Difference between revisions of "CDC slot"

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(sorting by form factor gives a better overview about “inofficial” cross model compatibility)
(→‎Overview)
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=== Overview ===
 
=== Overview ===
  
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Cards listed here have a 30pin Intel MDC connector/interface(?) or a similar proprietary connection. Those cards appear as either AC97 and/or USB devices. The author read that PCI is available to the daughter cards as well, which is probably wrong.
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Cards listed here have a 40pin proprietary connector carrying signals for PCI, AC97 and USB.
  
 
Guessed size is 60×40mm and they show those two diagonally screw holes.
 
Guessed size is 60×40mm and they show those two diagonally screw holes.
  
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''Some'' USB-only daughter cards with 4 or a little more pins are listed here until they are grouped out/together. E.g. some Bluetooth cards have “memory stick” size, long and thinner.
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''Some'' USB-only daughter cards with 4 or a little more pins are listed here until they are grouped out/together. E.g. some Bluetooth cards have “memory stick” size, long and thinner (and only one screw hole).
  
 
Any other connectors/form factors? Mention connectors, size and FRU.
 
Any other connectors/form factors? Mention connectors, size and FRU.

Revision as of 18:04, 11 April 2014

The CDC (Communications Daughter Card) slot is an internal expansion slot found in modern ThinkPads.

It is not meant for customer upgrades.
Different CDC slots exist for different functions and different form-factor cards, so you cannot just install any CDC adapter into a CDC slot.

The types of CDC cards you can use in your system is dependent on the BIOS. If you insert a Bluetooth IV with 56K Modem from an R52 system (for instance) and place it into an R51 system which only had the Modem Daughter Card, the system refuses to boot up and displays Invalid Daughter Card.


Overview

Cards listed here have a 40pin proprietary connector carrying signals for PCI, AC97 and USB.

Guessed size is 60×40mm and they show those two diagonally screw holes.

Some USB-only daughter cards with 4 or a little more pins are listed here until they are grouped out/together. E.g. some Bluetooth cards have “memory stick” size, long and thinner (and only one screw hole).

Any other connectors/form factors? Mention connectors, size and FRU.

CDC Adapters

Photos (click to see full size)
CDC in a ThinkPad T43-2686
analog modem 56k at cdc
Dscf0119.png

Models featuring this Technology

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