Changes
File:WIEDMANNJoyceBtxModul-3.jpg
</gallery>
== Chipset ==
* NEC D8251AFC - [[8251 USART chip|8251 chip]] - usart
* NEC D8253C-2 - [[8253 chip]] - triple 16bit timer
* MC1488N - Quad Line Driver
* MC1489N - Quad Line Receiver
* 74LS138N - 3-line to 8-line decoder / demultiplexer
* NE555N - General Purpose Single Bipolar Timer
