[asterisk-users] Asterisk-Asterisk E1 connection

[Joel Maslak]

You need a E1/T1 crossover cable, which isn't straight through or like a network crossover cable.  Search online for T1 crossover and you'll find the pinout.

Remember one node needs to be the clock source (and only one node).

Technically UTP isn't the right cable for E1/T1s, but if your distance between boxes is a couple hundred feet or less, it will work fine.

You might also look at TDMoE.  Ethernet interfaces are a lot cheaper than E1s.

On Apr 11, 2011, at 7:43 AM, Alejandro Cabrera Obed <aco1967 at gmail.com> wrote:

> Dear, I have two Asterisk PBXs with an E1 interface/RJ-45 port in both
> boxes. I need to connect both PBXs with E1/R2 and UTP cable.
> 
> What are the requirements to deploy the UTP cable ??? Straight-through
> or crossover ??? What are the pinouts in both peers ???
> 
> Thanks a lot,
> 
> Alejandro
> 
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