MicronNav 200 Hardware Manual
0734-SOM-00002-01
Page 26 of 27
The RAT (Remote Access Terminal) does not work.
•
Check that the RAT being used is labelled as a “Version , S- ” RAT The
MicronNav Hub unit does not support previous versions (i.e. With Trackball instead
of Togglestick pointer).
Check that the connection of the RAT has not caused the power supply requirements for
either the AC (Mains) or DC source to be exceeded
The serial port device doesn’t work in RS232 mode.
•
Check RX and TX connections are correct on both ends
– the MicronNav Hub is
wired as a DTE, the same as a PC.
•
Check that ground connections are correct, and made to the COMMS GROUND
•
Check that baud rates and serial setup on both the device and the PC are correct
•
Check the cable length used does not exceed the stated RS232 specification for the
baud rate being used.
– 10m or less for 115.2KBaud
•
Check that if handshaking is required, Port A is being used (as it is the only port that
supports RTS and CTS signals)
•
Check that there are no short circuit faults on the RS232 signals, and voltage levels
are between ±5V and ±15V
•
Check the port is correctly configured as RS232 mode through the Genesis
configuration interface
•
If the device is drawing power from the MicronNav Hub, check that the power supply
requirements for either the AC (Mains) or DC source have not been exceeded
