Open interface

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!Back side [https://remoteqth.com/img/wiki-oi26-back.png|noborder] * '''MIC''' - 3,5mm jack Microphone input. * '''RADIO''' - DB25 female connector for Radio. ## +13,8V (150mA) power input. ## CAT CTS. ## CAT TXD / Icom CI-V. ## not use. ## USB D+. ## AGNDC. ## TX isolated. ## PTT1 out '''(max 50V/400mA).''' ## CW1 out '''(max 50V/400mA).''' ## FSK out '''(max 50V/400mA).''' ## MIC input. ## TX audio. ## RX audio. ## Ground. ## CAT RTS. ## CAT RXD. ## USB +5V. ## USB D-. ## RX isolated. ## PTT2 out '''(max 50V/400mA).''' ## CW2 out '''(max 50V/400mA).''' ## reserved out '''(max 50V/400mA).''' ## Foot sw input. ## TX audio GND. ## RX audio GND. * '''PA PTT''' - Cinch PA PTT output '''(max 50V/400mA).''' * '''USB PC''' - isolated USB connect to PC. * '''FOOT SWITCH''' - Cinch foot switch input. * '''PADDLE''' - 6.3 mm stereo jack CW paddle input. * '''12V DC''' - Arduino DC power only - not use. * '''KEYBOARD''' - USB A female connector for USB keyboard (with Arduino Mega-ADK only) * '''ARDUINO USB''' - non isolated USB for Arduino firmware upload only. * '''DTR/RTS''' - DTR/RTS outputs ON/OFF - because the specifications of winkey defines default as ON, you need to have the ability to disable the outputs.
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