RAKwireless RAK7249 Configuration Manual page 12

RAK7249/58
Automatic Data Recovery
This is an important feature that came with the r176 Firmware update. It allows for LoRa
Frames to be store on the SD card (provided there is one in the slot), if the LoRa Network
Server is unavailable. Upon restoring the connection those buffed messages will be
forwarded so no data will be lost. This is done in blocks of 8 (FIFO), until all are cleared from
the buffer.
LoRa Gateway MQTT Bridge:
By choosing this option, you make the Gateway act as a bridge to the MQTT Broker, which
is hosted somewhere separate. You need to configure the Gateway to point to the correct
address of the MQTT broker
Built-in LoRa Server:
In case you require an integrated solution where the LoRa Network Server is hosted on the
gateway itself you choose this option. The configuration of the LoRa MQTT Bridge itself is
done in a separate section of the configuration UI, which is discussed in Paragraph 3.3.2
Beacon Setup
In the case of Class B LoRa devices, you need to have a beacon in order to synchronize
downlink message windows. Thus, you have to configure its parameters: Frequency
Channel, SF, Bandwidth, Tx Power, etc. Make sure you adhere to the LoRa Alliance
recommendations.
Packet Filter
By enabling this functionality, you can filter incoming traffic and only forward packets from
the desired nodes in order to optimize bandwidth usage over backhaul. You can filter by
OUI or Network ID by whitelisting.
The Enable Auto Filter slider allows nodes to be automatically dropped in accordance with a
set of parameters. One can set threshold values for Discard Period, Join Period, Join
Interval, and Join Count (1 and 2 for Join Interval and Join Period respectively).
GPS Information
In case, you want to enter the GPS parameters for the Gateway manually.
Frequency Plan
This is a part of the page, common for all gateway from the RAK72xx series, however
depending on the number of Concentrator modules installed there are variations. The
difference when there is a second Concentrator is that first it has to also be configured, and
second only the fields for the central frequencies for Radio 0 and Radio 1 need be set.
You can directly import a whole frequency plan via the Import Frequency Plan Template
drop down menu. Alternately you can set the frequencies yourself.
There are two mode for setting the frequencies:
RAK LoRaWAN Industrial Gateway Configuration Guide
12