Serial port (NAS540)

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Serial port (NAS540)

Hardware

The NAS540 has a 3.3V TTL serial port
Look at J1 on PCB_Photos_(NAS540)

Pinning:

+----+----+----+    +----+
|--- | RX | TX |    | GND|
+----+----+----+    +----+

FTDI cable colors

-    Yellow Orange   Black

Connecting VCC/3.3V is not required.

You can´t connect this directly to an RS232 port, you need a TTL level convertor, or something like a FTDI TTL-232R-3V3.

Settings

115200 baud, no parity, 8 data bits, 1 stop bit, no handshake.