connections to the DSP cards are made via 4 short CAT 5
patch cables, which connect the DSP cards with the I/O rack in the lower 3U section of the core.