The PDM28 is the newest PDM (Power Distribution Module) from Hardwire Electronics, the product of over 3 years of development and testing.

A PDM is a device used to replace conventional relays and fuses in a vehicle electrical system. The Hardwire Electronics PDM28 takes inputs from physical switches, analogue voltages, or the CAN bus, and provides power to different electronic devices such as radiator fans, fuel pumps and head lights. The current being drawn from each connected device is continuously monitored. If the measured current is too high due to a fault, the PDM switches off the respective output to prevent further damage to the wiring loom or the connected device. The PDM can then retry the output to see if the fault has cleared.

Product Details
Included
- PDM28
- 2x DTM Connectors + Contacts
- 2x DT Connectors + Contacts
- 1x DTP Connector + Contacts
- 2x Radlok Connectors
- USB Flash Drive with Pro PDM Configurator Software and Instruction preloaded
- 2m USB Cable
- Printed A4 instruction manual

Technical Specification

General
Size	318x124x58 mm
Weight	1640g
Operating Temperature	-55 – 90C [ -67 – 194 °F ]
Construction	Machined Aluminium Enclosure, Media Blasted and Anodised Black
IP Rating	IP67 Water and Dust Ingress Protection
Connectors	2x 12-Pin DTM, 2x 12-Pin DT, 1x 4-Pin DTP
Indicator LEDs	50x RGB LEDs
Inputs
Type	16 analogue inputs which can also serve as digital inputs.
Measurement Range	Each input can measure voltages between 0-28V, independent of the battery voltage.
Measurement resolution	16-bit or 0.001V
Frequency Measurement	Automatic frequency measurement up to 300Hz
Protection	Fully protected for input voltages between -24V to 40V.
Pull Up/Down Resistors	Each input has a software selectable 10K Pull-up or Pull-down resistor
Added Features	Configure as active high or low. Configurable Hysteresis voltage. Latching or momentary operation.
Outputs
Type	4 high/low side outputs 100A peak, 30A continuous, with reverse current protection. 6 high/low side outputs 80A peak, 20A continuous, with reverse current protection. 18 high/low side outputs 80A peak, 20A continuous
Combined	200A combined output maximum current
Output current control steps	100mA
Protection	Each output is overcurrent, overtemperature, load dump and reverse polarity protected.
Soft Start	PWM soft start can be enabled on outputs to limit inrush current.
PWM	Each output can be Pulse Width Modulated based on a user defined variable. This can limit the speed of radiator fans, fuel pumps, and dim lights. 1000Hz maximum PWM frequency
Added Features	Outputs can be configured to stay on for a specified time after the input is removed, useful for thermo-fans. Outputs can be retried multiple times after an over-current event is detected.
LIN Bus
	1x LIN Bus Port. Currently unsupported, enabled in future software update
CAN Bus
Interface	3x CAN2.0A/B ports (Bus 3 reserved for NIO Power Module Expansion)
Bus Speed	50, 100, 125, 250, 500, 1000 kbps
Termination Resistor	Both CAN bus ports have software selectable CAN termination resistors.
Input Stream	100x inputs, fully customisable variable parsing with bit masking, math functions, and compound CAN message filtering
Output Stream	100x Outputs, Fully customisable CAN frame construction with math functions
CAN Keypad
	Support for Blink Marine, Grayhill, Motec, Haltech and Marlin CAN keypads. Up to four keypads can be used at once.
Logging
Storage	128Mb of onboard flash storage for logging PDM data
Speed	1Hz to 50Hz
Viewing	Data can be downloaded and graphed via the Hardwire Electronics PDM configurator software or exported as a .CSV file and graphed in external software
Functions
Output Functions	Each Output can be switched with a user defined function.
Logical operators	AND, OR, NOR, XOR, NAND, NOR, >, >=, <, <=, Equal, Not Equal.
Maths Channels
	Fully customisable Maths Functions
Mathematical Operators	Mathematical Operators - Addition, Subtraction, Multiplication, Division, Modulus, Choose, Min, Max
Binary Operators	Binary Operators - AND, OR, XOR, Left Shift, Right Shift
Counters
	Configurable counters which increment, decrement, and reset based on user defined conditions
IMU
Rotation	3-axis rotational position measurement 0.1° resolution
Gyroscope	2000°/s 3-axis measurement
Accelerometer	-8g to 8g 3-axis measurement
PCB temperature	6-Zone PCB temperature measurement.
RTC
	Real Time Clock with battery backup for 30 days. Used to store the correct time and date for data logs.
USB
Type	USB 2.0 compliant with Mini-B
Driver	Integrated driver with Windows 10
PC App
Name	Hardwire Electronics PDM configurator software.
Compatibility	Windows 10 machines
Connectivity	Easy connection to the PDM with USB and windows integrated drivers. No unreliable USB-serial converter needed.

Power Distribution Panel Labels (Retro)

Description