Version 141.2 by Xiaoling on 2023/01/29 13:38
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2 [[image:image-20220620202334-2.png||height="467" width="809"]]
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5 (((
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9 )))
10
11 **Table of Contents：**
12
13 {{toc/}}
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16
17
18
19 = 1. Introduction =
20
21 == 1.1 What is LPS8v2 ==
22
23
24 (((
25 (((
26 The LPS8v2 is an (% style="color:green" %)**open-source LoRaWAN Gateway**(%%). It lets you bridge LoRa wireless network to an IP network via (% style="color:green" %)**WiFi , Ethernet or Cellular Network**(%%) (via Optional 4G module). The LoRa wireless allows users to send data and reach extremely long ranges at low data rates.
27 )))
28
29 (((
30 The LPS8v2 is fully compatible with LoRaWAN protocol. It supports different kinds of LoRaWAN Network Connections such as: (% style="color:green" %)**Semtech UDP Packet Forwarder, LoRaWAN Basic Station, ChirpStack MQTT Bridge**(%%), and so on. This makes LPS8V2 work with most LoRaWAN platforms in the market.
31 )))
32
33 (((
34 LPS8v2 also includes a (% style="color:green" %)**built-in LoRaWAN Server and IoT server**(%%), which provide the possibility for the system integrator to deploy the IoT service without cloud service or 3rd servers.
35 )))
36
37 (((
38 Different countries use different LoRaWAN frequency bands. LPS8v2 has these bands pre-configured. Users can also customize the frequency bands to use in their own LoRa network.
39 )))
40
41 (((
42 LPS8v2 supports (% style="color:green" %)**remote management**(%%). System Integrator can easy to remote monitor the gateway and maintain it.
43 )))
44
45
46 == 1.2 Specifications ==
47
48
49 (% style="color:#037691" %)**Hardware System:**
50
51 * CPU: Quad-core Cortex-A7 1.2Ghz
52 * RAM: 512MB
53 * eMMC: 4GB
54
55 (% style="color:#037691" %)**Interface:**
56
57 * 10M/100M RJ45 Ports x 1
58 * Multi-Channel LoRaWAN Wireless
59 * WiFi 802.11 b/g/n
60
61 (% style="color:#037691" %)**Operating Condition:**
62
63 * Work Temperature: -20 ~~ 65°C
64 * Storage Temperature: -20 ~~ 65°C
65 * Power Input: 5V, 2A, DC
66
67
68
69 == 1.3 Features ==
70
71
72 * Open Source Debian system
73 * Managed by Web GUI, SSH via WAN or WiFi
74 * Remote Management
75 * Auto-provisioning for batch deployment and management
76 * LoRaWAN Gateway
77 * 10 programmable parallel demodulation paths
78 * Pre-configured to support different LoRaWAN regional settings.
79 * Allow customizing LoRaWAN regional parameters.
80 * Different kinds of LoRaWAN Connections such as
81 ** Semtech UDP Packet Forwarder
82 ** LoRaWAN Basic Station
83 ** ChirpStack-Gateway-Bridge (MQTT)
84 * Built-in (% style="color:#037691" %)//**The Things Network**//(%%) local LoRaWAN server
85 * Built-in  (% style="color:#037691" %)//**Node-Red**// (%%)local Application server
86
87
88
89 == 1.4 Block Diagram ==
90
91
92
93 == 1.5 LED Indicators ==
94
95
96 LPS8-V2 has totally four LEDs, They are:
97
98
99 (% style="color:blue" %)//**➢ Power LED**//(%%)//: This RED LED will be solid if the device is properly powered//
100
101 (% style="color:blue" %)//**➢ ETH LED**//(%%)//:  This RGB LED will blink GREEN when the ETH port is connecting//
102
103 (% style="color:blue" %)//**➢ SYS LED**//(%%)//:  This RGB LED will show different colors in different states~://
104
105 // ✓ **SOLID GREEN:** The device is alive with a LoRaWAN server connection.//
106
107 // ✓ **BLINKING GREEN:** a) Device has internet connection but no LoRaWAN Connection. or b) Device is in booting stage, in this stage, it will BLINKING GREEN for several seconds and then with BLINKING GREEN together//
108
109 // ✓** SOLID RED:** Device doesn't have an Internet connection.//
110
111 (% style="color:blue" %)//**➢ WIFI LED**//(%%)//: This LED shows the WIFI interface connection status.//
112
113
114 == 1.6 Button Intruction ==
115
116
117 LPS8-V2 has a black toggle button, which is:
118
119
120 (% style="color:blue" %)**//➢ //Long press 4-5s  : **(%%)the gateway will reload the Network and Initialize wifi configuration
121
122 // **LED status: ** ETH LED will BLINKIND BULE Until the reload is finished.//
123
124
125 (% style="color:blue" %)//**➢ **//**Long press more than 10s:**(%%)**    **//the gateway will restore the factory settings.//
