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Cable Ami
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Here are some more information for Cable Ami:
Here's the story.....
You ordered a DS3 circuit to replace 20 T-1 lines you have. It is cheaper on the network side and everybody at the local long distance carrier said it will work exactly the same as T-1's. Now you're being told told it will not (big surprise) and it is due to be installed in a few days.
The signaling you need is d4-AMI. The carrier wants to know if it will be either ss7 or PRI. Your equipment is too old for both.
How do you make this work?
You've heard about using a multiplexor or a mux. But how do you know if you are getting the right one and if it will work? Your equipment is based off of the D240sc t-1 rev1 dialogic boards. Plus you also use a 1980's phone system (again...no surprise for many businesses unfortunately). Ultimately, you need to have 28 T-1 lines from the DS3 circuit.
What equipment do you need? How should the carrier set up the DS3 circuit for you?
Okay here we go....
The first thing you need is to get the proper equipment.
Any M13 mux will break out the individual T1 lines from the DS3 circuit. The Adtran MX2800 should be okay but it will need the proper configuration. Unless you have a DC power plant you will want the AC power model. I would suggest you put it on an UPS also. Plus you'll want to get the M13 control card not the STS-1.
You will be using M13 framing on the DS3 circuit not C-bit. The DS3 bandwidth side of the circuit is referred to as the high-speed side. The T1 bandwidth side is referred to as the low-speed side. On the T1 side you will need to physically breakout the T1 lines.
For the MX2800 it appears you will need a couple of accessories. It looks like you will want to get the 64-pin amp cable to the RJ48 patch panel. Your T1 lines will appear on the patch panel in order, DSX-1 channels 1-28.
The T1 lines are individuals and need their framing and coding set for the type of T1 on a particular channel. For instance; channel 1 on the DS3 circuit is an SF/AMI T1 so you set the mux channel 1 for SF/AMI. Channel 2 is ESF/B8ZS so you set channel 2 for ESF/B8ZS, etc.
TL1 commands are pretty basic but can get complicated very quickly. Not all mux's use TL1 but it looks like the MX2800 does. The Manual with the mux should have the commands in it for you to follow for set up..
Basically it's fairly simple. You have a DS3 signal on two coax cables, TX and RX. Those cables will plug in to the DS3 mux. The mux will break out the T1?s respectively to the DSX-1 panel.
In general.....the T1 configuration is separate from the DS3 configuration. You can order a Muxed DS3 and request the T1s be optioned as ESF/B8ZS or D4/AMI.
The company you order the circuit from should be able to configure the T1s either way.
DPC is short for Destination Point Code. It identifies your switch from other SS7 switches and is used to route calls to you as well as establish SS7 service to your switch.
One very simplistic way to think of SS7 is as if you were looking right at a person, face to face.
You see the person (T1 circuit) and you can talk to the person (SS7). If SS7 goes down you can still see each other, but you can't communicate with each other.
In most cases ISDN service or even standard T1E&M is the way to go, unless you are running a Central Office type switch (Lucent 5E or Nortel DMS-100).
If the provider can give you ISDN (PRI) service and your equipment has the capability to work with ISDN service, that would be the way to go only if your equipment can handle ESF/B8ZS circuits.
Afterall this is a DS3 not a bunch of T1 lines. Remember, your T1 orders are ordered to arrive to you on the DS3. When you order a T1, it's CFA (carrier facility assignment) is ordered on your DS3 and mapped on the DLR (design layout record).
Now you have a plan to follow that makes both technical and business sense. I strongly suggest that if you are ever faced with a similar situation..... that you make use of the free consultant services of someone like DS3-Bandwidth.com to map a solution BEFORE you choose a provider and place your order. This will eliminate most of the frustrations encountered in this scenario.
Michael is the owner of FreedomFire Communications....including DS3-Bandwidth.com and Business-VoIP-Solution.com. Michael also authors Broadband Nation where you're always welcome to drop in and catch up on the latest BroadBand news, tips, insights, and ramblings for the masses.
