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45	45
46	46	== 1.2  Specifications ==
47	47
	48	+(((
48	48	**Hardware System:**
	50	+)))
49	49
50		-* STM32L072CZT6 MCU
51		-* SX1276/78 Wireless Chip
52		-* Power Consumption:
53		-** Idle: 4mA@12v
54		-** 20dB Transmit: 34mA@12v
	52	+* (((
	53	+STM32L072CZT6 MCU
	54	+)))
	55	+* (((
	56	+SX1276/78 Wireless Chip
	57	+)))
	58	+* (((
	59	+(((
	60	+Power Consumption:
	61	+)))
55	55
	63	+* (((
	64	+Idle: 4mA@12v
	65	+)))
	66	+* (((
	67	+20dB Transmit: 34mA@12v
	68	+)))
	69	+)))
	70	+
	71	+(((
56	56	**Interface for Model: LT22222-L:**
	73	+)))
57	57
58		-* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
59		-* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
60		-* 2 x Relay Output (5A@250VAC / 30VDC)
61		-* 2 x 0~~20mA Analog Input (res:0.01mA)
62		-* 2 x 0~~30V Analog Input (res:0.01v)
63		-* Power Input 7~~ 24V DC.
	75	+* (((
	76	+2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
	77	+)))
	78	+* (((
	79	+2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
	80	+)))
	81	+* (((
	82	+2 x Relay Output (5A@250VAC / 30VDC)
	83	+)))
	84	+* (((
	85	+2 x 0~~20mA Analog Input (res:0.01mA)
	86	+)))
	87	+* (((
	88	+2 x 0~~30V Analog Input (res:0.01v)
	89	+)))
	90	+* (((
	91	+Power Input 7~~ 24V DC.
	92	+)))
64	64
	94	+(((
65	65	**LoRa Spec:**
	96	+)))
66	66
67		-* Frequency Range:
68		-** Band 1 (HF): 862 ~~ 1020 Mhz
69		-** Band 2 (LF): 410 ~~ 528 Mhz
70		-* 168 dB maximum link budget.
71		-* +20 dBm - 100 mW constant RF output vs.
72		-* +14 dBm high efficiency PA.
73		-* Programmable bit rate up to 300 kbps.
74		-* High sensitivity: down to -148 dBm.
75		-* Bullet-proof front end: IIP3 = -12.5 dBm.
76		-* Excellent blocking immunity.
77		-* Low RX current of 10.3 mA, 200 nA register retention.
78		-* Fully integrated synthesizer with a resolution of 61 Hz.
79		-* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
80		-* Built-in bit synchronizer for clock recovery.
81		-* Preamble detection.
82		-* 127 dB Dynamic Range RSSI.
83		-* Automatic RF Sense and CAD with ultra-fast AFC.
84		-* Packet engine up to 256 bytes with CRC.
	98	+* (((
	99	+(((
	100	+Frequency Range:
	101	+)))
85	85
	103	+* (((
	104	+Band 1 (HF): 862 ~~ 1020 Mhz
	105	+)))
	106	+* (((
	107	+Band 2 (LF): 410 ~~ 528 Mhz
	108	+)))
	109	+)))
	110	+* (((
	111	+168 dB maximum link budget.
	112	+)))
	113	+* (((
	114	++20 dBm - 100 mW constant RF output vs.
	115	+)))
	116	+* (((
	117	++14 dBm high efficiency PA.
	118	+)))
	119	+* (((
	120	+Programmable bit rate up to 300 kbps.
	121	+)))
	122	+* (((
	123	+High sensitivity: down to -148 dBm.
	124	+)))
	125	+* (((
	126	+Bullet-proof front end: IIP3 = -12.5 dBm.
	127	+)))
	128	+* (((
	129	+Excellent blocking immunity.
	130	+)))
	131	+* (((
	132	+Low RX current of 10.3 mA, 200 nA register retention.
	133	+)))
	134	+* (((
	135	+Fully integrated synthesizer with a resolution of 61 Hz.
	136	+)))
	137	+* (((
	138	+FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
	139	+)))
	140	+* (((
	141	+Built-in bit synchronizer for clock recovery.
	142	+)))
	143	+* (((
	144	+Preamble detection.
	145	+)))
	146	+* (((
	147	+127 dB Dynamic Range RSSI.
	148	+)))
	149	+* (((
	150	+Automatic RF Sense and CAD with ultra-fast AFC.
	151	+)))
	152	+* (((
	153	+Packet engine up to 256 bytes with CRC.
