Opt. 61C digital line cards - cabling to jack frame 1

[hartburn]

I am perplexed. I am looking to get additional cards for digital TN's on our opt 61C. We have three empty slots in Loop 8, Shelf 0, slots 12, 13 and 14. At the frame there are 6 unused but wired up krone strips which look as if they cable back to the Meridian: these correspond to what sequentially would be cards/slots 12, 13 and 14.

To check if the cabling to the frame was in place for these spare slots, I took the back off cabs 12-0 and 12-1. 12-0 is straightforward, with 16 digi cards installed. I know I have programmed and patched, working phones on every available card in this shelf. In the back of the cab there are 12 cables (6 on each side) going to the frame.

Cab for 12-1 is not as straightforward (has PRI card and tone detectors as well as digi and analogue cards), but has the same 12 cables going back to the frame.

The cabling in the back of the cab for Loop 8 is exactly the same, so I reckoned that the cabling must run to the frame for the 3 empty slots.

My maintainer thinks I am mad and says that if there are 12 cables in the back, then there are 12 cards cabled to the frame. He said that there must be phones programmed on Shelves 12-0 and 12-1 which cannot be cabled to the frame and that this is the case with the empty slots in Loop 8 ie. no point putting in extn cards as they are not cabled to the frame.

But, I know for sure that I have phones wired at the frame, patched to floors and working, on every extension card in 12-0 and 12-1. This, says my maintainer is impossible as it is one cable per card to the frame.

Despite what I can see (12 cables per shelf on 12-1, but with all extn cards actively programmed with working extensions, to back up what he says I cannot swap a card into eg. slot 14 on Loop 8 and programme an extension on it: I get SCH5781 (card number for loop is invalid).

Can anyone help me out with the cards to cables problem? Is it possible to have only 12 cables for 16 cards?

Is it possible to enable a card and programme an extension on a card that is not cabled to the frame?

Is there anything I should do when moving a card into, say 8-14, to enable the card and allow me to programme an extension on say 008-14-00-00? I thought you just had to put the card in and programme an extension.

Apologies for the long winded description!

Any clues will be much appreciated.

 

[SL1M1]

Slightly confused why you have a PRI in an IPE Shelf though one would assume it's just sitting there not pushed home as if operational it would be in your Network shelf/group.

I would also check that all your Amphenol's at the back are connected to each slot, they split into 3 for each slot on the backplane, this will determine if your cabling for your IPE Shelf/s are fully cabled back to your main frame certainly slots 0/4/8/12 should be for say any future implementation for example MICB backplane connectivity

Cheers!!

 

[GHTROUT]

Not sure of your software release, but if its new enough, go to LD117 and try this

==> INV GENERATE CARDS

then wait a short time, then

==> INV PRT CARDS

With that, you will have a card inventory of those shelves you could post or send your maintainer.



GHTROUT.com | FAQs | Recent Replies

 

[StanleySteamer]

I admit I got a bit lost in your explanation but maybe this will help.
Older models of IPE modules (e.g.NT8D37DC)used only 12 cables for 16 cards. Each 25 pr cable served 1 and a half cards.

 

[hartburn]

Thanks for the quick replies. To answer both as best I can...

Sorry - it's a DID card in 12-1, not PRI (rushing today!). The cabling at the back of 12-0 (which has 16 functioning and pretty much fully programmed digi cards has the following cables in the back:

On the Right Side

Cable A --> Plug A
Cable B --> Plug B
Cable D --> Plug C (that's not a typo)
Cable E --> Plug E
Cable F --> Plug F
Cable G --> Plug G

Nothing in Plugs D & H

On the Left Side

Cable K --> Plug K
Cable L --> Plug L
Cable M --> Plug M
Cable R --> Plug R
Cable S --> Plug S
Cable T --> Plug T

Nothing in Plugs N & U

The smaller plugs in each side are also empty.

This arrangement gets all 16 cards on 12-0 out to the frame.

Cabling in 8-0 is:

Cable A --> Plug A
Cable B --> Plug B
Cable C --> Plug C
Cable E --> Plug E
Cable F --> Plug F
Cable G --> Plug G

Nothing in Plugs D & H

The smaller plugs in each side are also empty.

Despite the identical cabling, the switch cannot see a card swapped from 8-0-11 (working) to say, 8-0-14 and I cannot program an extension on 8-0-14.

