[VoIP] WE 2500 question
Steph Kerman
stfkerman at jps.net
Wed Mar 14 18:48:16 CST 2007
john jones wrote:
> I have quite a bit of experience plugging 500 sets into a 120VAC
> circuit. Makes the gooey,gunky stuff in the network smell REAL bad.
> Gets young kids in trouble with the parents but the phone seems to
> work fine afterwards.
I suspect that putting 120VAC into it probably changed the
characteristics of the varistors but the changes in transmission
performance might not have been grossly obvious even if the smell was.
I'd still like to know what that stuff is and what solvent they used to
clean it up in the factory. Ever seen "Gremlins"?
> The first time I did this, I unplugged it when the smoke started. The
> next time, I didn't unplug it until I thought I couldn't breath.
John.... thanks! I understand your case so much better now!
> Ah, to be young and stupid. It sure beats being old and stupid!
Depends on whether ignorance is bliss. Sometimes one can be old and
stupid but have the wisdom to know it, though it can't be taken for granted.
Steph
> --- Steph Kerman <stfkerman at jps.net> wrote:
>
>> You would not ruin the 2500. Zero chance of that.
>> You will have to
>>
>> plug it into the AC line or an unlimited DC current
>> source if that's
>> your goal. You would not damage the CO either.
>>
>> If you want to ruin your IAXy, there are probably
>> many ways.
>> Back-feeding DC from the CO probably *would* do it
>> in. If they gave a
>> damn they could protect it but why bother... you'll
>> buy another one,
>> right? More profitable for them to save 50¢ and
>> make it a vulnerable
>> $50 device. Improves sales.
>>
>> I am not being sarcastic.
>>
>> Steph
>>
>> Jayson Smith wrote:
>>> Hi,
>>> Just another question. If I decide I want to ruin
>>>
>> my 2500, ruin my IAXy and
>>
>>> everything else plugged into it, and possibly
>>>
>> damage something at my central
>>
>>> office, all I have to do is plug the unused part
>>>
>> of this adaptor into my CO
>>
>>> line, right? Just being a bit sarcastic there.
>>> Jayson.
>>>
>>> ----- Original Message -----
>>> From: "Steph Kerman" <stfkerman at jps.net>
>>> To: "Voice Over IP Tandem for Analog Switches"
>>>
>> <voip at ckts.info>
>>
>>> Cc: "Jayson Smith" <ratguy at bellsouth.net>
>>> Sent: Wednesday, March 14, 2007 4:42 PM
>>> Subject: Re: [VoIP] WE 2500 question
>>>
>>>
>>>
>>>
>>>> Fine.
>>>>
>>>> First let's define terms. A plug is a male
>>>>
>> connector attached to the
>>
>>>> end of a cord. A jack is a female connector,
>>>>
>> usually mounted stationary
>>
>>>> mounted to a surface or in a piece of equipment
>>>>
>>>> Standard double plug-ended modular cords
>>>>
>> inherently reverse the polarity
>>
>>>> of the line. This is because they are flat, have
>>>>
>> a ridge along one
>>
>>>> face, and the plugs are installed with the
>>>>
>> latching key on the same side
>>
>>>> as the ridge. This reversal is normally
>>>>
>> compensated by the fact that
>>
>>>> the wall jack and jack in the base of the phone
>>>>
>> are different, with
>>
>>>> oppositely color coded contacts. Because of this
>>>>
>> inherent reversal, if
>>
>>>> you connect a standard flat line cord between 2
>>>>
>> wall jacks or 2
>>
>>>> telephone set base jacks you will find continuity
>>>>
>> between red at one end
>>
>>>> and green at the other, rather than between
>>>>
>> identical colors as you
>>
>>>> probably would expect.
>>>>
>>>> For this reason, if you plug your phone into one
>>>>
>> jack of the "T" and use
>>
>>>> a second line cord to patch the second jack of
>>>>
>> the "T" to the wall, this
>>
>>>> will reverse the polarity fed to the phone. The
>>>>
>> male end of the "T"
>>
>>>> which normally would be inserted in a wall jack
>>>>
>> is unused when using a
>>
>>>> "T" to reverse polarity this way.
