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4 pin HP48 calculator proprietary connector layout
Разъем 4 pin HP48 calculator proprietary
Pin Name Dir Description
1 - - -
2 TXD OUT Transmit Data
3 RXD IN Receive Data
4 GND - Ground
На распиновку HP48/HP95 calculator есть 2 отзыв(а): 2 положительных и 0 отрицательных.

Эта распиновка
Источник(и) этой и дополнительной информации: Hardware Book
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