ay, July 25, 2000 3:59 PM
To: [EMAIL PROTECTED]
Subject: Re: Clear channel question?
At 02:12 PM 7/25/00, Lonnie Paschall wrote:
>Clear channel is a t1 with B8ZS (Binary Eight Zero Substitution) line
>coding. AMI line coding steals 1 bit from every 8 for timing. Which results
>in 56K
in a previous message Priscilla Oppenheimer said:
>>Wouldn't robbed bit signalling be
>>implemented ONLY in customer-premise equipment?
>If you have a T1 tie line between your PBXs for example, the circuit really
>goes the Central Office for the phone company, of course. Doesn't their
>equipmen
Conceptually ESF or SF looks like this:
The ESF or SF "Frame" is 193 bits, with (8bits*24channels)192 bits of DS0
channels
and 1 frame bit.
[ 1bit frame(for esf/sf)][8bit DS0-1][8bit DS0-2].[8bit DS0-24]
Keep in mind that a DS1/T1 is synchronies, and as such there is no
start/stop bit
Sorry, I miss-typed the B8ZS acronym it is:
Bipolar with 8 Zero Substitution
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-Original Message-
From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 27, 2000 9:39 AM
To: [EMAIL PROTECTED]
Subject: RE: Clear channel question?
At 10:58 PM 7/26/00, Mooney Drew-DMOONEY1 wrote:
>Wouldn't robbed bit signalling be
>implemented ONLY
At 10:58 PM 7/26/00, Mooney Drew-DMOONEY1 wrote:
>Wouldn't robbed bit signalling be
>implemented ONLY in customer-premise equipment?
If you have a T1 tie line between your PBXs for example, the circuit really
goes the Central Office for the phone company, of course. Doesn't their
equipment hav
At 08:16 AM 7/26/00, Kent wrote:
>Priscilla,
>
>
>As you mentioned that the robbed bits in the super
>frames are only for voice signals, does this mean, if
>I am only transfering data, I should tell me carrier
>not use the robbed bits?
Yes.
>Still a bit confused about
>the clear channels, does t
Priscilla,
As you mentioned that the robbed bits in the super
frames are only for voice signals, does this mean, if
I am only transfering data, I should tell me carrier
not use the robbed bits? Still a bit confused about
the clear channels, does this mean, there is not bits
robbed in this channe
At 02:12 PM 7/25/00, Lonnie Paschall wrote:
>Clear channel is a t1 with B8ZS (Binary Eight Zero Substitution) line
>coding. AMI line coding steals 1 bit from every 8 for timing. Which results
>in 56Kbps instead of 64Kbps. B8ZS coding allows you to use the full DS0 rate
>of 64Kbps by using the BPV
Clear channel is a t1 with B8ZS (Binary Eight Zero Substitution) line
coding. AMI line coding steals 1 bit from every 8 for timing. Which results
in 56Kbps instead of 64Kbps. B8ZS coding allows you to use the full DS0 rate
of 64Kbps by using the BPV's in the signal for timing. I may not be 100%
te
ect: Clear channel question?
On the Foundation Routing and Switching there was a question What is a clear
channel?
Anyone met this qeustion and can provide me some explanation?
Thanks,
Gert jan
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On the Foundation Routing and Switching there was a question What is a clear
channel?
Anyone met this qeustion and can provide me some explanation?
Thanks,
Gert jan
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