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8900gen-sm applications, Primary and secondary redundancy – Grass Valley 8900GEN-SM User Manual

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8900GEN-SM — Instruction Manual

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8900GEN-SM Applications

8900GEN-SM Applications

This section describes the most common applications for the 8900GEN-SM
submodule and give instructions for configuring each application. Use this
section as a guide to learning how to use the reference timing and some of
the general rules that must be followed for a successful configuration.

These release notes describe three main configurations:

Primary and Secondary redundancy (

page 21

)

Using two different Frame bus references (

page 37

)

Using Local and Multiple references together (

page 48

)

Primary and Secondary Redundancy

One very powerful function for using the dual frame bus configuration is
utilizing the 8900GEN-SM for Primary and Secondary redundancy. In this
configuration, the host modules in slot 1 and slot 3 with an 8900GEN-SM
installed, provide Primary and Secondary genlock bus timing references on
two separate buses that are fed to all modules in the frame.

If a Primary and Secondary reference are selected in configuration and the
Primary fails, the Secondary reference will take the place of the Primary.
The user can select whether to automatically reinstate the Primary refer-
ence when it recovers or it can be reset manually, The user can also select
the amount of time to allow before reinstating the Primary.