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Last modified by Kilight Cao on 2025/02/07 08:57
From version 121.3
edited by Xiaoling
on 2022/07/06 09:15
Change comment: There is no comment for this version
To version 117.1
edited by Xiaoling
on 2022/07/05 17:51
Change comment: Uploaded new attachment "1657014671459-433.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -50,7 +50,7 @@
50 50  == 1.2  Specifications ==
51 51  
52 52  
53 -(% style="color:#037691" %)**Hardware System:**
53 +**Hardware System:**
54 54  
55 55  (((
56 56   Linux Part:
... ... @@ -60,7 +60,7 @@
60 60  * 64MB RAM
61 61  * 16MB Flash
62 62  
63 -(% style="color:#037691" %)**Interface:**
63 +**Interface:**
64 64  
65 65  * 10M/100M RJ45 Ports x 2
66 66  * WiFi : 802.11 b/g/n
... ... @@ -71,7 +71,7 @@
71 71  * Mini-PCI E connector x 1
72 72  * SX1302 + 2 x SX1250
73 73  
74 -(% style="color:#037691" %)**WiFi Spec:**
74 +**WiFi Spec:**
75 75  
76 76  * IEEE 802.11 b/g/n
77 77  * Frequency Band: 2.4 ~~ 2.462GHz
... ... @@ -84,7 +84,7 @@
84 84  ** 11g 54M : -71dbm
85 85  ** 11n 20M : -67dbm
86 86  
87 -(% style="color:#037691" %)**LoRa Spec:**
87 +**LoRa Spec:**
88 88  
89 89  * Up to -142.5 dBm sensitivity with SX1250 Tx/Rx front-end
90 90  * 70 dB CW interferer rejection at 1 MHz offset
... ... @@ -95,7 +95,7 @@
95 95  * Dynamic data-rate (DDR) adaptation
96 96  * True antenna diversity or simultaneous dual-band operation
97 97  
98 -(% style="color:#037691" %)**Cellular 4G LTE (optional):**
98 +**Cellular 4G LTE (optional):**
99 99  
100 100  * Quectel: [[**EC25 LTE module**>>url:https://www.quectel.com/product/ec25minipcie.htm]]
101 101  * Standard Size SIM Slot
... ... @@ -242,6 +242,7 @@
242 242  LG308N supports flexible network set up for different environment. This section describes the typical network topology can be set in LG308N. The typical network set up includes:
243 243  )))
244 244  
245 +
245 245  * **WAN Port Internet Mode**
246 246  * **WiFi Client Mode**
247 247  * **WiFi AP Mode**
... ... @@ -248,6 +248,7 @@
248 248  * **Cellular Mode**
249 249  
250 250  
252 +
251 251  == 3.2  Use WAN port to access Internet ==
252 252  
253 253  By default, the DLOS8N is set to use the WAN port to connect to an upstream network. When you connect the DLOS8N’s WAN port to an upstream router, DLOS8N will get an IP address from the router and have Internet access via the upstream router. The network status can be checked in the (% style="color:#4f81bd" %)**home page**:
... ... @@ -358,7 +358,6 @@
358 358  
359 359  (% style="color:red" %)**Note: Choose the cluster corresponds to a specific Gateway server address**
360 360  
361 -
362 362  * Europe 1 (% style="color:red" %)**corresponding Gateway server address:** (% style="color:black" %)eu1.cloud.thethings.network
363 363  * North America 1 (% style="color:red" %)**corresponding Gateway server address: **(% style="color:black" %)nam1.cloud.thethings.network
364 364  * Australia 1 (% style="color:red" %)**corresponding Gateway server address: **(% style="color:black" %)au1.cloud.thethings.network
... ... @@ -365,6 +365,7 @@
365 365  * Legacy V2 Console : (% style="color:red" %)**TTN v2 shuts down in December 2021**
366 366  
367 367  
369 +
368 368  (% style="color:#4f81bd" %)**Step 4: Create a Gateway**
369 369  
370 370  [[image:1652422440891-514.png||height="360" width="747"]]
... ... @@ -406,22 +406,19 @@
406 406  
407 407  (% style="color:red" %)**Note: **The server address must match the Gateway server address you choose in TTN V3.
