SNM401 ad hoc network module 自组网模块规格书

SNM401自组网模块规格书

1、产品描述

SNM401无中心自组网模块实现了各模块相互之间的无中心远距离通信，采用全球最新的LDPC编解码技术，相对于传统电台所使用的RS级联卷积码可有5dB的编码增益，同时通过 “自中继无线通信”技术，创新性地实现各模块之间自动中继，从而大大提高了覆盖效果和传输距离。SNM401采用自组网无线通信技术，任意节点可以接收处理来自多个节点同时转发的同一信号，将这些来自不同节点转发的信号进行信号合并，最大可能地解调原始信息，具有更大的传输距离和更高的传输可靠性。自组网无线通信技术不需要路由，多个节点通过接收信号质量和场强自动判决是否启动转发，将中继由多跳单点中继提升为多跳多点中继，将中继从线状中继提升为网状中继，中继网络中任意节点发生断线脱网时，中继网络中的其它中继线路正常工作，使得中继效果不受影响。

2、产品特点

◆工作频率：400-500MHz

◆单跳传输距离：3~ 5km

◆动态拓扑收敛：1 Milliseconds

◆发射功率：1W

◆接收灵敏度：-127dBm

◆工作电压：3.5-4.5V

◆信噪比门限：1dB

◆信道间隔：12.5KHz

◆频率稳定度：1ppm

◆互调：65dB

◆加密：256AES

◆杂散响应抗扰性：75dB

◆邻道选择性：[email protected] KHzz

◆工作温度：-40～+85℃

◆模块尺寸：33.5X42X3.4 MM

3、应用领域

◆物联网 ◆单兵系统 ◆应急广播

◆无人机 ◆实时远程控制 ◆数字对讲

◆应急通信 ◆机器人 ◆无线数据传输

4、工作参数

表一：工作参数表

参数	条件	最小	典型	最大	单位
工作频段		400		500	MHz
Māfana ʻo e ʻeá		-40	25	+85	℃
Ko hono fakalele ʻo e voltage		3.5	4	4.5	V
ʻAve ʻa e mālohí			30		dBm
Ongoʻingofua		-130	-127	-125	dBm
最大射频输入功率				+33	dBm
串口波特率			115200		bps
休眠电流	@ EN=0		40		UA
接收电流			160		Fine'eiki
发射瞬时电流	@VCC==4V，1W			1800	Fine'eiki
发射平均电流	@VCC==4V，1W		600		Fine'eiki
音频输入电压				1.5	VPP
音频输出阻抗			150		Ohm

注：如果模块工作条件超过上述各项极限值，可能对模块造成永久性损坏。

5、模块引脚及定义

SNM401-Ad-Hoc-Network-Module-pin-define — SNM401-Tuʻuaki-Hoc-Network-Module-pin-define

图 1 SNM401 引脚图

表 2 类型缩写表

缩写	描述
ʻAI	Fakatātā ʻo e fakamatalá
AO	Analog output
AIO	Analog bi-fakahinohino
NGAAHI KAUTAHA Teseletí	Nāunau fakaʻilekitulō
FAI	Digital output
DIO	Fakahinohino bi fakaʻilekitulonika
P	Malohi
L	Kelekelé

表 3 SNM401引脚定义

Fika ʻo e PIN	Hingoa ʻo e PIN	Fa'ahinga	Fakamatala
1	GND	L	GND
2	LOO	AIO	天线口
3	GND	L	GND
4	GND	L	GND
5	V-BAT	P	外接 3.5V-4.5V 电池或电源，建议 4V
6	V-BAT	P
7	GND	L	GND
8	GND	L	GND
9	TX_STATE	FAI	模块发射指示信号，高电平为发射
10	RX_STATE	FAI	模块接收指示信号，高电平为接收
11	NC		ʻIkai ha fehokotaki
12	NC		ʻIkai ha fehokotaki
13	GND	L	GND
14	TXD	FAI	串口数据发射脚
15	RXD	NGAAHI KAUTAHA Teseletí	串口数据接收脚
16	SETI	NGAAHI KAUTAHA Teseletí	模块串口配置信号，高电平时配置参数，低电平时收发数据
17	EN	NGAAHI KAUTAHA Teseletí	模块开启使能信号，高电平开启，低电平关闭
18	GND	L	GND
19	PRO1	DIO	可编程定义管脚
20	PRO2	DIO	可编程定义管脚

