Installed ACS 7.0 and 5 18D phones. Customer has 3 lines. On extensions 14, 17 & 18 you can be using line 1 while in conversation with a caller. During that time if a call comes in on line 2 it creates a disrupting static ring cadence into the ear piece while your talking. What I mean by static ring cadence is that during the transmission of incoming ring there is choppy static that overrides the current sound transmission. It acts like defective call waiting.

Anyone ever experience this scenario?

does the same problem occur if set is plugged in at system? If not is there old 25pr. cable from MDF feeding those ext. thru IDF? or via 6 port harmonic adapter?

Problem exists both from house wiring and direct connection to processor. It acts as if the processor does not recognize the extension to be off hook.

only happen with line one ?

are all line ports used ?

what if you drop everything down one port to troubleshoot ?

leave one blank , one becomes two ...etc

Every time we have had this problem, it was either the processor, 206 or 308. If you only have a 509 processor, I'd be willing to bet a Rolling Rock that it's the processor!(DUH, no kidding.) Usually it's the cicuit pack that has the offending c.o.'s. (Yeah, yeah, I know cheap beer, not much of a bet, but I happen to like RR, and I expect to win!) John C.

I am with John C.

Yup, seen it before. Bad mod.

-Hal

Mod comes out tomorrow, new one goes in. Troubleshooting can take place some where else. :db:

Update

Replaced 5x9 processor with 3x8 processor. I thought problem would be resolved. I was wrong.

It is things like this that drive a person crazy. I always verify my own connections first before I serve the ball into another court. I conducted the following test before calling in the provider for troubleshooting.

Direct connection of line 1 to processor from Dmark.

Direct connection of line 2 to processor from Dmark.

All sets removed from processor.

Connected 18D to EXT 14 port and made test call. Problem still exists!

I'm scratching the noggin! :scratch:

What if you are trying two lines plugged in into two butt sets or two single line telephones without comming into 3 x 8 ACS? Its might be Lines 1&2 have a crosstalk problems. Another thing. Sometimes after punch down there is short between pins on 66 block between pins for R of line 1 and T for line 2. Not a complete short but litle touch.

do you have any type of lightning protection in place ?

if so you need to bypass it


like VAD suggests , two SL sets right at the demark is where you need to start

(Ive also seen this problem on rel 6(3x8)could be two bad processors so try bypassing 1 on the processor and plug line one into two on processor and line two into three )

Skip & Vad

I will try your suggestions and follow up later today. Thanks for the input.

OK, the results are in. Sparky did it!

I felt the need to find out exactly where this problem was and what needed to be done in order to fix it. I put my glasses on and studied each connection one by one stating at the Dmark with line 1 that connects to 66 block jumpered to line 1 port of the ACS then I check line 2 and so on including extensions. All were fine but still a problem. I disconnected the entire system and even turned it off, connected buttset to line one at Dmark and an SLT to line 2, used cell phone to call line 2 while listening in on line 1 (buttset). Clean as a whistle. Darn, it is within system connections somewhere. Next step was to reconnect lines 1 & 2 and Ext 10. Went to Ext 10 and made a call using line 1 then used cell phone to dial line 2 and no problem. Followed suite by adding Ext 11..No problem.
Ext 12..No Problem
Ext 13..No Problem
Ext 14..Bingo, we have a problem.

To make a long story short (short is key word) I found that the problem existed on every extension either in place or directly connected to the processor port as long as Ext 14 was connected to its wall jack location even if you put a different telephone at Ext 14. I took Ext 14's wall jack apart and verified it to be properly wired. I then disconnected Ext 14 from the ACS and plugged in my banjo at Ext 14 wall plate, flipped switch to continuity. We have continuity between 3/4 and 3/5 which means the cable has been damaged somewhere along the run.

The cable installs were the job scope of the EC, all I had responsibility on this project for was terminations and system install. :read:

I went and got a foot of cable off the truck to use as a prop while explaining this to customer. When I departed the customer was going to come to a decision as what to do. We might try using green pair and brown pair for Ext 14 but as for now I'm done.

Thanks for the help everyone! :db:

Good you got it figured out , John

stuff like that is what keeps it interesting :rolleyes:

(glad it turned out to be something you can bill for )

John C., I just noticed something. If we ever get together your buying me a Rolling Rock. :rofl:

Ah, but it WILL be worth it for the bit of info! Just wish all the 'helpees' would tell us what we told 'em that apparently fixed their problem instead of just going silent! I guess it has something to do with courtesy training when they were young! CHEERS, John. Hmmm, Jacksonville, where in the state of FL is it? F'ville is 50 miles north of the NC south border on I-95. John C.

John C. Thanks for the beer and the assistance efforts. I agree there are many posts that start with a question followed up with inputs from numerous knowledgeable field techs. I personally try to come back to a post I have started and post some sort of final results. That makes the thread more valuable for members using the "search" function.

Jacksonville is located on the east coast side of Florida just barely south of the Georgia state line. We are conveniently located at the intersection of I-95 & I-10.