NBF-3 NMEA® 0183 Buffer User Manual For all variants: NBF-3-BAS, Rev A Issue 1.
NMEA 0183 Buffer - NBF-3 Contents Company Information Important Notices 4 5 Product Overview 6 Installation Warnings Mounting the NBF-3 8 9 Trademarks and Registered Trademarks Fair Use Statement Technical Accuracy Product Registration Product Guarantee Product Disposal Features Figure 1 - Example of a Typical NBF-3 Installation Package Contents Bulkhead Mounting DIN Rail Mounting Figure 2 - Mounting Options 5 5 5 5 5 5 6 6 7 9 9 9 Connecting Power to the NBF-3 10 NMEA 0183 Listener and Talker
Company Information Active Research Ltd Unit 5 Wessex Trade Centre Ringwood Road Poole, Dorset UK, BH12 3PF Telephone: +44 (0)1202 746682 Email: support@actisense.com Web: www.actisense.
NMEA 0183 Buffer - NBF-3 Important Notices The NBF-3 complies with the Electromagnetic Compatibility requirements according to EN60945. The unit should always be used in conjunction with appropriate CE marked, shielded cable and connectors to ensure compliance. A declaration of conformity is available for download at www.actisense.com. Trademarks and Registered Trademarks Actisense® and the Actisense logo are registered trademarks of Active Research Limited.
Product Overview The Actisense NMEA Buffer (NBF-3) distributes up to six identical data streams from a single source. Signals are buffered to ensure each receiver has the required voltage levels. Isolation on the input and each output allows nonisolated devices to be connected safely. The ability to power the source device allows the option of a single cable to connect both power and data to the source device.
NMEA 0183 Buffer - NBF-3 Package Contents 1 x NBF-3-BAS with pluggable screw terminals.
Installation Warnings ! All warnings and notices must be followed to ensure the correct operation of the NBF-3. Incorrect installation may invalidate the guarantee. It is highly recommended that all of the installation instructions are read before commencing the installation. There are important warnings and notes throughout the manual that should be considered before the installation is attempted.
NMEA 0183 Buffer - NBF-3 Mounting the NBF-3 Bulkhead Mounting Method: • Use the NBF-3 as a template to locate and mark the drill holes for mounting. Do not attempt to drill the holes while the NBF-3 is in position • Refer to “Warning 5: Mounting Locations” on page 8 • Four M3.5 stainless steel pan-head screws are provided with the NBF-3 for mounting to the bulkhead. If these screws are lost, suitable alternatives may be used.
Connecting Power to the NBF-3 • Refer to “Warning 3: Installation Code of Practice” on page 8. • The NBF-3 requires a power source providing between 10 and 35 Volts DC. • Connect the positive supply wire to the ‘PWR +VE’ screw terminal of the NBF-3. • Connect the negative / ground supply wire to the ‘PWR GND’ screw terminal of the NBF-3. • The NBF-3 should only be used with standard negative ground DC systems. • The input supply connection has continuous reverse polarity and ESD protection.
NMEA 0183 Buffer - NBF-3 Connecting to the NBF-3 Listener Port Connecting an NMEA Talker The input to the NBF-3 is labelled ‘Listener’ and this is where the NMEA Talker should be connected. • Connect the NBF-3 Listener A/+ to the positive data line of the NMEA Talker. • Connect the NBF-3 Listener B/- to the negative data line of the NMEA Talker. This is the ground / common connection of the Talker for RS232 or NMEA 0183 version 1 Talkers.
Connecting an RS232 Device (PC) as a Talker A PC can be connected the same way as an RS232 type NMEA Talker. • Connect the NBF-3 Listener A/+ to the Tx pin of the RS232 connector. On a standard 9 pin D-type connector, this is pin 3. • Connect the NBF-3 Listener B/- to the Ground pin of the RS232 connector. On a standard 9 pin D-type connector, this is pin 5.
NMEA 0183 Buffer - NBF-3 Connecting Listeners to the NBF-3 Talker Ports • Connect the NBF-3 Listener A/+ to the positive data line of the NMEA Talker. • Connect the NBF-3 Listener B/- to the negative data line of the NMEA Talker. When connecting RS232 or NMEA 0183 version 1 Talkers, this will be the ground / common line of the Talker. Always check the manual for the correct wiring. Note: All six Talker port connections are identical. Any number of Talker ports can be used in any combination.
Troubleshooting Guide The first 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.
NMEA 0183 Buffer - NBF-3 Specifications All specifications are taken with reference to an ambient temperature (TA) of +25°C. *Higher temperatures may cause the fuse to trip at less than 500mA. © 2013 Active Research Limited Mechanical Housing Material Protective Lid Material Sealing Materials Dimensions Weight Mounting Polycarbonate Polycarbonate Expanded silicone foam gasket, closed cell polyurethane splash guard and ePTFE waterproof vent 127mm (L) x 106mm (W) x 48mm (H) 210g 4 x 3.
NBF-3 Product Order Codes Part Number NBF-3-BAS DIN-KIT-1 Description NMEA Buffer with an OPTO input, 6 ISO-Drive™ outputs and Talker power feed Accessory Description DIN Rail mounting kit suitable for use with rail types: Top hat rail EN 50 022 or G section rail EN 50 035 Active Research Ltd Unit 5, Wessex Trade Centre Ringwood Road Poole, Dorset UK, BH12 3PF ® © 2013 Active Research Limited Telephone: +44 (0)1202 746682 Email: sales@actisense.com Web: www.actisense.
