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Last modified by Saxer Lin on 2025/03/18 17:25
From version 53.1
edited by Saxer Lin
on 2023/06/14 11:28
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To version 75.10
edited by Xiaoling
on 2023/11/02 15:48
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Summary

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Title
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1 -SN50v3-LB LoRaWAN Sensor Node User Manual
1 +SN50v3-LB -- LoRaWAN Sensor Node User Manual
Parent
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1 +Main.User Manual for LoRaWAN End Nodes.WebHome
Author
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1 -XWiki.Saxer
1 +XWiki.Xiaoling
Content
... ... @@ -1,10 +1,8 @@
1 -(% style="text-align:center" %)
2 -[[image:image-20230515135611-1.jpeg||height="589" width="589"]]
1 +
3 3  
4 4  
4 +**Table of Contents:**
5 5  
6 -**Table of Contents：**
7 -
8 8  {{toc/}}
9 9  
10 10  
... ... @@ -19,7 +19,7 @@
19 19  
20 20  (% style="color:blue" %)**SN50V3-LB **(%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %)** 8500mA Li/SOCl2 battery**(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.
21 21  
22 -(% style="color:blue" %)**SN50V3-LB wireless part**(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
20 +(% style="color:blue" %)**SN50V3-LB wireless part**(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, and so on.
23 23  
24 24  (% style="color:blue" %)**SN50V3-LB **(%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors.
25 25  
... ... @@ -42,6 +42,7 @@
42 42  * 8500mAh Battery for long term use
43 43  
44 44  
43 +
45 45  == 1.3 Specification ==
46 46  
47 47  
... ... @@ -80,6 +80,7 @@
80 80  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
81 81  
82 82  
82 +
83 83  == 1.4 Sleep mode and working mode ==
84 84  
85 85  
... ... @@ -108,6 +108,7 @@
108 108  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
109 109  
110 110  
111 +
111 111  == 1.6 BLE connection ==
112 112  
113 113  
... ... @@ -126,7 +126,7 @@
126 126  == 1.7 Pin Definitions ==
127 127  
128 128  
129 -[[image:image-20230610163213-1.png||height="404" width="699"]]
130 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB%20--%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20230610163213-1.png?width=699&height=404&rev=1.1||alt="image-20230610163213-1.png"]]
130 130  
131 131  
132 132  == 1.8 Mechanical ==
... ... @@ -144,9 +144,8 @@
144 144  
145 145  SN50v3-LB has different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below:
146 146  
147 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627104757-1.png?rev=1.1||alt="image-20220627104757-1.png"]]
148 148  
149 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656298089706-973.png?rev=1.1||alt="1656298089706-973.png"]]
149 +[[image:image-20231101154140-1.png||height="514" width="867"]]
150 150  
151 151  
152 152  = 2. Configure SN50v3-LB to connect to LoRaWAN network =
... ... @@ -230,33 +230,33 @@
230 230  
231 231  (% style="color:#037691" %)**Frequency Band**:
232 232  
233 -*0x01: EU868
233 +0x01: EU868
234 234  
235 -*0x02: US915
235 +0x02: US915
236 236  
237 -*0x03: IN865
237 +0x03: IN865
238 238  
239 -*0x04: AU915
239 +0x04: AU915
240 240  
241 -*0x05: KZ865
241 +0x05: KZ865
242 242  
243 -*0x06: RU864
243 +0x06: RU864
244 244  
245 -*0x07: AS923
245 +0x07: AS923
246 246  
247 -*0x08: AS923-1
247 +0x08: AS923-1
248 248  
249 -*0x09: AS923-2
249 +0x09: AS923-2
250 250  
251 -*0x0a: AS923-3
251 +0x0a: AS923-3
252 252  
253 -*0x0b: CN470
253 +0x0b: CN470
254 254  
255 -*0x0c: EU433
255 +0x0c: EU433
256 256  
257 -*0x0d: KR920
257 +0x0d: KR920