126
127 //**LED status: ** ETH LED will SOLID BULE Until the restore is finished.//
128
129
130 = 2. Quick Start =
131
132
133 The LPS8-V2 supports network access via Ethernet or Wi-Fi connection and runs without a network.
134
135 In most cases, the first thing you need to do is make the lps8-v2 accessible to the network.
136
137
138 == 2.1 Connects to the network and accesses the gateway Web UI ==
139
140 == 2.1.1 connect the network ==
141
142
143 === (% style="color:blue" %)**Method 1**(%%):  Connect via Ethernet with DHCP IP from the router ===
144
145
146 (((
147 Connect the LPS8-V2 Ethernet port to your router and LPS8-V2 can obtain an IP address from your router. In the router's management portal, you should be able to find what IP address the router has assigned to the LPS8-V2.
148 )))
149
150 (((
151 You can also use this IP to connect.
152 )))
153
154 [[image:image-20220622100129-1.png||height="332" width="1263"]]
155
156
157 === (% style="color:blue" %)**Method 2**(%%):  Connect via LPS8-V2 Fallback IP ===
158
159
160 [[image:image-20230107084650-2.png||height="310" width="839"]]
161
162
163 (% style="color:blue" %)**Steps to connect via fallback IP:**
164
165 ~1. Connect the PC's Ethernet port to LPS8-V2's WAN port
166
167 2. Configure PC's Ethernet port has IP: 172.31.255.253 and Netmask: 255.255.255.252
168
169 As in the below photo:
170
171 [[image:image-20230107085904-4.png||height="443" width="361"]]
172
173 3. In the PC, use IP address 172.31.255.254 to access the LPS8-V2 via Web or Console.
174
175
176 [[image:image-20230111094247-2.png||height="619" width="1250"]]
177
178
179
180 === (% style="color:blue" %)**Method 3**(%%):  Connect via WiFi with DHCP IP from the router ===
181
182
183 [[image:image-20220622100542-2.png||height="369" width="1256"]]
184
185
186 Fill in the WiFi information by checking the box and clicking (% style="color:red" %)**Save&Apply**
187
188
189 [[image:image-20220622102702-6.png]]
190
191
192
193 **Wi-Fi configuration successful**
194
195
196 [[image:image-20220622102847-7.png]]
197
198
199 [[image:image-20220622102901-8.png||height="476" width="938"]]
200
201
202 == 2.1.2 Access Configure Web UI ==
203
204
205 **Web Interface**
206
207 Open a browser on the PC and type the LPS8-V2 ip address (depends on your connect method)
208
209
210 [[(% style="background-color:yellow" %)**//http:~~/~~/IP_ADDRESS //**>>http://IP_ADDRESS]](%%) or (% style="background-color:yellow" %)//**[[http:~~/~~/172.31.255.254>>http://172.31.255.254(]]**//(Fallback IP)
211
212 You will see the login interface of LPS8-V2 as shown below.
213
214 The account details for Web Login are:
215
216 (% style="color:#4f81bd" %)**User Name: root**
217
218 (% style="color:#4f81bd" %)**Password:   dragino**
219
220 [[image:image-20230106153501-1.png||height="367" width="894"]]
221
222
223 == 2.2 The LPS8-V2 is registered and connected to The Things Network ==
224
225 === 2.2.1 Select your area frequency ===
226
227
228 (((
229 First, you need to set the frequency plan in LPS8-V2 to match the end node we use, so to receive the LoRaWAN packets from the LoRaWAN sensor.
