Hardware pinouts information and cables schemes

Apple iPod, iPhone (2g, 3g), iPad Dock connector specification users reports and reviews

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There are 46 approved reports in our database

Date Content
User opinion Comment Approved by moderator?
CORRECTCan you give me another model of APPLE iPod dock pinout? Thank you very much!APPROVED
CORRECTConfirmed audio and firewire power. Other pins appear to be correctly listed from what I could see in the dock i disassembled. Also, connecting pin 21 as listed to ground with a 1MOhm resistor does stop the ipod when power (Firewire-12V, havn"t tried USB) is cut. Very handy for turning off your ipod when your car turns off. Also note that this pin diagram has the numbers in reverse order of what will be labeled in a dock connector.APPROVED
INCORRECTSecond sentence states that this connector exists in all iPod MP3 players, it is not in the 1G and 2G (first sentence is correct).APPROVED
INCORRECTIpod 1G and 2G dont have this connector!APPROVED
CORRECTinformation about serial communication is ok. only one little problem. pin 17 is not in our pinout diagram. pin 17 i have connect to ground on my remote control.APPROVED
CORRECTi must apologize, pin 17 is NOT connected to ground! sorry for my eyes mistake :-/APPROVED
2008-10-08 18:02:24rev. 9CORRECTAPPROVED
2009-01-07 03:14:54rev. 13INCORRECTIn pin 27's description, under iphone 3G charging, if you use a 33kOhm and 47kOhm resistor as described you will get 2.94 volts at pin 25, NOT 2.8 as described. If you want 2.8 volts you should use a 33kOhm and a 42kOhm as described.APPROVED
2009-03-11 12:43:46rev. 15CORRECTThe connection is true!!! WORKS!!!!APPROVED
2009-03-27 01:34:00rev. 15CORRECTAPPROVED
2009-06-13 04:01:48rev. 16ERROR FIXEDPin 11 "serial GND" does not provide an actual serial ground - it is not grounded at the device. Serial port should rely on another ground pin (e.g. pin 15 or 1).APPROVED
2009-07-22 14:27:34rev. 17INCORRECTWhere 7 pin?APPROVED
2009-08-19 18:26:33rev. 18CORRECTPin 2 (in the chart) says it's connected to pin 2 when it should say it's connected to pin 1. APPROVED
2009-09-24 08:22:41rev. 18CORRECTLine outs are corerect. But in pin 27, have to use 100k resistor to force the iPod classic 120G to charge in any case.APPROVED
2009-11-09 17:14:13rev. 19CORRECTAPPROVED
2009-11-14 00:07:51rev. 19CORRECTNo errors that I know of, but I have a few questions. Can pin 2 be connected to the GND of the headphone jack safely? How can you fool the iPod into thinking "iPod camera connector" is presont so that it steps up pin 18 to 5V?APPROVED
2009-11-26 20:16:20rev. 19CORRECTiPod 4G grayscale can also be forced to charge by attaching the data + and the data - pins to the 5v via a 10k Ohm resistor ( BOTH PINS) and connecting pin 16 to the 5v (ground). (Confirmed working with iPod 4G 20GB)APPROVED
2010-03-11 08:08:42rev. 24CORRECTAPPROVED
2010-06-11 14:00:52rev. 26ERROR FIXEDNano 5G: connecting the 68kOhm resistor to ground will disable the audio redirection accomplished by connecting pin 11 to ground.APPROVED