408 408  
409 -
410 410  In the home page, we can see the LoRaWAN connection is ready now.
411 411  
412 -[[image:1657014479765-850.png]]
413 +[[image:1652422685063-596.png||height="327" width="729"]]
413 413  
414 -
415 415  In TTN v3 portal, we can also see the gateway is connected.
416 416  
417 417  [[image:1652422703020-955.png||height="343" width="730"]]
418 418  
419 419  
420 -== 4.3  Configure frequency ==
420 +== 4.3 Configure frequency ==
421 421  
422 -We also need to set the frequency plan in LG308N to match the end node we use, so to receive the LoRaWAN packets from the LoRaWAN sensor.
422 +We also need to set the frequency plan in DLOS8N to match the end node we use, so to receive the LoRaWAN packets from the LoRaWAN sensor.
423 423  
424 -
425 425  [[image:1652422737399-529.png||height="362" width="737"]]
426 426  
427 427  
... ... @@ -430,7 +430,7 @@
430 430   [[image:1652422763536-750.png||height="514" width="730"]]
431 431  
432 432  
433 -== 4.4  Add a LoRaWAN End Device ==
432 +== 4.4 Add a LoRaWAN End Device ==
434 434  
435 435  (((
436 436  This section shows how to add a LoRaWAN End device to a LoRaWAN network and see the data from TTN web site.
... ... @@ -455,18 +455,13 @@
455 455  * APP Key - Unique key to secure communications with a particular device.
456 456  
457 457  (((
458 -
459 -
460 460  A set of these codes are stored in each device by the manufacturer as the default codes for that particular device. Each device is shipped with a sticker with the default Device EUI as shown below.
461 461  )))
462 462  
463 463  [[image:1652422840936-838.png]]
464 464  
465 -
466 466  (((
467 467  (% style="color:red" %)Note: You may be able to change these codes in a device by using a configuration facility on the device e.g. the LT-22222 uses a serial port access and a series of AT commands.  Changing the codes may be necessary in the case where you have to use codes assigned by a LoRa WAN server.
468 -
469 -
470 470  )))
471 471  
472 472  (((
... ... @@ -477,12 +477,10 @@
477 477  Select **Add Application** to open the screen below.
478 478  )))
479 479  
480 -[[image:1657014671459-433.png]]
474 +[[image:1652422946999-255.png||height="356" width="744"]]
481 481  
482 -
483 483  Open the **Application **select** Add end device**
484 484  
485 -
486 486  Start Register the end device
487 487  
488 488  [[image:1652422975885-591.png||height="359" width="726"]]
... ... @@ -489,8 +489,6 @@
489 489  
490 490  (((
491 491  Select OTAA activation mode
492 -
493 -
494 494  )))
495 495  
496 496  (((
... ... @@ -501,18 +501,14 @@
501 501  
502 502  First, input the End device ID, AppEUI and DevEUI.
503 503  
504 -
505 505  [[image:1652423022781-339.png||height="365" width="741"]]
506 506  
507 507  Secondly, choose the corresponding frequency and LoRaWAN class capabilities.
508 508  
509 -
510 510  [[image:1652423046741-467.png||height="355" width="736"]]
511 511  
512 512  (((
513 513  Finally, Application layer settings input the corresponding AppKey. Before saving the configuration, check that the data matches the device.
514 -
515 -
516 516  )))
517 517  
518 518  (((
... ... @@ -526,18 +526,18 @@
526 526  [[image:1652423277549-324.png||height="273" width="745"]]
527 527  
528 528  
529 -= 5.  Web Configure Pages =
515 += 5. Web Configure Pages =
530 530  
531 -== 5.1  Home ==
517 +== 5.1 Home ==
532 532  
533 533  Shows the system running status.
