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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
...	...	@@ -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.**
	1116	+[[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.**
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.
	1118	+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: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.**
	1130	+ [[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.**
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
...	...	@@ -1662,7 +1662,7 @@
1662	1662	)))
1663	1663
1664	1664	(((
1665		-= 6. Trouble Shooting =
	1587	+= 6. Trouble Shooting  =
1666	1666	)))
1667	1667
1668	1668	(((