Channelized implies that it's destined for circuit based equipment - for example, a
PBX - to handle circuit switched voice and/or data traffic.
Channelized means that the T1's [or FT1's] bandwidth is TDM'd [Time Division
Multiplexed] into discrete 64k chunks. [even if there's only 56k available to handle
voice/data traffic - there's still 64k chunks].
The discrete chunks lend themselves very well to synchronized switching and
cross-connection - as in a PBX or any telephone switch.
An unchannelized T1 is just a data pipe Nx64k wide. It's generally what would be at
the router side of a CSU/DSU - more suitable for packet switched applications.
This is - in a way - an oversimplification of this stuff, but I hope it's helping....
Drew
Drew Mooney
Systems Integrator
Invisix
T-Mobil GPRS Team
+44-(0)771-505-5944
-----Original Message-----
From: Jean Stockton [EMAIL PROTECTED]
Sent: Tue, 08 Aug 2000 11:12:32 -0400
To: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: RE: T1, FT1 and Channelized T1
fracT = 56k or 64k minimum (generally 64k)
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Oz
> Sent: Tuesday, August 08, 2000 4:12 AM
> To: Jim Bond; [EMAIL PROTECTED]
> Subject: Re: T1, FT1 and Channelized T1
>
>
> T1 = 1.536mbps
> Fractional T1 is 128 k minimum increasing in 64 k chunks
> Channelized means it can be split up into 24 channels
>
> Some folks use the term fulll T which to me means a fat 1.536 meg pipe
> yes I know it listed as 1.544 but thats the gross BW you lose 8k in
> housekeeping..
> its real name should be a DS-1
>
> i had great link that explained all this i will try and find it for you
>
> Oz
> http://www.mcseco-op.com/helpfull_links.htm
> Can someone tell a little on the difference among T1,
> Fractional T1 and Channelized T1? I'm bit confused.
>
>
>
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