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Product lines

Two systems and two modules

PACsys governs the guest room — power, access and the housekeeping cycle. TCMsys governs the plant that keeps it comfortable. Both are designed to be bought separately and to work better together. Tnode and Knode take the same engineering down to a single air-conditioning unit, for buildings that do not need a whole system.

Power & access control

PACsys ™

The system that runs the guest room. Power state, access, the housekeeping cycle and per-room device health, for every room on the property.

~300
Properties live
50+
HMS / PMS vendors
20 yrs
In production
  • Integrates with 50+ hotel and property management systems
  • Independent control of AC, lighting and secondary loads
  • Keycard-driven power for the AC and every switched load
  • Maintenance time extended only on approval
  • Notifications the moment an event fires
  • Per-room health across every floor controller on the bus
  • Room power and access tied to the guest lifecycle

Interfaces

  • Inbound webhook
  • REST API
  • WebSocket push
  • Outbound callbacks
  • Bearer token / IP allow-list
Explore PACsys
HMS / PMS webhook · API Server on site or hosted Dashboard notified on events Floor controller in the floor distribution board one per floor GUEST ROOMS ON THAT FLOOR — EACH LOAD SWITCHED INDEPENDENTLY Lighting per circuit AC switched Sockets where wired Other loads as configured PACsys AT series — keycard control · optional governs whichever of those loads you choose
Part of PACsys

PACsys Network

The multi-property layer. Every property you operate on one live dashboard, with fleet firmware rollouts, per-property data isolation and bus-level diagnostics from an engineer’s phone.

Detail

Centralised AC control

TCMsys ™

Centralised air-conditioning control and energy management, for AC and non-AC rooms alike, across mixed manufacturers on one wired bus.

2,048
Rooms per site
8
AC brands
<1 s
Event to screen
  • Eight AC brands, mixed on the same segment
  • Occupancy setback that runs without the server
  • Guest requests — DND, make my room, laundry
  • Door alarms and predictive maintenance
  • REST, WebSocket, Modbus and PMS integration
  • AC and non-AC rooms on the same system

Interfaces

  • REST API
  • WebSocket push
  • Modbus server
  • PMS webhook
  • MQTT
Explore TCMsys
Coordinator one per site · REST · Modbus upward bus Sub-Gateway polls its segment Sub-Gateway polls its segment Sub-Gateway polls its segment TCM Module ×64 TCM Module ×64 TCM Module ×64 AC units mixed brands AC units mixed brands AC units mixed brands 32 segments · 2,048 rooms · each layer runs on its own
Part of TCMsys

TCM Module

The room device. Direct AC control, keycard, do-not-disturb, make-my-room and laundry inputs, live room temperature, and pre-arrival comfort driven by the front desk.

Detail

Single-unit modules

When you do not need a whole system

Most buildings that run Mitsubishi air conditioning are not going to install a wired bus and a coordinator. These two put the same control on a single indoor unit — one for commercial spaces, one for guest rooms.

Mitsubishi AC control · commercial

Tnode ™

A module behind the air conditioner that puts the unit on your phone — control, schedules, temperature history and maintenance alerts. Local control keeps working without the internet.

Offices, retail, clinics

  • Mitsubishi MBus, one module per indoor unit
  • Schedules per unit or per zone
  • Months of history stored on the device
  • No third-party cloud in the path

Interfaces

  • Local HTTP API
  • mDNS discovery
  • MQTT
  • Mobile app
Phone local no internet TES service when away Tnode schedules · history stored on the module MBus Mitsubishi indoor unit Local control keeps working when the line to the outside world does not
Explore Tnode

Mitsubishi AC control · hotels

Knode ™

Keycard-driven AC control for guest rooms, with the do-not-disturb, make-my-room and laundry buttons wired into the same module. The TCM Module sold on its own.

Hotels on Mitsubishi units

  • Occupancy setback stored in the room
  • Guest request buttons that reach housekeeping
  • Guest remote keeps working
  • Extends into full TCMsys without rewiring

Interfaces

  • MBus
  • Keycard & dry contacts
  • TCMbus (RS-485)
  • REST when extended
Keycard DND Make my room Laundry Knode policy stored in the room MBus Mitsubishi indoor unit TCMbus — later extends into full TCMsys
Explore Knode

What we actually build

Four disciplines, one company

A building control system fails at the seams between hardware, firmware, software and operations. We own all four, which means there is nobody to point at when something does not work.

Hardware

Room controllers, gateway boards and starter controllers designed in-house — protection circuits, isolation, and the environmental and certification work that comes with putting a board behind a guest-room wall.

Firmware

Embedded controllers and gateway firmware, our own wired bus protocol, and field-safe over-the-air updates that will not brick a device in an occupied room.

Software

On-premises services, site dashboards, integration endpoints and installers — packaged so a property’s own IT team can run them if they want to.

Cloud

Multi-tenant platform, real-time portals, licensing and fleet management, operated across roughly 300 live properties.

Talk to an engineer, not a salesperson

Tell us how many properties and how many rooms. We will tell you what a deployment looks like, what it integrates with, and what it costs to run.

Request a demo sales@tes.ind.in