2010-09-07 08:56:51rev. 30CORRECTnone that I can findAPPROVED
2010-10-09 22:09:21rev. 30INCORRECT"In pin 27's description, under iphone 3G charging, if you use a 33kOhm and 47kOhm resistor as described you will get 2.94 volts at pin 25, NOT 2.8 as described. If you want 2.8 volts you should use a 33kOhm and a 42kOhm as described." "To charge an iPhone 3G / iPod Touch 2nd gen or Ipod Classic (6th Gen), usb data- (25) should be at 2.8v, usb data+(27) should be at 2.0v. This can be done with a few simple resistors: 33k to +5v (23) and 22k to gnd(16) to obtain 2v and 33k to +5v and 47k to gnd to obtain 2.8v. This is a notification to the iphone that it is connected to the external charger and may drain amps from the usb." The resistor values required to obtain + 2.8 volts on pin 25 and + 2 volts on pin 27 will vary slightly depending on the load of the Apple device connected. Values stated will achieve + 2.8 volts and + 2.0 volts under no load conditions.APPROVED
2011-11-24 14:31:33rev. 43CORRECTAPPROVED
2012-01-05 19:59:39rev. 43ERROR FIXEDThe pin numbers are reversed. The Apple spec lists USB power as pin 8 and Line out L as pin 27, for instance. The manufacturer of the connector also uses the same pinout. Look in the JAE datasheets. Some products like PodGizmo are correct, but others are reversed because they followed your page. Please fix your page.APPROVED
2012-03-07 22:33:57rev. 43CORRECTAPPROVED
2012-04-14 01:17:21rev. 43ERROR FIXEDYour pin numbering is backwards. Lots of people are following your pinouts, but yours are wrong. See the manufacturer's diagram at http://ipl.derpapst.eu/wiki/Dock_Connector#Dock_Connector_Pin_OutAPPROVED
2012-04-22 08:45:41rev. 43CORRECTnaAPPROVED
2012-04-26 00:37:49rev. 43CORRECTAPPROVED
2012-05-11 02:50:02rev. 43CORRECTAPPROVED
2012-06-01 13:25:47rev. 44CORRECTAPPROVED
2012-07-14 01:01:25rev. 44CORRECTAPPROVED
2012-07-23 15:15:48rev. 44CORRECTAPPROVED
2012-07-24 18:50:22rev. 44INCORRECTto charge an iphone 3gs it doesn't work!APPROVED
2012-08-23 09:04:53rev. 44CORRECTAPPROVED
2012-09-13 03:08:28rev. 44CORRECTno problemsAPPROVED
2012-11-18 07:13:14rev. 47CORRECTAPPROVED
2013-01-12 22:35:51rev. 49CORRECTIn the data below the pinout info, there is a dead link to http://ipl.derpapst.eu/wiki/Apple_Accessory_Protocol in the line that starts with "Default line state: high..." That link is dead. Thanks for having this info!APPROVED
2013-03-24 22:24:48rev. 51CORRECTAPPROVED
2013-07-27 09:33:18rev. 52INCORRECTAPPROVED
2013-08-06 01:17:59rev. 52INCORRECTNot the document incorrect, but illustration with ~27 pins! I don't undetstand this...APPROVED
2015-01-23 01:17:35rev. 54CORRECTAPPROVED
2016-07-06 07:09:45rev. 54INCORRECTThe numbering is reversed, as admitted in the description. I mean, come on, why bother numbering from one to thirty if one has to count down from thirty to one on the actual connector that is numbered the opposite of this?APPROVED
2016-12-25 09:47:41rev. 54INCORRECTAPPROVED
2017-06-22 05:38:57rev. 55CORRECTAPPROVED
2019-07-15 13:38:13rev. 55CORRECTAPPROVED

