Difference between revisions of "JAMMA"

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(added photos, jamma pinout and a little more info)
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JAMMA (Japan Arcade Machine Manufacturers' Association) is a standard 56-way connector used on many arcade boards to simplify conversion of cabinets from one game to another. The majority of newer games use a subset of this pinout. Some games (i.e., Street Fighter) which need extra buttons have extra connectors for these additional controls. The JAMMA connector has a .156" pin spacing edge connector (male on the game board).  The JAMMA standard was invented in 1985; any game older than this will not be JAMMA.
 
JAMMA (Japan Arcade Machine Manufacturers' Association) is a standard 56-way connector used on many arcade boards to simplify conversion of cabinets from one game to another. The majority of newer games use a subset of this pinout. Some games (i.e., Street Fighter) which need extra buttons have extra connectors for these additional controls. The JAMMA connector has a .156" pin spacing edge connector (male on the game board).  The JAMMA standard was invented in 1985; any game older than this will not be JAMMA.
  
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To connect older non-JAMMA games to a standard JAMMA cabinet need a custom wiring harness is needed. In some cases a pre-made convertor harness could be used (the Namco2Jamma convertor shown is available from mikesarcade.com).
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[[image:Namco2Jamma.jpg|left|thumb|100px|Namco to JAMMA harness]]
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The easiest way to connect a PC to an arcade cabinet that is JAMMA ready is to use a [[J-PAC]] keyboard encoder (by Ultimarc).
  
[[image:Namco2Jamma.jpg|left|thumb|100px|Namco to JAMMA harness]]
 
To connect older non-JAMMA games to a standard JAMMA cabinet need a custom wiring harness is needed. In some cases a pre-made convertor harness could be used (the Namco2Jamma convertor shown is available from mikesarcade.com).
 
  
 
'''Relevant links:'''<br>
 
'''Relevant links:'''<br>
 
[http://homearcade.org/BBBB/jh.html| What To Do With Your JAMMA Harness by Bob Roberts]
 
[http://homearcade.org/BBBB/jh.html| What To Do With Your JAMMA Harness by Bob Roberts]

Revision as of 12:48, 22 February 2006

Brjammaharness.jpg
JAMMA Pinout from BitWalk.com

JAMMA (Japan Arcade Machine Manufacturers' Association) is a standard 56-way connector used on many arcade boards to simplify conversion of cabinets from one game to another. The majority of newer games use a subset of this pinout. Some games (i.e., Street Fighter) which need extra buttons have extra connectors for these additional controls. The JAMMA connector has a .156" pin spacing edge connector (male on the game board). The JAMMA standard was invented in 1985; any game older than this will not be JAMMA.


To connect older non-JAMMA games to a standard JAMMA cabinet need a custom wiring harness is needed. In some cases a pre-made convertor harness could be used (the Namco2Jamma convertor shown is available from mikesarcade.com).

Namco to JAMMA harness


The easiest way to connect a PC to an arcade cabinet that is JAMMA ready is to use a J-PAC keyboard encoder (by Ultimarc).


Relevant links:
What To Do With Your JAMMA Harness by Bob Roberts