>>>>
>>>> Steph
>>>>
>>>> Jayson Smith wrote:
>>>>
>>>>
>>>>> Hi,
>>>>> Yes, we've got lots of those. We usually get
>>>>>
>> them at Radio Shack.
>>
>>>>>
>>>>>
>>> They've
>>>
>>>
>>>>> got them now with two, three, four, or maybe
>>>>>
>> even more jacks. I think I
>>
>>>>>
>>>>>
>>> have
>>>
>>>
>>>>> both the type that is an adaptor block, and also
>>>>>
>> the type that has the
>>
>>>>>
>>>>>
>>> phone
>>>
>>>
>>>>> jacks at the other end of a long phone cord,
>>>>>
>> thus my "extension"
>>
>>>>>
>>>>>
>>> reference.
>>>
>>>
>>>>> Jayson.
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Steph Kerman" <stfkerman at jps.net>
>>>>> To: "Voice Over IP Tandem for Analog Switches"
>>>>>
>> <voip at ckts.info>
>>
>>>>> Cc: "Jayson Smith" <ratguy at bellsouth.net>
>>>>> Sent: Wednesday, March 14, 2007 4:27 PM
>>>>> Subject: Re: [VoIP] WE 2500 question
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> There is a widely available adapter that you
>>>>>>
>> plug into an existing jack
>>
>>>>>> and which has 2 jacks on the back into which 2
>>>>>>
>> devices can be plugged
>>
>>>>>> instead of the single device that could have
>>>>>>
>> been plugged into the
>>
>>>>>> original jack. Most people call it a "T" or
>>>>>>
>> "tee". Do you have one?
>>
>>>>>> "duplex/extension" means anything and nothing
>>>>>>
>> to me.
>>
>>>>>> Steph
>>>>>>
>>>>>> Jayson Smith wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Hi,
>>>>>>> Do you mean, like a duplex/extension/whatever
>>>>>>>
>> you call those? The
>>
>>>>>>>
>>>>>>>
>>> phone
>>>
>>>
>>>>> does
>>>>>
>>>>>
>>>>>
>>>>>>> have a modular jack.
>>>>>>> Jayson.
>>>>>>>
>>>>>>> ----- Original Message -----
>>>>>>> From: "Steph Kerman" <stfkerman at jps.net>
>>>>>>> To: "Jayson Smith" <ratguy at bellsouth.net>;
>>>>>>>
>> "Voice Over IP Tandem for
>>
>>>>>>>
>>>>>>>
>>>>> Analog
>>>>>
>>>>>
>>>>>
>>>>>>> Switches" <voip at ckts.info>
>>>>>>> Sent: Wednesday, March 14, 2007 4:18 PM
>>>>>>> Subject: Re: [VoIP] WE 2500 question
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> Does the phone have a modular plug?
>>>>>>>>
>>>>>>>> Do you have a modular "T" for connecting 2
>>>>>>>>
>> phones to the same jack?
>>
>>>>>>>> Steph
>>>>>>>>
>>>>>>>> Jayson Smith wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> Unfortunately, being blind, I'm not in a
>>>>>>>>>
>> good position to measure
>>
>>>>>>>>>
>>>>>>>>>
>>>>> those
>>>>>
>>>>>
>>>>>
>>>>>>>>> voltages. I just tried several phone cords,
>>>>>>>>>
>> including the one
>>
>>>>>>>>>
>>>>>>>>>
>>> shipped
>>>
>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>> with
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>> the phone, on my unused BPA-410. None
>>>>>>>>>
>> worked. I like the phone, it's
>>
>>>>>>>>>
>>>>>>>>>
>>>>>>> exactly
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>> what I wanted, I just wish it'd work on my
>>>>>>>>>
>> IAXy!
>>
>>
> === message truncated ===
>
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