Changes for page LT-22222-L -- LoRa I/O Controller User Manual
Last modified by Saxer Lin on 2025/04/15 17:24
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... ... @@ -1051,17 +1051,23 @@ 1051 1051 1052 1052 [[image:1653356838789-523.png||height="337" width="740"]] 1053 1053 1054 + 1054 1054 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices. 1055 1055 1056 1056 1057 -[[image:image-20220524094909-1.png ||height="335" width="729"]]1058 +[[image:image-20220524094909-1.png]] 1058 1058 1059 -[[image:image-20220524094909-2.png||height="337" width="729"]] 1060 1060 1061 +[[image:image-20220524094909-2.png]] 1062 + 1063 + 1061 1061 [[image:image-20220524094909-3.png||height="338" width="727"]] 1062 1062 1063 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %) 1064 1064 1067 +[[image:image-20220524094909-4.png||height="339" width="728"]] 1068 + 1069 +(% style="display:none" %) (%%) 1070 + 1065 1065 [[image:image-20220524094909-5.png||height="341" width="734"]] 1066 1066 1067 1067 ... ... @@ -1068,6 +1068,7 @@ 1068 1068 1069 1069 1070 1070 1077 + 1071 1071 == 3.6 Interface Detail == 1072 1072 1073 1073 === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) === ... ... @@ -1076,21 +1076,19 @@ 1076 1076 1077 1077 [[image:1653356991268-289.png]] 1078 1078 1079 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) === 1080 1080 1081 -((( 1087 + 1088 +1. 1089 +11. 1090 +111. Digital Input Port: DI1/DI2 ( For LT-22222-L) 1091 + 1082 1082 The DI port of LT-22222-L can support NPN or PNP output sensor. 1083 -))) 1084 1084 1085 -((( 1086 1086 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 1087 -))) 1088 1088 1089 -[[image: 1653357170703-587.png]]1096 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]] 1090 1090 1091 -((( 1092 1092 When use need to connect a device to the DI port, both DI1+ and DI1- must be connected. 1093 -))) 1094 1094 1095 1095 1096 1096 **Example1**: Connect to a Low active sensor. ... ... @@ -1100,11 +1100,11 @@ 1100 1100 * Connect sensor’s output to DI1- 1101 1101 * Connect sensor’s VCC to DI1+. 1102 1102 1103 -So when sensor active, the current between NEC2501 pin1 and pin2 is : 1108 +So when sensor active, the current between NEC2501 pin1 and pin2 is: 1104 1104 1105 - //IF// = DI1+ / 1K. 1110 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K. 1106 1106 1107 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal. 1112 +If DI1+ = 12v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 12mA , So the LT-22222-L will be able to detect this active signal. 1108 1108 1109 1109 1110 1110 **Example2**: Connect to a High active sensor. ... ... @@ -1116,12 +1116,12 @@ 1116 1116 1117 1117 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1118 1118 1119 -[[image: /xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**1124 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K. 1120 1120 1121 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]]**= 24mA , So the LT-22222-L will be able to detect this high active signal.1126 +If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 24mA , So the LT-22222-L will be able to detect this high active signal. 1122 1122 1123 1123 1124 -**Example3**: Connect to a 220v high active sensor. 1129 +**Example3**: Connect to a 220v high active sensor.公司测试一下 1125 1125 1126 1126 Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler 1127 1127 ... ... @@ -1130,15 +1130,18 @@ 1130 1130 1131 1131 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1132 1132 1133 - /xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**1138 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K. 1134 1134 1135 -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.1140 +If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely. 1136 1136 1137 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 === 1138 1138 1143 +1. 1144 +11. 1145 +111. Digital Output Port: DO1/DO2 /DO3 1146 + 1139 1139 NPN output: GND or Float. Max voltage can apply to output pin is 36v. 1140 1140 1141 -[[image: 1653357531600-905.png]]1149 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]] 1142 1142 1143 1143 1144 1144
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