Dragino LT Series User Manual

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LT Series LoRa IO controller User Manual 8 / 42
1.5 Hardware Variants
Model
Photo
Description
LT33222-L
 3 x Digital Input
 3 x Digital Output
 2 x Relay Output (5A@250VAC / 30VDC)
 2 x 0~20mA Analog Input (res:0.01mA)
 2 x 0~30V Analog Input (res:0.01v)
 1 x Counting Port
Model
Photo
Description
LT22222-L
 2 x Digital Input (Bi-direction)
 2 x Digital Output
 2 x Relay Output (5A@250VAC / 30VDC)
 2 x 0~20mA Analog Input (res:0.01mA)
 2 x 0~30V Analog Input (res:0.01v)
 1 x Counting Port
1.6 Firmware Change log
LT Image files
Image v1.4.2
 Update LoRaWAN stack to DR-LWS-003
(http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/DR-LWS/&file=chang
elog )
 Fix DO / Relay state lose after reboot. Now After reboot, the DO/Relay will keep the same
state as before.
Image v1.4.1
 Fix watchdog bug. This bug cause some device will un-stop reboot with the v1.4 firmware.
Image v1.4
 Add hardware support for LT-22222-L
 Update LoRaWAN stack to DR-LWS-002
 Change to Class C by default
 Add Software Watchdog
 Re-construct Payload format, use the new decoder for v1.4.
 Add Downlink command to pre-set count number
 First bug for endless loop when TDC is too small

Dragino LT Series Specifications

General

Brand	Dragino
Model	LT Series
Category	Controller
Language	English