Dragino LT Series User Manual

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LT Series LoRa IO controller User Manual 38 / 42
7
924.8
925
925.2
925.4
925.6
925.8
926
926.2
Channel 48-55
8
926.4
926.6
926.8
927
927.2
927.4
927.6
927.8
Channel 56-63
Channels(500KHz,4/5,Unit:MHz,CHS=0)
915.9
917.5
919.1
920.7
922.3
923.9
925.5
927.1
Channel 64-71
5.4 How to set up LT to work with Single Channel Gateway such as LG01/LG02?
In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
Assume we have a LG02 working in the frequency 868400000 now , below is the step.
Step1: Log in TTN, Create an ABP device in the application and input the network session key
(NETSKEY), app session key (APPSKEY) from the device.
Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then
match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by
TTN.
Step2: Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT
commands:
123456 Enter Password to have AT access.
AT+FDR Reset Parameters to Factory Default, Keys Reserve
123456 Enter Password to have AT access.
AT+NJM=0 Set to ABP mode
AT+ADR=0 Set the Adaptive Data Rate Off
AT+DR=5 Set Data Rate (Set AT+DR=3 for 915 band)
AT+TDC=60000 Set transmit interval to 60 seconds
AT+CHS=868400000 Set transmit frequency to 868.4Mhz

Dragino LT Series Specifications

General

Brand	Dragino
Model	LT Series
Category	Controller
Language	English