230
231
232 )))
233
234 [[image:image-20220622103332-9.png||height="485" width="938"]]
235
236
237 === 2.2.2 Get the only gateway EUI ===
238
239
240 Every LPS8-V2 has a unique gateway id. The ID can be found on LoRaWAN Semtech page:
241
242
243 [[image:image-20220622103355-10.png||height="698" width="949"]]
244
245
246 (% style="color:red" %)**Note: Choose the cluster that corresponds to a specific Gateway server address**
247
248
249 **➢ Europe 1:**  corresponding Gateway server address:  **eu1.cloud.thethings.network**
250
251 **➢ North America 1:**  corresponding Gateway server address:  **nam1.cloud.thethings.network**
252
253 **➢ Australia 1: ** corresponding Gateway server address:  **au1.cloud.thethings.network**
254
255 **➢ Legacy V2 Console:** TTN v2 shuts down in December 2021
256
257
258 [[image:image-20220622103956-12.png]]
259
260
261 == 2.2.3 Register the gateway to The Things Network ==
262
263
264 **Login to The Things Network**
265
266 [[https:~~/~~/console.cloud.thethings.network/>>https://console.cloud.thethings.network/]]
267
268
269 **Add the gateway**
270
271 [[image:image-20220622104252-13.png||height="511" width="953"]]
272
273
274 **Get it online**
275
276
277 = 3. Web Configure Pages =
278
279 == 3.1 Home ==
280
281
282 //Shows the system running status~://
283
284 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220622102901-8.png?rev=1.1||alt="image-20220622102901-8.png" height="476" width="939"]]
285
286
287 == 3.2 LoRa Settings ==
288
289 === 3.2.1 LoRa ~-~-> LoRa ===
290
291
292 //This page shows the LoRa Radio Settings. There is a set of default frequency bands according to LoRaWAN protocol, and users can customize the band* as well.//
293
294 //Different LPS8v2 hardware versions can support different frequency ranges~://
295
296 * (% style="color:#0000ff" %)//**868**//(% style="color:black" %)//: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865, or KZ865.//
297 * (% style="color:#0000ff" %)//**915**//(% style="color:black" %)//: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920//
298
299 (% class="wikigeneratedid" %)
300 //After the user choose the frequency plan,  the user can see the actual frequency is used by checking the page (% style="color:#037691" %)**LogRead ~-~-> LoRa Log**//
301
302
303 (% class="wikigeneratedid" %)
304 [[image:image-20220616110739-1.png||height="372" width="682"]]
305
306
307 (((
308 (% style="color:red" %)//**Note *: See this instruction for how to customize the frequency band: **//(%%)**//__[[How to customized LoRaWAN frequency band - DRAGINO>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]__//**
309 )))
310
311
312 == 3.3 LoRaWAN Settings ==
313
314 === 3.3.1 LoRaWAN ~-~-> LoRaWAN Semtech UDP ===
315
316
317 //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.//
318
319
320 [[image:image-20220616111932-2.png||height="516" width="672"]]
321
322
323 === 3.3.2 LoRaWAN ~-~-> LoRaWAN Basic Station ===
324
325
326 //This page is for the connection set up to the TTN Basic Station, AWS-IoT, etc.//
327
328
329 [[image:image-20220616113246-3.png||height="396" width="672"]]
330
331
332 (((
333 Please see this instruction to know more detail and a demo for how to use of LoRaWAN Basic Station: __[[Use of LoRaWAN Basic Station - DRAGINO>>doc:Main.Use of LoRaWAN Basic Station.WebHome]]__
334 )))
335
336
337 == 3.4 Network Settings ==
338
339 === 3.4.1 Network ~-~-> WiFi ===
340
341
342 [[image:image-20220616114756-4.png||height="251" width="669"]]
343
344
345 === 3.4.2 Network ~-~-> System Status ===
346
347
348 [[image:image-20220820134112-2.png||height="539" width="668"]]
349
350
351 === 3.4.3 Network ~-~-> Firewall ===
352
353
354 [[image:image-20220616115351-6.png||height="244" width="661"]]
355
356
357 == 3.5 System ==
358
359 === 3.5.1 System ~-~-> System Overview ===
360
361
362 Shows the system info:
363
364 [[image:image-20220917144512-5.png||height="618" width="853"]]
