T1 WIC card strange behaviour

[thisistim]

Hello,

I have the following:

A new T1 circuit with 200 m extension cable from the Dmarc.

When I use a 2621XM router & WIC-1DSU-T1-V2 card:

CD LED is green

AL LED is yellow

Serial interface is down/down

When I use a 2620 Router & WIC-1DSU-T1 card:

CD LED is green

Serial Interface is up/up

The IOS config is identical.

See attachement for details.

Any ideas what could be wrong?

I don't observer any errors on the 2621XM router and the WIC card passes diagnotics.

See attachement for visual aid.

Thanks in advance for any pointers.

[kbehymerisg]

I've had weird issues with the V2 cards as well. Here is what I usually try:

-Reterminate the T1 cable with only the two pairs, i.e. 1,2 and 4,5.

-Try a newer IOS

-run "sh diag", if the WIC is a older than v1.2 consider RMA'ing the WIC

Good luck

[thisisshanky]

The wic1dsut1v2s are known for demarc distance problems. I dont know what revision of wics you have got there, but can you try putting the router directly at the demarc (for test purposes), rather than using the 200m run. I am pretty sure it will work at the demarc.)

A fix available for this were to use only 2 pairs, rather than 4 pairs from the router to the demarc.

[thisistim]

Thanks for the comments.

I forgot to mention that I did also experience the

same results when placing both routers at the Dmarc.

The 2621XM with the T1-V2 card was down/down with

the LEDs are mentioned before.

The location of the building is way out in the

countryside, i.e. a factory in a rural area...

So there may be distance issues before it gets

to the Dmarc.

Here is the sh diag information on the WIC:

WIC Slot 0:

FT1 PMC4351

Hardware Revision : 1.2

PCB Serial Number : FOC093033DW

Part Number : 73-8346-05

Board Revision : A0

RMA Test History : 00

RMA Number : 0-0-0-0

RMA History : 00

Deviation Number : 0-0

Product (FRU) Number : WIC-1DSU-T1-V2

Top Assy. Part Number : 800-22193-03

CLEI Code : IPUIAPRRAA

EEPROM format version 4

EEPROM contents (hex):

0x00: 04 FF 40 00 52 41 01 02 C1 8B 46 4F 43 30 39 33

0x10: 30 33 33 44 57 82 49 20 9A 05 42 41 30 03 00 81

0x20: 00 00 00 00 04 00 80 00 00 00 00 CB 94 57 49 43

0x30: 2D 31 44 53 55 2D 54 31 2D 56 32 20 20 20 20 20

0x40: 20 C0 46 03 20 00 56 B1 03 C6 8A 49 50 55 49 41

0x50: 50 52 52 41 41 FF FF FF FF FF FF FF FF FF FF FF

0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

[thisisshanky]

I have had issues with 800-22193-01 and 02, yours seems to be 03. You could try using a cable with just 2 pairs.

Read this thread that was posted early this year.

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1dd6afe6

[muaida]

i want to ask that i have some wic2ts that are faulty means when i test these wic2t by loopback testing they are showing line protocol down i want to know that is their these wic2t are repaireable if repaireable then plz guid me from where ? plz guide me

Muaida

[thisisshanky]

If they are faulty, you can replace them with Cisco..by a process called RMA. YOu will need to have a valid Smartnet (support contract)

[pciaccio]

The only thing that I could think of is that the V2 card is more sensitive to long T-1 cable distances. Did you input the LBO option for long under the Serice-Module for the Interface??

[thisistim]

I spoke with TAC and they referred a known bug:

CSCsa55375 Bug Details

WIC-1DSU-T1-V2 experiencing high error rates

I think I will try a better IOS version