User manual

Troubleshooting Guide

The rst thing to check when the NBF-3 is not performing as expected are the indicator LED’s.

LED Indicators

NBF-3 Power LED (Blue)

There is a power LED located above the power supply terminal connectors labelled PWR. This LED is visible through

the connector cover. When the NBF-3 is connected to a suitable power supply the LED will light.

If the Power LED (Blue) does not light:

• Ensure that the power terminal plug is correctly located and seated.

• Ensure that the wires are securely connected to the plug.

• Ensure that positive power and ground have been connected.

• Ensure that any external power fuse has not blown and that the external power isolation switch is closed.

• Ensure that the power supply meets the Voltage and Current requirements as dened in the Specications.

NBF-3 Listener Port Data LED (Green)

Indicates data being received on the Listener port. The LED ashes synchronously with received data. For high data

rates the LED may appear to be permanently on (and may appear slightly dim due to the fact that it is ashing fast).

If the Data LED (Green) does not light:

• Ensure that the NBF-3 has power, see “LED Indicators” above.

• Ensure that the NMEA Talker is powered and is congured to output data.

• Ensure that the Listener port terminal plug is correctly located and seated.

• Ensure that the wires are securely connected to the plug.

• Two data wires must always be connected to the NBF-3’s Listener port. If a negative data wire is not available, the

NMEA Talker’s ground should be connected to the B/- input on the NBF-3’s Listener port.

• Conrm the polarity of the data wires are correct.

No Data on an Output

• Conrm the power and input LED indicators are active, see “LED Indicators” above.

• Ensure that the plug is correctly located and seated.

• Ensure that the wires are securely connected to the plug.

• Two data wires must always be connected on the NBF-3’s Talker port. If a negative data wire is not available, the

NMEA Listeners ground should be connected to the B/- output on the NBF-3’s Talker port.

• The Listener needs to use the same baud rate as the Talker. The NBF-3 cannot change the baud rate, so the baud

rate on the input is the same as the baud rate on each of the outputs. For a PC connection, ensure the correct baud

rate is selected when opening the Com port.

• For PC connections the NMEA Reader application can be used to conrm the data. NMEA Reader is included on the

CD but the latest version can be downloaded here: www.actisense.com/NMEAReader/Downloads

Note: If the software application has control over the port settings, select: No parity, 1 stop bit, 8 data bits and no ow

control. NMEA Reader automatically sets these values.

Technical Support and the Returns Procedure

All installation instructions and any warnings contained in this manual must be applied before contacting Actisense

Technical Support. If the troubleshooting guide did not help resolve the problem and an error persists, please contact

Actisense Technical Support support@actisense.com to help trace the issue before considering the return of the

product. If Actisense support concludes that the NBF-3 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.