Anologue Phone issues 1

[bombaytelecom]

Hi,

We have just done a big office move and we have installed a lot of new cabling - The new cable is from the Krone frames on each floor to the desks which is now cat5e, the cabling between the krone frame on the floor to the krone frame in our PABX room is still the original cabling installed when the system was installed.

At the moment we are having a few issues with Anologue phones, the phones we currently are using are BT Converse 500's and BT Converse 1300's (the 1300's have displays.

At the moment there is one issue which we are finding with both types of phone where when you dial the extension number it comes up as engaged.

The other issue that we are experiencing with the 1300's is that a few of them will show up as incoming call but don't ring.

We have check the ring volume of the phone, the sockets all have capacitors in them. They are all wired onto the correct pair in both the floor Krone frame and the PABX krone frame.

I am still fairly new to the Meridian PABX systems and i have tried all i can think of.

 

[BodgeTelecom]

You mean BT Converse 220/225s i think. The set type is 500 in OTM.
I don't know much about 1300's, does anyone?

Nice name BTW.
Tim

 

[bombaytelecom]

Yes thats the type i mean thanks Tim, I prefer your name though!

 

[captaingadget]

This must be a wiring issue. I assume the phones plug into the cat5e rj45 outlets. If so I assume you are using some form of adaptor or do the phones have a rj45 or rj11 lead. Analogue phones use the blue/white pair on cat5 cabling, meridian digital phones use the green/white pair.

 

[acewarlock]

In all the systems I have worked on in 27 years, Nortel Digital and analog phones both use the same/1st pr blue/white.

But I do agree there is a wiring Issue, it sounds like split pairs.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[bombaytelecom]

We have found that the first pair which is blue and white is for anologue and the 2nd pair which is orange and white is for digital. This is how all our other phones are wired in the building and they work flawlessly.

 

[acewarlock]

We have found that the first pair which is blue and white is for anologue and the 2nd pair which is orange and white is for digital. This is how all our other phones are wired in the building and they work flawlessly."

It can't be working flawlessly, you did start this post.

Is doesn't make any difference what color the wire is as long as it is punched down on the right pr.

Are you using RJ11's or RJ45's to plug the phone into as they wire differently?

your wiring is the strangest I have ever heard of.

both Digital and Analog phone's us the same pair on the RJ11 so you could swap out either type phone and just change the TN and the phone would work, your way you would have to rewire the jack every time you changed the type of phone.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[Triton101]

If it's a Large system PBX (opt 51,61,81 +) then make sure that they RING GENERATOR is funtioning in the shelf that the TNS are comming from.

 

[bombaytelecom]

The wiring goes from RJ11 (the phone) into an RJ11 Box on the end of a cat5e cable with the orange and blue pairs terminated into the termination blocks in the socket (blue Anologue is in pins 2 &5 and Orange Digital in pins 3 and 4) This is how the rest of the cabling in the building (which we have not touched) is structured. it then goes into the krone frame for the floor where the First pair is anologue blue and the 2nd pair is Digital Orange. There is nothing strange about it, Its how it was done from the get go 15 years ago by British Telecom when they installed our phone system.

 

[JcBWF]

Check the line cord for the analog.....I haven't been at this as long as ACE (almost though) and both the analog and digital have always used 3\4.

Perfection is expected, Excellence is Tolerated

 

[Triton101]

Rj11
2/5 would make sence if it's a 2 line phone, the second line is usualy on 2/5 but the fist line will be on 3/4 on a Rj11.

 

[acewarlock]

Unless your using a Line 1 & Line 2 adapter to split an RJ11 into 2 lines one for Digital and one for Analog.


This is the proper way to install an RJ11

http://www.lanshack.com/wire_phone_jack.aspx

If it is done this way both a Digital and Analog phone would use the same pair which is 4&5. if your jack are wired any other way then it is not standard.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[captaingadget]

Nice one ace, I stand corrected. I've just fished out a similar wiring spec i.e. the EIA/TIA 568B wiring standard and concur with you.

 

[BodgeTelecom]

You are in the US aren't you BombayTelecom? I'm not, but i think there's differences between different countries wiring. And i think most these guys are in the USofA, that's why they assume you live just down the road from them.
Or are you in Bombay?

 

[bombaytelecom]

No im in the UK hence the irony in my name.

 

[acewarlock]

It doesn't make any difference where you are in the world, you can use any color you want, what we are trying to say here is. on Nortel phones they have one pr coming from the phone and they hook up to the same pins on the jack. If your's don't, then your making more work for yourself then you need to.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[resorttech12]

* for Ace because wire is wire, no matter where you go. And it does sound like a wiring issue - be wary of the 568b/568a/usoc differences, especially using patch panels.

If I read the post right (after looking at it a few times), I ran into something similar with basic old school sets on analog tns. Disregard if you have tried this, but thought i'd throw my pennies into the mix:

when i call ext, rang busy. statted as busy. butt set gave me line noise, no dial tone. = shorted, or not fully connected wires at a splice.

 

[bombaytelecom]

Ace, on your krone frame in the PBX how many pairs do you have per location? i.e in our PBX we have 2 pairs per location Floor Box number 1A01 will have 2 pairs the first pair being for Anologue and the 2nd pair being Digital. So in our case it does matter.

Until you have acctaully seen someones wiring first hand and how it has been installed by the vendor then you can't say for sure that our wiring is wrong.

 

[captaingadget]

OK, back to basics, I'm UK based, but whatever wiring system and colour code, you need a pair of wires. For analogue phones the line must appear on the centre two pins on the RG45 jack and also the centre two pins of an RJ11 jack.

 

[acewarlock]

I don't have to see your wiring to know if it's wrong. Did you even look at the wiring diagram I posted for you. Unless your rewiring your station cords so you use a different pair all phones us the same pins in a RJ11 & RJ45.
You have a wiring problem, if everything was workinf fine before the rewiring and move and now they don't. think about it, whats the only thing that is different (Wiring)

http://www.lanshack.com/wire_phone_jack.aspx

This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.