Mitsubishi Electric Domestic, Mr.Slim and City Multi to BACnet MSTP Interface
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Mitsubishi Electric Domestic, Mr.Slim and City Multi to BACnet MSTP Interface

Product code: INBACMIT001I100
The Mitsubishi Electric-BACnet gateway allows fully bi-directional communication between Mitsubishi Electric Domestic, Mr.Slim and City Multi Air Conditioner units and BACnet or MSTP networks.

The previous part number for this item was ME-AC-BAC-1L, IBBACMIT001I100

Price (Excluding GST)



  • BTL mark ensures full interoperability with BACnet devices.
  • Support only BACnet MS/TP.
  • Configuration from onboard DIP-switches.
  • Quick and easy installation (plug and set the DP-SW).
  • External power not required.
  • Simultaneous control of the AC unit by the IR remote controller and by BACnet IP or MS/TP.
  • Reduced dimensions 93 x 53 x 58 mm.
  • Mountable on DIN rail, wall, or even inside the indoor unit in some models of AC.
  • Abstraction of Air Conditioning unit properties and functionalities as fixed BACnet Objects.
  • Occupancy function allows energy savings. Costs related to HVAC systems in a building are one of the highest and this type of functions allow to reduce them.
  • Total control and monitoring of the AC unit from BACnet, including AC unitÕs internal variables, running hours counter (for filter maintenance control) and error indication.


The gateway is wired directly to a Mitsubishi Electric indoor unit. This allows not only the control of the main AC functions such as operating mode, fan speed, temperature setpointÉbut the monitoring of errors, alarms and some internal variables.


The product can be installed and set up in a really short time. ItÕs only a matter of wiring the gateway to the AC unit and configure the DIP-SW accordingly. No configuration software and no power supply are required.

Technical Details


Enclosure: Plastic, type PC (UL 94 V-0). Dimensions: 93mm x 53mm x 58mm. Light Grey. RAL 7035

Weight: 85g.

Mounting: Wall. DIN rail EN60715 TH35.

Terminal wiring (for low-voltage signals):

  • Per terminal: solid wires or stranded wires (twisted or with ferrule)
  • 1 core: 0.5...2.5mm2
  • 2 cores: 0.5...1.5mm2
  • 3 cores: not permitted

BACnet MS/TP port:

  • 1 x EIA485 Plug-in screw terminal block (2 poles + GND) with 120 ½ resistor termination and polatization selectable by switch.

AC unit port:

  • 1 x Specific connector Specific cable included

Switch 1 (SW1): 1 x DIP-Switch for Air Conditioner Unit + Bacnet baud rate

Switch 2 (SW2): 1 x DIP-Switch for Bacnet MAC address + temperature magnitude (oC/oF).

Switch 3 (SW3): 1 x DIP-Switch for extra functions

Operational temperature: 0¡C to +70¡C

Stock Temperature: -20oC to +85oC

Operational humidity: <95% RH, non-condensing

Stock Humidity: <95% RH, with no condensation

Isolation Voltage: 1500 VDC

Isolation resistance: 1000 M½

Protection: IP20 (IEC60529)

LED indicators: 1 x Onboard LED - Operational status



Technology BMS
Mounting DIN Rail
IP rating IP20
Mounting Width 4MW

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