Problems Installing T1 Trunk

[dclake]

Good Day Everyone,

I was wondering if you could offer me some assistance. I am trying to configure a partial T1 trunk on a CM:

The Trunk is a PRI with 10 Channels and Uses a DMS100 Protocol.

I have configured the ds1 with line codding: b8zs and framing mode esf, signalling mode: isdn-pri, connect: network, protocol 1,Protocol Version: c,

I have problems where when I check the status of the trunk it is our of service. When I check the board the physical connection is up but get test No. 140, 143, 144, 145 FAIL.

Any ideas of what can cause this or how to fix?

Thanks

 

[BigPhoneDaddy]

Which Channel is the D Channel on? What do you get when reset it and test it?

 

[dclake]

The D-Channel is on channel 24 as per intruction from provider. If I reset it nothing changes.

 

[bleebrant]

When you status your Signaling Group, is it in service?

 

[dclake]

I have not tried this. What should I be seeing?

 

[bleebrant]

You should be seeing the Primary D-channel/Group state as in-service. Run the command status signaling-group x, x being the signaling group number assigned to the trunk group (and where the D channel is assigned)

 

[4merAvaya]

DMS 100 should use Protocol 'D'. Protocol 'C' is used by the DMS 250.

Kevin

 

[wmainc]

You need to fix the problems with the tests failing first.
Red Alarm Inquiry Test (#140)
Minor Alarm Inquiry Test (#143)
Slip Alarm Inquiry Test (#144)
Misframe Alarm Inquiry Test (#145)

You're just going to be spinning your wheels until you have a good circuit.

 

[dclake]

wmainc do you have any suggestions for fixing these error?

 

[Mitch672]

your physical circuit isn't working. You might need a T1 crossover cable (cross pairs 1&2 with 4&5, and 4&5 with 1&2), or your providers circuit has issues. When the circuit is wired correctly, there should be no red light on the T1 card.

Mitch

AVAYA Certified Expert

 

[dclake]

Hi Mitch672, I never get the red light on the T1 card. Its just the errors I stated before and trunk is out of service.

 

[Mitch672]

I still think your physical circuit is not wired correctly, or there are local loop issues with the drop.
The channels will never come up, until the signalling channel comes up first. If this is an MM710 card on a media gateway, was does "show csu status vx" shows, where "x" is the slot #? If not, what are the lights on the front of the TN circuit pack showing? are you using a 120A CSU on the rear of the DS1 circuit pack, if its a TN pack?


Mitch

AVAYA Certified Expert

 

[dclake]

Hi mitch I am not using and integrated CSU would it still matter?

 

[Mitch672]

The lights on the T1 card do not work without a 120A CSU plugged in, that's what runs the lights.
So you probably do have a RED alarm light, you just can't see it.
what pairs are you punched to, should be pairs 22 & 23 (violet/orange and violet/green):

http://www7.taosnet.com/ebear/colorcodes.html

Mitch

AVAYA Certified Expert

 

[dclake]

Hi all when I run status Signalling group I am getting a fail on test #647.

 

[dclake]

I forgot to add I no longer have the failures when I test the board. and the fail code on the status Signaling X is 1.