History of the Data Centre
While the data centre as we know it was perfected during the dot com boom of the late 1990s, data centres actually have their roots in the earliest beginnings of the computer era. Early computer systems, which were huge, room-sized machines, required a lot of space and a controlled environment. The complexity of operating and maintaining these machines also led to the practice of secluding them in dedicated rooms.
Computer security became a consideration during this era. These early computers were incredibly expensive, and many of them were used for military purposes or important civilian business ventures. A dedicated room allowed businesses and organizations to control access to the machine.
Another factor influencing the trend toward separate computer rooms was the need to keep systems cool. Early computer systems used a great deal of power and were prone to overheating. Dedicated rooms could be climate controlled to compensate for the tendency to overheat.
These early computers required a multitude of component-connecting cables, and these cables needed to be organized. This led to the creation of some of the data center standards we know today. Racks were devised to mount equipment, and cable trays were created. Also, floors were elevated to accommodate these early computers.
The Advent of Microcomputers
During the 1980s, the computer industry experienced the boom of the microcomputer era. In the excitement accompanying this boom, computers were installed everywhere, and little thought was given to the specific environmental and operating requirements of the machines.
Organization of information was difficult to achieve, and lost data became a major concern. Information technology teams were developed to maintain and install these early microcomputers, but clearly, the industry needed a solution.
The "Data Center" is Created
Soon the complexity of information technology systems demanded a more controlled environment for IT systems. In the 1990s, client-server networking became an established standard. The servers for these systems began to find a home in the old dedicated computer rooms left from the early computers.
In addition to putting servers in a dedicated room, this time period saw the invention of the hierarchical design. This design came about through the easy accessibility of inexpensive networking equipment and industry standards for network cabling.
The term "data center" first gained popularity during this era. Data centres referenced rooms which were specially designed to house computers and were dedicated to that purpose.
The Internet Data Centre
As the dot com bubble grew, companies began to understand the importance of having an Internet presence. Establishing this presence required that companies have fast and reliable Internet connectivity. They also had to have the capability to operate 24 hours a day in order to deploy new systems.
Soon, these new requirements resulted in the construction of extremely large data facilities. These facilities, called "Internet data centres" were responsible for the operation of computer systems within a company and the deployment of new systems. These large data centres revolutionized technologies and operating practices within the industry.
However, not all companies could afford to operate a huge Internet data centre. The physical space, equipment requirements, and highly-trained staff made these large data centres extremely expensive and sometimes impractical.
Now - Private Data Centres, Improved Standards
Private data centres were born out of this need for an affordable Internet data centre solution. Today's private data centres allow small businesses to have access to the benefits of the large Internet data centres without the expense of upkeep and the sacrifice of valuable physical space.
These days, operating and constructing data centres is a widely-recognized industry. New standards for documentation and system requirements add a high level of consistency to data centre design. Disaster recovery plans and operational availability metrics ensure the reliability of today's data centre systems.
What the Future Holds
The future of data centre design is likely to reflect today's emphasis on green practices. Environmentally responsible computer and networking systems, as well as refined operation practice, are likely to shape the data centres of the future.
About the Author
Managed Hosting provider delivers a "higher level" of managed IT services for deploying and hosting e-business, security, data centre, disaster recovery, and business continuity solutions for the mission-critical applications.
Is PUFFY still popular in U.S.?
Hi! I'm japanese. I sometimes watch American cartoon "Hi Hi Puffy Ami Yumi" on cable TV.
I just wondering, Is Puffy still popular in U.S.?
PUFFY..as in p.diddy or diddy
if thats who ur talkin about then
hell 2 the yes!!!!!!!!!!!!!!!!!
hes an icon a rap icon!
love him <3
and michael jackson <3 r.i.p
Teridian, Synapse Wireless and California Eastern Laboratories Showcase Energy Measurement Design Solution at ...
Intelligent Wireless Control and Energy Monitoring Solution Targeted to Manufacturers of LED Light Fixtures and Solid State Lighting Products
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