Spatial Reference Manual
Page 38 of 158
Version 4.4
04/06/2019
8.10 Evaluation Kit USB Cable
The evaluation kit is supplied with a 2 metre cable with a Spatial ODU plug on one end
and an overmoulded RS232 to USB converter on the other end, please see Illustration
11. The cable is the same 9 wire cable supplied with unterminated ODU cables and all
9 wires are connected on the ODU end. If required, it is possible to cut off the
overmoulded RS232 converter to get access to all the individual wires. The chip used
in the overmoulded RS232 converter is an FTDI FT232R and supports baud rates of up
to 2,000,000 baud.
Pin
Colour
Function
RS232 Converter
Connection
1
Black
Ground
USB Ground
2
Brown
Power
USB 5 volt supply
3
White
GPIO 1
4
Green
GPIO 2
5
Red
Primary RS232 Tx
FTDI RS232 Rx
6
Orange
Primary RS232 Rx
FTDI RS232 Tx
7
Yellow
Auxiliary RS232 Tx
8
Blue
Auxiliary RS232 Rx
9
Pink
Ground
Table 14: Evaluation kit USB cable pin-out
Illustration 11: Evaluation kit USB cable