365
366
367 === 3.5.2 System ~-~-> System General ===
368
369
370 In the System-> System General interface, Users can customize the configuration System Password and set Timezone.
371
372 [[image:image-20230107084158-1.png||height="543" width="844"]]
373
374
375 === 3.5.3 System ~-~-> Backup/Restore ===
376
377
378 [[image:image-20220917144725-6.png||height="208" width="869"]]
379
380
381 === 3.5.4 System ~-~-> Remoteit ===
382
383
384 In the System-> Remoteit interface, users can configure the gateway to be accessed remotely via Remote.it.
385
386
387 the users can refer to this link to configure them: **[[Monitor & Remote Access Gateway>>http://wiki.dragino.com/xwiki/bin/view/Main/Monitor%20%26%20Remote%20Access%20Gateway/?Remote%20Access#H2.1A0RemoteAccessviaRemote.it.]]**
388
389 [[image:image-20221230092303-2.png]]
390
391
392 = 4. Build-in Server =
393
394
395 The default factory version of LPS8-V2 is installed with the built-in Applicant server: (% style="color:blue" %)**Node-Red, and**(%%) LoRaWAN Server: (% style="color:blue" %)**The Things Network - Stack (Open Source 3.19 Version).**
396
397
398 [[image:image-20220820115644-1.png||height="217" width="778"]]
399
400
401 (% style="color:red" %)**Note:**
402
403 **Path**: System ~-~-> Built-in Server
404
405
406 **Troubleshooting:**
407
408
409 **~ 1. URL does not jump properly**
410
411 For the ttn-stack, you can click the update the URL which will update the configuration where change the hostname to the current local IP address as the URL.
412
413 For the Node-Red, you can use the local IP address and the port is 1880 to access it.
414
415
416 == 4.1 LoRaWAN Network  Server ~-~- The Things Network - Stack (TTN-V3) ==
417
418
419 You can access the gateway's built-in LNS server of (% style="color:blue" %)**The Things Network - Stack **(%%)via the URL( (% style="background-color:yellow" %)__**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address> //**__(%%)) in your browser.
420
421 Such as  (% style="background-color:yellow" %)__**//http:~/~/dragino-54ff12:8080  or http:~/~/<Local-IPV4-Address>//**__
422
423
424 Login account:
425
426 **User ID: ** ** (% style="background-color:yellow" %)admin(%%)**
427
428 **Password: ** ** (% style="background-color:yellow" %)dragino(%%)**
429
430
431 [[image:image-20220725171719-1.png||height="570" width="769"]]
432
433
434 == 4.2 Application Server ~-~- Node-Red ==
435
436
437 You can access the gateway's built-in AS server of (% style="color:blue" %)**Node-Red **(%%)via the URL((% style="background-color:yellow" %)__**//http:~/~/<hostname>:1880 or http:~/~/<local-IPV4-address>//**__(%%)) in your browser.
438
439
440 Such as (% style="background-color:yellow" %)__**//http:~/~/dragino-54ff12:1880  or http:~/~/<Local-IPV4-Address>//**__
441
442
443 [[image:image-20220725172124-3.png||height="610" width="843"]]
444
445
446
447 === **Using Node-Red, InfluxDB and Grafana** ===
448
449 The LPS8-V2 supports this combination, the default, Node-red is pre-installed but the InfluxDB and Grafana is not pre-installed.
450
451
452 the users can refer to this link to install them.
