Talk:Registered jack

message: I think there should be a section explaining how jacks are inserting into various types of telecommunication equipment like Keystone wall plates and surface mount boxes. In a professional job, you would not terminate a cable to a jack without securing it to something. Chewbaggins (talk) 26 May 2009  —Preceding undated comment added 21:16, 26 May 2009 (UTC)
thread_title:  Wall Plates and Surface Mount Boxes 

message: DB:  FCC CFR47 Part 68.502.  CFR is Code of Federal Regulations
I checked the GPO Access site, and there is no 47CFR68.502; at least, not in the latest revisions.  Why is this citation still here? Nulbyte 01:55, 5 May 2006 (UTC)
replies: text: The authority was transferred to a private organization in 2001 and section 502 repealed..  I added that information in June, but forgot to remove the reference to 47CFG68.502.  I've done that now.  -- Bryan Henderson 21:34, 30 July 2006 (UTC)
replies: text: Given that the current private standards seem to have nasty redistribution conditions attatched we imo should if possible link to the original pre-delegation standards as well (US fedral standards are PD aren't they?) Plugwash 17:28, 27 September 2006 (UTC)
thread_title:  Where is 47CFR68.502? 

message: DB:  Now that IS a problem.  You absolutely cannot use a RJ12 for a 6P6C.  RJ12 is not hardware, it is a wiring plan, and the 6P6C miniature modular jack, obviously, IS hardware.  You must use the 6 "position" mini-modular jack for RJ14C/W.  It's plan uses only pins 2 through 5, so you can use either a 6P4C or a 6P6C... that part is a "who cares?"
Is this another example of the kind of misuse we have seen with RJ45? Lego (with reference to the mindstorms nxt) and microchip (with reference to the icd2) both seem to use it. What other uses does a 6P6C connector have and do its users also reffer to it as a RJ12? (i'm not discussing right or wrong here, just actual use) Plugwash 00:25, 11 September 2006 (UTC)
thread_title:  RJ12 often used for 6P6C 

message: http://en.wikipedia.org/wiki/Twisted_pair discusses shielding and 
screening in a cable and mentions that it is ineffective unless a 
shield or screen is grounded.  This is probably achieved through the 
jack, but how?  All the jacks in this article are plastic with no 
mention of a ground.Regards,       ... PeterEasthope (talk) 05:04, 2 February 2008 (UTC)
replies: text: There is a variant of the 8P8C "RJ45" connector with contacts on the sides for the screen used for shielded twisted pair ethernet wiring (most cards/hubs/switches have the contacts for a shield but shielded wiring is rarely used in practice). I don't know if and where this is standardised and whether similar things exist for other sizes. Plugwash (talk) 15:21, 2 February 2008 (UTC)

text: You can find pictures of shielded and unshielded plugs for cat5e and cat6 (both for stranded and solid cables, but I have no idea of the differences between them) in  (I hope this is not considered spam) Fernando Gutierrez (talk) 20:37, 21 July 2009 (UTC)
thread_title: Grounding

message: There is no "Middle two", methinks.
What's a better way to say this?
216.79.193.84 (talk) 15:35, 13 November 2008 (UTC)
thread_title:  "The middle two can be plugged into the same standard six-pin jack, pictured" 

message: The article is headed "Registered jack" (which makes sense according to it's definition) but contains frequent references to "Registration jack", which makes no sense to me.  Is this just sloppiness/typos or is there some rationale to it?  —Preceding unsigned comment added by 62.49.27.35 (talk) 13:48, 7 April 2009 (UTC)
replies: text: Seems to be bad editing. It first appeared in revision 245804589 I've corrected these. Tothwolf (talk) 01:21, 8 April 2009 (UTC)
thread_title:  Registered or Registration 

message: "True RJ45" redirects to this article, but this article does nothing to define "true RJ45".  Much of this article is a listing of what registered jacks are not.  "True RJ45" is mentioned but never defined and all RJ45 links in this article point back to the 8P8C page which says "the true RJ45 uses a different 8P modular connector type".  If RJ45 doesn't use 8P8C, then RJ45 shouldn't be used to link to the 8P8C page.  Can anyone provide any information regarding the actual RJ45 specs?  What's the physical jack type?  What's the wiring pattern?  —Preceding unsigned comment added by 76.26.210.156 (talk) 15:03, 13 July 2009 (UTC)
replies: text: It is currently quite a mess, see Talk:Modular connector#Merger proposal. --Tothwolf (talk) 15:23, 13 July 2009 (UTC)
thread_title:  Where's the actual info? 