258 258  
259 -*0x0e: MA869
259 +0x0e: MA869
260 260  
261 261  
262 262  (% style="color:#037691" %)**Sub-Band**:
... ... @@ -332,9 +332,8 @@
332 332  )))|(% style="width:189px" %)(((
333 333  Digital in(PB15) & Digital Interrupt(PA8)
334 334  )))|(% style="width:208px" %)(((
335 -Distance measure by:1) LIDAR-Lite V3HP
336 -Or
337 -2) Ultrasonic Sensor
335 +Distance measure by: 1) LIDAR-Lite V3HP
336 +Or 2) Ultrasonic Sensor
338 338  )))|(% style="width:117px" %)Reserved
339 339  
340 340  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656324539647-568.png?rev=1.1||alt="1656324539647-568.png"]]
... ... @@ -364,8 +364,7 @@
364 364  ADC(PA4)
365 365  )))|(% style="width:323px" %)(((
366 366  Distance measure by:1)TF-Mini plus LiDAR
367 -Or 
368 -2) TF-Luna LiDAR
366 +Or 2) TF-Luna LiDAR
369 369  )))|(% style="width:188px" %)Distance signal  strength
370 370  
371 371  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656376779088-686.png?rev=1.1||alt="1656376779088-686.png"]]
... ... @@ -472,7 +472,6 @@
472 472  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220820120036-2.png?width=1003&height=469&rev=1.1||alt="image-20220820120036-2.png" height="469" width="1003"]]
473 473  
474 474  
475 -
476 476  ==== 2.3.2.6  MOD~=6 (Counting Mode) ====
477 477  
478 478  
... ... @@ -585,9 +585,81 @@
585 585  When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
586 586  
587 587  
588 -=== 2.3.3  ​Decode payload ===
585 +==== 2.3.2.10  MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
589 589  
590 590  
588 +In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
589 +
590 +[[It should be noted when using PWM mode.>>||anchor="H2.3.3.12A0PWMMOD"]]
591 +
592 +
593 +===== 2.3.2.10.a  Uplink, PWM input capture =====
594 +
595 +
596 +[[image:image-20230817172209-2.png||height="439" width="683"]]
597 +
598 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
599 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:135px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:89px" %)**2**
600 +|Value|Bat|(% style="width:191px" %)(((
601 +Temperature(DS18B20)(PC13)
602 +)))|(% style="width:78px" %)(((
603 +ADC(PA4)
604 +)))|(% style="width:135px" %)(((
605 +PWM_Setting
606 +
607 +&Digital Interrupt(PA8)
608 +)))|(% style="width:70px" %)(((
609 +Pulse period
610 +)))|(% style="width:89px" %)(((
611 +Duration of high level
612 +)))
613 +
614 +[[image:image-20230817170702-1.png||height="161" width="1044"]]
615 +
616 +
617 +When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
618 +
619 +**Frequency：**
620 +
621 +(% class="MsoNormal" %)
622 +(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)**AT+PWMSET**(%%)**=0, **(% lang="EN-US" %)Frequency= 1000000/(%%)Pulse period（HZ）;
623 +
624 +(% class="MsoNormal" %)
625 +(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)**AT+PWMSET**(%%)**=1, **(% lang="EN-US" %)Frequency= 1000/(%%)Pulse period（HZ）;
626 +
627 +
628 +(% class="MsoNormal" %)
629 +**Duty cycle:**
630 +
631 +Duty cycle= Duration of high level/ Pulse period*100 ~(%).
632 +
633 +[[image:image-20230818092200-1.png||height="344" width="627"]]
634 +
635 +
636 +===== 2.3.2.10.b  Downlink, PWM output =====
637 +
638 +
639 +[[image:image-20230817173800-3.png||height="412" width="685"]]
640 +
641 +Downlink:  (% style="color:#037691" %)**0B xx xx xx yy zz zz**
642 +
643 + xx xx xx is the output frequency, the unit is HZ.
644 +
645 + yy is the duty cycle of the output, the unit is %.
646 +
647 + zz zz is the time delay of the output, the unit is ms.
648 +
649 +
650 +For example, send a downlink command: 0B 00 61 A8 32 13 88, the frequency is 25KHZ, the duty cycle is 50, and the output time is 5 seconds.