534 534  
535 -[[image:1657014949846-507.png]]
521 +[[image:1652423418568-752.png||height="329" width="724"]]
536 536  
537 537  
538 -== 5.2  LoRa Settings ==
524 +== 5.2 LoRa Settings ==
539 539  
540 -=== 5.2.1  LoRa ~-~-> LoRa ===
526 +=== 5.2.1 LoRa ~-~-> LoRa ===
541 541  
542 542  (((
543 543  This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN protocol, and user can customized the band* as well.
... ... @@ -544,11 +544,11 @@
544 544  )))
545 545  
546 546  (((
547 -Different LG308N hardware version can support different frequency range:
533 +Different DLOS8N hardware version can support different frequency range:
548 548  )))
549 549  
550 -* (% style="color:blue" %)**868**(%%): valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.
551 -* (% style="color:blue" %)**915**(%%): valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920
536 +* **868**: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.
537 +* **915**: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920
552 552  
553 553  (((
554 554  After user choose the frequency plan, he can see the actually frequency in used by checking the page **LogRead ~-~-> LoRa Log**
... ... @@ -559,16 +559,14 @@
559 559  Note *: **[[See this instruction for how to customize frequency band>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]**
560 560  
561 561  
562 -=== 5.2.2  LoRa ~-~-> ABP Decryption ===
548 +=== 5.2.2 LoRa ~-~-> ABP Decryption ===
563 563  
564 -The LG308N can communicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
550 +The DLOS8N can communicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
565 565  
566 566  * No internet connection.
567 567  * User wants to get data forward in gateway and forward to their server based on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>doc:Main.MQTT Forward Instruction.WebHome]]).
568 568  
569 569  (((
570 -
571 -
572 572  Detail of this feature: **[[Communication with ABP End Node>>doc:Main.Communicate with ABP End Node without LoRaWAN Network Server --- LG308.WebHome]]**
573 573  )))
574 574  
... ... @@ -575,9 +575,9 @@
575 575  [[image:1652423628833-467.png||height="357" width="755"]]
576 576  
577 577  
578 -== 5.3  LoRaWAN Settings ==
562 +== 5.3 LoRaWAN Settings ==
579 579  
580 -=== 5.3.1  LoRaWAN ~-~-> LoRaWAN ===
564 +=== 5.3.1 LoRaWAN ~-~-> LoRaWAN ===
581 581  
582 582  This page is for the connection set up to a general LoRaWAN Network server such as: [[TTN>>url:http://www.thethingsnetwork.org/]], [[ChirpStack>>url:https://www.chirpstack.io/]] etc
583 583  
... ... @@ -592,9 +592,8 @@
592 592  **See:** **[[Filter unwanted LoRaWAN packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]**
593 593  
594 594  
579 +=== 5.3.2 LoRaWAN ~-~-> Amazon AWS-IoT ===
595 595  
596 -=== 5.3.2  LoRaWAN ~-~-> Amazon AWS-IoT ===
597 -
598 598  [[image:1652428499323-384.png||height="275" width="723"]]
599 599  
600 600  
... ... @@ -601,11 +601,10 @@
601 601  (((
602 602  Please see this instruction to know more detail and demo for how to connect to **[[AWS-IoT LoRaWAN Core>>doc:Main.AWS IoT Core for LoRaWAN.WebHome]].**
603 603  
604 -
605 605  
606 606  )))
607 607  
608 -=== 5.3.3  LoRaWAN ~-~-> LORIOT ===
590 +=== 5.3.3 LoRaWAN ~-~-> LORIOT ===
609 609  
610 610  (((
611 611  Settings to communicate to LORIOT LoRaWAN Network Server: [[https:~~/~~/www.loriot.io/>>url:https://www.loriot.io/]]
... ... @@ -618,9 +618,9 @@
618 618  [[image:1652428648903-878.png||height="266" width="731"]]
619 619  
620 620  
621 -== 5.4  MQTT Settings ==
