The Razor PDM is a programmable power distribution module from Link Engine Management that replaces traditional fuse and relay panels in motorsport and performance vehicle wiring. Four high-power outputs handle fuel pumps, radiator fans, and high-current actuators at 25 A continuous each; eight ADIO pins handle lower-current devices and sensor inputs. Over-current protection on every output trips and auto-resets — no fuse replacement on track. The sealed CNC aluminium enclosure operates from 6–24 V, covering both 12 V street and 16 V lithium racing systems.
The Razor PDM can operate in three modes: as a CAN output expander with a Link G4+ or G4X ECU, as a CAN keypad controller without any ECU, or as a fully standalone PDM using its own input-to-output logic. Up to four Razor PDMs can be daisy-chained via CAN for large or complex builds.
Technical Specifications
| Property | Value |
|---|---|
| SKU | 135-1000 |
| High-power outputs | 4 × 25 A continuous, 70 A peak; high-side, low-side, or H-bridge pair; PWM to 10 kHz |
| ADIO outputs (max) | 8 × 8 A; high-side drive, PWM to 10 kHz; over-current protected |
| ADIO inputs | All 8 ADIO pins can be analogue or digital/switched input; max input 12 V; max measurable 5 V |
| ADIO 5–8 input modes | PWM, frequency, duty cycle, speed — up to 10 kHz |
| Software pull-ups | 4.7 kΩ to 5 V, software-controlled per pin |
| Sensor supply | 5 V output + sensor ground |
| Total continuous current | 100 A |
| Total peak current | 160 A (non-repetitive) |
| Supply voltage | 6–24 V (12 V and 16 V systems) |
| Quiescent draw | <300 mA (no outputs active) |
| CAN bus | Yes — user-configurable bit rate |
| USB | USB-C (configuration and logging via PDM Link software) |
| Connector | 26-pin Superseal waterproof automotive |
| Enclosure | CNC machined sealed aluminium |
| Status indicators | LED per output + power + temperature |
| Operating temperature | −40°C to +80°C |
| IP rating | Water resistant (no official IEC IP rating published) |
| Dimensions | 103.6 × 93.4 × 43.2 mm |
| Weight | 475 g |
| Software | PDM Link (free, Windows) + PCLink (when used with Link ECU) |
Connector Pinout — 26-Pin Superseal
Each high-power output uses two pins in parallel for current capacity.
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | PWR OUT 2 | 14 | PWR OUT 1 |
| 2 | N/C | 15 | A/D I/O 2 |
| 3 | CAN H | 16 | A/D I/O 4 |
| 4 | IGN SW | 17 | A/D I/O 6 |
| 5 | SENSOR 5 V | 18 | A/D I/O 8 |
| 6 | SENSOR GND | 19 | PWR OUT 4 |
| 7 | PWR OUT 3 | 20 | PWR OUT 1 (parallel) |
| 8 | PWR OUT 2 (parallel) | 21 | A/D I/O 1 |
| 9 | N/C | 22 | A/D I/O 3 |
| 10 | CAN L | 23 | A/D I/O 5 |
| 11 | SENSOR 5 V | 24 | A/D I/O 7 |
| 12 | SENSOR GND | 25 | N/C |
| 13 | PWR OUT 3 (parallel) | 26 | PWR OUT 4 (parallel) |
Operating Modes
| Mode | Setup | Typical application |
|---|---|---|
| ECU Output Expander | Razor PDM on CAN bus with Link G4+ or G4X ECU; configured in PCLink CAN setup | Race cars, time attack — ECU controls PDM outputs via CAN Aux channels |
| CAN Keypad Controller | No ECU required; keypad inputs drive output logic | Campervans, overland 4×4, jetboats — keypad replaces toggle switches |
| Standalone PDM | Inputs map to outputs without ECU or keypad; uses PDM presets | Kit cars, classic car EFI conversions — clean smart fusing without ECU |
What You Can Do With It
- Replace an entire fuse and relay panel with a single sealed unit — no physical fuse replacement after an over-current trip; the output auto-resets
- Drive variable-speed fuel pumps and cooling fans via PWM output at up to 10 kHz
- Pair two high-power outputs in H-bridge configuration to drive bidirectional servo actuators, motorised valves, and electronic throttle bodies
- Configure output trigger logic using PID control, maths channels, and Boolean logic expressions — programmable directly in PDM Link without custom firmware
- Monitor real-time current draw per channel on track via USB logging or CAN telemetry to a connected dash or ECU
- Support 16 V lithium racing battery systems — the 6–24 V supply range covers both 12 V street and 16 V motorsport systems
- Chain up to four Razor PDMs via CAN for large vehicles or complex multi-zone power builds
- Interface with Blink Marine CAN keypads for physical control without rotary switches or toggle panels
Link ECU Integration — PCLink Setup
To configure the Razor PDM as a CAN output expander with a Link G4+ or G4X ECU:
- In PCLink: navigate to ECU Controls → CAN Setup
- Select the Razor PDM from the Mode drop-down
- Assign a free CAN ID (the next 8 IDs after the chosen ID must also be free)
- Set transmit rate to 20 Hz (CAN Aux data rate from ECU to PDM)
- PCLink version 6.23 or later required; update PDM firmware via PDM Link software first
In the Box
- Razor PDM unit
- 26-pin Superseal connector kit
- USB-C cable
- Insulation boot
- Ring terminals
- Quick start guide
- PDM Link software — free Windows download from linkecu.com
Frequently Asked Questions
Can the Razor PDM be used without a Link ECU?
Yes. The Razor PDM has three preset operating modes, one of which (Standalone PDM Preset) requires no ECU — inputs directly control outputs using programmable logic in PDM Link software. A second mode (CAN Keypad Preset) allows a CAN keypad to control outputs without any ECU. No Link ECU is required for either of these modes.
How many outputs does the Razor PDM have and at what current?
Four high-power outputs at 25 A continuous each (70 A peak) — suitable for fuel pumps, fans, and high-current loads. Eight ADIO pins at 8 A each — for lower-current devices, solenoids, and relays. Total system current is 100 A continuous / 160 A peak. All outputs are individually over-current protected.
What happens when an output trips?
The Razor PDM trips the affected output and attempts an auto-reset. No fuse replacement is needed. Current trip thresholds are not user-adjustable for the ADIO outputs; the 8 A limit is hardware-defined and the output wire must be rated accordingly.
Is the Razor PDM compatible with 16 V racing battery systems?
Yes. The supply voltage range is 6–24 V, covering both 12 V and 16 V lithium battery systems used in motorsport. No modification or external voltage regulator is required.
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