Add modular inputs and outputs to any Reliable Controls® MACH-ProCom™ or MACH-ProSys™ controller with this flexible, general purpose input/output expansion module. Each MACH-ProPoint™ expansion module features 12 universal inputs, 8 outputs, and requires 24 VAC/VDC power. A maximum of 8 expansion modules can be connected to a single MACH-ProCom™ controller. Up to 7 expansion modules can be added to the MACH-ProSys™ controller. Each controller can support a maximum total of 160 I/O points. The maximum number of inputs permitted is 128. The maximum number of outputs permitted is 64. Each expansion module has a separate isolated 24 VAC/VDC power supply for powering peripheral devices. The expansion module is also available with optional HOA (Hand/Off/Auto) switches for convenient field override.


Superior Design

  • Status LED per I/O, glows proportional to voltage level
  • Robust, 45º screw terminal
  • Reversible door flips to conveniently show points list

12 Inputs

  • Universal ranges

8 Outputs

  • Outputs 1-4 are wired to unpopulated sockets
  • Outputs 5-8 are universal (no sockets)
  • Output modules are sold separately


  • The MACH-ProPoint™ conveniently mounts in the same enclosure as the MACH-ProCom™ and MACH-ProSys™ or mounted at a distance in separate enclosures in the same space


  • 5 years

Supply Voltages

  • 24 VAC/VDC, 75 VA max.


  • Dedicated EIA-485 I/O-Net port for communications to host MACH-ProCom™ or MACH-ProSys™ controllers
  • Baud fixed at 76.8 kbps

Universal Inputs

  • 12 universal inputs
  • 12-bit ADC
  • Analog: 0-5 VDC, 0-10 VDC, 4-20 mA, thermistor
  • Digital: dry contact
  • Impedance:
    1 M O on 0-5 VDC range
    1 M O on 0-10 VDC range
    250 O on 4-20 mA range
    20 kO pull-up for thermistor/dry contact range
  • 150 Hz pulse counting (supports flow meters)
  • 24 VAC over-voltage protection

8 Outputs

  • 12-bit DAC
  • First four outputs are socketed to accomodate relay, TRIAC, or universal modules (output modules sold separately)
  • Analog: 0-12 VDC
  • Digital: 0-12 VDC
  • Manual ON provides adjustable 0-12 VDC (HOA only)
  • LED indicator (glows proportionally)
  • Output power: 75 mA @ 12 VDC
  • 24 VAC over-voltage and short protection

Peripheral Power

  • Onboard variable 15-24 VDC power supply providing up to 200 mA of DC power to peripheral devices (if powered with 24 VDC, the maximum voltage output is 22 VDC)


  • 17.9 cm L x 13.7 cm W x 3.84 cm H
    (7.02″ L x 5.39″ W x 1.51″ H)


  • #8 clearance holes on 15.6 cm L x 11.0 cm W (6.14″ L x 4.31″ W)
  • Screw depth 25 mm (1″)


  • 1.0 kg (2.1 lb.)

Ambient Limits

  • Operating: -20 ºC to 55 ºC
    (-4 ºF to 131 ºF)
  • Shipping: -40 ºC to 60 ºC
    (-40 ºF to 140 ºF)
  • Humidity: 10% to 90%
    RH non-condensing

Universal Module - Front and Back Views

Universal Output Modules
The Universal Output Module (UM) provides a standard Reliable Controls® 0-12 VDC 75 mA output. Built-in overload and short-circuit protection. Modulating or digital range configured using RC-Studio® 2.0. Sold in packages of ten.

Triac Module - Front and Back Views

Triac Output Modules
The Triac Output Module (TM) is a single normally open contact for 24 VAC loads only, 0.5 A. Ideal for switching 24 VAC control circuit loads found in packaged HVAC systems, and 24 VAC two-position or floating point actuators. Sold in packages of 10.

Relay Module - Front and Back Views

Relay Output Modules
The Relay Module (RM) is a Single Form C SPDT dry contact, 24 VAC/DC, 0.5 A. A jumper is provided to select normally open or normally closed operation. Ideal for switching low current and/or DC loads. Sold in packages of 10.