From: Con Spathas (con@spathas.net)
Date: Sun Jul 15 2007 - 23:07:27 ART
I had a similar question re the vwic-mft-e1 and vwic2-mft-e1 in with Cisco
at one point....
Now please correct me if I'm wrong anyone but afaik the VWIC2's were
primarily designed to be less susceptible to varying potential difference
problems in the line.
For example I had a site where the 1st gen E1's wouldn't come up unless I
had a pair of ballun's converting from 120Ohm to 75Ohm and then back to
120Ohm. Even with the balluns I still saw line errors. We replaced the
VWIC(1)'s with VWIC2's and the balluns were no longer required. Still saw
some line errors but not as many!
Having said that tho I used the same 1st gen VWICs at another site with E1s
and they're clean as a fiddle - no balluns required. Mind you the site
mentioned in the last paragraph was a dodgy site with a dodgy telco.
Cheers!
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Radioactive Frog
Sent: Monday, 16 July 2007 02:41
To: Cisco certification
Subject: vwic-mft-t1 vs vwic2-mft-t1
Anyone can shed some light on the above - what's the difference?
Thanks
Frog
This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:41 ART