11-05-2007 01:28 AM - edited 03-03-2019 07:24 PM
Can I run a long distance leased line between two routers with VWIC-2MFT-G703 and VWIC-2MFT-T1 interfaces?
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11-05-2007 03:14 AM
No, VWIC-2MFT-G703 can be used for E1 only:
Please refer to:
http://cisco.com/en/US/products/hw/routers/ps274/products_tech_note09186a00800b6e0f.shtml
However, for intercontinental leased lines, you can have situations in which the circuit is T1 on one side, and E1 w/ 24 timeslots on the other, so the answer to the original question would be yes for that particulal case. Note again that to terminate such frame circuit the more expensive VWIC-2MFT-G703 would not be necessary, as a simple VWIC-xMFT-E1 would be enough.
Hope this helps, please rate post if it does!
11-05-2007 01:33 AM
yes you can
The G703 card can be configured for both T1 as well as E1.
HTH
Narayan
11-05-2007 03:14 AM
No, VWIC-2MFT-G703 can be used for E1 only:
Please refer to:
http://cisco.com/en/US/products/hw/routers/ps274/products_tech_note09186a00800b6e0f.shtml
However, for intercontinental leased lines, you can have situations in which the circuit is T1 on one side, and E1 w/ 24 timeslots on the other, so the answer to the original question would be yes for that particulal case. Note again that to terminate such frame circuit the more expensive VWIC-2MFT-G703 would not be necessary, as a simple VWIC-xMFT-E1 would be enough.
Hope this helps, please rate post if it does!
11-05-2007 04:14 AM
yes Paolo is right
I just checkked and found that i havew configured the timeslots to 24 to match the T1
Narayan
11-05-2007 07:13 AM
Hi,
Just on higher view of the tech may be the following points could be helpful:
1. G.703 / G.704 are always E-1 Standards
2. G.703 (sometimes referred as Unframed E-1) is available as Balanced (Co-ax 120 Ohms) or Unbalanced (Twisted Pair - 75 Ohms) cabling
3. G.703 can give you upto 2.048 Mbps per link
4. G.704 can give upto max 1.984 Mbps as one channel is taken for framing as the term Framed E-1
For a bit more of information please visit:
http://www.patton.com/technotes/G.703_faq.pdf
Hope that helps,
Please rate it helps.
Kind Regards,
Wilson Samuel
11-05-2007 07:23 AM
Hello,
to be more exact, about point 1 above, the G.703 standard actually defines all plesiochronous electrical transmission from 9.6 kbps (If I recall correctly, up to 52 mbps, including T1 and E1.
This is why tehcnically speaking, T1 *is* G.703, although in cisco parlance, G.703 means E1 unframed.
So in reality, a framed E1 circuit means G.704 over G.703.
11-05-2007 11:31 PM
thank you guys !!!
But how is VWIC-xMFT-G703 different from VWIC-xMFT-E1?
If i am right the G703 can also support unframed E1 whereas the E1 VWIC cannot.is it right?
11-05-2007 11:36 PM
Correct
T1/E1 module cannot be configured for unframed E1
Narayan
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