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Joined: Dec 2005
Posts: 9,166 Likes: 8
Spam Hunter
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Spam Hunter
Joined: Dec 2005
Posts: 9,166 Likes: 8 |
Here are a some terms and couple of factoids.
SF = Super Frame
ESF = Extended Super Frame
AMI = Alternate Mark Inversion
B8ZS = BiPolar with 8 Zero Substitution
PRI = Primary Rate Interface
ISDN = Intergrated Services Digital Network
E&M = Ear & Mouth
A PRI/ISDN T1 is provisioned as ESF/B8ZS. It can contain as many as 23 "B" (voice) channels and 1 "D" (data) channel.
A T1 that that features Loop Start, Ground Start or E&M can support up to 24 channels. If compression is applied on both ends of the circuit, the number of channels can be increased.
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