[Asterisk-Users] Tellabs Echo Canceller
I am getting ready to experiment with the Tellabs 2752 echo canceller. I have a 255D shelf (and power supply), butam struggling a little on connecting the echo canceller to a PRI. The shelf has 4 25-pair amphenol connectors. The two on the line side aremarked "Receive In" and"Send Out". The 2 connectors on the drop side are marked "Send In" and "Receive Out".I will be connecting the echo canceller between a PRI and ourasterisk box. We recieve our PRI on an RJ-45 jack, so I assume I will need to make a cable that connects the"Receive Tip/Ring" pair from a Cat5 and wire it to pins 1 26 on the "Receive In" connector and take the"Send Tip/Ring" pair and wire them to pins 126 on the "Send Out". The same thing will need to be donefor the 2 drop side amphenol connectors so that I can plug an RJ-45 connector in toour Asterisk box. Does anyone have a suggestion on the easiest way to do this? I will make my own cables/connectors if necessary, but I suspect there are already adapters out andI just don't know where to look. I'd love somesuggestions on the best pieces to use if I do have to make it myself too. Thanks for any help or suggestions! Eric ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Tellabs Echo Canceller
That sure sounds like it's Analog trunks to me. I believe you will need a channel bank to go from T1 to 24 ds0's and another to go back to T1. I could be wrong but I don't think so. I don't think that's what you were really looking for as far as an echo canceller. [EMAIL PROTECTED] wrote: I am getting ready to experiment with the Tellabs 2752 echo canceller. I have a 255D shelf (and power supply), but am struggling a little on connecting the echo canceller to a PRI. The shelf has 4 25-pair amphenol connectors. The two on the line side are marked Receive In and Send Out. The 2 connectors on the drop side are marked Send In and Receive Out. I will be connecting the echo canceller between a PRI and our asterisk box. We recieve our PRI on an RJ-45 jack, so I assume I will need to make a cable that connects the Receive Tip/Ring pair from a Cat5 and wire it to pins 1 26 on the Receive In connector and take the Send Tip/Ring pair and wire them to pins 126 on the Send Out. The same thing will need to be done for the 2 drop side amphenol connectors so that I can plug an RJ-45 connector in to our Asterisk box. Does anyone have a suggestion on the easiest way to do this? I will make my own cables/connectors if necessary, but I suspect there are already adapters out and I just don't know where to look. I'd love some suggestions on the best pieces to use if I do have to make it myself too. Thanks for any help or suggestions! Eric ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Tellabs Echo Canceller
On Friday 24 June 2005 16:17, [EMAIL PROTECTED] wrote: The shelf has 4 25-pair amphenol connectors. The two on the line side are marked Receive In and Send Out. The 2 connectors on the drop side are marked Send In and Receive Out. I will be connecting the echo canceller between a PRI and our asterisk box. We recieve our PRI on an RJ-45 jack, so I assume I will need to make a cable that connects the Receive Tip/Ring pair from a Cat5 and wire it to pins 1 26 on the Receive In connector and take the Send Tip/Ring pair and wire them to pins 126 on the Send Out. The same thing will need to be done for the 2 drop side amphenol connectors so that I can plug an RJ-45 connector in to our Asterisk box. It's easy to connect: Network rx pair goes to your send out. Network tx pair goes to Receive in -- similarly your Asterisk-end rx pair goes to Receive out and your asterisk tx pair goes to Send in. I am guessing this shelf can handle 24 echo cancellation cards? It seems a little odd to split the T1s up across 4 connectors but if you're terminating to BIX or something it really does make sense. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Tellabs Echo Canceller
Sorry Guys if I look dumb on this with my post but I've never seen T1's come on in that way before. Just disregard my post. Andrew Kohlsmith wrote: On Friday 24 June 2005 16:17, [EMAIL PROTECTED] wrote: The shelf has 4 25-pair amphenol connectors. The two on the line side are marked Receive In and Send Out. The 2 connectors on the drop side are marked Send In and Receive Out. I will be connecting the echo canceller between a PRI and our asterisk box. We recieve our PRI on an RJ-45 jack, so I assume I will need to make a cable that connects the Receive Tip/Ring pair from a Cat5 and wire it to pins 1 26 on the Receive In connector and take the Send Tip/Ring pair and wire them to pins 126 on the Send Out. The same thing will need to be done for the 2 drop side amphenol connectors so that I can plug an RJ-45 connector in to our Asterisk box. It's easy to connect: Network rx pair goes to your send out. Network tx pair goes to Receive in -- similarly your Asterisk-end rx pair goes to Receive out and your asterisk tx pair goes to Send in. I am guessing this shelf can handle 24 echo cancellation cards? It seems a little odd to split the T1s up across 4 connectors but if you're terminating to BIX or something it really does make sense. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Tellabs Echo Canceller
Search the wiki (voip-info.org) for 'tellabs'. There is comprehensive documentation there. Email me privately if you need more information. Kris Boutilier Information Services Coordinator Sunshine Coast Regional District -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, June 24, 2005 1:18 PM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Tellabs Echo Canceller I am getting ready to experiment with the Tellabs 2752 echo canceller. I have a 255D shelf (and power supply), but am struggling a little on connecting the echo canceller to a PRI. The shelf has 4 25-pair amphenol connectors. The two on the line side are marked Receive In and Send Out. The 2 connectors on the drop side are marked Send In and Receive Out. I will be connecting the echo canceller between a PRI and our asterisk box. We recieve our PRI on an RJ-45 jack, so I assume I will need to make a cable that connects the Receive Tip/Ring pair from a Cat5 and wire it to pins 1 26 on the Receive In connector and take the Send Tip/Ring pair and wire them to pins 126 on the Send Out. The same thing will need to be done for the 2 drop side amphenol connectors so that I can plug an RJ-45 connector in to our Asterisk box. Does anyone have a suggestion on the easiest way to do this? I will make my own cables/connectors if necessary, but I suspect there are already adapters out and I just don't know where to look. I'd love some suggestions on the best pieces to use if I do have to make it myself too. Thanks for any help or suggestions! Eric ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Tellabs Echo Canceller
The 255D shelf supports 16 257X cards, at 24 channels per card, with a variety
of signalling modes supported per channel. Fully populated the shelf will echo
cancel 384 channels concurrently. It's carrier grade hardware that's now
obsolete, but quite good given the average prices for it on eBay - about
us$0.50/channel. Its far more economical than the hair replacement treatments
needed after trying to get zaptel/mec2 to behave... :-)
Hope that helps.
Kris Boutilier
Information Services Coordinator
Sunshine Coast Regional District
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Michael D
Schelin
Sent: Friday, June 24, 2005 2:35 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Tellabs Echo Canceller
That sure sounds like it's Analog trunks to me. I believe you
will need a channel bank to go from T1 to 24 ds0's and another to go
back to T1. I could be wrong but I don't think so. I don't think that's
what you were really looking for as far as an echo canceller.
[EMAIL PROTECTED] wrote:
I am getting ready to experiment with the Tellabs 2752 echo canceller.
I have a 255D shelf (and power supply), but am struggling a little on
connecting the echo canceller to a PRI.
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