E1 Cabling for VWIC2-2MFT-T1/E1
in [Cisco]
|
Prev: site-to-site and easy vpn server on same interface
Next: 2600 w/ NM-16A vs. 2511 Router as a console terminal server?
From: James.Brown on 22 Apr 2008 09:42 All, Could anyone tell me whether the following are three valid alternatives for E1 cabling please? Option 1 - RJ48C: 1 to 7 2 to 8 4 to 2 5 to 3 http://www.arcelect.com/Rj-48c.gif Option 2 - T1/E1 Crossover: 1 to 4 2 to 5 3 to 3 (Not Used) 4 to 1 5 to 2 3 to 3 (Not Used) 6 to 6 (Not Used) 8 to 8 (Not Used) http://www.corelatus.com/gth/faq/img7.png Option 3 - Straight-Through Many thanks James.
From: James.Brown on 22 Apr 2008 10:13 On 22 Apr, 14:42, "James.Brown" <j.a.m....(a)btinternet.com> wrote: > All, > > Could anyone tell me whether the following are three valid > alternatives for E1 cabling please? > > [...] > > James. Sorry to be so terse in the post above. It's really just option 1 that I'm slightly dubious about as there are plenty of people selling an "E1 RJ48C" - they just don't document what the pinout are!
From: Doug McIntyre on 22 Apr 2008 10:14 "James.Brown" <j.a.m.e.s(a)btinternet.com> writes: >Could anyone tell me whether the following are three valid >alternatives for E1 cabling please? >Option 1 - RJ48C: >1 to 7 >2 to 8 >4 to 2 >5 to 3 >http://www.arcelect.com/Rj-48c.gif I don't think you are looking at this document correctly. This wiring as you specify makes no sense. The picture does make sense, but only inso much as a telco installer would be doing it. >Option 2 - T1/E1 Crossover: >1 to 4 >2 to 5 >3 to 3 (Not Used) >4 to 1 >5 to 2 >3 to 3 (Not Used) >6 to 6 (Not Used) >8 to 8 (Not Used) >http://www.corelatus.com/gth/faq/img7.png Yes, this would a be T1/E1 cross-over.. Used to hookup two devices back-to-back. >Option 3 - Straight-Through Probably what you should be using?
From: Bod43 on 22 Apr 2008 12:52 On 22 Apr, 16:14, Doug McIntyre <mer...(a)geeks.org> wrote: > "James.Brown" <j.a.m....(a)btinternet.com> writes: > >Could anyone tell me whether the following are three valid > >alternatives for E1 cabling please? > >Option 1 - RJ48C: > >1 to 7 > >2 to 8 > >4 to 2 > >5 to 3 > >http://www.arcelect.com/Rj-48c.gif > > I don't think you are looking at this document correctly. This wiring > as you specify makes no sense. The picture does make sense, but only > inso much as a telco installer would be doing it. > > >Option 2 - T1/E1 Crossover: > >1 to 4 > >2 to 5 > >3 to 3 (Not Used) > >4 to 1 > >5 to 2 > >3 to 3 (Not Used) > >6 to 6 (Not Used) > >8 to 8 (Not Used) > >http://www.corelatus.com/gth/faq/img7.png > > Yes, this would a be T1/E1 cross-over.. Used to hookup two devices > back-to-back. > > >Option 3 - Straight-Through > > Probably what you should be using? All of the, relatively few, 1's that I have had anything to do with have used a Straight through cable to connect the end equipment - a cisco router. Same with PRI flavour E1s and I think T1's too although the latter have been a bit far away for me to inspect the cable personally. I am in the UK.
From: James.Brown on 23 Apr 2008 04:01
On 22 Apr, 17:52, Bo...(a)hotmail.co.uk wrote: > On 22 Apr, 16:14, Doug McIntyre <mer...(a)geeks.org> wrote: > > > > > > > "James.Brown" <j.a.m....(a)btinternet.com> writes: > > >Could anyone tell me whether the following are three valid > > >alternatives for E1 cabling please? > > >Option 1 - RJ48C: > > >1 to 7 > > >2 to 8 > > >4 to 2 > > >5 to 3 > > >http://www.arcelect.com/Rj-48c.gif > > > I don't think you are looking at this document correctly. This wiring > > as you specify makes no sense. The picture does make sense, but only > > inso much as a telco installer would be doing it. > > > >Option 2 - T1/E1 Crossover: > > >1 to 4 > > >2 to 5 > > >3 to 3 (Not Used) > > >4 to 1 > > >5 to 2 > > >3 to 3 (Not Used) > > >6 to 6 (Not Used) > > >8 to 8 (Not Used) > > >http://www.corelatus.com/gth/faq/img7.png > > > Yes, this would a be T1/E1 cross-over.. Used to hookup two devices > > back-to-back. > > > >Option 3 - Straight-Through > > > Probably what you should be using? > > All of the, relatively few, 1's that I have had anything to > do with have used a Straight through cable to connect > the end equipment - a cisco router. > Same with PRI flavour E1s and I think T1's too > although the latter have been a bit far away for me to > inspect the cable personally. > > I am in the UK.- Hide quoted text - > > - Show quoted text - Thanks All. This particular E1 PRI is in Italy and we're having problems with the straight-through, hence the need for me to make up an alternative and send it out by post. Doug - if I'm interpreting the diagram of the RJ48C incorrectly, could you explain what the pinouts illustrated are please (apologies, but I'm fairly new to Networking/cabling). Regards James. |