603 +== 5.4 MQTT Settings ==
622 622  
623 -If end nodes works in ABP mode, user can configure LG308N to transfer the data to MQTT broker,
605 +If end nodes works in ABP mode, user can configure DLOS8N to transfer the data to MQTT broker,
624 624  
625 625  Instruction: **[[MQTT Forward Instruction>>doc:Main.MQTT Forward Instruction.WebHome]]**
626 626  
... ... @@ -628,19 +628,17 @@
628 628  [[image:1652428705046-212.png||height="417" width="733"]]
629 629  
630 630  
613 +== 5.5 System ==
631 631  
632 -== 5.5  System ==
615 +=== 5.5.1 System ~-~-> System Overview ===
633 633  
634 -=== 5.5.1  System ~-~-> System Overview ===
635 -
636 636  Shows the system info:
637 637  
638 638  [[image:1652428773760-580.png||height="408" width="728"]]
639 639  
640 640  
622 +=== 5.5.2 System ~-~-> General ( login settings) ===
641 641  
642 -=== 5.5.2  System ~-~-> General ( login settings) ===
643 -
644 644  [[image:1652428861256-300.png||height="354" width="724"]]
645 645  
646 646  (((
... ... @@ -648,7 +648,7 @@
648 648  )))
649 649  
650 650  (((
651 -There are two login for DLOS8: (% style="color:#4f81bd" %)root /dragino (% style="color:black" %)or (% style="color:#4f81bd" %)admin /dragino. (% style="color:black" %)Both root and admin has the same right for WEB access. But root user has also the right to access via SSH to Linux system. admin only able to access WEB interface.
631 +There are two login for DLOS8N: (% style="color:#4f81bd" %)root /dragino (% style="color:black" %)or (% style="color:#4f81bd" %)admin /dragino. (% style="color:black" %)Both root and admin has the same right for WEB access. But root user has also the right to access via SSH to Linux system. admin only able to access WEB interface.
652 652  )))
653 653  
654 654  (((
... ... @@ -656,60 +656,56 @@
656 656  )))
657 657  
658 658  (((
659 -**__Timezone: __**Set device timezone.
639 +**__Timezone:__**Set device timezone.
660 660  )))
661 661  
662 662  (((
663 -**__Port forwarding: __**Enable/Disable the HTTP and SSH access via WAN interface.
643 +**__Port forwarding:__**Enable/Disable the HTTP and SSH access via WAN interface.
664 664  
665 -
666 666  
667 667  )))
668 668  
669 -=== 5.5.3  System ~-~-> Network ===
648 +=== 5.5.3 System ~-~-> Network ===
670 670  
671 671  [[image:1652429149053-824.png||height="467" width="725"]]
672 672  
673 673  (((
674 -**__LAN Settings:  __**When the LG308N has the AP enable, LAN settings specify the network info for LG308N's own network.
653 +**__LAN Settings:__**When the DLOS8N has the AP enable, LAN settings specify the network info for DLOS8N’s own network.
675 675  )))
676 676  
677 677  (((
678 -__**WAN Settings: **__Setting for LG308N WAN port
657 +__**WAN Settings:**__Setting for DLOS8N WAN port
679 679  )))
680 680  
681 681  (((
682 -__**WiFi Settings:  **__Setting for LG308N WiFi IP when use it as WiFi Client
661 +__**WiFi Settings:**__Setting for DLOS8N WiFi IP when use it as WiFi Client
662 +
663 +
683 683  )))
684 684  
666 +=== 5.5.4 System ~-~-> WiFi ===
685 685  
668 +DLOS8N WiFi Settings.
686 686  
687 -=== 5.5.4  System ~-~-> WiFi ===
688 -
689 -LG308N WiFi Settings.
690 -
691 691  [[image:1652429430767-921.png||height="367" width="723"]]
692 692  
693 693  
673 +=== 5.5.5 System ~-~-> Cellular ===
694 694  
695 -=== 5.5.5  System ~-~-> Cellular ===
696 -
697 697  While use the cellular as Backup WAN, device will use Cellular for internet connection while WAN port or WiFi is not valid and switch back to WAN port or WiFi after they recover.
