{"product_id":"actisense-a2k-ter-m-nmea-2000-micro-terminator-male","title":"Actisense NMEA 2000 Micro Terminator, Male (A2K-TER-M)","description":"\u003cp class=\"nvn-hero\"\u003eThe Actisense A2K-TER-M is the male Micro terminator your NMEA 2000 backbone needs at one end. It carries a precision 120-ohm resistor, threads onto a standard M12 connector, and seals to IP67 when mated. Every NMEA 2000 network needs exactly two terminators, and this is the reliable, no-tools way to cap one end.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eIf you're building or extending an NMEA 2000 network, this little Actisense terminator is one of those parts you can't skip. Every NMEA 2000 backbone needs exactly two termination resistors, one plugged into each end. Leave one off, or add a third somewhere in the middle, and the whole bus starts acting flaky. Dropped sensors, intermittent data, gauges that read fine one minute and blank the next. Get the termination right and the network just works.\u003c\/p\u003e\n\u003cp\u003eHere's what's going on electrically. Each terminator carries a 120-ohm resistor, accurate to plus or minus 1% and rated at 500mW. Put one at each end of the backbone and the two resistors sit in parallel across the data pair, giving the network the 60 ohms of impedance the NMEA 2000 standard calls for. That matched impedance is what keeps the digital signal clean as it travels down the backbone, so every device on the bus, from your GPS to your engine gateway to your tank senders, hears the same clean data.\u003c\/p\u003e\n\u003cp\u003eThis is the male version, part number A2K-TER-M. It uses a standard M12 connector with the usual \"A\" polarization, so it threads straight into the female socket at the end of a Micro-style NMEA 2000 backbone. If your last tee or backbone cable leaves a female connector open at the end of the run, this is the terminator you want. Need to cap a male connector instead? Actisense makes the female version for that. Between the two you can terminate both ends of any Micro backbone.\u003c\/p\u003e\n\u003cp\u003eActisense didn't cut corners on the build. The male contact is brass with gold plating, so it makes a low-resistance connection that won't corrode in a damp bilge or a salty cockpit. The contact carrier is PA66 nylon with 30% glass fill for stiffness, the housing is solid PVC, and the screw cap is nickel-plated brass. There's a rubber O-ring seal inside, and once it's mated and the cap is hand-tight, the connection is rated IP67. That means it shrugs off spray, washdowns, and the occasional dunk. You don't need any tools to install it. Just push it onto the open connector and snug the threaded collar down by hand.\u003c\/p\u003e\n\u003cp\u003eBecause it's built for real boats, the temperature range is wide. It's rated to operate from -25C all the way to +70C, and it'll survive storage from -40C to +85C. That covers a hot engine room in July, a frozen helm in a northern winter, and everything in between. The power pair is rated to 60VDC and 4A, well within what an NMEA 2000 bus ever sees, so there's plenty of headroom. And at just 15 grams, it adds no real weight to the ends of your backbone.\u003c\/p\u003e\n\u003cp\u003eOne more thing worth knowing. NMEA 2000 shares its physical connector and cabling with the DeviceNet Micro-C standard, so these Micro terminators use the same M12 thread and pinout you'll find across the whole NMEA 2000 ecosystem. If you already run a Micro backbone, this drops right in. And if you're chasing a problem, an easy first check is to confirm you have exactly two terminators on the bus and that both are seated and tight. More than half the dead-network calls we take come down to a missing or loose terminator.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Anyone wiring up a new NMEA 2000 system, anyone extending an existing backbone with new tees, and anyone tracking down a network that's misbehaving because it was never terminated properly in the first place. It's a small, inexpensive part, but it's doing an important job. A marine network is only as reliable as its weakest connection, so it's worth using quality terminators from a company that's spent 20-plus years building NMEA 2000 gear. Order two if you're starting fresh, one male and one female, and you'll have both ends of your backbone covered.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e120-ohm resistor accurate to plus or minus 1% and rated 500mW, so a matched pair gives the network the correct 60-ohm impedance\u003c\/li\u003e\n  \u003cli\u003eMale M12 connector with standard 'A' polarization threads onto the female socket at the end of a Micro-style NMEA 2000 backbone\u003c\/li\u003e\n  \u003cli\u003eGold-plated brass male contact makes a low-resistance connection that resists corrosion in damp, salty conditions\u003c\/li\u003e\n  \u003cli\u003eSealed to IP67 when mated, with a rubber O-ring seal and nickel-plated brass screw cap\u003c\/li\u003e\n  \u003cli\u003eRated 60VDC and 4A on the power pair, well beyond anything an NMEA 2000 bus demands\u003c\/li\u003e\n  \u003cli\u003ePA66 contact carrier with 30% glass fill and a solid PVC housing stand up to vibration and marine conditions\u003c\/li\u003e\n  \u003cli\u003eWide operating range from -25C to +70C handles hot engine rooms and cold-weather helms\u003c\/li\u003e\n  \u003cli\u003eHand-tighten install with no tools required, just push on and snug the collar by hand\u003c\/li\u003e\n  \u003cli\u003eOnly 15 grams, adding no meaningful weight to the ends of your backbone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Actisense reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does an NMEA 2000 terminator actually do?\u003c\/summary\u003e\n    \u003cp\u003eIt caps the end of the network backbone with a 120-ohm resistor. Every NMEA 2000 network needs exactly two terminators, one at each end. Together they set the 60-ohm impedance the bus needs to pass clean data. Without correct termination you get dropped devices and intermittent readings.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this the male or female terminator?\u003c\/summary\u003e\n    \u003cp\u003eThis is the male version, part number A2K-TER-M. It plugs into a female connector, so use it where the end of your backbone leaves an open female socket. If you need to cap an open male connector, you want the female terminator instead.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow many terminators does my network need?\u003c\/summary\u003e\n    \u003cp\u003eExactly two per network, one at each end of the backbone. Not one, not three. A common backbone uses one male and one female terminator so both open ends get capped.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the resistance value?