453
454 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Armbian%20OS%20instruction/#H2.6HowtoinstallGrafanaandinfluxdb>>http://wiki.dragino.com/xwiki/bin/view/Main/Armbian%20OS%20instruction/#H2.6HowtoinstallGrafanaandinfluxdb]]
455
456
457 == 4.3 How to disable the built-in server ==
458
459
460 Use the following commands to start and stop the TTNv3 service:
461
462 (% class="box infomessage" %)
463 (((
464 **# start**
465 systemctl start ttnstack
466
467 **# stop**
468 systemctl stop ttnstack
469
470 **# enable**
471 systemctl enable ttnstack
472
473 **#disable**
474 systemctl disable ttnstack
475 )))
476
477 Use the following commands to start and stop the Node-Red service:
478
479 (% class="box infomessage" %)
480 (((
481 **# start**
482 systemctl start nodered
483
484 **# stop**
485 systemctl stop nodered
486
487 **# enable**
488 systemctl enable nodered
489
490 **#disable**
491 systemctl disable nodered
492 )))
493
494
495 == 4.4 How to use ChirpStack on LPS8-V2 ==
496
497
498 By default, the built-in LoRaWAN network server used on LPS8v2 is TTNv3, so users need to disable TTNv3 services and follow this link to install chirpstack:
499
500 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Armbian%20OS%20instruction/#H3.A0HowtoinstallChirpStack>>http://wiki.dragino.com/xwiki/bin/view/Main/Armbian%20OS%20instruction/#H3.A0HowtoinstallChirpStack]]
501
502
503 = 5. How users can access LPS8-V2 using serial USB =
504
505
506 (% style="color:blue" %)**USB TTL to LPS8-V2  Connection:**
507
508
509 Port 1 of the UART on the LPS8-V2 is GND
510
511 (% class="box infomessage" %)
512 (((
513 **TXD  <~-~--> UART RXD (Gray line)**
514
515 **RXD  <~-~--> UART TXD (White line)**
516
517 **GND <~-~--> GND (Black line)**
518 )))
519
520
521 **LPS8v2 UART connection photo**
522
523 [[image:image-20220804163015-1.png||height="621" width="466"]]
524
525
526 In the PC,you can use the serial port tool(such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]] in Windows), you need to set the serial baud rate to (% style="color:blue" %)**115200**(%%) to access the serial console for LPS8v2. LPS8v2 will output system info once power on as below:
527
528
529 [[image:image-20220804164928-3.png||height="320" width="332"]]
530
531
532 [[image:image-20220804164747-2.png||height="622" width="594"]]
533
534
535 = 6. Use the helium gateway-rs as the Data-only Hotspot =
536
537
538 == **Step 1: Configure Frequency Band** ==
539
540
541 //Each country has a requirement for frequency region. Choose the right one for your area.//
542
543 [[image:image-20220905164308-1.png]]
544
545
546
547 == **Step 2: Configure the forward address** ==
548
549
550 **Select one of the servers to configure.**
551
552 **For example:**
553
554 [[image:image-20220905164847-2.png]]
555
556
557
558 == **Step 3: Download and Install the Helium-gateway-rs** ==
559
560
561 **Access the gateway CLI via SSH.**
562
563 [[image:image-20220905165222-3.png]]
564
565
566 **Download gateway-rs.**
567
568 [[image:image-20220905165715-5.png]]
569
570 (% class="box infomessage" %)
571 (((
572 **Command: wget [[http:~~/~~/repo.dragino.com/release/tool/gateway-rs/helium-gateway-v1.0.0-alpha.31-raspi234.deb>>http://repo.dragino.com/release/tool/gateway-rs/helium-gateway-v1.0.0-alpha.31-raspi234.deb]]**
573 )))
574
575
576 **Install gateway-rs.**
577
578 [[image:image-20220905165917-7.png]]
579
580 (% class="box infomessage" %)
581 (((
582 **Command: dpkg -i helium-gateway-v1.0.0-alpha.31-raspi234.deb **
583 )))
584
585
586 **Modify configuration.**
587
588
589 [[image:image-20220905173847-12.png]]
590
591
592 (% class="box infomessage" %)
593 (((
594 **region=<Enter regional parameters> \
595 && sed -i '/region/d' /etc/helium_gateway/settings.toml && sed -i "1 i\region = \"$region\"" /etc/helium_gateway/settings.toml \
596 && sed -i '/region/d' /etc/helium_gateway/default.toml && sed -i "22 i\region = \"$region\"" /etc/helium_gateway/default.toml**
597 )))
598
599
600 **Restart the helium_gateway**
601
602 [[image:image-20220905170920-9.png]]
603
604
605 (% class="box infomessage" %)
606 (((
607 **systemctl restart helium_gateway**
608 )))
609
610
611 **Check the helium_gateway Log：**
612
613 [[image:image-20220905173952-13.png]]
614
615
616 (% class="box infomessage" %)
617 (((
618 **journalctl -u helium_gateway -f**
619 )))
620
621
622 (% style="color:red" %)**Note: if your device is not finished the onboarding, which is unable to connect to the Helium console.**
623
624 where the helium gateway log is shown:
625
626 [[image:image-20220905174534-14.png]]
627
628
629 So you have to finish the onboarding, ~-~--Please refer to [[Step 2.7>>doc:Main.Notes for Helium.WebHome||anchor="H2.7A0Step6:OnboardingData-OnlyHotspot"]] to onboarding your LPS8-V2.
