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TTL_RS232
TTL-to-RS232 Converter, 2x5-pin Input, DB9M Output

 

MAX3232ESE+ RS232 transceiver
Converting TTL level logic to RS232 levels
Support 5-wire(RX, TX,RTS,CTS) serial port
Data rates up to 120kbps
Board Support: SBC-SAM9G45 | NET-SAM9X25

This TTL-to-RS232 converter features a 2×5-pin TTL input header and a DB9-M RS232 output port. The pinout of the input pins makes it plug-in compatible with the SBC-SAM9G45 development board's COM0-COM3 expansion headers (or the Bus-Serial expansion module's J3-J6 headers). A ribbon cable is provided to make that connection. However, the standard 2.54mm pitch of the header pins makes it easy to wire up to practically any development system with TTL UART headers.

Input interface

TTL level input, 2×5-pin 2.54mm (0.1") pitch header. The pinout is printed on the PCB for easy reference.

Pin Signal Name Pin Signal Name
1 NC 2 RXD
3 TXD 4 NC
5 GND 6 NC
7 RTS 8 CTS
9 NC 10 VDD33(3.3V)

Output interface

RS232 level, DB9 Male connector. The table below mimicks the orientation of the connector on its side.

Pin Signal Name Pin Signal Name
1 NC 2 RXD1R
3 TXD1R 4 NC
5 GND 6 NC
7 RTS1R 8 CTS1R
9 NC    

Order

No Title Price Order Now
1 TTL-to-RS232 Converter  $10USD
 
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