Technical information about
the MEULUM DC-PLC lighting control system

The MEULUM DC-PLC lighting control system is a SELV* (48V DC) network that uses a
‍single two-wire cable to deliver power and transmit control signals to LED fixtures simultaneously. The system offers the reliability of a wired connection and the flexibility of customizable control scenarios, while minimizing cabling.

* Safety Extra Low Voltage

The maximum number of LUs in the system is 10.

The distance from the CU to the LU: up to 400 ft / 120 m (tested up to 700 ft / 210 meters).

The LU is connected in parallel to the system bus. By default, the LU is connected to the system bus with built-in wires using WAGO terminals (T-connection).

A revolution in LIGHTING WIRING

General bus characteristics

Voltage: 48V DC
Maximum power in continuous operation mode: 400W
Required: 18 AWG double stranded wire

The system bus can be heterogeneous and consist of several sections of wire (up to 30 sections) connected together. The cross-sectional area of the wires in all sections must be sufficient to carry a current of 10 A continuously.

The wires of the system bus can be connected in any way that ensures a reliable connection when carrying a 10 A current (e.g., soldering, welding, twisting, terminal block) and provides electrical insulation for the bus wires (to prevent short circuits).

The system bus can have up to five nested branches (tested). The length of the branch can be any (as long as the total maximum distance from the LU to the CU is not exceeded).

The branch leads from the bus to the LU can be of any length (within the total maximum distance from LU to CU). The leads can have any safe method of connection to the system bus.

Lighting unit characteristics

Maximum input power: 80W (120W*)

Output

Voltage for all channels: 24V with PWM (dimming for each channel is possible)
PWM frequency: 1250Hz
Maximum long-term power for each channel:
• one channel use = 48W
• two channels simultaneously use = 40W (48W*)
• three channels simultaneously use = 26W (40W*)
• four channels simultaneously use = 20W (30W*)
• five channels simultaneously use = 16W (24W*)
Each output can function as a mechanical switch equivalent for external AC relays. For example, to control traditional AC luminaires.

Input

Input channel: 3 (dry-contact). It's possible to connect active sensors with a 5-volt power supply (using an additional built-in power source).
The device can work with mechanical switches, buttons and sensors with different algorithms (control any selected lights in the network):
• Momentary: Push-for "ON" or Push-for "OFF".
• Toggle Switch: A flip switch with one state for "ON" and one state for "OFF".
• Edge Switch: Changes state on every hit.
• Activation Switch (for motion sensor): Any input turns "ON" and resets Auto OFF timer.

General

Operating temperature: 40 to 115 °F
Storage temperature: -15 to 150 °F
Relative humidity: 0 to 95% non-condensing

Device power consumption: < 1 W

* - Coming in a future version

Central unit characteristics

The central unit is connected to the bus between the power supply and the bus.

Interfaces

Wire
• Modbus RS-485*
• DALI*
‍
Wireless
• WiFi 4 (802.11 b/g/n) 2.4GHz
• Bluetooth Low Energy (BLE)*
• ZigBee*

Remote control

The system has its own web interface for control and configuration from any device in the home WiFi network (via a browser).
The system can be integrated into custom Smart Home systems via various interfaces:
• MQTT
• web-API

Mobile app: no. The system is controlled via a browser.

General

Operating temperature: 40 to 115 °F
Storage temperature: -15 to 150 °F
Relative humidity: 0 to 95% non-condensing

Device power consumption: < 1 W

* - Coming in a future version

More info

We design, engineer, manufacture, and sell lighting control systems and lighting fixtures.

101 S Tryon St, Charlotte, NC

info @ meulum.com
+1 484 445 8413

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