CCNP - difference between E1 and Pri

Author

difference between E1 and Pri

kumar99

2003-01-21, 2:43 am

Guys i really need help on this....i want to know the diference between E1 and Pri....
i know the basic differnces like line coding, framing, speed, timeslots but thats basically a differnce between T1 and E1(flavors of Pri)...my senior says that there is a difference between E1 and Pri...my senior was saying something like when they were setting up an ISP, they were asked by the exchange people about the Pri and then about E1...i dunno what they asked them....
if there's someone who can answer this query which sounds a bit stupid i'd really be greatful to him/her....desperately waitng for a reply....
Regards
Kumar
(Pakistan)

Yankee

2003-01-21, 3:34 am

I'm guessing you want to know that the PRI is for ISDN and the E1 is for a data circuit like a point to point or frame-relay. At least those are the common uses.

Yankee

wirelessboy

2003-01-21, 5:36 am

E1 and PRI are totally diferent things, coming together.

E1 is just a 2 Mbps line, just like a T1 line which is 1.5 Mbps.

Your normal E1 line, that is what we call a 2 Mbps Leased Line right?, is actually a DSL line, it uses DSL tech to deliver a 2 Mbps or a 64 Kbps digital connection. So it should be E1 DSL line, okay.

An E1 PRI is a 2 Mbps line which has 32 channels of 64 Kbps bandwidth. We normally connect a RAS to it, usually used at a central site , so that all remote offices can connect through ISDN or Analog lines to the central Application Server, using the RAS.

We can also use it for giving 30 Telephone lines to a call centre, that is Telephone Dept gives us a number say 500, all customers can dial 500 and get connected to 500 through 529, so 30 customers at a time in a single line , Got it.

E1 PRI supports both Analog as well as Digital, so we can use 56 Kbps analog modem, 64/128 Kbps ISDN modem also.

next time i tell u what happens at TELCO for E1-PRI, ISDN and E1-DSL

bye

kumar Hmmmm, a strange name in pakistan man.

kumar99

2003-01-22, 11:59 am

Hey wireless man....i was eagerly waiting for that kind of answer....thanx man...i would really like to hear about what happens at TELCO for E1-PRI, ISDN and E1-DSL...maybe this is the thing i was trying to ask but couldn't explain clearly....please give me a reply as soon as possible.....

Well now lets discuss something on ur comment...
Buddy all i can is that u can think of we being stuck here....actually our business is here and its really very difficult to wind up things when u're living in a country since partition days...anyhow i enjoy myself here but one things for sure....i guess u're from my neighboring country...well i would like to say that Bombay is really getting advance day by day...i gave it a visit last year and man its so modernized and stuff is so cheap....the nightlife is really thrilling there....infact i even went to Kaun Banega CrorePati's shooting and got a chance of shaking hands with the Big B...most of my realtives are in India...
will tell u more of my adventures later...take care and don't forget to reply about the queries i made...take care pal....

Kumar

moondog

2003-01-27, 5:50 am

If you're really interested in the theory you should join pd.acm.org. They have
numerous courses on atm, isdn, and about a 100 other topics. Each course is about a
6 to 8 hour lecture. It costs less than a
$100 a year. Wonderful stuff!!!

hassasin

2003-04-28, 5:20 am

Hi wirelessboy,

I am really interested in you to explain what happens at Telco side for E1-PRI, ISDN and E1-DSL.

Can you please explain it?

BTW, do you know some good book about this?

Thanks in advance.

wirelessboy

2003-04-28, 8:51 pm

hi hassasin and kumar

actually i sent a mail to kumar, i guess i medded up his mail id.
its a long one, i will mail it to u guys ASAP.
regards

SureshHomepage

2003-05-02, 9:32 pm

Wirelessboy!
I really enjoed your down-to-earth explanations on the E1 and PRI. Would be happy to share your mails on E1-PRI, ISDN and E1-DSL. Thanks!

wirelessboy

2003-05-03, 12:29 am

hi suresh
come on now, you are the expert here!
sure i will send u
regards

Randhir

2003-05-06, 6:45 pm

Hey Mannnnnn...

I am also interested in know about it. I guess you won't mind marking a cc to me tooo.

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