new MJ has reversed polarity
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Popgory
- MagicJack Contributor
- Posts: 61
- Joined: Sat Apr 04, 2009 1:03 pm
- Location: Chicago, metro NW
new MJ has reversed polarity
Hi All,
Went live with mJ in early April. Usual learning curve, now have good service 95% of the time.
Today, out of the blue, I put a Line Tester in the RJ-11 on the mJ device. Low and behold, it came up RED - reversed polarity. I know the tester is good as I had the lineman check it against his equipment many years ago.
I am requesting the other members of the forum with line testers to check their mJs and post. Mine is 45 days old. I am wondering if anybody else has a mJ that comes up as reversed polarity?
Thanks in advance for your help and posts.
Went live with mJ in early April. Usual learning curve, now have good service 95% of the time.
Today, out of the blue, I put a Line Tester in the RJ-11 on the mJ device. Low and behold, it came up RED - reversed polarity. I know the tester is good as I had the lineman check it against his equipment many years ago.
I am requesting the other members of the forum with line testers to check their mJs and post. Mine is 45 days old. I am wondering if anybody else has a mJ that comes up as reversed polarity?
Thanks in advance for your help and posts.
Popgory
Wyse 9450xe TC, 1Gf/1Gr; XPe sp2, powered hub
Linksys BEFSX41, Hawking HBB1, Spedstrm 5100b
ADSL 5200 down / 650 up
Wyse 9450xe TC, 1Gf/1Gr; XPe sp2, powered hub
Linksys BEFSX41, Hawking HBB1, Spedstrm 5100b
ADSL 5200 down / 650 up
rofl, where did you get that information? I have never worried about polarity on any wall jacks I have ever installed and not once have I ever had a phone not produce DTMF tones. Somehow I really don't think I just happened to get the polarity "right" on all of them.Matt9876 wrote:If it is truly backwards most phones will not produce touch tones on a reverse line.
Telephone Line Polarity
When ringing a telephone line uses AC and is thus not polarity sensitive. When talking or not in use the telephone line is DC and the tip or green wire is positive. The Ring or red wire is negative.
This used to be important in older phones and they would not perform an out going touchtone call if the polarity was reversed even though they could answer and incoming one.
Most modern phones have a circuit which corrects the polarity inside the phone if it is wired incorrectly; so the newer phones will work even when wired wrong.
This used to be important in older phones and they would not perform an out going touchtone call if the polarity was reversed even though they could answer and incoming one.
Most modern phones have a circuit which corrects the polarity inside the phone if it is wired incorrectly; so the newer phones will work even when wired wrong.
Sad Times Ahead for this Obamanation !!!! Psalms 109:8
I did the same thing but then ran the MJ input/output channels through a reverse mixer to correct the funny voices.mufon wrote:I just plugged mine into the usb port upside-down, problem solved. Funny thing, however is that people's voices sound just like a record being played backwards.
Now MJ pays ME $19.95 a year....
I discovered the same thing awhile ago when heating up the house phone wiring with MJ. I was obsessed about keeping the polarity right just for the fun of it. I noticed that my MJ was reversed polarity at its output jack. Not a problem really because ALL of those short modular phone jumper cables, the flat silver ones, are all wired as REVERSERS. So coming off of the MJ with a flat silver modular cable to plug it into the properly wired house wiring reversed the reversed MJ and made it true. Yay. But then there were all those darned silver reversing modular jumpers coming off of the telco jacks leading to the actual phone units that caused it to all reverse again! WHY DO THEY DO THAT? I have yet to grok the zen behind making all modular jumpers reverse. There must be something like a rule that says "wire your house wiring backwards because all the modular jumpers will reverse it back true" ha right. I just got out the bag of RJ11 connectors and the crimper and fixed some modular cords. In the end none of it made any difference probably 
