IO Expander DTM – Haltech IO 12 Emulator IO expander for ECU installations requiring additional inputs and outputs beyond standard ECU capabilities. Emulates Haltech IO 12 box behavior with DTM connector configuration.What’s Included:– 1x PT Motorsport IO Expander DTM – 1x DTM12 half kit – 1x DTM6 half kit – 1x DTM4 half kit – 22x Terminals – Mounting hardwareKey Specifications:– 4x Analog inputs: 0-5V (12V tolerant input protection) – 4x Digital inputs: On/off state only, pull to ground (12V tolerant) – 4x Digital outputs: Low side switched, state or PWM (490Hz or 980Hz) – Output limits: 3A per channel, 7A overall limit – Pullup resistors: 1k ohm built-in (switchable via solder pads) – Mode selection: A or B mode via “AB” solder bridge (default: A mode)Configuration Details:Pullup resistors for analog inputs can be enabled by soldering across the relevant pads on the bottom of the board. The built-in pullup resistors are 1k ohm. Digital outputs support state or PWM modes at 490Hz or 980Hz frequency. No frequency drive capability – outputs are limited to state or PWM control.Digital inputs measure state only (on or off). No frequency measurement capability. Mode can be changed from IO Box A to B by soldering across the “AB” solder bridge on the board.Why Choose IO Expander:For ECU installations requiring additional inputs and outputs beyond standard ECU capabilities. Provides 4 analog inputs, 4 digital inputs, and 4 digital outputs when the ECU’s native I/O count is not sufficient for the installation. Enables monitoring of additional sensors and control of extra outputs without requiring a different ECU.ECU Compatibility:Compatible with Haltech (native support), Link ECU, MaxxECU, and ECU Master systems. Link, MaxxECU, and ECU Master require custom CAN bus coding. For non-Haltech ECUs, custom programming via Arduino may be required.Installation Note:Requires compatible ECU with expansion capabilities and proper configuration software.Use with ECU’s other then Haltech may require custom programming via Arduino. This project’s files can be found here. GITHUB FILE Each unit tested before shipping.NZ Wiring Stock: We list the item’s we stock in Petone, Wellington
