Japan Amusement Machinery Manufacturers Association

The acronym stands for the JAMMA Jamma or Japan Amusement Machinery Manufacturers Association and a uniform interface standard for game boards and vending machines. JAMMA stands for the same slots Fair ( Amusement Machine Show) in Japan.

JAMMA connector

So is the talk of JAMMA, then that means mostly not the above-mentioned association, but a 56- pin interface, with which the machine cabinet is connected to the actual game board. The JAMMA connector was introduced in 1986 and allows it to operate boards from different manufacturers in the same arcade machine with the same standard. It hardly matters whether it is in the vending machine to a universal housing or a "dedicated Cabinet" (the outer packaging is a special game dedicated ) is. Until 1986, most machines were designed exclusively for certain games or certain games manufacturer. Boards with other standards could only be fitted with self-made adapters.

A slot machine cabinet is the JAMMA connector inputs for RGB video with CSync, stereo sound and two Münzeinwurfsperren, and outputs two sets of game controllers with nine digital channels (typically start button, 4 directions and 4 fire buttons ) at your disposal, and two outputs for Coin Acceptor, a service and a tilt switch. The interpretation of the significance of the outputs is left of the game board so that in principle every game with JAMMA connector is capable of running in each cabinet with JAMMA connector but differences in operation can be made by the selection and arrangement of the control of the Cabinet.