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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... ... @@ -1116,9 +1116,9 @@ 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:/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.** 1119 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/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:/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.** 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:/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. 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:/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:/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. 1122 1122 1123 1123 1124 1124 **Example3**: Connect to a 220v high active sensor. ... ... @@ -1130,7 +1130,7 @@ 1130 1130 1131 1131 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1132 1132 1133 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/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.** 1133 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/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:/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.** 1134 1134 1135 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. 1136 1136 ... ... @@ -1383,250 +1383,433 @@ 1383 1383 1384 1384 === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === 1385 1385 1386 +((( 1386 1386 If device has not joined network yet: 1388 +))) 1387 1387 1390 +((( 1388 1388 (% style="background-color:#dcdcdc" %)123456 1392 +))) 1389 1389 1394 +((( 1390 1390 (% style="background-color:#dcdcdc" %)AT+FDR 1396 +))) 1391 1391 1398 +((( 1392 1392 (% style="background-color:#dcdcdc" %)123456 1400 +))) 1393 1393 1402 +((( 1394 1394 (% style="background-color:#dcdcdc" %)AT+NJM=0 1404 +))) 1395 1395 1406 +((( 1396 1396 (% style="background-color:#dcdcdc" %)ATZ 1408 +))) 1397 1397 1398 1398 1411 +((( 1399 1399 If device already joined network: 1413 +))) 1400 1400 1415 +((( 1401 1401 (% style="background-color:#dcdcdc" %)AT+NJM=0 1417 +))) 1402 1402 1419 +((( 1403 1403 (% style="background-color:#dcdcdc" %)ATZ 1421 +))) 1404 1404 1405 1405 === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) === 1406 1406 1425 +((( 1407 1407 (% style="background-color:#dcdcdc" %) 123456(%%) Enter Password to have AT access. 1427 +))) 1408 1408 1429 +((( 1409 1409 (% style="background-color:#dcdcdc" %) AT+FDR(%%) Reset Parameters to Factory Default, Keys Reserve 1431 +))) 1410 1410 1433 +((( 1411 1411 (% style="background-color:#dcdcdc" %) 123456(%%) Enter Password to have AT access. 1435 +))) 1412 1412 1437 +((( 1413 1413 (% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C 1439 +))) 1414 1414 1441 +((( 1415 1415 (% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode 1443 +))) 1416 1416 1445 +((( 1417 1417 (% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off 1447 +))) 1418 1418 1449 +((( 1419 1419 (% style="background-color:#dcdcdc" %) AT+DR=5(%%) Set Data Rate 1451 +))) 1420 1420 1453 +((( 1421 1421 (% style="background-color:#dcdcdc" %) AT+TDC=60000(%%) Set transmit interval to 60 seconds 1455 +))) 1422 1422 1457 +((( 1423 1423 (% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz 1459 +))) 1424 1424 1461 +((( 1425 1425 (% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server) 1463 +))) 1426 1426 1465 +((( 1427 1427 (% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%) Set RX2DR to match the downlink DR from server. see below 1467 +))) 1428 1428 1469 +((( 1429 1429 (% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%)Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal. 1471 +))) 1430 1430 1473 +((( 1431 1431 (% style="background-color:#dcdcdc" %) ATZ (%%) Reset MCU 1475 +))) 1432 1432 1477 +((( 1433 1433 (% style="color:red" %)**Note:** 1479 +))) 1434 1434 1481 +((( 1435 1435 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server. 1436 1436 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 1437 1437 3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means. 1438 1438 4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5 1486 +))) 1439 1439 1440 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] 1488 +((( 1489 +[[image:1653359097980-169.png||height="188" width="729"]] 1490 +))) 1441 1441 1492 +((( 1493 + 1494 +))) 1442 1442 1443 -1. 