Here is the card inventory taken before swapping the card from 8-0-11 to 8-0-14 ie. as is currently working:

Card inventory:
1 8 2008 13 22 9, 1 8 2008 13 22 31, 65
CP , 0 15, NT5D10CA 07 NNTMET0735C2
CP , 1 15, NT5D10CA 07 NNTMET0735E8
CNI , 0 12, NT6D65AB 03 NNTMET0B2838
CNI , 1 12, NT6D65AB 03 NNTMET0B2813
CMDU, 0 0, NT6D64BB 05 NNTM1832UEYE
CMDU, 1 0, NT6D64AB 07 NNTM60GB6953
XCT-TDS/MF, 2, <Unavailable>
CONF, 3, <Unavailable>
DPNSS1-DTCS, 4, <Unavailable>
DPNSS1-DTCS, 5, <Unavailable>
PRI2, 6, <Unavailable>
Superloop, 8, NNTM60GBKFYD NT8D04BA 08
Superloop, 8, XPEC2 NNTM60GBHT9D NT8D01BD 12
Superloop, 12, NNTM60GBEX9G NT8D04BA 08
Superloop, 12, XPEC2 NNTM60GBGCEG NT8D01BD 12
Superloop, 12, XPEC2 NNTM60GBHJDK NT8D01BD 12
XCT-TDS/MF, 18, <Unavailable>
CONF, 19, <Unavailable>
PRI2, 20, <Unavailable>
PRI2, 24, <Unavailable>
MSDL, 14, NTBK51AA000
XFEM , 008 0 00, NT5K19AC R02 NNTMET0619A5 200042
DLC , 008 0 01, NT8D02GA 07 NNTMET0ABCC1 :101
DLC , 008 0 02, NT8D02GA 07 NNTMET0ABD0C :101
500 , 008 0 03, NT5K02QC R06 NNTMET039132 200033
500 , 008 0 04, NT5K02QC R06 NNTMET039120 200033
500 , 008 0 05, NT5K02QC R06 NNTMET0390BE 200033
500 , 008 0 06, NT5K02QC R06 NNTMET0390AD 200033
500 , 008 0 07, NT5K02QC R06 NNTMET0390A1 200033
DLC , 008 0 08, NT8D02GA 08 NNTMENC5XX7N 0000
DLC , 008 0 09, NT8D02GA 08 NNTMENC5XXYW 0000
DLC , 008 0 10, NT8D02GA 08 NNTMENC5XXDF 0000
DLC , 008 0 11, NT8D02GA 08 NNTMENC5XW5T 0000
DLC , 012 0 00, NT8D02GA 07 NNTMET0B38B0 :102
DLC , 012 0 01, NT8D02GA 07 NNTMET0B38AF :102
DLC , 012 0 02, NT8D02GA 07 NNTMET0A9A42 :101
DLC , 012 0 03, NT8D02GA 07 NNTMET0ABC7A :101
DLC , 012 0 04, NT8D02GA 07 NNTMET0ABC9A :101
DLC , 012 0 05, NT8D02GA 07 NNTMET0ABD27 :101
DLC , 012 0 06, NT8D02GA 07 NNTMET0AAFF3 :101
DLC , 012 0 07, NT8D02GA 07 NNTMET0ABD07 :101
DLC , 012 0 08, NT8D02GA 07 NNTMET0ABCB9 :101
DLC , 012 0 09, NT8D02GA 07 NNTMET0ABCAF :101
DLC , 012 0 10, NT8D02GA 07 NNTMET0ABC72 :101
DLC , 012 0 11, NT8D02GA 07 NNTMET0ABC7B :101
DLC , 012 0 12, NT8D02GA 07 NNTMET0ABC7E :101
DLC , 012 0 13, NT8D02GA 07 NNTMET0AB50E :101
DLC , 012 0 14, NT8D02GA 07 NNTMET0ABD1A :101
DLC , 012 0 15, NT8D02GA 07 NNTMET03657D :033
XDID , 012 1 00, NT5K17AB R03 NNTM1016X8UM 199903
DLC , 012 1 01, NT8D02GA 07 NNTMET0AB582 :101
DLC , 012 1 02, NT8D02GA 07 NNTMET0ABD1D :101
DLC , 012 1 03, NT8D02GA 07 NNTMET0ABCB4 :101
DLC , 012 1 04, NT8D02GA 07 NNTMET0ABC8C :101
DLC , 012 1 05, NT8D02GA 07 NNTMET0AB57F :101
DLC , 012 1 06, NT8D02GA 07 NNTMET0ABCEF :101
DLC , 012 1 07, NT8D02GA 07 NNTMET0AB583 :101
DLC , 012 1 08, NT8D02GA 07 NNTMET0ABCF2 :101
DLC , 012 1 09, NT8D02GA 07 NNTMET0AB514 :101
DLC , 012 1 10, NT8D02GA 08 NNTMENC4X2YC 0000
XTD , 012 1 11, NT5K48AC R01 NNTMET0B0EA1 20012
500 , 012 1 12, NT5K02QC R06 NNTMET0390EB 200033
500 , 012 1 13, NT5K02QC R06 NNTMET037F36 200033
500 , 012 1 14, NT5K02QC R06 NNTMET0390F6 200033
500 , 012 1 15, NT5K02QC R06 NNTMET0390E5 200033

