Adding 3rd Cabinet

[mikej97204]

I have a Definity G3siV9 with 2 cabinets. I'm looking at adding a 3rd cabinet, mostly to be able to install some more TN464F T1 cards and a backup MapD card, maybe a analog card and another announcement board.

What I'm trying to find out is what would be needed to add a 3rd cabinet besides the cabinet itself, power supply and interface card and cable? And is it very involved in adding the 3rd cabinet?

Thanks for the information.

Mike

 

[lopes1211]

Not involved at all but you need 4 ei boards and 2 cables. 1 set of ei boards and cable will connect 1 to 3. The other set will connect 2 to 3 to form a ring. If you have high or critical reliability, double the requirements above.

-CL

 

[lopes1211]

sorry, actually just critical reliability would double the requirements. High or standard reliability would just need the 4 boards and 2 cables.

-CL

 

[mikej97204]

Thanks CL. Although upper managaement goes critical if we go down, our PBX is not set up for critical reliability.

I assume by the EI card that you are talking about the TN570C interface card? I looked at the two cabinets I have now and neither one has this card installed.

Do the first two cabinets connect in a different way? Although most of the cable goes under a cover so I can't trace it easily, I would think there would be a cable going from our A cabinet to the B cabinet, but I don't see one. Also, there are cards in the 2 Expansion Interface slots in both cabinets. Will I have to move those when I install the TN570C card? Assuming that that is the card I am going to need.

From what you are saying, if I understand you, two of the cards will go in the 3rd cabinet and one each into the A and B cabinets.

Thanks

Mike

 

[84Mike]

There is a BIG difference between adding a cabinet, and adding a carrier. Which are you doing? Adding a C carrier, or adding another cabinet altogether?

 

[schned99]

Actually, all you need a port network growth cabinet and TDM cable. The reason you don't see a cable between your A & B cabinets is becasue the TDM cable is routed behind the rear face plates on the back of the PBX. You would remove the TDM terminator from the B carrier, move it to the new C carrier, and install the new TDM cable between the B and C carrier. Make sure you properly set the carrier select jumper to the "C" position and be careful when you move the TDM terminator and cable. It is very easy to miss or bend pins on the backplane. If fact, I'd reccomend to have this done by a qualified Business Partner.

 

[lopes1211]

You got it. Yes, 2 cards in cab 3 and 1 card added to each cabinet 1 & 2. 570C is the ei board. If you have station/trunk cards in the ei slots, you will need to move these prior to you cutover.

-CL

 

[lopes1211]

ahh, now I see it looks like he may be referring to an scc carrier/cabinet rather than a port network cabinet. If that's the case, no ei boards or fiber is required. Just the carrier and tdm cable.

-CL

 

[mikej97204]

Mike, what I am doing is adding a physical 3rd cabinet. We are down to only a couple of slots left in the current two cabinets we have.

Schned, I do plan on letting our support vendor do the work, but they haven't gotten back to me with the information yet of what is involved and needed. Right now I'm trying to find out as much as I can on what is needed so I can do some search for equipment and get an idea of cost.

A network growth cabinet is one of the smaller cabinets, isn't it? Something like 8 slots rather than a full cabinet? If so, that would work too since all we need is more slot capability.

Thanks

Mike

 

[mikej97204]

Yes, I was looking at the SCC cabinet, which is what we have. I should have said that, but I keep forgetting that not all of the cabinets of the G3 are the same.

What does the TDM cable connect too? Is that a connector inside the carrier plate?

Mike

 

[supertech2000]

If you are adding a carrier, then you need everything that was stated by schned99, but if you are adding another cabinet, then you need the cabinet, TN570's in each, and fiber cables and interface connectors.

 

[mikeydidit]

It would not be very dificult to do this mikej97204. You are adding another cabinet but really just adding another carrier to your SCC port network. You need to order this as the third cabinet for your setup so the TDM bus cable will be right. Shut the system down, remove the TDM bus terminator and place it in the spot marked on the 3rd carrier (or cabinet). It is outlined to make sure you don't get off on the pins. Their is a slot in the back covers of the cabinets to place your cable in so it doesn't get damaged. Move the little jumper in the back to the position marked "c". It too is outlined. Then bring it back up. In the switch run the command "ch cab ?" and change the c carrier to "port". Then you can add more DS1, station packs or whatever you need.



Mikey

 

[mikej97204]

Thanks Super. And thanks Mikey for the detailed information. I really appreciate all the help.

Mike