1444 -11. 1445 -111. Change to Class A 1446 1446 1497 +4.2.3 Change to Class A 1447 1447 If sensor JOINED 1448 - 1449 -AT+CLASS=A 1450 - 1499 +(% style="background-color:#dcdcdc" %)AT+CLASS=A 1451 1451 ATZ 1452 1452 1453 - 1454 - 1455 - 1456 - 1457 -1. FAQ 1458 - 1459 -1. 1460 -11. How to upgrade the image? 1461 - 1502 +5. FAQ 1503 +5.1 How to upgrade the image? 1462 1462 The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to: 1463 1463 1506 + 1464 1464 * Support new features 1465 1465 * For bug fix 1466 1466 * Change LoRaWAN bands. 1467 - 1468 1468 Below shows the hardware connection for how to upload an image to the LT: 1469 1469 1470 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]] 1471 - 1472 - 1473 1473 **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]]. 1474 - 1475 1475 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 1476 - 1477 1477 **Step3: **Open flashloader; choose the correct COM port to update. 1478 - 1479 -**For LT-33222-L**: 1480 - 1481 -Hold down the PRO button and then momentarily press the RST reset button and the **DO2 led** will change from OFF to ON. When **DO2 LED** is on, it means the device is in download mode. 1482 - 1483 1483 **For LT-22222-L**: 1484 - 1485 1485 Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode. 1486 1486 1518 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] 1487 1487 1520 +(% style="color:red" %)**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is: 1488 1488 1489 -|((( 1490 -Board detected 1491 -))) 1492 1492 1493 -|((( 1523 +1. ((( 1524 +((( 1494 1494 1495 1495 ))) 1496 1496 1497 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] 1528 +1. ((( 1529 +How to change the LoRa Frequency Bands/Region? 1530 +))) 1531 +))) 1498 1498 1499 - 1500 - 1501 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] 1502 - 1503 - 1504 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image037.png]] 1505 - 1506 - 1507 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is: 1508 - 1509 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]] 1510 - 1511 - 1512 -1. 1513 -11. How to change the LoRa Frequency Bands/Region? 1514 - 1533 +((( 1515 1515 User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download. 1535 +))) 1516 1516 1537 +((( 1538 + 1539 +))) 1517 1517 1518 1518 1. 1519 -11. How to set up LT to work with Single Channel Gateway such as LG01/LG02? 1542 +11. ((( 1543 +How to set up LT to work with Single Channel Gateway such as LG01/LG02? 1544 +))) 1520 1520 1546 +((( 1521 1521 In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency. 1548 +))) 1522 1522 1550 +((( 1523 1523 Assume we have a LG02 working in the frequency 868400000 now , below is the step. 1552 +))) 1524 1524 1554 +((( 1555 + 1556 +))) 1525 1525 1558 +((( 1526 1526 **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. 1560 +))) 1527 1527 1562 +((( 1528 1528 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]] 1564 +))) 1529 1529 1566 +((( 1530 1530 Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN. 1568 +))) 1531 1531 1570 +((( 1571 + 1572 +))) 1532 1532 1574 +((( 1533 1533 **Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands: 1576 +))) 1534 1534 1578 +((( 1535 1535 123456 Enter Password to have AT access. 1580 +))) 1536 1536 1582 +((( 1537 1537 AT+FDR Reset Parameters to Factory Default, Keys Reserve 1584 +))) 1538 1538 1586 +((( 1539 1539 123456 Enter Password to have AT access. 1588 +))) 1540 1540 1590 +((( 1541 1541 AT+NJM=0 Set to ABP mode 1592 +))) 1542 1542 1594 +((( 1543 1543 AT+ADR=0 Set the Adaptive Data Rate Off 1596 +))) 1544 1544 1598 +((( 1545 1545 AT+DR=5 Set Data Rate (Set AT+DR=3 for 915 band) 1600 +))) 1546 1546 1602 +((( 1547 1547 AT+TDC=60000 Set transmit interval to 60 seconds 1604 +))) 1548 1548 1606 +((( 1549 1549 AT+CHS=868400000 Set transmit frequency to 868.4Mhz 1608 +))) 1550 1550 1610 +((( 1551 1551 AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1 1612 +))) 1552 1552 1614 +((( 1553 1553 ATZ Reset MCU 1616 +))) 1554 1554 1618 +((( 1555 1555 As shown in below: 1620 +))) 1556 1556 1622 +((( 1557 1557 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]] 1624 +))) 1558 1558 1626 +((( 1627 + 1628 +))) 1559 1559 1630 +((( 1631 + 1632 +))) 1560 1560 1561 -1. 