1. Introduction
enLink Status-L Water Leak Sensor helps protect your critical infrastructure from water related damage
which could be caused by issues like faulty HVAC systems, leaks in pipes and adverse weather conditions.
The unit detects the presence of water using a special conductive water detection cable. The leak detection
sampling interval and detection thresholds can be user configured for the application. Adaptive LoRaWAN
transmission interval immediately notifies a detection event together with regular “heartbeat”status
messages for assurance that the system is operating correctly.
2. Configuration
enLink LoRaWAN devices are configured using OTAA (Over-the-Air-Activation).
OTAA is the most secure way to connect a device to the LoRaWAN network. In OTAA, the device performs a
Join-procedure with the network, during which a dynamic DevAddr (device address) is assigned and security
keys are negotiated with the device.
The OTAA configuration requires the following parameters to be correctly set:
•DevEUI: End-device Identifier. It is unique for every device and is set at device manufacture.
•AppEUI: Application Identifier. Used to identify the end application.
•AppKey: Application key. Used to create the session keys.
*Note: In LoRaWAN 1.1, AppEUI was renamed to JoinEUI.
For many applications Synetica can supply enLink Status with the AppEUI and AppKey pre-configured, so
providing the LoRa gateway has the matching values, the join process will happen automatically once the
Status unit is in wireless range and switched on.
The DevEUI is always set at device manufacture and is unique. The device AppEUI and AppKey can easily be
set via the USB connection if required and the process is detailed later in this document.
