GRASS VALLEY JUPITER -, Installation And Operating Manual

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JUPITER CM-4400 Control Module Installation and Operating Manual 47
CM-4400 Control System’s Protection Features
Replacing a Failed Redundant Unit
Protection can be further enhanced by maintaining a third Control Module
(CM) as a replacement or stand-by unit (See
Figure 10 ). Should the master
fail, the redundant CM-4400 would assume control; the third CM-4400
would then be installed on the network and the failed master removed.
Control could then be manually switched to the new master. This process
would allow repair of the failed unit with no interruption in service.
When using a redundant system, the CMs must be the same type. That is,
both CMs must be either a CM-4000 or CM-4400.
Figure 10. Reserved CM-4400 Ready to Swap with a Failed CM
Preparing and Activating a Replacement CM-4400
A third CM-4400 can be kept in reserve and, in the event of a failure, have
its address altered and be installed to provide a quick replacement for the
failed unit and restore system redundancy.
CC−2010 Matrix (Cross-
point bus) cables
House sync required for vertical
interval switching.
Routing
switcher
CM 4000
Redundancy
Cable
House time
code
Crosspoint
bus port
BOP 4000 Break
Out Panel
Hub
10/100baseT
Jupiter LAN
Replacement CM 4400
CM 4400
CM 4400
071826105_Replacement_CM4000