Discussion:
Question on phone cord connectors
(too old to reply)
Wim Lewis
2008-10-16 21:26:09 UTC
Permalink
If the connector for the phone line coming from the wall is an RJ-11, what
connector is used for the coiled cord connecting the handset to the
telephone? It seems a little smaller. Any help is appreciated...
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect. (I think the deal is that
it's only officially an RJ-series connector if it's part of the standardized
telephone system, and the handset connectors are completely up to the
whim of the manufacturer, even though there is a de facto standard.)
http://en.wikipedia.org/wiki/Registered_Jack

I added a crosspost to comp.dcom.telecom.tech; maybe someone there knows.
--
Wim Lewis <***@hhhh.org>, Seattle, WA, USA. PGP keyID 27F772C1
"We learn from history that we do not learn from history." -Hegel
Doug McIntyre
2008-10-17 02:57:55 UTC
Permalink
Post by Wim Lewis
If the connector for the phone line coming from the wall is an RJ-11, what
connector is used for the coiled cord connecting the handset to the
telephone? It seems a little smaller. Any help is appreciated...
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect.
The most correct name for the handset connector is a 4p4c modular plug/jack.

Just like a phone line connector is a 6p2c modular jack (or 6p4c sometimes).

And an Ethernet jack is an 8p8c modular jack.

ie. x position, y connector.
Jasen Betts
2008-10-17 09:15:59 UTC
Permalink
Post by Doug McIntyre
Post by Wim Lewis
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect.
The most correct name for the handset connector is a 4p4c modular plug/jack.
Just like a phone line connector is a 6p2c modular jack (or 6p4c sometimes).
And an Ethernet jack is an 8p8c modular jack.
ie. x position, y connector.
I've seen 10way connectors the same width as 8 way ethernet ones ones (the three
I've seen were on bar-code reader cables)

would that be 8P10C or is there a special designation for under-width
connectors?

Bye.
Jasen
Michael A. Terrell
2008-10-17 14:57:06 UTC
Permalink
Post by Jasen Betts
Post by Doug McIntyre
Post by Wim Lewis
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect.
The most correct name for the handset connector is a 4p4c modular plug/jack.
Just like a phone line connector is a 6p2c modular jack (or 6p4c sometimes).
And an Ethernet jack is an 8p8c modular jack.
ie. x position, y connector.
I've seen 10way connectors the same width as 8 way ethernet ones ones (the three
I've seen were on bar-code reader cables)
would that be 8P10C or is there a special designation for under-width
connectors?
No. How can you have eight positions, and ten contacts? A
'position' is a place for one contact.
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Jasen Betts
2008-10-18 07:22:29 UTC
Permalink
Post by Michael A. Terrell
Post by Jasen Betts
Post by Doug McIntyre
Post by Wim Lewis
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect.
The most correct name for the handset connector is a 4p4c modular plug/jack.
Just like a phone line connector is a 6p2c modular jack (or 6p4c sometimes).
And an Ethernet jack is an 8p8c modular jack.
ie. x position, y connector.
I've seen 10way connectors the same width as 8 way ethernet ones ones (the three
I've seen were on bar-code reader cables)
would that be 8P10C or is there a special designation for under-width
connectors?
No. How can you have eight positions, and ten contacts? A
'position' is a place for one contact.
the plug is the same width as that used for twisted pair ethernet, what is
commonly called "RJ45" or 8P8C, but it has 10 contacts.

Loading Image...
vs
Loading Image...



Bye.
Jasen
Michael A. Terrell
2008-10-18 16:17:30 UTC
Permalink
Post by Jasen Betts
Post by Michael A. Terrell
Post by Jasen Betts
Post by Doug McIntyre
Post by Wim Lewis
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect.
The most correct name for the handset connector is a 4p4c modular plug/jack.
Just like a phone line connector is a 6p2c modular jack (or 6p4c sometimes).
And an Ethernet jack is an 8p8c modular jack.
ie. x position, y connector.
I've seen 10way connectors the same width as 8 way ethernet ones ones (the three
I've seen were on bar-code reader cables)
would that be 8P10C or is there a special designation for under-width
connectors?
No. How can you have eight positions, and ten contacts? A
'position' is a place for one contact.
the plug is the same width as that used for twisted pair ethernet, what is
commonly called "RJ45" or 8P8C, but it has 10 contacts.
http://www.l-com.com/product_images/detail/lg_TDR10P10C.jpg
vs
http://www.l-com.com/product_images/detail/lg_TD8P8C.jpg
The width of the housing has nothing to do with the designation. It
could be three feet wide, and still only have ten postions.
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http://improve-usenet.org/index.html

aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.

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There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you're crazy.
Doug McIntyre
2008-10-17 19:08:21 UTC
Permalink
Post by Jasen Betts
Post by Doug McIntyre
Post by Wim Lewis
Wikipedia says that it's commonly referred to as an RJ9, RJ10, or RJ22,
but it also says that those names are incorrect.
The most correct name for the handset connector is a 4p4c modular plug/jack.
Just like a phone line connector is a 6p2c modular jack (or 6p4c sometimes).
And an Ethernet jack is an 8p8c modular jack.
ie. x position, y connector.
I've seen 10way connectors the same width as 8 way ethernet ones ones (the three
I've seen were on bar-code reader cables)
would that be 8P10C or is there a special designation for under-width
connectors?
No, it would be 10p10c modular connectors.

They can be a touch wider than 8p8c jacks as well, but not enough to
account for the "extra" 2 connector pins.
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