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- Path: erinews.ericsson.se!usenet
- From: etxdagr@tn.ericsson.se (Dan Green)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: Amiga and ISDN
- Date: 3 Jan 1996 13:57:21 GMT
- Organization: Ericsson Telecom AB
- Distribution: world
- Message-ID: <4ce201$32h@erinews.ericsson.se>
- References: <4btl39$5b5@news.jhu.edu>
- Reply-To: etxdagr@tn.ericsson.se
- NNTP-Posting-Host: tns307.tn.etx.ericsson.se
-
- In article <4btl39$5b5@news.jhu.edu>, robodude@deanwong.rad.jhu.edu (Zsolt Szabo) writes:
- >Not really all that impressive. I heard that somewhere along the east
- >coast there is a cable company that is apparently allowed to provide
- >internet access via their coaxial lines. They charge around $20/month for
- >access.
-
- So?
-
- >Interesting side note: their lines are roughly 625 times faster than 56k
- >ISDN. At least, that's what the bandwidth of coaxial cables is: 35 Mbps
- >(compared to ISDN's 56 Kbps).
-
- ISDN is an access network service, it's basically just a digital equivalent
- to an ordinary analogue subscriber line (ie. no A/D/A conversion in the
- exchange). It has nothing to do with the transport media. If it's coaxial
- or not doesn't have anything to do with it. ISDN is used between the exchange
- and the subscriber but the transport network (ie. between exchanges) is exactly
- the same (SDH or PDH, 2Mbps - 1 Gbps). There are 2 basic ISDN accesses that you can have, 2B+D
- and 30B+D. 625 times faster? So what you are saying is that each subscriber can
- have a bandwidth of 35Mbps each? I DOUBT IT :) That would meen that the company
- would have to reserve 18 PCM links for each subscriber.
-
-
- /Dan Green
-
-
-
-