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Maximum link speed for sync serial

Hi,

I have a 1E1(2MB) link connected to a sync serial interface of my NM-4T in my 3640. If I want to upgrade the BW to 4MB, can the existing sync serial interface support 4MB?

If it is a WIC-2T interface, can it also support > 1E1 link?

Kindly advise the BW upgrade options.

Thanks,

Ryan

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Re: Maximum link speed for sync serial

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