SoundCraft Vi5000 User Manual page 20

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Vi5000/7000 User Manual
HARDWARE > Vi STAGE BOX
The 9U Vi Stagebox houses 64 mic/line inputs and 32 analogue line outputs. Mic/line amp gain, 48 V phantom power
and 100 Hz lo-cut filter before the A-D converters can all be controlled remotely from the desk. The Stagebox is availa-
ble in Standard 64/32 configuration, or can be reconfigured as part-fitted or with alternative cards as required.
The Stage Box contains 12 Slots for 6U-high Audio I/O Cards, a GPIO/LED Card and the MADI HD Card which con-
tains the Stage Box-to-Local Rack connection. Slots are labelled from left to right A-L, and the connectors on the cards
are numbered from top to bottom 1-8. These labelling references are used by the patching system (see chapter 11)
when the user wishes to patch the connectors to input channels or output busses.
The primary power supplies and an additional cooling fan with filter can be found on the rear panel.
Primary power supply
The primary power supply connects directly to the IEC inlet and provides a full range AC inlet, converting 100V to
240V ac to 24V DC. The Stage box is fitted with two power supplies, providing redundancy for those that require it
Redundant MADI Cable Operation
The system can be used with either a single cable connected to the MAIN or AUX ports (usually MAIN), or, for
additional security, two cables can be used to provide fully-automatic redundant operation. The 3-position INPUT SEL
toggle switch on the Stagebox MADI card determines the mode of operation.
For single cable operation: the switch must be set to either 'MAIN' or 'AUX', depending on which socket is being used.
For dual redundant operation: the switch MUST be set to the 'RED' position.
In redundant mode, the system will automatically switch to the other cable if a fault is detected on one cable. Note that
it will then stay on the second cable even if the connection is restored on the first cable. This is to prevent intermittent
switching.
For More information of available Stageboxes, cards, and so on, please see Appendix 1 at the end of this
manual.
4.3: Vi STAGE BOX
4.3: Vi STAGE BOX