atcomsystems.ca/forum Forums TDM Business Telephone Systems Vodavi Telephones & Systems HELP!!! VODAVI STARPLUS STS

I don't think they are wired normally. All the pairs are inverted on one end, that is why it is now working with a standard cable attached to the supplied one.

That's what I suspected Derrick. Otherwise it wouldn't make any sense just adding the EKSU cable to a M/F extension cable. However Ed is a pretty reliable source for this kind of thing.

So are you saying pins 1&26 are 25&50 on the other? I did search the internet trying to find the answer. All the installation manual says is they are 50 pin champ connectors, well I knew that. I know the EKSU cable is straight with no cable loop at either end, so if a M/F extension cable has to have a loop at either end there's the answer. Hope I explained that so everyone knows what the heck I'm talking about.

Bill, don't count upon me too much on this one. I've only spot-checked the orientation of the pairs and pins on the cable itself.

Here's why I think that the cable is a standard M-M 25 pair. Even with a longer cable, the system works. It just doesn't work reliably. It took almost a week before we started to see problems that couldn't be explained. On the other hand, it worked perfectly with the factory cable.

On that note, I'm going to have to say that the jury is out on this one.

Thanks Ed. The thing that's throwing me is the statement that they just added the cable that came with the EKSU to the extension cable they were already using. Not ever having put in an expansion cab I'd have no idea. Could be in a few days Derrick will find out it's still not right. Will wait and see.

I'm with you Bill. I think Dillandra will be back. This explanation isn't correct, but I sometimes think of the bus cable as being like an antenna. Too long or too short and the signal gets messed up.
Perhaps a larger question in all of this is why we are so willing to always try to accommodate the customer and squeeze our stuff into the most difficult of places to service sometimes. Does any other industry do that? Where is Hal when we need him?

Well and Ed point out it's a M-M cable so they couldn't have just added it to the cable they were using without an adapter. So I keep getting a bit more confused all the time. If I had one in front of me I'd sure be doing some checking. Thanks for the info.

I had the exact same problem. We tried to use a longer amphenol and it did not work. I had to reverse the other end of the cable and it works just fine. System has been in over five + years and have never had to go back.

OK I just took one apart and it is wired pin 1 is BL/WHT and pin 26 is WHT/BL on both ends. I always thought is had to do with the clocking speed on the bus and anything longer would throw the clock speed off. At least that is what engineering used to tell us for the DVX +4/Triad 3 and Mach 1/Triad S. So I am not sure if they fixed there problem or it only seemed to be cleared when they tested it and the problem will probably return.

So far so good, I am now finding out that the voice mail NEVER worked the way it was prior, so time will tell...