Load
Review how the Actisense NGW-1-ISO NMEA Gateway connects, how it operates and which installation requirements apply to this model.
Open this example as a new project. Use your own parts and cable lengths to make the plan yours.
Backbone-powered gateway has no independent DC supply pair; connector markers do not simulate NMEA power.
Backbone-powered gateway has no independent DC supply pair; connector markers do not simulate NMEA power.
Wiring diagram
Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.
Installation notes
Guidance for this model, with sources linked beside the relevant advice.
Verified against the manufacturer's documentation (rev. User Manual v3.2), checked 2026-10-01. Manufacturer documentation →
NGW-1-ISO converts supported NMEA 0183 sentences and NMEA 2000 PGNs. This is the ISO cable version, not NGW-1-USB: its operating supply comes from a powered NMEA 2000 backbone. The manual specifies 35 mA at 12 V, maximum 50 mA and LEN 1. Add that demand to the network power budget. The gateway’s internal 9.5–35 V tolerance does not authorize running other NMEA 2000 equipment from a 24 V boat bank.
On the ISO/0183 cable, red is IN A/+ and black IN B/−, accepting the other device’s talker output. White is OUT A/+ and blue OUT B/−, feeding its listener input. The cable’s shield/screen is marked ISO GND and is left unconnected in the standard device-to-device diagram. These red and black wires are signal inputs, not battery leads. Check A/B labels at both devices, since naming and colors differ between manufacturers.
Connect the Micro-C drop to a correctly powered and terminated NMEA 2000 network. Use a compatible adapter if the vessel has a proprietary connector system. Do not attach loose battery leads to the 0183 interface. The symbol intentionally offers data connector markers rather than standalone DC terminals; it cannot calculate power delivery inside a NMEA backbone. Protect and size the backbone feed for all connected devices.
Match the 0183 baud rate and enable only the sentences/PGNs required by the connected equipment. Actisense Toolkit configures supported firmware; confirm the actual firmware and conversion list before promising an instrument value will translate. A flashing receive indicator proves incoming traffic, not that a matching conversion is enabled or received by the destination. If one direction fails, check the source’s talker pair, destination’s listener pair, baud rate and conversion settings in that order.
Actisense installation manual, User Manual v3.2; pp. 4–6 for power and wiring, pp. 8–11 configuration, p. 12 specifications. The original PDF is retained in the marine source ledger. The drawing represents the identified electrical interfaces; it does not simulate the equipment’s mechanical performance, radio signals or fluid system. Unpublished connector ampacity and startup current remain unspecified.
Build it out
Add NGW-1-ISO to your diagram, then connect your batteries, chargers and loads. Crimp calculates cable sizes and checks the connections as you draw.
Every cable you draw there is sized against ABYC E-11, from the same tables as the reference on this page.
Technical reference
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
NMEA 2000
nmea2000
signal · bidi
NMEA 0183
nmea0183
signal · bidi
A dash means a current rating is not specified here.
Method & provenance
Manufacturer specifications describe the equipment. Crimp calculates cable results from the circuit and assumptions you enter.
From the maker
Manufacturer, model, ratings and which terminal does what come from the catalog. A newer revision, or the nameplate on the unit in your hand, can say something different — when it does, the nameplate wins.
ABYC E-11
Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. The run length and the current above are what drive the result. Crimp doesn't know how warm your space gets; draw the cable inside an engine-bay zone on the canvas and it sizes for the heat.
Next step
Open this example as a new project. Add your equipment and cable lengths, then review the sizing and checks for your setup.