651 +
652 +The oscilloscope displays as follows:
653 +
654 +[[image:image-20230817173858-5.png||height="694" width="921"]]
655 +
656 +
657 +=== 2.3.3 ​Decode payload ===
658 +
659 +
591 591  While using TTN V3 network, you can add the payload format to decode the payload.
592 592  
593 593  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656378466788-734.png?rev=1.1||alt="1656378466788-734.png"]]
... ... @@ -658,6 +658,10 @@
658 658  (% style="color:red" %)**Note: If the ADC type sensor needs to be powered by SN50_v3, it is recommended to use +5V to control its switch.Only sensors with low power consumption can be powered with VDD.**
659 659  
660 660  
730 +The position of PA5 on the hardware after **LSN50 v3.3** is changed to the position shown in the figure below, and the collected voltage becomes one-sixth of the original.
731 +
732 +[[image:image-20230811113449-1.png||height="370" width="608"]]
733 +
661 661  ==== 2.3.3.5 Digital Interrupt ====
662 662  
663 663  
... ... @@ -804,9 +804,31 @@
804 804  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220628110012-12.png?rev=1.1||alt="image-20220628110012-12.png" height="361" width="953"]]
805 805  
806 806  
807 -==== 2.3.3.12  Working MOD ====
880 +==== 2.3.3.12  PWM MOD ====
808 808  
809 809  
883 +* (((
884 +The maximum voltage that the SDA pin of SN50v3 can withstand is 3.6V, and it cannot exceed this voltage value, otherwise the chip may be burned.
885 +)))
886 +* (((
887 +If the PWM pin connected to the SDA pin cannot maintain a high level when it is not working, you need to remove the resistor R2 or replace it with a resistor with a larger resistance, otherwise a sleep current of about 360uA will be generated. The position of the resistor is shown in the figure below:
888 +)))
889 +
890 + [[image:image-20230817183249-3.png||height="320" width="417"]]
891 +
892 +* (((
893 +The signal captured by the input should preferably be processed by hardware filtering and then connected in. The software processing method is to capture four values, discard the first captured value, and then take the middle value of the second, third, and fourth captured values.
894 +)))
895 +* (((
896 +Since the device can only detect a pulse period of 50ms when [[AT+PWMSET=0>>||anchor="H3.3.8PWMsetting"]] (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
897 +
898 +
899 +
900 +)))
901 +
902 +==== 2.3.3.13  Working MOD ====
903 +
904 +
810 810  The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
811 811  
812 812  User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
... ... @@ -822,8 +822,10 @@
822 822  * 6: MOD7
823 823  * 7: MOD8
824 824  * 8: MOD9
920 +* 9: MOD10
825 825  
826 826  
923 +
827 827  == 2.4 Payload Decoder file ==
828 828  
829 829  
... ... @@ -854,6 +854,7 @@
854 854  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
855 855  
856 856  
954 +
857 857  == 3.2 General Commands ==
858 858  
859 859  
... ... @@ -902,6 +902,7 @@
902 902  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
903 903  
904 904  
1003 +
905 905  === 3.3.2 Get Device Status ===
906 906  
907 907  
... ... @@ -951,6 +951,7 @@
951 951  * Example 4: Downlink Payload: 06000201  **~-~-->**  AT+INTMOD3=1
952 952  
953 953  
1053 +
954 954  === 3.3.4 Set Power Output Duration ===
955 955  
956 956  
... ... @@ -984,6 +984,7 @@
984 984  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
985 985  
986 986  
1087 +
987 987  === 3.3.5 Set Weighing parameters ===
988 988  
989 989  
... ... @@ -1010,6 +1010,7 @@
1010 1010  * Example 3: Downlink Payload: 08020FA0  **~-~-->**  AT+WEIGAP=400.0
1011 1011  
1012 1012  
1114 +
1013 1013  === 3.3.6 Set Digital pulse count value ===
1014 1014  
1015 1015  
... ... @@ -1034,6 +1034,7 @@
1034 1034  * Example 2: Downlink Payload: 0902000003E8  **~-~-->**  AT+SETCNT=2,1000
1035 1035  
1036 1036  
1139 +
1037 1037  === 3.3.7 Set Workmode ===
1038 1038  
1039 1039  
... ... @@ -1059,6 +1059,36 @@
1059 1059  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1060 1060  
1061 1061  
1165 +
1166 +=== 3.3.8 PWM setting ===
1167 +
1168 +
1169 +Feature: Set the time acquisition unit for PWM input capture.
