Load
See the Peplink MAX BR1 Mini HW3 connection points and wiring example. Open the diagram in Crimp to add your equipment and plan the cables between them.
Open this example as a new project. Use your own parts and cable lengths to make the plan yours.
Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.
3.3 ft one way
12 V system
Sized against ABYC E-11. The design current is the part's continuous draw. The length is one way; voltage drop includes an equal-length return.
The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.
10–30 V DC input. The 1.5 A load is calculated from 18 W maximum at 12 V; 2 A adapter capacity is not a fuse prescription. Follow the four-pin connector-face map. IGN and I/O are optional controls, not supply rails; LAN 1 PoE is standards-based. Manufacturer installation manual
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.
10–30 V DC input. The 1.5 A load is calculated from 18 W maximum at 12 V; 2 A adapter capacity is not a fuse prescription. Follow the four-pin connector-face map. IGN and I/O are optional controls, not supply rails; LAN 1 PoE is standards-based. Manufacturer installation manual
Edit this wiring exampleInstallation notes
Guidance for this model, with sources linked beside the relevant advice.
Verified against the manufacturer's documentation (rev. BR1 Mini hardware reference guide 2603 v01; product sheet 2601 v54), checked 2026-10-01. Manufacturer documentation →
This entry is the MAX BR1 Mini hardware revision 3. The archived manufacturer product sheet gives 10–30 V DC input, 13 W nominal and 18 W maximum. The catalog's 1.5 A is a calculated 18 W / 12 V planning value, not measured current at every supply voltage. Hardware revision and modem configuration must match the installed router.
The hardware guide, page 3, shows the router's connector face: I/O at upper left, IGN I/P at upper right, DC negative at lower left and DC positive at lower right. A loose mating plug viewed from its wire side is mirrored, so orient it from the manufacturer's drawing before crimping. Only the lower DC pair is the supply. The ignition and I/O markers are control signals, not extra power inputs or grounds.
The supplied 12 V / 2 A adapter rating describes adapter capacity, not a prescribed battery fuse. The router also supports standards-based 802.3at PoE input on LAN 1. Do not inject passive battery voltage into Ethernet pairs. For a battery installation, use the rated DC connector or a properly specified PoE system, and treat the upstream cable protection as a separate design task.
Keep the router and connector dry, provide strain relief and fit the intended antennas to their correctly labelled connectors. Route the DC supply with enough cross-section to maintain voltage at the router during other equipment's startup. If ignition sensing is used, follow the applicable Peplink firmware and harness instructions; the symbol does not implement an ignition-delay circuit by itself.
Check DC polarity with the connector unplugged, then confirm stable startup and operation on the selected power source. Configure the SIM and network, change default administrative access, and verify a real data session. Test any ignition or redundant-power behaviour separately. A successful Wi-Fi connection does not establish that the vehicle's shutdown or low-voltage policy is configured correctly.
Build it out
Add MAX BR1 Mini HW3 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.
DC IN +
pos
positive · input
DC IN −
neg
negative · input
IGN I/P
ign
signal · bidi
I/O
io
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 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. 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.