DID card voltage

[hondacrusher]

What voltage should I be reading coming from a Merlin Magix 800 DID card with DID trunks plugged in.

I'm plugged inline with a "banjo" and read approx. 48-49 V

Line provider says it's my problem. They say I should be supplying power to these circuits. Well according to my fluke voltage meter I am. I also tested the wink by plugging in my test set and going off hook. Any other DID info or help is greatly appreciated. I'm sick and tired of the finger pointing that has been going on.

 

[ttech]

On the 800DID card, You usually have to reverse the tip and ring when you punch it down on the telco block. Their switch won't recognize the voltage if it is reversed.

 

[cvrbob]

to test just go across the co pair , dial your DID , call should go to whom you dial, as tech said you may have to reverse your pair

 

[dagwoodsystems]

The 48v you are reading is good. And everything about testing with the winking and pair reversal is also correct.

Let me guess: A couple of the DID members are "going to sleep" and you hit dead air periodically when dialing in. Am I right?

Do a print of your System Setup and post the interdigit timer values here.

If this is a MAGIX, I'd also suggest powering down the switch and pulling out that DID card. You'll notice that for each of the eight ports, there is a little 1" x 1" module of sorts that hovers near the associated port. These chip-like things connect to the motherboard via riser pins and have been prone to work loose with shipping and heat. Avaya later added globs of white silicone to keep these things in place, but I've still run across a couple of them that needed a kick in the pants.

I'd be interested in knowing what's in the error log. DID interdigit timeouts are common with analog DID. Instead, look for anything that suggests hardware faults.

 

[SYQUEST]

Hondacrusher,

You never stated what the problem is with your DID service!

How many trunks?

Dead air? Fast busies? Wrong stations? No DTMF? Wink not recognized? Bad transmission?

....JIM....

 

[hondacrusher]

Thanks for the info everyone. Glad the voltage is where it should be. The DID's didn't work cause the line provider had already given these DID numbers out to other clients.

Dagwood....I didn't know that about the DID cards. Guess it's just something to keep in mind when working on these cards.

 

[dagwoodsystems]

Thank you for the kind remark.

In retrospect, it's obvious that my troubleshooting was premature. It's just that I've had soooo many problems with analog DID that I already had guns drawn when you wrote in.

I had to laugh at myself when you revealed that the provider had simply reassigned the DID numbers! I guess I should have followed the old saw that goes "when you hear hooves, think of horses, not zebras.