[cisco-voip] 2port mft data and voice

[Michael Thompson]

There's 2 schools of thought on this one.

If you have a VWIC-2MFT-T1, then the caveat of that card is that there's
only 1 clock controller for the card.  Meaning, you HAVE to be using the
same clock for both ports.

In the VWIC2-2MFT-T1/E1 cards, there's actually discreet clock control
hardware on the card.  If you use this version, then you should be fine.  If
you use the older version, then you will have clock slips if you're using 2
different clock sources.

HTH
MT

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jonathan Charles
Sent: Wednesday, July 30, 2008 11:05 AM
To: Voice Noob
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 2port mft data and voice

Don't do it.

You will see slips on whichever port is not the clocking primary.

A PRI gets its clocking from the ISDN switch. A PTP T1 gets its
clocking from the remote router; a FR T1 gets its clocking from the
frame switch....

I have seen this dozens of times and always there are slips.

Now, the question is, do these slips matter, well, they can...

It is a gamble.


Jonathan

On Wed, Jul 30, 2008 at 8:22 AM, Voice Noob <voicenoob at gmail.com> wrote:
> Can I use a 2port MFT card and bring a voice PRI in on one port and a data
> T1 on the other port?
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
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