Samsung rs232 echos command

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We are using a standard RS-232 cable (USB to DB9-F with a PL chip). Service Mode settings: -RS-232 Jack: UART -EXT Link Support: ON -USB Serial: ON Hotel/Hospitality Mode: OFFĮX-Link com port settings: -9600 baud -8 bit -no parity -1 stop bit -no hardware flow control We use a GlobalCache iTack IP2SL gateway (has a DB9-M port) to connect to TTL cable.

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