The PDM25 V2 is the newest PDM (Power Distribution Module) from Hardwire Electronics, a natural update to the outgoing PDM25 V1. With new features such as High/Low side outputs, 9 Axis IMU, improved CAN bus and more.  
 
A PDM is a device used to replace conventional relays and fuses in a vehicle electrical system. The Hardwire Electronics PDM25 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
PDM25
4x DT/AT Connectors + Contacts + Wedgelocks
1x M8 Ring Terminal
1x Ring Terminal Cover
USB Flash Drive with Pro PDM Configurator Software and Instruction preloaded
2m USB Cable
Printed A4 instruction manual
2x Hardwire Electronics Stickers
 
Technical Specification
General
 
Size
200 x 160 x 54 mm
Weight
690g
Operating Temperature
-55 – 90C  [ -67 – 194 °F ]
Construction
Glass Fibre reinforced plastic
IP Rating
IP67 Water and Dust Ingress Protection
Connectors
4x DT/AT
 
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
12-bit or 0.01V
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 permanent 200K Pull-up and 40K 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 80A peak, 20A continuous (Pin-limited to 13A @125degC), with reverse current protection.
21 high side outputs 80A peak, 20A continuous (Pin-limited to 13A @125degC)
Combined
120A 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.
 
CAN Bus
 
Interface
1x CAN2.0A/B ports 
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