Summary

• Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

...	...	@@ -1278,50 +1278,103 @@
1278	1278	[[image:1653357170703-587.png]]
1279	1279
1280	1280	(((
	1281	+(((
1281	1281	When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1282	1282	)))
	1284	+)))
1283	1283
	1286	+(((
	1287	+
	1288	+)))
1284	1284
	1290	+(((
1285	1285	**Example1**: Connect to a Low active sensor.
	1292	+)))
1286	1286
	1294	+(((
1287	1287	This type of sensor will output a low signal GND when active.
	1296	+)))
1288	1288
1289		-* Connect sensor’s output to DI1-
1290		-* Connect sensor’s VCC to DI1+.
	1298	+* (((
	1299	+Connect sensor’s output to DI1-
	1300	+)))
	1301	+* (((
	1302	+Connect sensor’s VCC to DI1+.
	1303	+)))
1291	1291
	1305	+(((
1292	1292	So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
	1307	+)))
1293	1293
	1309	+(((
1294	1294	[[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.**
	1311	+)))
1295	1295
	1313	+(((
1296	1296	If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
	1315	+)))
1297	1297
	1317	+(((
	1318	+
	1319	+)))
1298	1298
	1321	+(((
1299	1299	**Example2**: Connect to a High active sensor.
	1323	+)))
1300	1300
	1325	+(((
1301	1301	This type of sensor will output a high signal (example 24v) when active.
	1327	+)))
1302	1302
1303		-* Connect sensor’s output to DI1+
1304		-* Connect sensor’s GND DI1-.
	1329	+* (((
	1330	+Connect sensor’s output to DI1+
	1331	+)))
	1332	+* (((
	1333	+Connect sensor’s GND DI1-.
	1334	+)))
1305	1305
	1336	+(((
1306	1306	So when sensor active, the current between NEC2501 pin1 and pin2 is:
	1338	+)))
1307	1307
	1340	+(((
1308	1308	[[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.**
	1342	+)))
1309	1309
	1344	+(((
1310	1310	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.
	1346	+)))
1311	1311
	1348	+(((
	1349	+
	1350	+)))
1312	1312
	1352	+(((
1313	1313	**Example3**: Connect to a 220v high active sensor.
	1354	+)))
1314	1314
	1356	+(((
1315	1315	Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler
	1358	+)))
1316	1316
1317		-* Connect sensor’s output to DI1+ with a serial 50K resistor
1318		-* Connect sensor’s GND DI1-.
	1360	+* (((
	1361	+Connect sensor’s output to DI1+ with a serial 50K resistor
	1362	+)))
	1363	+* (((
	1364	+Connect sensor’s GND DI1-.
	1365	+)))
1319	1319
	1367	+(((
1320	1320	So when sensor active, the current between NEC2501 pin1 and pin2 is:
	1369	+)))
1321	1321
1322		- [[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.**
	1371	+(((
	1372	+ [[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.**
	1373	+)))
1323	1323
	1375	+(((
1324	1324	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.
	1377	+)))
1325	1325
1326	1326
1327	1327	=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===