1562 -11. Can I see counting event in Serial? 1634 +1. ((( 1635 +((( 1636 + 1637 +))) 1563 1563 1639 +1. ((( 1640 +Can I see counting event in Serial? 1641 +))) 1642 +))) 1643 + 1644 +((( 1564 1564 User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first. 1646 +))) 1565 1565 1648 +((( 1649 + 1650 +))) 1566 1566 1652 +((( 1653 + 1654 +))) 1567 1567 1656 +((( 1657 + 1658 +))) 1568 1568 1569 -1. Trouble Shooting 1570 -11. Downlink doesn’t work, how to solve it? 1660 +1. ((( 1661 +((( 1662 +Trouble Shooting 1663 +))) 1571 1571 1665 +1. ((( 1666 +Downlink doesn’t work, how to solve it? 1667 +))) 1668 +))) 1669 + 1670 +((( 1572 1572 Please see this link for how to debug: 1672 +))) 1573 1573 1674 +((( 1574 1574 [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]] 1676 +))) 1575 1575 1678 +((( 1679 + 1680 +))) 1576 1576 1577 1577 1. 1578 -11. Have trouble to upload image. 1683 +11. ((( 1684 +Have trouble to upload image. 1685 +))) 1579 1579 1687 +((( 1580 1580 See this link for trouble shooting: 1689 +))) 1581 1581 1691 +((( 1582 1582 [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]] 1693 +))) 1583 1583 1695 +((( 1696 + 1697 +))) 1584 1584 1585 1585 1. 1586 -11. Why I can’t join TTN in US915 /AU915 bands? 1700 +11. ((( 1701 +Why I can’t join TTN in US915 /AU915 bands? 1702 +))) 1587 1587 1704 +((( 1588 1588 It might be about the channels mapping. Please see this link for detail: 1706 +))) 1589 1589 1708 +((( 1590 1590 [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]] 1710 +))) 1591 1591 1712 +((( 1713 + 1714 +))) 1592 1592 1716 +((( 1717 + 1718 +))) 1593 1593 1720 +((( 1721 + 1722 +))) 1594 1594 1595 -1. Order Info 1724 +1. ((( 1725 +Order Info 1726 +))) 1596 1596 1728 +((( 1597 1597 **For LT-33222-L-XXX or LT-22222-L-XXX:** 1730 +))) 1598 1598 1732 +((( 1599 1599 **XXX:** 1734 +))) 1600 1600 1601 -* **EU433**: LT with frequency bands EU433 1602 -* **EU868**: LT with frequency bands EU868 1603 -* **KR920**: LT with frequency bands KR920 1604 -* **CN470**: LT with frequency bands CN470 1605 -* **AS923**: LT with frequency bands AS923 1606 -* **AU915**: LT with frequency bands AU915 1607 -* **US915**: LT with frequency bands US915 1608 -* **IN865**: LT with frequency bands IN865 1609 -* **CN779**: LT with frequency bands CN779 1736 +* ((( 1737 +**EU433**: LT with frequency bands EU433 1738 +))) 1739 +* ((( 1740 +**EU868**: LT with frequency bands EU868 1741 +))) 1742 +* ((( 1743 +**KR920**: LT with frequency bands KR920 1744 +))) 1745 +* ((( 1746 +**CN470**: LT with frequency bands CN470 1747 +))) 1748 +* ((( 1749 +**AS923**: LT with frequency bands AS923 1750 +))) 1751 +* ((( 1752 +**AU915**: LT with frequency bands AU915 1753 +))) 1754 +* ((( 1755 +**US915**: LT with frequency bands US915 1756 +))) 1757 +* ((( 1758 +**IN865**: LT with frequency bands IN865 1759 +))) 1760 +* ((( 1761 +**CN779**: LT with frequency bands CN779 1762 +))) 1610 1610 1611 -1. Packing Info 1764 +1. ((( 1765 +Packing Info 1766 +))) 1612 1612 1768 +((( 1613 1613 **Package Includes**: 1770 +))) 1614 1614 1615 -* LT I/O Controller x 1 1616 -* Stick Antenna for LoRa RF part x 1 1617 -* Bracket for controller x1 1618 -* Program cable x 1 1772 +* ((( 1773 +LT I/O Controller x 1 1774 +))) 1775 +* ((( 1776 +Stick Antenna for LoRa RF part x 1 1777 +))) 1778 +* ((( 1779 +Bracket for controller x1 1780 +))) 1781 +* ((( 1782 +Program cable x 1 1783 +))) 1619 1619 1785 +((( 1620 1620 **Dimension and weight**: 1787 +))) 1621 1621 1622 -* Device Size: 13.5 x 7 x 3 cm 1623 -* Device Weight: 105g 1624 -* Package Size / pcs : 14.5 x 8 x 5 cm 1625 -* Weight / pcs : 170g 1789 +* ((( 1790 +Device Size: 13.5 x 7 x 3 cm 1791 +))) 1792 +* ((( 1793 +Device Weight: 105g 1794 +))) 1795 +* ((( 1796 +Package Size / pcs : 14.5 x 8 x 5 cm 1797 +))) 1798 +* ((( 1799 +Weight / pcs : 170g 1800 +))) 1626 1626 1627 -1. Support 1802 +1. ((( 1803 +Support 1804 +))) 1628 1628 1629 -* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 1630 -* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to 1806 +* ((( 1807 +Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 1808 +))) 1809 +* ((( 1810 +Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to 1811 +))) 1631 1631 1813 +((( 1632 1632 [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 1815 +)))