=>

I hope that makes sense - it makes none to my maintainer, who says that because 12-0 onlly has 6 cables, then I only have 6 cards going to the frame. I know this is not the case as I have phones on all 16 cards in there, jumpered and patched and working out on the floors.

I am really not familiar with the cabling to Meridians so I hope what I have posted makes sense.

Thanks again

 

[hawks]

The vintage NT8D37AA and DC IPE Module did only use 12 cables. Only 4 slots used the full cable and the others shared. It was not until the NT8D37BA and EC they used 1 cable per card for a total of 16 per shelf. So depending on the shelf you have yes you could only be using 12 cables for all 16 slots.

 

[hartburn]

StanleySteamer - I know, sorry about the explanation, but I think you might have hit the nail on the head. I'll pass that on to my maintainer.

But do you know why, after swapping a card from a known cabled slot in 8-0, to an empty one eg. 8-0-14, the switch still won't let me program an extension on the new slot/card number and the card inventory doesn't see it in the new slot?

Thanks

 

[hawks]

You may have slots left but do you have TN's left in the software? If you don't then you can not add any new phones no matter how many slots you have. Go to LD 22 and prt SLT.

 

[hartburn]

Hawks - SLT shows 38 digi licences remaining and we have 12 TN's on existing cards. That's why this all came up. I am looking to fill up these final 3 slots with digi cards and get a few more licences. I hope we don't need too many more analogues!


REQ slt

TNS 32767 LEFT 32067 USED 700
ACDN 24000 LEFT 24000 USED 0
AST 4000 LEFT 4000 USED 0
LTID 0 LEFT 0 USED 0
DCH 256 LEFT 254 USED 2
AML 16 LEFT 16 USED 0
RAN CON 0 LEFT 0 USED 0
RAN RTE 512 LEFT 512 USED 0
MUS CON 0 LEFT 0 USED 0
ACD AGENTS 0 LEFT 0 USED 0
ANALOGUE TELEPHONES 112 LEFT 9 USED 103
BRI DSL 10000 LEFT 10000 USED 0
DIGITAL TELEPHONES 528 LEFT 38 USED 490
INTERNET TELEPHONES 0 LEFT 0 USED 0
WIRELESS TELEPHONES 0 LEFT 0 USED 0
ITG ISDN TRUNKS 0 LEFT 0 USED 0

Your help is very much appreciated. I'm off on leave soon, so my posts might stop but I will try to keep an eye on things if I can.

 

[hawks]

Instead of 008-14-00-00 try 8-0-14-0, that could have been why you got the SCH error. Because the way you had it would have been Loop 8 Shelf 14 Card 0 Unit 0.

 

[StanleySteamer]

Since those older IPE's are not just one cable per card then you will have to be careful you are testing the correct pair.
Example - TN 8-0-11-0 may appear on the first pair of a cable, but 8-0-14-0 could be on pair 17 or pair 9.

It really depends how the ribbon cables from the backplane of the IPE are distributed to the amphenols at the I/O panel. I'm not sure what the "factory" setup was.
The installation NTP may give you a clue.
I've never worked with Krone before but it should have been designated when the IPE was installed.

 

[hartburn]

Yeah Hawks, that was a typo on my part (not helpful!) - it was always 8-0-14-0. My maintainer has eaten a wee bit of humble pie over the cabling and is now confident that we can get those spare slots up and running.

The problem with not seeing a card in a new slot(according to him) was that the Superloop was only configured up to 8-0-11. Once he had reconfigured it, he said he could see a card when I swapped one in there.

I do not intend to do any more now as I am just about to walk out of the door for two weeks holiday - not a good time to start messing!

I can go away happy that I can get those new TN's on my return )

I will come back with the final results to let folks know how I get on and hopefully put this to bed.

Thanks to all for the fast and useful responses. Amazing support!