Infrastructure​

Hi,

Could anyone tell me if MC1 system is configurable in such a way that when a user switches on \"preset\" or \"program\", he switches on D3 and D4, while MC1 board is connected to D1 and D2 and performs all the switches as usual? So the actual switch would always look like

S1-D1-A-PGM \"”> S2-D2-B-PGM \"”> S2-D1-A-x \"”> S2-D1-A-PGM \"”> S1-D2-B-x,

where D1,...,D4 are outputs of NK router, S1 and S2 are fixed sources that MC1 actually always switches between.

All the BG sources are not synchronous on the router's inputs and I'd like to save money on frame sync and to paste only two SFS-8221's into a loop between (D3;D4) and (S1;S2). Is that possible?

Thanks a lot,

Maxim

Hi Maxim,

You can achieve this using "Resource Management" feature of the NK-router system. There are some examples starting on page 35 of the NK-VRC manual: http://www.rossvideo.com/pdf/manuals/routing-systems/nk-vrc_user_guide.pdf

You could also insert the frame syncs directly between the router output and the MC1 inputs, without using the NK-VRC.

However, neither configuration is recommended, for several reasons:

• The router switches are not timed (not on the switching line), which may cause problems for any downstream equipment
• The SFS may take significant time to re-lock, which could result in on-screen glitches
• The audio may be garbled during transition, because of the SFS locking delay

The SFS locking delay can be somewhat mitigated by increasing the MC1 "Router Delay" setting. However its maxiumum value of 15 frames will not cover the worst-case SFS locking delay. And such a large value will cause the MC1 to feel sluggish, and will limit your ability to perform quick back-to-back switches.

Regards,

-Ralph

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