698 698  
699 699  [[image:1652429309615-825.png||height="320" width="732"]]
700 700  
701 -(% style="color:red" %)Note *: For LG308N which doesn't have the cellular module, this page will shows Cellular not detected.
679 +(% style="color:red" %)Note *: For DLOS8N which doesn’t have the cellular module, this page will shows Cellular not detected.
702 702  
703 703  
682 +=== 5.5.6 System ~-~-> Network Status ===
704 704  
705 -=== 5.5.6  System ~-~-> Network Status ===
706 -
707 707  [[image:1652429486609-208.png||height="415" width="728"]]
708 708  
709 709  
687 +=== 5.5.7 System ~-~-> Remote Mgnt & Auto Provision ===
710 710  
711 -=== 5.5.7  System ~-~-> Remote Mgnt & Auto Provision ===
712 -
713 713  Auto Provision is the feature for batch configure and remote management. It can be used in below two cases:
714 714  
715 715  [[image:1652429518191-846.png||height="332" width="733"]]
... ... @@ -720,10 +720,8 @@
720 720  
721 721  Please see this document for detail:
722 722  
723 -[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308N/Firmware/Application_Note/&file=Auto-update-feature.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf]]
724 -
725 725  (((
726 -
700 +[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Application_Note/&file=Auto-update-feature.pdf]]
727 727  )))
728 728  
729 729  
... ... @@ -732,9 +732,8 @@
732 732  [[image:1652429624400-864.png||height="432" width="716"]]
733 733  
734 734  
709 +=== 5.5.8 System ~-~-> Firmware Upgrade ===
735 735  
736 -=== 5.5.8  System ~-~-> Firmware Upgrade ===
737 -
738 738  We keep improving the DLOS8N Linux side firmware for new features and bug fixes. Below are the links for reference.
739 739  
740 740  * **Latest firmware**: [[LoRa Gateway Firmware>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG02-OLG02/Firmware/]],
... ... @@ -741,12 +741,10 @@
741 741  
742 742  ( [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG02-OLG02/Firmware>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG02-OLG02/Firmware/]] )
743 743  
744 -
745 745  * **Change Log**: [[Firmware Change Log>>url:http://www.dragino.com/downloads/downloads/LoRa_Gateway/LG02-OLG02/Firmware/ChangeLog]].
746 746  
747 747  ( [[http:~~/~~/www.dragino.com/downloads/downloads/LoRa_Gateway/LG02-OLG02/Firmware/ChangeLog>>url:http://www.dragino.com/downloads/downloads/LoRa_Gateway/LG02-OLG02/Firmware/ChangeLog]] )
748 748  
749 -
750 750  (((
751 751  The file named as (% style="color:green" %)**xxxxx–xxxxx-squashfs-sysupgrade.bin **(% style="color:black" %)is the upgrade Image. There are different methods to upgrade, as below.
752 752  )))
... ... @@ -757,7 +757,6 @@
757 757  
758 758  [[image:1652429711145-862.png||height="270" width="737"]]
759 759  
760 -
761 761  Select the required image and click **Flash Image.** The image will be uploaded to the device, and then click **Process Update** to upgrade.
762 762  
763 763  (% style="color:red" %)**NOTE**: (% style="color:black" %)You normally need to **//uncheck//** the **Preserve Settings** checkbox when doing an upgrade to ensure that there is no conflict between the old settings and the new firmware. The new firmware will start up with its default settings.
... ... @@ -772,22 +772,18 @@
772 772  
773 773  (% style="color:#4f81bd" %)**//root@OpenWrt:~~# /sbin/sysupgrade –n /var/Your_Image//**
774 774  
775 -
776 776  (% style="color:red" %)**NOTE**(%%) : it is important to transfer the image in the /var directory, otherwise it may exceed the available flash size.
