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polarity
- Thread starter krasemir
- Start date
Johnthephoneguy
Technical User
Just keep your blue white straight on your cross connects and you will be fine. (if your house cabling was done correctly anyway)
JohnThePhoneGuy
"If I can't fix it, it's not broke!
JohnThePhoneGuy
"If I can't fix it, it's not broke!
- Thread starter
- #4
Johnthephoneguy
Technical User
It is a manufacturer design. Keeping the phones with a set polarity means the wiring in each system is the same in theory. SO you can go to any MDF, punch down your cross connect the same way each time and the phones will work the same way. You don't have to "guess" if it is white/blue or blue/white.
Thats the best reason i can think of anyway.
JohnThePhoneGuy
"If I can't fix it, it's not broke!
Thats the best reason i can think of anyway.
JohnThePhoneGuy
"If I can't fix it, it's not broke!
I think the benefit can be described as "If the polarity is right, the telephone will work"
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[small] [©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators [/small]
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[small] [©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators [/small]
But...to your point, I think it's a poor design that the phones are polarity sensitive.
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[small] [©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators [/small]
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[small] [©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators [/small]
- Thread starter
- #8
tnphoneman
Vendor
I have heard people say that before but everyone that I have run into is polarity sensitive. I have been doing at least 1 large installation per month for the last 15 years and I always end up rolling a jumper to get a phone to work.
I don't think this is a poor design. If the phone does not work when you run your cross connect then the color code was not followed in the cabling. How can that be a poor design? I would call it poor workmanship on the part of the cabling.
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Aastra Authorized Reseller
I don't think this is a poor design. If the phone does not work when you run your cross connect then the color code was not followed in the cabling. How can that be a poor design? I would call it poor workmanship on the part of the cabling.
Signature===========================================
Aastra Authorized Reseller
Poor design is when something does not work for a trivial reason. Touch Tone phones used to be polarity sensitive too, but a design improvement was made and now it does not matter.
There are lots of reasons to maintain good cabling, but I wouldn't give any credit to an engineer that said "Let's make the phones polarity sensitive so there are more reasons why our phones might not work"
~~~
[small] [©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators [/small]
There are lots of reasons to maintain good cabling, but I wouldn't give any credit to an engineer that said "Let's make the phones polarity sensitive so there are more reasons why our phones might not work"
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[small] [©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators [/small]
Comparing a car battery and digital telephones is comparing apples and oranges. How can the manufacturer of the Norstar and BCM make those phones not be polarity sensitive and the same manufacturer make the Meridian 1 phones polarity sensitive?
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