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Encyclopedia > Dock Connector

Although a Dock Connector can refer to many things, Apple Computer has established the small, rectangular, 30 terminal connector used to connect a full sized iPod to a personal computer or power adapter as "the Dock Connector". Apple Computer, Inc. ... A white Fifth Generation iPod (a. ...


The pins of the connector are as follows:

Pin Signal Description
1 GND Ground (-)
2 GND Audio & Video ground (-)
3 Right Line Out — R (+)
4 Left Line Out — L (+)
5 Right In Line In — R (+)
6 Left In Line In — L (+)
7
8 Video Out
9 C S-Video Chrominance
10 Y S-Video Luminance
11 GND Serial GND
12 Tx iPod sending line, Serial TxD
13 Rx iPod receiving line, Serial RxD
14
15 GND Ground (-)
16 GND USB GND (-)
17
18 3.3V 3.3V Power (+)
19, 20 +12V FireWire Power 12 VDC (+)
21 Serial enable Connects to ground via 1M ohm 1% resistor in Belkin Amp/Charger. Looks to be that when this pin is grounded it closes a switch so that on loss of power the iPod shuts off. Dock has the same Resister. Some sources suggests to connect this pin to pin 11 by 500 KOhm resister to enable serial communications.
22 TPA (-) FireWire Data TPA (-)
23 5 VDC (+) USB Power 5 VDC (+)
24 TPA (+) FireWire Data TPA (+)
25 Data (-) USB Data (-)
26 TPB (-) FireWire Data TPB (-)
27 Data (+) USB Data (+)
28 TPB (+) FireWire Data TPB (+)
29, 30 GND FireWire Ground (-)


 
 

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