s vermill wrote: > > Robert Perez wrote: > > > > yes you can do it. > > It uses pins 1,2 4,5. > > So you make a crossover cable with each pair > > 1 ---- 2 > > 2 ---- 1 > > > > 4 ---- 5 > > 5 ---- 4 > > > 1 & 2 to 4 & 5, not as above. Also, it's interesting that most > people say 1 to 4 and 2 to 5. I don't have a copy of any specs > offhand, but it's actually 1 to 5 and 2 to 4. Being bipolar > though, it doesn't matter. Ones and zeros are signalled by the > magnitude of difference between the potential at the A and B > leads. In other words, current is caused to flow or it's not. > Doesn't matter which direction. I'll see if I can dig up > something official on the pins...
Well I admit that I didn't search very hard, but I couldn't find a USOC website that wasn't affiliated with the olypics. USOC defines the RJ set of connector bodies. Looking at several vendor pages, it would appear as if the consensus is that: Tip = 2 Ring = 1 and Tip1 = 5 Ring1 = 4 Making it 1 to 4 and 2 to 5. That being the case, I stand corrected. But again, it doesn't matter. There's no such thing as a tip/ring reversal on a T1 (sending junior techs to troubleshoot such problems used to be somewhat of a right-of-passage in certain circles). Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61509&t=61487 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