777 777  
778 778  
748 +=== 5.5.9 System ~-~-> Reboot/Reset ===
779 779  
780 -=== 5.5.9  System ~-~-> Reboot/Reset ===
781 -
782 782  [[image:1652430197132-330.png||height="256" width="724"]]
783 783  
784 784  (((
785 785  
786 -
787 -
788 788  )))
789 789  
790 -=== 5.5.10  System ~-~-> Package Maintain ===
756 +=== 5.5.10 System ~-~-> Package Maintain ===
791 791  
792 792  [[image:1652430243826-126.png||height="289" width="723"]]
793 793  
... ... @@ -794,45 +794,52 @@
794 794  Place to show what package has installed and possible to upgrade packages.
795 795  
796 796  
763 +== 5.6 LogRead ==
797 797  
798 -== 5.6  LogRead ==
765 +=== 5.6.1 LogRead ~-~-> LoRa Log ===
799 799  
800 -=== 5.6.1  LogRead ~-~-> LoRa Log ===
801 801  
802 802  Show the frequency for LoRa Radio and traffics.
803 803  
804 -[[image:1657069890320-513.png]]
770 +[[image:image-20220615204306-1.png||height="575" width="733"]]
805 805  
806 806  
773 +Show the IoT Server Connection State and FWD State
807 807  
775 +[[image:image-20220616083933-1.png||height="556" width="729"]]
808 808  
809 -=== 5.6.2  LogRead ~-~-> System Log ===
777 +DLOS8 can view GPS location in the Logread FWD State
810 810  
811 -Show the system log
812 812  
813 -[[image:1657069922599-794.png]]
780 +Show the Error logs, RxTxJson lorawan packages, and PULL State
814 814  
782 +[[image:image-20220615205416-6.png||height="442" width="884"]]
815 815  
816 816  
817 -= 6.  More features =
785 +=== 5.6.2 LogRead ~-~-> System Log ===
818 818  
819 -== 6.1  More instructions ==
787 +Show the system log
820 820  
821 -[[LoRaWAN Gateway Instruction>>doc:Main.WebHome]](LoRaWAN Gateway)
789 +[[image:1652430369760-511.png||height="373" width="730"]]
822 822  
791 += 6. More features =
823 823  
793 +== 6.1 More instructions ==
824 824  
825 -= 7.  Linux System =
795 +[[LoRaWAN Gateway Instruction>>doc:Main.WebHome]](LoRaWAN Gateway)
826 826  
827 -The LG308N is based on the OpenWrt Linux system. It is open source, and users are free to configure and modify the Linux settings.
828 828  
798 += 7. Linux System =
829 829  
830 -== 7.1  SSH Access for Linux console ==
800 +The DLOS8N is based on the OpenWrt Linux system. It is open source, and users are free to configure and modify the Linux settings.
831 831  
832 -User can access the Linux console via the SSH protocol. Make sure your PC and the LG308N are connected to the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]] in Windows) to access it.
833 833  
834 -IP address:  IP address of LG308N
803 +== 7.1 SSH Access for Linux console ==
835 835  
805 +User can access the Linux console via the SSH protocol. Make sure your PC and the DLOS8N are connected to the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]] in Windows) to access it.
806 +
807 +IP address:  IP address of DLOS8N
808 +
836 836  Port:         22 (via WiFi AP mode) or 2222 (via WAN Interface)
837 837  
838 838  User Name:      (% style="color:green" %)**root**
... ... @@ -839,12 +839,10 @@
839 839  
840 840  Password:         (% style="color:green" %)**dragino** (% style="color:black" %)(default)
841 841  
842 -
843 843  After logging in, you will be in the Linux console and can enter commands as shown below.
844 844  
845 845  [[image:1652431588565-830.png]]
846 846  
847 -
848 848  The “(% class="mark" %)**logread -f**(%%)” command can be used to debug how system runs.
849 849  
850 850  [[image:1652431609193-637.png||height="214" width="732"]]
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