注：模块内部经过 3.3V LDO 稳压，所有的数字 IO 均为 3.3V 电平。

6、封装尺寸

SNM401-Ad-Hoc-Network-Module-size-dimension — SNM401-Tuʻuaki-Hoc-Network-Module-size-size

图 2 SNM401 尺寸图

SNM401-Ad-Hoc-Network-Module-Package-diagram — SNM401-Tuʻuaki-Hoc-Network-Module-Package-Package

图 3 SNM401 封装图

7、LAYOUT 注意事项

1、SNM401 模块工作在 400-500MHz，应避免各种因素对无线收发的影响。

2、模块下方铺大片 GND，走线尽量往外围延伸。

3、建议在基板上的模块贴装位置使用绝缘材料进行隔离，例如在该位置放一个整块的丝

印。

4、尽量走一条短而粗电源线给模块，推荐铜线宽度80mil，去耦电容尽量靠近电源引脚放置。

8、软件配置

8.1 参数配置

用户可通过串口进行参数获取配置，串口波特率 115200，数据位 8bit，停止位 1bit，无奇偶校验位。

表 4 串口包格式

串口表格包
识别字	长度	指令	指令回复/回复内容
1Fakahū (BYTE)	1Fakahū (BYTE)	1Fakahū (BYTE)	NBytte

8.1.1 识别字

识别字固定为 0x68。

8.1.2 长度

长度 = 指令 + 指令内容/回复内容。

8.1.3 指令

表 5 串口指令表

功能	指令	指令内容	回复内容
获取射频参数	0x00	无	tuʻo lahi(4Fakahū (BYTE))+mālohi(1Fakahū (BYTE))+配置状态(1Fakahū (BYTE))+底噪(2Fakahū (BYTE))+基带版本号(1Fakahū (BYTE))
设置射频参数	0x01	tuʻo lahi(4Fakahū (BYTE))+mālohi(1Fakahū (BYTE))	无
获取数据中继等级	0x0C	无	数据中继等级(1Fakahū (BYTE))
设置数据中继等级	0x0D	数据中继等级(1Fakahū (BYTE))	无
获取密钥	0x0E	无	密钥(32Fakahū (BYTE))
设置密钥	0x0F	密钥(32Fakahū (BYTE))	无
获取模块版本	0x12	无	模块名称+版本号
模块就绪	0x55	无	无
保存配置	0x66	无	无
数据接收	0xA2	无	透传数据(NByte)
数据发送	0xB2	透传数据(NByte)	无

8.1.4 指令内容/回复内容

8.1.4.1 获取射频参数

tuʻo lahi：单位为 Hz，设置范围为 400000000~5000000000，精度为 500HHz。

mālohi：1-高功率 1W，0-低功率 0.5W，默认为高功率 1W。

配置状态：指示射频配置状态，0-未初始化，1-配置中，2-配置成功。

底噪：指示当前频率噪声强度，只有当配置状态为 2 时才有意义。

基带版本号：高 4bit 代表主版本号，低 4bit 代表次版本号。

配置包：0x68 0x01 0x00

返回包：0x68 0x0A 0x00 频率功率配置状态底噪基带版本号

8.1.4.2 设置射频参数

配置射频参数后，须等待配置成功后（约 2 秒），模块才能正确进入设定工作状态。

配置包：0x68 0x06 0x01 频率功率

返回包：0x68 0x01 0x01

8.1.4.3 获取数据中继等级

SH无中心自组网技术是同播网状中继方式，不需要路由，可大幅度提高覆盖范围。中继跳数 N 是指在数据传输时可以进行中继的跳数，最大中继跳数为 16。每增加一跳，传输距离会增加一倍，但传输时间会相应增加，如下表所示。

表 6 中继等级比较

中继跳数	传输字节数	传输时间
N	<36	N * 50ms
N	37-72	N * 100ms
N	73-108	N * 150ms
N	109-144	N*200ms
N	145-180	N * 250ms
N	181-216	N * 300ms
N	217-252	N * 350ms
N	253-288	N * 400ms

