similar to: E1/T1 back to back ??

Can't anyone stop self-promotion and tell the poor guy what he needs. A T1/E1 X-over cable using an RJ-45 (8-cond.) is pinned out as follows: 1 - 4 2 - 5 3 - NU 4 - 1 5 - 2 6 - NU 7 - NU 8 - NU NU = Not Used I have not in my experience seen any problems with using a Good Quality Cat5 vs. Cat 3 (telco standard) cable for X-connects. YMMV, but you should be fine. As far as the shielding

Hello Im from Denmark and i've just got my Digium TE405P. But i have some problems when i connect it to my E1 connection (ISDN30). My telco delivered a alcatel box witch have a G.703 120ohm (DB9 with a serial to rj45) and a 75ohm coax connection. I've tried to connect using the 120ohm with rj45 and a ordinary utp cable. But it dosent seem to work. I've tried several zaptel.conf

> Close. 10/100mbps Ethernet uses wires 1,2,3,6 but that is pair 2 & 3. > Pair > one is the pair up the dead center (pins 4&5), pair 2 is pins 1&2, pair 3 > is > 3&6 and pair 4 is 7&8. A T1 uses pairs 1&2, which is why you can't use a > regular crossover cable for a T1 crossover, but you can use a regular > ethernet patch cable as a T1 patch

The "telco guys" probably did something non-industry standard and reversed send and receive in the jack that they plugged the CAT5 into. Sure it works, sure it is easier, sure it is not the correct way of doing things. Thanks, Steve ________________________________ From: asterisk-users-bounces@lists.digium.com on behalf of Lacy Moore - Aspendora Sent: Sat 4/22/2006 2:55 PM To: Paul

Hi! I have the chance to play with a couple of E400P cards, each installed in a IBM e330 XSeries servers (2 x 1GHz P-III CPU 2 Gb RAM, 36Gb SCSI HDD with RH8.0 2.4.18-smp kernel), and I'm trying to test/benchmark this e330/E400P combo generating calls thru /var/spool/asterisk/outgoing One e400P if doing the carrier work making calls and the other just receives the calls: Server#1

At Sangoma we do quite a lot of back-to back T1 and E1 connections. T1 is not a very fussy connection, as the baud rate is only about 750 kbps. In our experience, for error free communications you can use the following rules of thumb: Up to 50 ft: Flat patch cable Up to 500 ft: Ordinary twisted telephone cable Cat 5 may be overkill unless you are going hundreds of feet. David Yat Sin

Is there any technical difference between a T1 cable and a cat5e patch cable as far as using them with Digium T1/E1 cards? Can PRI circuits terminating at a smart jack connect successfully to Digium cards using straight through CAT5e cables? If so, are they using all of the pins in the cable? Thanks in advance

I was once told by a lineman that the cables they use didn't have that many twists in them because it wasn't needed, and that the extra twists would effectively use more cable and thus cost and weigh more than triple what they do now. He told me that with the number of twists in the Cat 5 cable it would cancel out any interference, but he also stated that the effective length was

> I've never bothered to check to see if cat5 cables use the appropriate > mating twisted pairs or not. Since the pinouts are different for cat5 vs > T1 cables, I'd have to guess a single strand is used from two different > twisted pair groups. That wouldn't be cool, but in short runs it > probably doesn't have much of an impact. > IIRC, standard Ethernet uses

Hi, I am new with asterisk. I am setting a Wildcard TE405P. E1s in Italy come in on a pair of RG-59 coax cables with BNC connectors. So I need an adapter/balun http://www.allcomtlc.com/al_g703n3.htm . I have It but I am not sure that It works. I have configured my asterisk in this way: zaptel.conf span=1,1,0,ccs,hdb3,crc4 dchan=16 bchan=1-15,17-31 loadzone=it defaultzone=it zapata.conf

I want to replace a custom PBX, that is infront on a IVR system based on OLD NMS AG-E1 Card. The Cards is configurated with CAS Digitalmode, someone can give me some info about Digim Cards CAS configuration i need a conversion Table? I wanto to don't touch configuration on winbox, i want only replace HWPBX box with asterisk. Diagram Telco E1 ===>Proprietary PBX========(CAS)===>IVR

My telco used cat5 as well for the demarc to CPE. It's also with noting that many channel banks, such as my Atlas, and zapata.conf itself also have parameters to allow you to tune the gains to compensate for cable signal loss. I've never had to touch them, and my CPE is about 300 feet from the PRI demarc (with an ordinary Cat5 cable connecting them)

> Unless you're going for some kind of distance record, standard Cat5 will > work > without any issue on any modern installation. As I said, I'm pretty sure > (not 100%, but close) that the T1 specification is only Cat3, since it's > standard BellCore wire and they don't run your T1 loops (which aren't T1 > anymore, they're DS1 over HDSL or HDSL2) in

Hi again folks! ;) As before, I will transform one E1 30 Channel PRI into 30 FXS channels using Adit 600. Now I'm into choosing server platform. And the two opponents are: * Dell PowerEdge 750 w/ SCSI RAID (or even SATA RAID1) * FujistuSiemens PRIMERGY RX100 S2 (SATA RAID1) As I've seen people having problem with HP server, I havn't looked at it at all. What experience do you

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

I have used cross-connect wire from the spool to make T1 crossover cables with RJ45 ends. All that matters is that pin one goes to four and two goes to five on both ends. ________________________________ From: asterisk-users-bounces@lists.digium.com on behalf of Andrew Sent: Sat 4/22/2006 2:51 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: Pinouts for T1/E1

I'm looking to connect a BMC 450 to an asterisk with a Digium Quad E1 card. Am I right in thinking that I'll need a special 'crossover-E1' RJ45 cable? If so, any clues where I might buy one in the UK? The Digium card sellers don't seem to stock such a thing. Thanks. Tim. Tim Panton - Web/VoIP consultant and implementor www.westhawk.co.uk

I for one think it is a great idea to buy a book with hard earned money and wait a few days to a week just to get an answer to a question that is freely available on the internet immediately. Hard pressed to think of anything in the "book" that is not on with wiki with more up to date and useful information. -----Original Message----- From: Alexander Lopez

please can someone send to me his files like zaptel & zapta if he si using TE110P thank you

I agree. I haven't had a problem using CAT-5, even for long runs, however it's not a real T-Carrier cable and I didn't know how old the PBX is. Paul >I have not in my experience seen any problems with using a Good Quality >Cat5 vs. Cat 3 (telco standard) cable for X-connects. YMMV, but you >should be fine. As far as the shielding goes, I use UTP cables and >Connectors