\u003c\/summary\u003e\n    \u003cp\u003eEach terminator is 120 ohms, accurate to plus or minus 1%, rated at 500mW. When you have one at each end, the two resistors sit in parallel and present 60 ohms to the network.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it waterproof?\u003c\/summary\u003e\n    \u003cp\u003eWhen it's mated and the screw cap is hand-tight, the connection is rated IP67. A rubber O-ring seal keeps out spray and washdown water. It's built to withstand the marine environment.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it fit my NMEA 2000 network?\u003c\/summary\u003e\n    \u003cp\u003eIt uses a standard M12 connector with 'A' polarization, the Micro-C physical standard that NMEA 2000 is built on. If you run a Micro-style backbone it threads right on.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat temperature range can it handle?\u003c\/summary\u003e\n    \u003cp\u003eIt's rated to operate from -25C to +70C, and to survive storage from -40C to +85C. That covers hot engine rooms and freezing winter helms.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need tools to install it?\u003c\/summary\u003e\n    \u003cp\u003eNo. Push it onto the open connector and hand-tighten the threaded collar. No tools, no crimping, no wiring.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\n    \u003cp\u003eThe male contact is gold-plated brass, the contact carrier is 30% glass-filled PA66 nylon, the housing is PVC, and the screw cap is nickel-plated brass. It's built to last in a marine setting.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eActisense NMEA2000 Micro Terminator - Male\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eActisense\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eA2K-TER-M\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e5060998710300\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnector Gender\u003c\/th\u003e\n\u003ctd\u003eMale\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNetwork Standard\u003c\/th\u003e\n\u003ctd\u003eNMEA 2000 (Micro-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInternal Termination Resistor\u003c\/th\u003e\n\u003ctd\u003e120 ohms plus or minus 1%, 500mW\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRated Voltage (power pair)\u003c\/th\u003e\n\u003ctd\u003e60VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRated Current\u003c\/th\u003e\n\u003ctd\u003e4A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMating Thread\u003c\/th\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eContact Polarization\u003c\/th\u003e\n\u003ctd\u003eStandard M12 'A' polarization\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMale Contact\u003c\/th\u003e\n\u003ctd\u003eBrass, gold plated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eContact Carrier\u003c\/th\u003e\n\u003ctd\u003ePA66 (30% glass filled), black\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eScrew Cap\u003c\/th\u003e\n\u003ctd\u003eBrass, nickel plated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eO-Ring Seal\u003c\/th\u003e\n\u003ctd\u003eRubber, black\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHousing\u003c\/th\u003e\n\u003ctd\u003ePVC, black\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProtection Rating\u003c\/th\u003e\n\u003ctd\u003eIP67 (when mated)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-25C to +70C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStorage Temperature\u003c\/th\u003e\n\u003ctd\u003e-40C to +85C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e15g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does an NMEA 2000 terminator actually do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It caps the end of the network backbone with a 120-ohm resistor. Every NMEA 2000 network needs exactly two terminators, one at each end. Together they set the 60-ohm impedance the bus needs to pass clean data. Without correct termination you get dropped devices and intermittent readings.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this the male or female terminator?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"This is the male version, part number A2K-TER-M. It plugs into a female connector, so use it where the end of your backbone leaves an open female socket. If you need to cap an open male connector, you want the female terminator instead.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many terminators does my network need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Exactly two per network, one at each end of the backbone. Not one, not three. A common backbone uses one male and one female terminator so both open ends get capped.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the resistance value?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Each terminator is 120 ohms, accurate to plus or minus 1%, rated at 500mW. When you have one at each end, the two resistors sit in parallel and present 60 ohms to the network.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it waterproof?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"When it's mated and the screw cap is hand-tight, the connection is rated IP67. A rubber O-ring seal keeps out spray and washdown water. It's built to withstand the marine environment.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it fit my NMEA 2000 network?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It uses a standard M12 connector with 'A' polarization, the Micro-C physical standard that NMEA 2000 is built on. If you run a Micro-style backbone it threads right on.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What temperature range can it handle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's rated to operate from -25C to +70C, and to survive storage from -40C to +85C. That covers hot engine rooms and freezing winter helms.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need tools to install it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. Push it onto the open connector and hand-tighten the threaded collar. No tools, no crimping, no wiring.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is it made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The male contact is gold-plated brass, the contact carrier is 30% glass-filled PA66 nylon, the housing is PVC, and the screw cap is nickel-plated brass. It's built to last in a marine setting.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Actisense","offers":[{"title":"Default Title","offer_id":44859281113181,"sku":"111806","price":13.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/111806XL.jpg?v=1785875321","url":"https:\/\/nvnmarine.com\/products\/actisense-a2k-ter-m-nmea-2000-micro-terminator-male","provider":"NVN Marine","version":"1.0","type":"link"}