	154	+)))
	155	+
86	86	== 1.3 Features ==
87	87
88	88	* LoRaWAN Class A & Class C protocol
...	...	@@ -129,13 +129,21 @@
129	129
130	130	== 3.1 How it works? ==
131	131
	202	+(((
132	132	The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second.
	204	+)))
133	133
	206	+(((
134	134	In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H4.UseATCommand]] to set the keys in the devices.
	208	+)))
135	135
	210	+(((
136	136	3.2 Example to join LoRaWAN network
	212	+)))
137	137
	214	+(((
138	138	This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here.
	216	+)))
139	139
140	140	[[image:image-20220523172350-1.png||height="266" width="864"]]
141	141
...	...	@@ -235,7 +235,9 @@
235	235
236	236	**For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
237	237
	316	+(((
238	238	Total : 11 bytes payload
	318	+)))
239	239
240	240	[[image:image-20220523180452-3.png]]
241	241
...	...	@@ -1078,8 +1078,10 @@
1078	1078	)))
1079	1079
1080	1080	(((
	1161	+(((
1081	1081	Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1082	1082	)))
	1164	+)))
1083	1083
1084	1084	[[image:1653357170703-587.png]]
1085	1085
...	...	@@ -1111,9 +1111,9 @@
1111	1111
1112	1112	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1113	1113
1114		-[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
	1196	+[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1115	1115
1116		-If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
	1198	+If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1117	1117
1118	1118
1119	1119	**Example3**: Connect to a 220v high active sensor.
...	...	@@ -1125,7 +1125,7 @@
1125	1125
1126	1126	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1127	1127
1128		- [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
	1210	+ [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1129	1129
1130	1130	If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1131	1131
...	...	@@ -1549,10 +1549,6 @@
1549	1549	)))
1550	1550
1551	1551	(((
1552		-
1553		-)))
1554		-
1555		-(((
1556	1556	(% style="color:#4f81bd" %)**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.
1557	1557	)))
1558	1558
...	...	@@ -1586,7 +1586,7 @@
1586	1586	)))
1587	1587
1588	1588	(((
1589		-= 6. Trouble Shooting   =
	1667	+= 6. Trouble Shooting =
1590	1590	)))
1591	1591
1592	1592	(((
...	...	@@ -1635,43 +1635,43 @@
1635	1635
1636	1636	(((
1637	1637	(((
1638		-**LT-22222-L-XXX:**
	1716	+(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1639	1639	)))
1640	1640	)))
1641	1641
1642	1642	(((
1643	1643	(((
1644		-**XXX:**
	1722	+(% style="color:#4f81bd" %)**XXX:**
1645	1645	)))
1646	1646	)))
1647	1647
1648	1648	* (((
1649		-**EU433**: LT with frequency bands EU433
	1727	+(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1650	1650	)))
1651	1651	* (((
1652		-**EU868**: LT with frequency bands EU868
	1730	+(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1653	1653	)))
1654	1654	* (((
1655		-**KR920**: LT with frequency bands KR920
	1733	+(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1656	1656	)))
1657	1657	* (((
1658		-**CN470**: LT with frequency bands CN470
	1736	+(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1659	1659	)))
1660	1660	* (((
1661		-**AS923**: LT with frequency bands AS923
	1739	+(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1662	1662	)))
1663	1663	* (((
1664		-**AU915**: LT with frequency bands AU915
	1742	+(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1665	1665	)))
1666	1666	* (((
1667		-**US915**: LT with frequency bands US915
	1745	+(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1668	1668	)))
1669	1669	* (((
1670		-**IN865**: LT with frequency bands IN865
	1748	+(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1671	1671	)))
1672	1672
1673	1673	(((
1674		-* **CN779**: LT with frequency bands CN779
	1752	+* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1675	1675
1676	1676	= 8. Packing Info =
1677	1677	)))
...	...	@@ -1682,26 +1682,14 @@
1682	1682	)))
1683	1683	)))
1684	1684
1685		-* (((
1686	1686	(((
1687		-LT I/O Controller x 1
1688		-)))
1689		-)))
1690		-* (((
1691	1691	(((
1692		-Stick Antenna for LoRa RF part x 1
	1765	+* LT-22222-L I/O Controller x 1
	1766	+* Stick Antenna for LoRa RF part x 1
	1767	+* Bracket for controller x1
	1768	+* Program cable x 1
1693	1693	)))
1694	1694	)))
1695		-* (((
1696		-(((
1697		-Bracket for controller x1
1698		-)))
1699		-)))
1700		-* (((
1701		-(((
1702		-Program cable x 1
1703		-)))
1704		-)))
1705	1705
1706	1706	(((
1707	1707	(((