630
631
632 = 7. OTA System Update =
633
634
635 LPS8v2 supports system auto update via OTA, please see **[[this URL>>url:http://wiki.dragino.com/xwiki/bin/view/OTA%20Update/]]** for the detail of this feature.
636
637
638 = 8. Trouble Shooting =
639
640 == 8.1  I can't log in to the built-in Server TTN Stack which shows '**Login failed**'. ==
641
642
643 [[image:image-20220920135918-1.png]]
644
645
646 This is caused by the inconsistency between the built-in TTN-Stack domain configuration and your login URL.
647
648 By default, ttn-stack uses the gateway's domain name for URL resolution, but in some networks, they prefer to resolve IP-v4 addresses.
649
650
651 So you can change the domain name of the TTN-Stack configuration to the IPv4 address.
652
653 **Click the update URL button to configure the URL with the current eth port address.**
654
655 [[image:image-20220920141936-2.png]]
656
657
658 = (% style="color:inherit; font-family:inherit; font-size:29px" %)9. Supports(%%) =
659
660
661 (((
662 **//If you are experiencing issues and can't solve them, you can send mail to [[support@dragino.com>>mailto:support@dragino.com]].//**
663 )))
664
665 (((
666 **//With your question as detailed as possible. We will reply and help you in the shortest.//**
667
668
669 = 10. Reference =
670
671
672 * Install Tago Core: Refer **Install Tago Core in LPS8v2** in[[ Instruction>>doc:Main.Tago\.IO.WebHome]].
673 * [[Advance OS Reference Guide for LPS8v2>>doc:Main.Armbian OS instruction.WebHome]].
674
675
676
677 )))
678
679 = 11. Order Info =
680
681
682 (% style="color:#0000ff" %)**LPS8v2-XXX-YYY**
683
684 (% style="color:#0000ff" %)**XXX**(% style="color:black" %): Frequency Band
685
686 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
687 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
688 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
689 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
690 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
691 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
692
693 (% style="color:#0000ff" %)**YYY**(% style="color:black" %): 4G Cellular Option
694
695 * (% style="color:red" %)**E**(%%):  EMEA, Korea, Thailand, India.
696 * (% style="color:red" %)**A**(%%):  North America/ Rogers/AT&T/T-Mobile.
697 * (% style="color:red" %)**AU**(%%): Latin America, New Zeland, Taiwan
698 * (% style="color:red" %)**J**(%%):  Japan, DOCOMO/SoftBank/ KDDI
699
700 More info about valid bands, please see [[EC25-E product page>>url:https://www.quectel.com/product/ec25.htm]].
701
702
703 = 12. Manufacturer Info =
704
705
706 **Shenzhen Dragino Technology Development co. LTD**
707
708 Room 202, Block B, BCT Incubation Bases (BaoChengTai),  No.8 CaiYunRoad
709
710 LongCheng Street, LongGang District ; Shenzhen 518116,China
711
712
713 = 13. FCC Warning =
714
715
716 (((
717 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
718 )))
719
720 (((
721 ~-~- Reorient or relocate the receiving antenna.
722 )))
723
724 (((
725 ~-~- Increase the separation between the equipment and receiver.
726 )))
727
728 (((
729 ~-~- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
730 )))
731
732 (((
733 ~-~- Consult the dealer or an experienced radio/TV technician for help.
734 )))
735
736
737 (((
738 Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
739 )))
740
741
742 (((
743 The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
744
745
746 )))
747 )))

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