Actisense NMEA2000 Smart Universal Micro Terminator - Diagnostic Power & Voltage Monitoring

NMEA2000 Smart Universal Micro Terminator

Terminate your NMEA 2000 network regardless of whether a male or female connection is required and use the TER-Us smart functionality to easily diagnose any power or voltage issues on your NMEA 2000 bus.

The TER-U can be fitted directly at the end of your network or used as an in-line terminator in difficult-to-access locations.

The TER-U acts as an intelligentdiagnosticterminator, providing instant feedback on the state of the NMEA 2000 bus onboard. It is also auniversalterminator which can be used as an inline terminator or else as either a Male or Female terminator, as it comes supplied with blanking caps.

It has a built-in high-accuracy voltage monitoring circuit, which continuously monitors the bus voltage, and will illuminate its internal LEDs when it detects that the bus voltage is of the correct polarity. If it detects that the voltage is within the minimum required range, it will indicate GREEN immediately, providing continuous, valuable feedback as to the state of the bus.

If the voltage falls below the minimum required level of 9.0V, then the LEDs will illuminate RED, showing there is a potential problem with the NMEA 2000 bus power. Similarly, if the LEDs do not illuminate at all, this would indicate that there was no power or that the polarity was incorrect. This monitoring function happens continuously and remains permanent.

Because these terminators are illuminated, they instantly provide feedback that the terminator is actually present (i.e., able to identify that there are two terminators present) especially helpful in difficult-to-reach locations.

This smart universal micro-terminator can be used as either a male or female terminator or even as a feed-through terminator for applications at the top of masts, making it truly universal.

Technical Specifications:

Electrical

• Rated Current - 4A


• Rated Voltage - 36VDC


• Terminator Resistance - 120 1%

Features

• Green LED - NET-S 9.05V 1%


• Red LED - NET-S < 9.05V 1%

Mechanical

• Male Contact - Brass, gold plated


• Female Contact - Phosphor bronze, gold plated


• Male Contact Carrier - PA66 (30% Glass-filled), black


• Female Contact Carrier - PA66 (30% Glass-filled), black


• Male Contact Polarization - Standard M12 -A- polarization


• Female Contact Polarization - Standard M12 -A- polarization


• Male Mating Thread - M12


• Female Mating Thread - M12


• Male Screw Cap - Brass, nickel plated


• Female Screw Cap - Brass, nickel plated


• Housing - PVC black


• Weight - 23.6g


• Flammability Rating - UL94 V0

Approvals and Certifications

• Protection - IP67 (when mated)


• Operating Temperature - -20C to +70C


• Storage Temperature - -40C to +85C

The Actisense NMEA2000 Smart Universal Micro Terminator (Part Number: A2K-TER-U) is an essential component for ensuring reliable communication within your NMEA 2000 network. Designed to be versatile, this smart terminator can be used at the network's end or as an inline device, making it suitable for hard-to-access locations such as mast tops or crowded engine rooms. Its universal design allows it to function as both a male or female terminator, supplied with blanking caps for flexibility. The device features built-in high-accuracy voltage monitoring that continuously checks bus voltage levels, providing real-time feedback via integrated LEDs. When the bus voltage is within the optimal range, the green LED illuminates, indicating proper operation. If the voltage drops below 9.0V, the red LED lights up, signaling a potential power issue that needs attention. If no LEDs are lit, it indicates an absence of power or incorrect polarity, allowing for quick troubleshooting. This instant visual feedback is especially valuable in inaccessible or crowded installations, ensuring that network integrity is maintained without extensive testing. The terminator's robust construction includes gold-plated brass male contacts and phosphor bronze female contacts, both with corrosion-resistant coatings, ensuring reliable connections over time. The device is rated for up to 4A current and 36VDC operation, with a resistance of 120 ohms ±1%, meeting industry standards. Its IP67 protection rating when mated safeguards against water and dust ingress, making it suitable for marine environments. The housing is constructed from durable PVC with UL94 V0 flammability rating, capable of withstanding temperatures from -20°C to +70°C. The compact design, weighing approximately 0.7 ounces, makes it easy to install in tight spaces while maintaining high performance. Whether used as a network terminator or diagnostic tool, the Actisense NMEA2000 Smart Universal Micro Terminator enhances network reliability, simplifies troubleshooting, and ensures consistent data communication across your marine or industrial NMEA 2000 systems. For detailed installation instructions, refer to the online owner’s manual available at the provided link.

Features:

• Smart diagnostic functionality with instant LED feedback on bus power status

• Universal design functions as male, female, or inline terminator

• High-accuracy bus voltage monitoring with green and red LEDs

• Corrosion-resistant brass and phosphor bronze contacts with gold plating

• Rated for 4A current and 36VDC operation

• IP67 rated for water and dust resistance when mated

• Durable PVC housing with UL94 V0 flammability rating

• Operates effectively in temperatures from -20°C to +70°C