Integration overview¶
This section provides a top level view of the complete process of integrating the W-DALI Node module into a product.
Block diagram¶
A typical OEM integration may look like the block diagram below. The base OEM product has a IEC 62386-interface to which the LumenRadio W-DALI OEM module is connected together with some limited external circuitry for DALI interface and power supply. By introducing the W-DALI module, the external DALI-2 port and related protection circuitry may be removed to obtain a pure W-DALI device. Note that an internal DALI PSU is needed in this case. Optionally, the external DALI-2 port may be kept which will allow for connection of up to 9 additional DALI-2 units on a local bus, all kept individually adressable from the DALI-2 controller connected to the W-DALI Root.
Step by step¶
Given a base product with an existing DALI-2-interface, the replacement of the external DALI terminal interface with the LumenRadio W-DALI module could include the following steps:
- Provide a suitable 3.3V power supply. See Power supply recommendations for details.
- Provide interface circuitry between W-DALI module and IEC 62386 bus of host product. See reference designs section for details.
- Decide between internal and external PSU
- Decide if to keep external DALI terminal
- Integrate the W-DALI module on a host PCB. See Layout considerations for details.
- Perform compliance testing for market access
Common mistakes¶
The integration of the W-DALI Node module is straightforward, but for optimal RF performance it is important to follow the power supply and layout considerations. Failure to do so may result in inferior RF performance. Some important highlights to avoid the most common mistakes are shown below:
- The carrier PCB shall be of the recommended type and have a proper ground plane
- Product enclosure and carrier PCB shall adhere to the clearance recommendations
- Product enclosure shall not block radio-signals
- Power supply pins shall have sufficient decoupling