atcomsystems.ca/forum Forums Other TDM Phone Systems ESI Telephones & Systems 56S with link errors

That's why I ended up putting an extra length of 25-pair cable between the system and the block (using a male/female amphenol cable). See? I'm not crazy after all. The problems on mine were also on short runs. The system was in the basement, and the cables were run under the building, making them all very short runs.

OK, I'll add some more to this thread since the problem appears to be the same or at least similar. I have had a 56s Gen2 in service almost a year now with absolutely no problems. Just last week I added 3 extensions to the system and immediately began having display problems with ext 101. EXT 101 has been in service since the beginning. My first move was to swap the phone but to no avail, problem remains at ext 101 even with different phone. :scratch:

Grider,
If you don't mind, keep us informed where this goes, I have 2- 56s going in next week.

If you ever go back to my posts on the Sprint Protege, I had flaky problems like this with that system, rare and far and few between. FYI, we replaced every piece of equipment, ran shielded cable, and never solved the problem. The equipment we removed was installed at other sites and never had a problem. I used ferrite adapters made custom station cords, etc ,etc.

The end result was "enviormental conditions". The system was replaced with a Norstar,all new wiring, and guess what? We have different flaky problems that are not indictive to a Norstar.

Weird thing is the Sprint Protege worked for 6 years with no problems, go figure.

Walter

It's funny that I only hear about short cable issues on the small ESI systems (actually only the S-Class) whereas we've been having issues with the 600's with long drops. Locations where the legacy system worked and the ESI has issues lighting VM, greeting lights and the like.

ESI appariently found some suspect power supplys and other parts from a particular manufacturer recently that were issues. We've been shipped some "new" phones (all phones will be this type at some point soon) that fix these problems on the long drops. Interesting thing is, I heard a tech say that engineering mentioned that the short drop issue with these "new" phones could get worse!

Making your pigtails and station cables as long as reasonably possible might not be a bad idea, but we've never seen the short cable errors on any of the S-classes we've installed... :shrug:

I think it's S-Class, short cabling (possibly specific to Cat 5 cable runs), and SOMETHING ELSE (maybe) that all contribute to make the short-run problem occur.

Justin

I ran into this problem on 2 56s's with 48 key phones and short runs. One fix was with longer station cable runs.

The real fix is what PhoneSol mentioned. There was a bad run of phones. ESI TS came to my site with some "prototypes" and a new software load and fixed my issue. Have ESI run the S/N of the affected phones and get the latest software.

I know this is late posting, but better late than never.

Interesting. Do you know if that software fix is now in the latest version? Also, any way to tell which rev. phone to look for?

Thanks!

Justin

I ended up owning the particular S-Class system being discussed here. It is operating flawlessly in Portland, Oregon. It is running 4.7.14 software. I also received the telephones that were connected to this system but they have gone elsewhere.

Here's the scoop on the phone situation. The fix is in the phone firmware, not the KSU. We have had problems with phones on long runs where they will not refresh displays and voicemail lamps. These phones have serial numbers starting with 00290 (we call them 290's), we worked with ESI for awhile on this issue and they found issues with these particular phones. We were issued new phones that have serial numbers starting with 00452 (known as 452's!) that solved the problem.

The only other issue we've found is on the 452 phones when they are connected to very short runs, the display will sometimes to blank until they are "rebooted", we replace these with the 290's.

Sorry...5y, I don't. That was earlier this year a 1 reseller ago for me. The s/n's PhoneSol lists are somewhat familiar, but I'm not sure.

The intersting thing for me was that the system workd fine on 3 phones, did some odd things with 4 phones (seldom enough for you to dismiss it), and then went to hell with 5 phones (display garbled, bad call quality, could record messages).