RE: Anyone familiar with the SBC product lingo?

["Dan Lockwood" <dlockwood () shastacoe org>]

I also wanted to pass on the website for our contract.  It is was
negotiated with the state so that all public organizations can take
advantage.  I'm sure some of you are familiar with it:
https://ebiznet.sbc.com/calnetinfo/

Dill down through "Products, Services and Pricing" and then to "Rate
Tables (Rider C)"

Dan 

-----Original Message-----
From: Matthew Crocker [mailto:matthew () crocker com] 
Sent: Thursday, April 14, 2005 2:55 PM
To: Dan Lockwood
Cc: nanog () merit edu
Subject: Re: Anyone familiar with the SBC product lingo?

> SONET Circuit Service OC3-c (155Mbps) $2200 vs. Central Office Node 
> Circuit Service OC3/3c (155Mbps) $675

SONET is a method of transporting TDM channels over fiber.  SONET is
made up of building blocks calls a STS. A STS is equivalent  to a DS-3 
+ SONET Wrapper. An OC-3 equals 3 STSes.  OC-3s come in two types,
'channelized'  OC-3 which is 3 DS-3s in 3 STSes and Packet Over SONET
(POS), concatenated OC-3c which is 155mbps.  If you are planning on
using this circuit for TDM based voice (84 T1s in 3 DS-3 chunks) then
you will want an OC-3 not an OC-3c.  If you are planning on running
155mbps POS IP traffic you want an OC-3c.

OC-3 = 3 x STS-1 = 3 x DS-3 =   3 x 28 DS-1s, 84 DS-1s = 2016 DS0 voice 
channels.
OC-3c = 1 x STS-3 = 155mbps

You can use an Adtran OPTI-3 to break an OC-3 into 3 distinct DS-3
channels which can be plugged into M13 muxes (Carrier Access Widebank
28) which will break a DS-3 into 28 DS-1s.

If you want IP bandwidth you can use an OC-3 POS line card from your
router vendor of choice.

-Matt