Actisense NGT-1, User Manual

Page: 13 / 16

NMEA 2000 to PC Interface - NGT-1
Page 13 © 2015 Active Research Limited
Troubleshooting Guide
This guide will concentrate on all relevant troubleshooting issues, that may arise on your NGT-1 . Therefore, the cables
between the NGT-1 hardware and any other devices should be checked as a matter of course, before continuing with
this guide.
Status LEDs
The NGT-1 hardware has two bright LEDs that can be seen through the case to indicate when data is received from
either the serial device or NMEA 2000 network connection. It is an important point to note that these two LEDs can only
show when their respective data is RECEIVED; it is not possible to show both transmit and receive simultaneously on a
single colour LED.
These LEDs can be used to debug potential problems using the ‘Behaviour’ and ‘Solution’ details in Table 4 using
NMEA Reader as a diagnostics tool.
Figure 5 - Diagnostic LED
Behaviour Solution
USB only: The LEDs do not
light
The USB driver has not been installed correctly, refer to “USB Driver Installation”
on page 8
The NMEA 2000 LED does not
flash when the NMEA 2000
network is active
Check that the NGT-1 is connected to the NMEA 2000 network and that the NMEA
2000 network is operational refer to “Connecting to an NMEA 2000 Network” on
page 9 .
Confirm that at least one periodic PGN message is being sent on the NMEA 2000
network and there are at least two NMEA 2000 devices on the network. If another
NGT-1 is available, NMEA Reader can be used to prove the status of the NMEA
2000 network.
The serial LED does not flash
when connected to a PC
software application
Check that the NGT-1 is connected correctly to the PC (via USB or RS232 port)
and the software application has opened the COM port connected to the NGT-1 at
the matching baud rate. Refer to the relevant connection option from those
described on
page 8
onwards.
Both LEDs flash together, once
every 10 seconds
Indicates that the NGT-1 is powered but no data is received from either connection.
If valid data should be present and transferred by the NGT-1 on one or both inputs,
refer to the two rows above.
The LEDs flash alternately very
fast (4 times per second). This
sequence repeats continuously
Indicates that the NGT-1 has lost its Firmware, please connect the unit to the latest
NGT-1 Actipatch and re-install the Firmware. The latest Firmware can be found on
the NGT-1 downloads web page.
Technical Support and the Returns Procedure
All installation instructions and any warnings contained in this manual must be followed before contacting Actisense
technical support. If the troubleshooting guide did not help resolve the problem and an error persists, please contact
Actisense technical support to help trace the issue before considering the return of the product. If Actisense support
concludes that the NGT-1 unit should be returned to Actisense a Returns Number will be issued by the support engineer.
The Returns Number must be clearly visible on both the external packaging and any documentation returned with the
product. Any returns sent without a Returns Number will incur a delay in being processed and a possible charge.