History of users contributions

Date Content
Author Comment
2008-07-09 21:20:15rev. 3
2008-07-09 21:24:51rev. 4
2008-07-09 21:48:14rev. 6
2008-08-04 21:06:24rev. 8Jim Medeirospin 14 and 17 added as reserved
2008-08-21 21:06:08rev. 8
2008-09-25 21:16:20rev. 9R. van Woenseliphone 3g update
2008-10-20 21:40:31rev. 10Robert A LaFont JrUpdated link to Apple Accessory Protocol, was giving a 404 Error before
2008-10-20 22:14:03rev. 11Fred HarmonI am hacking a new Nano 4th Gen to try to make it charge. As you may know, it no longer will charge from 12 volts on the firwire pins. I have found that if I tie pins 25 and 27 together through a 10K ohm resistor while applying +/- 5 volts to pins 23 and 15 (or 16) that it will charge. If you don't tie 25 and 27 together, it won't charge
2008-11-27 22:28:40rev. 12Graham ChatfieldThe 2.0 and 2.8 voltages to charge iPhone 3G were reversed. It still worked before, but the correct method after measuring an Apple usb power cube is 2.0 v to usb data+ (27) and 2.8v to usb data- (25). Added iTouch 2nd gen to that as well.
2008-11-27 22:30:02rev. 12MacZapbroken link to Apple Peripheral Protocol - updated
2009-01-03 22:13:10rev. 13Chris SammisUpdated Apple Accessory Protocol link to ipodlinux wiki
2009-01-24 23:10:21rev. 14Jeropin 30 and pin 29 is pin 2 (mistake was: pin 30 and pin 30 is pin 2)
2009-02-03 17:22:46rev. 15mbarryFixed a couple of grammar mistakes, corrected some mistakes, updated info (1G and 2G iPods do not have a dock connector, rather a Firewire connector)
2009-02-21 13:12:13rev. 15
2009-04-01 18:25:35rev. 15mason brown ( S.R.N.)
2009-04-02 16:58:35rev. 16
2009-06-03 18:51:12rev. 16Siggi
2009-06-21 20:34:24rev. 17Marceladded the 68kOhm accesory indicator
2009-07-22 21:49:45rev. 17Alex
2009-08-15 12:44:43rev. 18Jakob Kongsrud
2009-09-17 07:40:52rev. 18
2009-10-01 19:23:57rev. 18fixed a few spelling errors
2009-10-13 18:15:26rev. 19r00ttesting tng how the authenticity of the information by testing how easy it is to change
2010-01-03 21:58:46rev. 19DeathyakPin 2 (ground) was connected to pin 2 on the motherboard. (supposed to be connected to pin 1)
2010-01-03 22:29:05rev. 19Fixed a misspelling of resistor.
2010-01-03 22:30:57rev. 21orien2v2
2010-01-15 22:57:06rev. 21SuondmaoI've personally found this function -- no link.
2010-02-27 22:24:39rev. 23Jan HuebchenAdded Ipod Classic to the charge options at pin 27
2010-02-27 22:34:40rev. 24The 2G iPod does not need the 68k resistor to output audio. I have fabricated a line out cable based on info from headfi.com and it works fine.
2010-04-18 13:12:15rev. 24
2010-04-18 13:26:18rev. 24
2010-06-11 21:39:05rev. 27Sebastian Birnbach
2010-07-25 11:44:44rev. 27John ThorborgEasier way to charge the battery of iPod's and iPhone's
2010-08-11 13:36:14rev. 28robertonly 1 edit, table -pin 2 now says it is internaly connected with pin 1 not pin 2
2010-10-17 14:03:36rev. 33Fred HarmonI'd like to modify my statement about chargning the 4th gen Nano. ins 25 and 27 should be tied together and then connected to a 10K ohm resistor, and the other side of this resistors then needs to be connected to 5v power if you want your Nano to charge.
2010-11-02 21:55:01rev. 33Vojta Babicpin 21 tested on my iPhone 3G and 3GS (I'm making a DIY accessory)
2010-11-17 21:51:11rev. 35
2011-01-04 14:00:23rev. 36jimInformation is needed whether pins 3 and 4 are active while the iphone is being used as a phone. In other words, do pins 3 and 4 output the speaker and mic signals during phone calls.
2011-01-27 22:26:33rev. 36Mr.HuntSome information added
2011-02-20 14:08:27rev. 38
2011-03-23 14:31:52rev. 38
2011-06-11 09:45:02rev. 39George
2011-06-11 09:47:01rev. 40anonymousadded section for iPod touch 3G as I got a dock/amp working
2011-08-16 22:08:23rev. 41Randy Blasikplease include the pin even if it isn't used. I was reverse engineering a project and the count mattered.
2011-10-04 21:52:21rev. 43David YangI feel necessary to ad this disclamier to prevent any possible legal risk in case some details are not accurate.
2012-07-24 18:14:57rev. 44A few grammatical and orthographical corrections.
2012-08-21 20:43:57rev. 44A few grammatical and orthographical corrections.
2013-02-20 21:49:07rev. 49Tested in-house
2014-08-18 13:27:46rev. 53

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should be correct