Snell Sirius 830 - Video Crosspoint Failure; Replacing a Failed Video Crosspoint Module Using the Door PC

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Sirius 800 www.snellgroup.com Crosspoint Faults and Replacement

7.2 Video Crosspoint Failure

When a video crosspoint routing failure is detected by the redundant crosspoint checking

algorithm the Nucleus router controller performs one of the following actions based on the

configuration in Workbench (see section 7.6 for details on changing this setting):

• Move the failed route to the redundant crosspoint (default when shipped).

• Move all routes from the crosspoint module with the failure to the redundant

crosspoint module

• Just notify the user and leave them to take appropriate action.

7.2.1 Replacing a Failed Video Crosspoint Module using the Door PC

If one or more routes fail on a video crosspoint module this will be displayed on the Main or

Expansion Video Crosspoint Matrix Status screen. A typical example of how the buttons will

look is listed below (see Fig 32. or Fig 33. on page 61 for button and parameter locations):

• Fail Found indicator - Red

• Fault Present indicator - Red

• First Failure Detected - Failed Source and Destinations will display the first

failed route

• XpntCardNone - Grey

• Failed Action: - text as configured in Workbench

• Sirius 830

• XpntCardMain830 Yellow (indicates the crosspoint has failed)

• Sirius 840/850

• XpntCardxxxToxxx_x - Yellow (where xxx is the failed crosspoint module)

Note:

• Any failure needs addressing immediately to retain protection

• For information on replacing the failed crosspoint card see section 7.2.1.

• Following a change in source for a given output (routing change) it can take several

seconds to check the Sirius 800 redundancy. It is assumed that it is okay until this

is done and so no alarm is flagged during this checking period.