Lowrance TR-120-Kit Set of 1 Male & 1 Female NMEA 2000® Terminators
Lowrance TR-120-Kit Set of 1 Male & 1 Female NMEA 2000® Terminators — Product description
Setting up a reliable NMEA 2000 network on your boat is essential for seamless communication between fish finders, chartplotters, GPS units, and other marine electronics. Without proper termination, signal reflections can cause data errors, intermittent dropouts, or complete network failure—right when you need it most out on the water. The Lowrance TR-120-KIT steps in as the straightforward solution, providing a matched pair of 120-ohm terminators designed specifically for NMEA 2000 backbones.
This kit includes one male and one female terminator, ensuring you can cap both ends of your network backbone correctly. Crafted from rugged, waterproof materials in classic black, these terminators withstand harsh marine environments, from saltwater spray to constant vibration during long fishing trips.
Why Every NMEA 2000 Network Needs Terminators
NMEA 2000 operates as a CAN bus system, much like automotive networks, where electrical signals travel along a twisted-pair backbone cable. For clean, error-free data transmission:
- Place terminators at both physical ends of the backbone—no exceptions.
- The 120-ohm impedance matches the cable's characteristic impedance, absorbing signals to prevent echoes.
- Without them, devices might show "Bus Off" errors, garbled data, or fail to recognize connected instruments.
Anglers and boaters often overlook termination during initial installs, leading to frustrating diagnostics later. Installing this kit upfront saves hours of troubleshooting and keeps your Lowrance ecosystem humming smoothly.
Simple Installation for Reliable Performance
These terminators plug directly into Micro-C connectors at the network's extremities. Here's a quick step-by-step to get you network-ready:
- Plan your backbone: Run the main T-connector backbone from bow to stern, dropping spurs to devices as needed.
- Attach the male terminator to the open male Micro-C end.
- Secure the female terminator on the female Micro-C end.
- Power cycle the network and verify with your display's diagnostic tools—no special tools required.
Pro tip: Label your terminators during install to avoid mix-ups during maintenance. They're keyed to prevent incorrect insertion, adding an extra layer of foolproof design.
Built for the Long Haul on the Water
Lowrance draws from decades of marine innovation to engineer components that endure. These terminators feature:
- IP67-rated sealing against water and dust ingress.
- UV-resistant housings that won't fade or crack under sun exposure.
- Gold-plated contacts for corrosion resistance and reliable conductivity in humid conditions.
- Compact form factor that tucks neatly into tight console spaces.
Whether you're chasing trophy bass in freshwater tournaments or battling offshore swells, this kit maintains signal integrity trip after trip.
Avoid These Network Setup Mistakes
From years of boating forums and tech support insights, here are pitfalls that terminators fix:
- Mismatched ends: Forgetting the male/female pair leads to open circuits.
- Extra terminators: Only one per end—multiples overload the bus.
- Spur confusion: Terminators go on the backbone, not drop cables.
- Power issues: Proper termination stabilizes voltage drops across long runs.
Integrating with Lowrance HDS, Elite, or Hook series? These terminators ensure plug-and-play compatibility every time.
Frequently Asked Questions
What is the purpose of NMEA 2000 terminators?
NMEA 2000 terminators provide the necessary 120-ohm resistance at each end of the network backbone. This prevents signal reflections that cause communication errors, ensuring stable data flow between your marine devices.
Do I need both male and female terminators in the TR-120-KIT?
Yes, every NMEA 2000 backbone has one male and one female open end. This kit supplies exactly one of each to properly cap your network without leftovers or shortages.
Are these terminators compatible with all NMEA 2000 devices?
Absolutely—they adhere to the official NMEA 2000 standard, working seamlessly with Lowrance, Simrad, B&G, and other certified devices featuring Micro-C connectors.
How do I know if my network needs terminators?
Check your multifunction display for bus errors, device dropouts, or slow response times. Visually inspect ends—if uncapped, add terminators immediately.
Can these terminators be used in saltwater environments?
Yes, their waterproof construction and corrosion-resistant materials make them ideal for both freshwater and saltwater boating, holding up against spray and submersion.
What if I already have one terminator installed?
You'll only need the matching gender from this kit. But for spares or future expansions, keeping a pair handy prevents downtime during repairs.
Will terminators affect my network speed?
No—proper termination optimizes speed and reliability. Untreated networks run slower due to retries from corrupted packets.
Lowrance has been a leader in marine electronics since it invented the first consumer sonar device in 1957. Lowrance legacy as the top brand in marine electronics has been sustained by more than 60 Year of innovation, reliability and quality, all driven by a never-ending quest to help anglers find more fish.
Lowrance Electronics 000012752 Attributes
- Used To: Properly Terminate An NEMA 2000 Network
- Type: One Male/ One Female Terminator
- Color: Black
- Quantity: Pack Of 2
Lowrance Electronics 000012752 Features & Benefits
- Lowrance Is Known For Producing The Best Fish Finders And Chartplotters For Recreational And Commercial Fishing
- Lowrance Provides The Best And Widest Line Up Of Marine Electronics Accessories To Enhance The Fishing And Boating Experience
- Designed For Durability
- Easy To Use
- Limited 1 Year Warranty
Lowrance TR-120-KIT
Set of 1 male and 1 female NMEA 2000r7reg; terminators
Including 1 male and 1 female terminator. 1 The terminator needs to terminate all connections that are not directly connected to the device.
SKU: NVN-56233
MPN: 000-0127-52
UPC: 042194533575
Technical specifications
| Brand | Lowrance |
| Model | Lowrance TR-120-Kit Set of 1 Male & 1 Female NMEA 2000® Terminators |
| SKU / MFR# | 56233 |
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