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45	45
46	46	== 1.2  Specifications ==
47	47
48		-(((
49	49	**Hardware System:**
50		-)))
51	51
52		-* (((
53		-STM32L072CZT6 MCU
54		-)))
55		-* (((
56		-SX1276/78 Wireless Chip
57		-)))
58		-* (((
59		-(((
60		-Power Consumption:
61		-)))
	50	+* STM32L072CZT6 MCU
	51	+* SX1276/78 Wireless Chip
	52	+* Power Consumption:
	53	+** Idle: 4mA@12v
	54	+** 20dB Transmit: 34mA@12v
62	62
63		-* (((
64		-Idle: 4mA@12v
65		-)))
66		-* (((
67		-20dB Transmit: 34mA@12v
68		-)))
69		-)))
70		-
71		-(((
72	72	**Interface for Model: LT22222-L:**
73		-)))
74	74
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		-)))
	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.
93	93
94		-(((
95	95	**LoRa Spec:**
96		-)))
97	97
98		-* (((
99		-(((
100		-Frequency Range:
101		-)))
	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.
102	102
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		-
156	156	== 1.3 Features ==
157	157
158	158	* LoRaWAN Class A & Class C protocol
...	...	@@ -199,21 +199,13 @@
199	199
200	200	== 3.1 How it works? ==
201	201
202		-(((
203	203	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		-)))
205	205
206		-(((
207	207	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		-)))
209	209
210		-(((
211	211	3.2 Example to join LoRaWAN network
212		-)))
213	213
214		-(((
215	215	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		-)))
217	217
218	218	[[image:image-20220523172350-1.png||height="266" width="864"]]
219	219
...	...	@@ -1156,10 +1156,8 @@
1156	1156	)))
1157	1157
1158	1158	(((
1159		-(((
1160	1160	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
1161	1161	)))
1162		-)))
1163	1163
1164	1164	[[image:1653357170703-587.png]]
1165	1165
...	...	@@ -1191,9 +1191,9 @@
1191	1191
1192	1192	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1193	1193
1194		-[[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.**
	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.**
1195	1195
1196		-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.
	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.
1197	1197
1198	1198
1199	1199	**Example3**: Connect to a 220v high active sensor.
...	...	@@ -1205,7 +1205,7 @@
1205	1205
1206	1206	So when sensor active, the current between NEC2501 pin1 and pin2 is:
1207	1207
1208		- [[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.**
	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.**
1209	1209
1210	1210	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.
1211	1211
...	...	@@ -1629,6 +1629,10 @@
1629	1629	)))
1630	1630
1631	1631	(((
	1552	+
	1553	+)))
	1554	+
	1555	+(((
1632	1632	(% 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.
1633	1633	)))
1634	1634
...	...	@@ -1662,7 +1662,7 @@
1662	1662	)))
1663	1663
1664	1664	(((
1665		-= 6. Trouble Shooting =
	1589	+= 6. Trouble Shooting   =
1666	1666	)))
1667	1667
1668	1668	(((
...	...	@@ -1711,43 +1711,43 @@
1711	1711
1712	1712	(((
1713	1713	(((
1714		-(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
	1638	+**LT-22222-L-XXX:**
1715	1715	)))
1716	1716	)))
1717	1717
1718	1718	(((
1719	1719	(((
1720		-(% style="color:#4f81bd" %)**XXX:**
	1644	+**XXX:**
1721	1721	)))
1722	1722	)))
1723	1723
1724	1724	* (((
1725		-(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
	1649	+**EU433**: LT with frequency bands EU433
1726	1726	)))
1727	1727	* (((
1728		-(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
	1652	+**EU868**: LT with frequency bands EU868
1729	1729	)))
1730	1730	* (((
1731		-(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
	1655	+**KR920**: LT with frequency bands KR920
1732	1732	)))
1733	1733	* (((
1734		-(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
	1658	+**CN470**: LT with frequency bands CN470
1735	1735	)))
1736	1736	* (((
1737		-(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
	1661	+**AS923**: LT with frequency bands AS923
1738	1738	)))
1739	1739	* (((
1740		-(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
	1664	+**AU915**: LT with frequency bands AU915
1741	1741	)))
1742	1742	* (((
1743		-(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
	1667	+**US915**: LT with frequency bands US915
1744	1744	)))
1745	1745	* (((
1746		-(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
	1670	+**IN865**: LT with frequency bands IN865
1747	1747	)))
1748	1748
1749	1749	(((
1750		-* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
	1674	+* **CN779**: LT with frequency bands CN779
1751	1751
1752	1752	= 8. Packing Info =
1753	1753	)))
...	...	@@ -1758,14 +1758,26 @@
1758	1758	)))
1759	1759	)))
1760	1760
	1685	+* (((
1761	1761	(((
	1687	+LT I/O Controller x 1
	1688	+)))
	1689	+)))
	1690	+* (((
1762	1762	(((
1763		-* LT-22222-L I/O Controller x 1
1764		-* Stick Antenna for LoRa RF part x 1
1765		-* Bracket for controller x1
1766		-* Program cable x 1
	1692	+Stick Antenna for LoRa RF part x 1
1767	1767	)))
1768	1768	)))
	1695	+* (((
	1696	+(((
	1697	+Bracket for controller x1
	1698	+)))
	1699	+)))
	1700	+* (((
	1701	+(((
	1702	+Program cable x 1
	1703	+)))
	1704	+)))
1769	1769
1770	1770	(((
1771	1771	(((