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Author

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1		-XWiki.Edwin
	1	+XWiki.ting

Content

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59	59
60	60	== 1.2 Specifications ==
61	61
	62	+(((
	63	+
	64	+
62	62	(% style="color:#037691" %)**Hardware System:**
	66	+)))
63	63
64		-* STM32L072xxxx MCU
65		-* SX1276/78 Wireless Chip
66		-* Power Consumption:
	68	+* (((
	69	+STM32L072xxxx MCU
	70	+)))
	71	+* (((
	72	+SX1276/78 Wireless Chip
	73	+)))
	74	+* (((
	75	+(((
	76	+Power Consumption:
	77	+)))
67	67
68		-* Idle: 4mA@12v
69		-* 20dB Transmit: [[34mA@12v>>mailto:34mA@12v]]
	79	+* (((
	80	+Idle: 4mA@12v
	81	+)))
	82	+* (((
	83	+20dB Transmit: 34mA@12v
	84	+)))
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70	70
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	88	+
71	71
72	72	(% style="color:#037691" %)**Interface for Model: LT22222-L:**
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73	73
74		-* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
75		-* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
76		-* 2 x Relay Output (5A@250VAC / 30VDC)
77		-* 2 x 0~~20mA Analog Input (res:0.01mA)
78		-* 2 x 0~~30V Analog Input (res:0.01v)
79		-* Power Input 7~~ 24V DC.
	93	+* (((
	94	+2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
	95	+)))
	96	+* (((
	97	+2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
	98	+)))
	99	+* (((
	100	+2 x Relay Output (5A@250VAC / 30VDC)
	101	+)))
	102	+* (((
	103	+2 x 0~~20mA Analog Input (res:0.01mA)
	104	+)))
	105	+* (((
	106	+2 x 0~~30V Analog Input (res:0.01v)
	107	+)))
	108	+* (((
	109	+Power Input 7~~ 24V DC.
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80	80
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81	81
82	82	(% style="color:#037691" %)**LoRa Spec:**
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83	83
84		-
85	85	* (((
86	86	(((
87	87	Frequency Range:
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1631	1631	== 3.7 LEDs Indicators ==
1632	1632
1633	1633
1634		-(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1635		-|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
	1667	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	1668	+|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:470px" %)**Feature**
1636	1636	|**PWR**|Always on if there is power
1637	1637	|**SYS**|(((
1638	1638	After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
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1675	1675	LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1676	1676	)))
1677	1677
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	1714	+
1678	1678	[[image:1653358238933-385.png]]
1679	1679
1680	1680