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serial - Can't figure out EIA-232 (RJ45) to DB9 cable... (seems simple!) - Electrical Engineering Stack Exchange
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Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics
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5pcs 9 Pin Db9 Ribbon Flat Cable Rs232 Db9 Male Female Didc Dr9 Com Connector Adapter Cable 50cm - Connectors - AliExpress
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