1170 +
1171 +(% style="color:blue" %)**AT Command: AT+PWMSET**
1172 +
1173 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1174 +|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1175 +|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
1176 +0(default)
1177 +
1178 +OK
1179 +)))
1180 +|(% style="width:154px" %)AT+PWMSET=0|(% style="width:196px" %)The unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ.   |(% style="width:157px" %)(((
1181 +OK
1182 +
1183 +)))
1184 +|(% style="width:154px" %)AT+PWMSET=1|(% style="width:196px" %)The unit of PWM capture time is millisecond.  The capture frequency range is between 5HZ and 250HZ. |(% style="width:157px" %)OK
1185 +
1186 +(% style="color:blue" %)**Downlink Command: 0x0C**
1187 +
1188 +Format: Command Code (0x0C) followed by 1 bytes.
1189 +
1190 +* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
1191 +* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
1192 +
1193 +
1194 +
1062 1062  = 4. Battery & Power Consumption =
1063 1063  
1064 1064  
... ... @@ -1081,10 +1081,11 @@
1081 1081  
1082 1082  **Methods to Update Firmware:**
1083 1083  
1084 -* (Recommanded way) OTA firmware update via wireless:   [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
1085 -* Update through UART TTL interface.**[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
1217 +* (Recommanded way) OTA firmware update via wireless: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**
1218 +* Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
1086 1086  
1087 1087  
1221 +
1088 1088  = 6. FAQ =
1089 1089  
1090 1090  == 6.1 Where can i find source code of SN50v3-LB? ==
... ... @@ -1094,6 +1094,23 @@
1094 1094  * **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**
1095 1095  
1096 1096  
1231 +
1232 +== 6.2 How to generate PWM Output in SN50v3-LB? ==
1233 +
1234 +
1235 +See this document: **[[Generate PWM Output on SN50v3>>https://www.dropbox.com/scl/fi/r3trcet2knujg40w0mgyn/Generate-PWM-Output-on-SN50v3.pdf?rlkey=rxsgmrhhrv62iiiwjq9sv10bn&dl=0]]**.
1236 +
1237 +
1238 +== 6.3 How to put several sensors to a SN50v3-LB? ==
1239 +
1240 +
1241 +When we want to put several sensors to A SN50v3-LB, the waterproof at the grand connector will become an issue. User can try to exchange the grand connector to below type.
1242 +
1243 +[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
1244 +
1245 +[[image:image-20230810121434-1.png||height="242" width="656"]]
1246 +
1247 +
1097 1097  = 7. Order Info =
1098 1098  
1099 1099  
... ... @@ -1118,6 +1118,7 @@
1118 1118  * (% style="color:red" %)**NH**(%%): No Hole
1119 1119  
1120 1120  
1272 +
1121 1121  = 8. ​Packing Info =
1122 1122  
1123 1123  
... ... @@ -1133,6 +1133,7 @@
1133 1133  * Weight / pcs : g
1134 1134  
1135 1135  
1288 +
1136 1136  = 9. Support =
1137 1137  
1138 1138  
... ... @@ -1139,3 +1139,27 @@
1139 1139  * 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.
1140 1140  
1141 1141  * 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 [[support@dragino.cc>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.cc]]
1295 +
1296 +
1297 +
1298 += 10. FCC Warning =
1299 +
1300 +
1301 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1302 +
1303 +This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1304 +
1305 +(% style="color:red" %)**Note:**(%%) 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:
1306 +
1307 +—Reorient or relocate the receiving antenna.
1308 +
1309 +—Increase the separation between the equipment and receiver.
1310 +
1311 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1312 +
1313 +—Consult the dealer or an experienced radio/TV technician for help.
1314 +
1315 +
1316 +This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1317 +
1318 +This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
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