message: These pages seem to be an attempt to correct the "RJ" vs incorrectly applied usages of the RJ terms; Therefore
 
note the passage that says "RJ21 connectors are used to connect Ethernet ports in bulk from a switch with RJ21 ports to a CAT-5 rated patch panel, or between two patch panels. A cable with an RJ21 connector on one end can support 12 8P8C "RJ45" connectors or Ethernet ports on a patch panel."
In this case shouldn't it refer to the connector (genearally called an "Amphenol" connector) not RJ21
Amphenol 25-pair/50-position "Micro Ribbon" or CHAMP see http://en.wikipedia.org/wiki/Micro_ribbon or (http://www.amphenolcanada.com/ProductSearch/pdf/MICRORIBBON_CAT.pdf) (the 36 position often called the centronics Parallel connector - which also actual refers to how its wired and not the connecor's actual name)  —Preceding unsigned comment added by 216.99.201.90 (talk) 21:15, 8 December 2010 (UTC)
thread_title:  Notes on RJ21 

message: "Uniform" or "Universal" Service Order Code - the snippet view of US CFR shows "Universal", but "Uniform" is popular among many cable books. Or did it change? --Wtshymanski (talk) 16:54, 31 August 2011 (UTC)
thread_title: USOC - u?

message: Can I Request a picture of the RJ45S Keyed Jack be added to the article? Never seen one, and keep on getting pointed to 8P8C "RJ45" Connectors. Would a comparison picture help illustrate the difference, or do they look the same on physical inspection? 80.46.254.196 (talk) 15:35, 13 February 2012 (UTC)
thread_title: RJ45S Picture

message: Just discovered that the Wii controller for Guitar Hero had an RJ14 port, intended to support peripherals, but nothing was ever released.[www.ehow.com/about_6631099_purpose-guitar-hero-x_plorer-controllers.html] It would be nice if this info could be somehow included in the article. --Auric  talk 19:37, 20 September 2013 (UTC)
replies: text: No. This has nothing to do with an RJ interface. This would be a use of a modular connector for something completely unrelated to registered jacks. Kbrose (talk) 16:25, 11 December 2014 (UTC)
thread_title:  RJ14 port 

message: Link to Italian page https://it.wikipedia.org/wiki/RJ-45 is missing.  I've tried to add it, but I get an error.  At the same time I see that the corresponding Italian pages in all other languages, i.e. https://fr.wikipedia.org/wiki/RJ45, are missing the link to this English page.  How to solve it? I don't know how.  --Oriettaxx (talk) 07:55, 8 January 2015 (UTC)
thread_title:  Italian link 

message: Could someone add the info at http://pinouts.ru/NetworkCables/ethernet_10_100_1000_pinout.shtml in terms of what all the RJ-45 wires' uses are?
It's been so long, and, this article doesn't even state what all the 8 wires do, in terms of receive data, transmit data, and bidirectional.
Thanks.  — Preceding unsigned comment added by 5.2.200.233 (talk) 18:46, 14 November 2016 (UTC)
thread_title:  For the love of God 

message: This page says the RJ standards DO define the physical dimensions:
https://en.wikipedia.org/wiki/Registered_jack
This page says the RJ standards don’t define the physical dimensions:
https://en.wikipedia.org/wiki/Modular_connector
I have no horse in this race, but as a casual user who just stopped by, I saw the contradiction and figured I'd mention it to someone who knows better.
40.135.213.18 (talk) 15:15, 11 May 2017 (UTC)
thread_title:  Contradiction About Physical Size 

message: I am seeing RJ connectors named both with and without a hyphen (e.g. RJ45 vs. RJ-45). I notice that this Wikipedia article omits the hyphen while all of the parallel articles in other languages (at least the ones I've checked) use the hyphen.
Is there a right and a wrong here?
YossiD (talk) 08:22, 8 August 2019 (UTC)
replies: text: Right. Given that many if not most usages of RJ-type connectors today is 'wrong', i.e., not based in law—ever heard of an RJ-9?—we can only hope to start with those usages that are definitively not wrong, namely the original specifications in the BSPs, the USOC, and in law, CFR part 68. That is where this article should start in any event, and the effort here to present the origins correctly seems to establish this as consensus. Kbrose (talk) 18:02, 16 August 2019 (UTC)
thread_title:  Naming conventions 

message: RJ.5  registered Jack or not?  — Preceding unsigned comment added by 46.47.203.165 (talk) 13:43, 21 January 2020 (UTC)
thread_title:  What about RJ point 5  (RJ.5)