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Point-to-Point E1 to T1
- Thread starter assistu
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E-1s are 32 channels, T-1 are 24 channels, so I don't see how they could be capatible. If u are a Avaya technician u could call ETAC in denver, but they only talk to Avaya or Avaya partner technicians.
I imagine what has to been done is to make the E-1 side a T-1, beings how E-1 is not legal on public networks in the USA. U would think that there would be something on the subject at support.avaya.com though.
I imagine what has to been done is to make the E-1 side a T-1, beings how E-1 is not legal on public networks in the USA. U would think that there would be something on the subject at support.avaya.com though.
I just thinking out loud again but have you tried a TN464 on the US side and translate it as E1. This way you can have E1 on both sides. On the DS1 page change the bit rate from 1.544 (T1) to 2.048 (E1). The circuit has to be 2.048 from the carrier.
Hope this makes sense
ED
1a2 to ip I seen it all
Hope this makes sense
ED
1a2 to ip I seen it all
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- #4
Thank you both. We did try just setting it to an E1, but it fails even Test #138. It's just not compatible with the local system when it's set as an E1. I did call tech support (which isn't always fun) and they said the carrier is responsible for converting it. So, in the US it's set as a T1, in the other country it's set as an E1 (missing 6 channels) and the carrier converts it in the network. Thanks again.
There are third party converters that can translate, and I'm SURE lucent has a card.
T-1 24 channel uses robbed bit signaling, which places supervision (A+B bits) into each channel's data stream innternal to the channel it's supervising.
E-1 uses channels 16 and 32 to carry all the channel supv'n.
Virtually all switch manu's make an E-1 card (because they want to sell their switches internationally. Simple for them to do also because almost all switches are designed with a 32 timeslot backplane, (because the CPU uses 32 bit). then CPU just ignores slots 25 through 32.
T-1 24 channel uses robbed bit signaling, which places supervision (A+B bits) into each channel's data stream innternal to the channel it's supervising.
E-1 uses channels 16 and 32 to carry all the channel supv'n.
Virtually all switch manu's make an E-1 card (because they want to sell their switches internationally. Simple for them to do also because almost all switches are designed with a 32 timeslot backplane, (because the CPU uses 32 bit). then CPU just ignores slots 25 through 32.
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