Operator Manual
Issue 1
TIL – Eng – Spec – 080
Page 64 of 70
SeaHub
The USB link between the
SeaHub and the PC doesn’t
work
•
If using the USB cable supplied with the SeaHub, check that
the LEDs are illuminated within the cable connector
mouldings – this indicates that there is a voltage on the cable
to the peripheral.
•
Check that the USB cable length doesn’t exceed 5m
•
Check that the SeaHub USB port is not plugged into any
intermediate hubs between the unit and the PC.
•
Use the “Microsoft Windows” hardware Device Manager to
check that all the USB drivers are correctly installed and
setup on the PC.
USB peripherals I plug into the
front of the SeaHub unit, don’t
work
•
Check that the SeaHub is powered up correctly
•
Check that the SeaHub modules onboard peripherals and
hub controller have correctly registered and detecting on the
PC’s operating system
•
Check that all cables are correctly and firmly connected to
their appropriate sockets.
•
Use the “Microsoft Windows” hardware Device Manager to
check that all the USB drivers are correctly installed and
setup on the PC.
•
Use the “Microsoft Windows” hardware Device Manager to
check that the USB bandwidth available to connected
peripherals versus their demands has not been exceeded.
•
Check that the connected USB peripheral is not exceeding
the 500mA current limit on each USB port. Diagnostic LED’s
are available within the module to indicate this – contact
Technical Support for further details.
My serial port device doesn’t
work in RS232 mode
•
Check RX and TX connections are correct on both ends –
the SeaHub is wired as a DTE, the same as a PC. The
sensor should use DCE wiring.
•
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 nothing is shorting out the RS232 signals, and
voltage levels are between
±
5V and
±
15V
•
Check that no two conflicting devices have been connected,
if using Port A, and the link connection to the AIF connector
have been made
•
Check the port is correctly configured as RS232 mode
through the Seanet configuration interface.
•
If the device is drawing power from the SeaHub, check that
the power supply requirements for either the AC (Mains) or
DC source have not been exceeded.
