![]() | The contents of the RJ11, RJ14, RJ25 page were merged into Registered jack on 2010-02-23 and it now redirects there. For the contribution history and old versions of the merged article please see its history. |
![]() | The contents of the RJ11, RJ14, RJ25 page were merged into Modular connector on 2010-10-16. For the contribution history and old versions of the merged article please see its history. |
A British friend of mine refers to RJ-11 as "digital phone cable". I thought it was analogue. Does anyone who knows feel like including either appropriate term in the main article? samwaltz 10:23== kpkkpk, 7 June 2006 (UTC)
We really need to keep RJ11 intact. We just bought a V02 data acquisition system to measure metabolic rates during stress tests. This is pretty state-of-the-art equipment and it uses an RS-232 interface. The best way to drive this from a laptop is to use an RJ11 to RS-232 cable. It won't work with a USB to RS-232 adapter.
Why would anybody use RS-232 on new equipment? jj
It is even worse than the above makes it seem. When serial (RS232) printers dried up and only USB ones were available, I had to add (to a small diagnostic instrument) an ARM processor running Linux just to host a USB driver. Bit like building a whole kitchen to make toast...
I think either all RJxx conectors should be independent articles or merged with modular connector, ZyMOS 18:34, 10 October 2006 (UTC)
What's going on with the 4 RJ-11 wires with a home voice/DSL line? the wire carries audio, video and a small amount of electricity to power certain items such as security cameras.
Looking at the variety of RJ11 and RJ14 telephone cables that I have for connecting from the wall socket to the actual phone, most (but not all!) seem to be wired with the pair wiring reversed from one end to the other: pins 3/4 will be red/green at one end and green/red at the other. I am assuming that ordinary telephone equipment expects this. This is different from "RJ45" network cabling, where "normal cables" are straight-through wired, so I think this bears mention on this page (that standard telephone equipment expects a crossover cable) if I haven't just managed to get mostly bad phone cables over the years (in my experience most equipment seems to work fine either way).
Akantha 05:04, 9 January 2007 (UTC)
The T/R and ± column in the Pinouts (sic) table conflicts with the information at the Tip_and_ring page. The Tip_and_ring page states that the Tip is the negative (ground) side and Ring is the positive (battery) side of a phone circuit. The Pinout table has "T" (for Tip) being positive (+) and "R" (for Ring) being negative (-). Which is correct? —Preceding unsigned comment added by 70.79.84.121 ( talk) 01:51, 20 November 2009 (UTC)
The picture identifying pin 1 of the modular connector is wrong. One arrow points to pin 1 and the other arrow points to pin 6. Both pointers are labeled as "pin 1"... which is physically impossible. —Preceding unsigned comment added by 76.90.211.240 ( talk) 23:37, 27 December 2009 (UTC)
This article really needs a picture of all three in order to distinguish between them. — Hex (❝?!❞) 19:43, 7 September 2008 (UTC)
![]() | The contents of the RJ11, RJ14, RJ25 page were merged into Registered jack on 2010-02-23 and it now redirects there. For the contribution history and old versions of the merged article please see its history. |
![]() | The contents of the RJ11, RJ14, RJ25 page were merged into Modular connector on 2010-10-16. For the contribution history and old versions of the merged article please see its history. |
A British friend of mine refers to RJ-11 as "digital phone cable". I thought it was analogue. Does anyone who knows feel like including either appropriate term in the main article? samwaltz 10:23== kpkkpk, 7 June 2006 (UTC)
We really need to keep RJ11 intact. We just bought a V02 data acquisition system to measure metabolic rates during stress tests. This is pretty state-of-the-art equipment and it uses an RS-232 interface. The best way to drive this from a laptop is to use an RJ11 to RS-232 cable. It won't work with a USB to RS-232 adapter.
Why would anybody use RS-232 on new equipment? jj
It is even worse than the above makes it seem. When serial (RS232) printers dried up and only USB ones were available, I had to add (to a small diagnostic instrument) an ARM processor running Linux just to host a USB driver. Bit like building a whole kitchen to make toast...
I think either all RJxx conectors should be independent articles or merged with modular connector, ZyMOS 18:34, 10 October 2006 (UTC)
What's going on with the 4 RJ-11 wires with a home voice/DSL line? the wire carries audio, video and a small amount of electricity to power certain items such as security cameras.
Looking at the variety of RJ11 and RJ14 telephone cables that I have for connecting from the wall socket to the actual phone, most (but not all!) seem to be wired with the pair wiring reversed from one end to the other: pins 3/4 will be red/green at one end and green/red at the other. I am assuming that ordinary telephone equipment expects this. This is different from "RJ45" network cabling, where "normal cables" are straight-through wired, so I think this bears mention on this page (that standard telephone equipment expects a crossover cable) if I haven't just managed to get mostly bad phone cables over the years (in my experience most equipment seems to work fine either way).
Akantha 05:04, 9 January 2007 (UTC)
The T/R and ± column in the Pinouts (sic) table conflicts with the information at the Tip_and_ring page. The Tip_and_ring page states that the Tip is the negative (ground) side and Ring is the positive (battery) side of a phone circuit. The Pinout table has "T" (for Tip) being positive (+) and "R" (for Ring) being negative (-). Which is correct? —Preceding unsigned comment added by 70.79.84.121 ( talk) 01:51, 20 November 2009 (UTC)
The picture identifying pin 1 of the modular connector is wrong. One arrow points to pin 1 and the other arrow points to pin 6. Both pointers are labeled as "pin 1"... which is physically impossible. —Preceding unsigned comment added by 76.90.211.240 ( talk) 23:37, 27 December 2009 (UTC)
This article really needs a picture of all three in order to distinguish between them. — Hex (❝?!❞) 19:43, 7 September 2008 (UTC)