Dock connector

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This article is about computer dock connector. For other uses, see Docking.

A dock connector is a connector used to attach a mobile electronic device simultaneously to multiple external resources. The dock connector will typically carry a variety of signals and power, through a single connector, to simplify the process of docking the mobile device. A dock connector may be embedded in a mechanical fixture used to support or align the mobile device or may be at the end of a cable.

The dock connector was originally associated with laptops, but other mobile devices use the concept.

Laptops[edit]

Docking connectors for laptop computers are usually embedded into a mechanical device that supports and aligns the laptop and sports various single function ports and a power source that are aggregated into the docking connector. Docking connectors would carry interfaces such as keyboard, serial, parallel, and video ports from the laptop and supply power to it.

Mobile devices[edit]

Many mobile devices feature a dock connector.

Dock connector can be used to interface with accessories such as external speakers, including stereo systems and clock radios. Automotive accessories for the mobile devices include charging cradles, FM transmitters for playing audio through the car's speakers and a GPS receiver. There are dock connector cables that offer additional capability such as direct integration with the car's audio system and controls.

Apple 30-pin dock connector[edit]

Apple 30-pin dock connector
Apple Dock Connector.jpg
Type Data and power connector
Designer Apple Inc.
Produced 2003 - 2014(discontinued)[1]
Superseded by Lightning
Pins 30

Apple's proprietary 30-pin connector was common to most Apple mobile devices (iPhone (1st generation), iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S, 1st through 4th generation iPod Touch, iPad, iPad 2, and iPad 3) from its introduction with the 3rd generation iPod in 2003 until the Lightning connector was released in late 2012. Originally, the Apple dock connector carried USB, FireWire, some controls and line-level audio outputs.[2] As the iPod changed, so did the signals in the dock connector. Video was added to the connector. FireWire was phased out of the iPods, which led to a discontinuity in usage of the dock connector. As a result of the popularity of Apple's iPod and iPhone devices using the connector, a cottage industry was created of third-party devices that could connect to the interface.[3] With the discontinuation of the sixth-generation 160GB iPod Classic and the iPhone 4S, the last Apple products to feature the original 30-pin connector, the connector was also discontinued in September 2014.[1][4]

Apple Lightning connector[edit]

Apple Lightning connector
Lightning connector.svg
Type Data and power connector
Designer Apple Inc.
Produced 2012
Superseded 30-pin dock connector
Pins 8
for pinout details, see Lightning (connector)
Main article: Lightning (connector)

Apple introduced a 8-pin dock connector, named Lightning, on September 12, 2012. The iPhone 5, iPhone 5S, iPhone 5C, the fifth generation iPod Touch, seventh generation iPod Nano, all iPad minis, iPad 4 and iPad Air use the Lighting connector. Apple Lightning connector pins can be accessed from both sides of the connector allowing insertion with either side facing up.[5] The Lightning connector replaced the 30-pin dock connector used by previous generations of iPods, iPhones, and iPads. Apple continued to sell the older iPad 2, iPhone 4S and iPod Classic products with the 30-pin connector even after the Lightning connector was introduced on the newer mobile products.

Samsung 30-pin dock connector[edit]

Samsung 30-pin dock connector
Type Data and power connector
Designer Samsung
Pins 30

The Samsung Galaxy Tab and Galaxy Note 30-pin dock/charging connector is very similar to - although not identical with - the non-proprietary PDMI connector. It is unrelated to the Apple 30-pin connector.[6]

Korean standard cellular phone 24-pin and 20-pin dock connectors[edit]

Korean standard cellular phone dock connector (TTAS.KO-06.0028)
Type Data and power connector
Designer Korean Telecommunications Technology Association (TTA)
Produced 2001
Pins 20 (24 pre-2007)

the 2001 Korean Telecommunications Technology Association (TTA) "Standard on I/O Connection Interface of Digital Cellular Phone" defined a 24-pin electromechanical interface specifications for cellular phone charging, wired data communication, analog audio, etc.[7] The 2007 updated version has only 20 pins but added composite video output support among other changes.[8]

Portable Digital Media Interface (PDMI)[edit]

Portable Digital Media Interface (PDMI)
PDMI.jpg
Designer CEA
Designed February 2010
Length 22 mm
Width 2.5 mm
Hot pluggable Yes
External Yes
Audio signal Analog stereo, digital DisplayPort (1-8 channels, 16 or 24-bit linear PCM; 32 to 192 kHz sampling rate)
Video signal Digital 2-lane DisplayPort 1.1, 4.32 Gbit/s data rate
Pins 30 pins
Data signal USB 3.0 SuperSpeed + 1 Mbit/s for the DisplayPort auxiliary channel
for pinout details, see PDMI (Portable Digital Media Interface)
Main article: PDMI

The Portable Digital Media Interface (PDMI) is a 30-pin interconnection standard for portable media players. It was developed by the Consumer Electronics Association as ANSI/CEA-2017-A, Common Interconnection for Portable Media Players in February 2010. The standard was developed with the input or support of over fifty consumer electronics companies worldwide.[9]

Other dock connectors[edit]

See also[edit]

References[edit]

  1. ^ a b Casey Johnston (9 September 2014). "Pod classic is dead, and the 30-pin connector along with it". ars technica. 
  2. ^ The Apple 30-pin Dock Connector.
  3. ^ http://www.pcmag.com/article2/0,2817,2245786,00.asp
  4. ^ Apple iPhone 4s discontinued, iPhone 5c becomes cheapest option
  5. ^ Apple iPhone 5 features; Apple.com
  6. ^ "Samsung Galaxy Tab Connector". Kineteka Systems. Retrieved 2013-12-12. 
  7. ^ "Standard on I/O Connection Interface of Digital Cellular Phone" TTAS.KO-06.0028 released in March 2001. Later updated in 2002 (/R2), and in 2007 (/R4)
  8. ^ TTA certifies first 20-pin battery charger for mobiles, Telecompaper.com, 2008-07-25 
  9. ^ CEA-2017, Common Inerconnection for Portable Media Players

External links[edit]