配置包：0x68 0x01 0x0C

返回包：0x68 0x02 0x0C 数据中继等级

8.1.4.4 设置数据中继等级

配置包：0x68 0x02 0x0D 数据中继等级

返回包：0x68 0x01 0x0D

8.1.4.5 获取密钥

密钥用于通信加密，模块将自动丢弃密钥与自身密钥不一致的语音信息、数据信息，密钥默认为全 0。

配置包：00x01 0x0E x68

返回包：0x68 0x21 0x0E 密钥

8.1.4.6 设置密钥

配置包：0x68 0x21 0x0F 密钥

返回包：0x68 0x01 0x0F

8.1.4.7 获取模块版本

配置包：0x68 0x01 0x12

返回包：0x68 0x15 0x12 0x53 0x69 0x6D 0x75 0x6C 0x48 0x6F 0x63 0x32 0x36 0x31 0x38 0x5F 0x56 0x31 0x2E 0x30 0x2E 0x30 0x00 即“SimulHoc2618_V1.0.0”

8.1.4.8 模块就绪

指令将在设备上电初始化完成后自动发送，指示设备已就绪。

返回包：0x68 0x01 0x55

8.1.4.9 保存配置

指令将所有设置保存至 Flash，重上电后将直接使用已保存配置。

配置包：0x68 0x01 0x66

返回包：0x68 0x01 0x66

8.1.4.10 数据接收

当 SET 引脚为低电平时，模块将接收到的数据包直接透传给用户。长度根据实际透传数据长度变化。

返回包：0x68 长度 0xA2 透传数据

8.1.4.11 数据发送

当 SET 引脚为低电平时，才能进行数据发送，单次发送数据不超过 36 字节。长度根据实际透际透传数据长度变化。若收到返回包，表明本次数据发送失败。

配置包：0x68 长度 0xB2 透传数据

返回包：0x68 0x01 0xB

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'Enitena

FAQs fekauʻaki mo e wireless video Transmitter mo e Receiver

1. Ko e ha e faʻahinga vitio ʻoku fakahu ʻe he taulanga ʻoku maʻu ʻe hoʻo vitio wireless transmitter?

ʻOku maʻu ʻe heʻetau vitio wireless transmitters ʻa e faʻahinga vitio ko ʻeni interfaces: HDMI 1080P mo e 4K HDMI, CVBS composite, SDI, AHD, IP Ethernet, BNC, pe talamai pe ko e ha e faʻahinga ʻoku ke fie maʻu, ʻe liliu ʻemau ʻenisiniá ke feau hoʻo fie maʻú.

2. Ko e ha ʻa e mamaʻo ʻoku poupouʻi ʻe hoʻo vitio wireless transmitter?

ʻE lava ke liliu ʻetau mamaʻo ʻaki hano tanaki atu ha malohi amplifiers. ʻI he lolotongá ni, ko e ngaahi tefitoʻi meʻa mahuʻingá ko e 15km, 30km, 50km, 80km, 100km , mo e kilomita ʻe 150, ʻa ia ʻoku makatuʻunga ʻi he ngaahi fie maʻu ʻa e kau fakatau.

ʻIo, ko e mamaʻo ʻo e fetuʻutaki ʻoku hiki atu ʻi ʻolungá ʻoku ʻi loto kotoa ia LOSI ʻa e laine ʻo e mamata. Kapau ʻoku ʻi ai ha ngaahi faingataʻa ʻi he vahaʻa ʻo e transmitter mo e tokotaha ʻoku ne puke ʻa e foaki, NLOS (ʻa e ʻikai ke mamata), ʻoku fakasiʻisiʻi ʻaupito ʻa e mamaʻo ʻo e feʻaveʻaki paʻanga, ko e kilomita pe kilomita ʻe 2, ʻo makatuʻunga ʻi he lahi ʻo e ngaahi faingataʻa mo e ʻatakai wireless fakalotofonua.

3. Ko e ha ʻa e founga ʻe taha pe ua? Fanga kiʻi faingofua vs vaeua-duplex, duplex kakato

Founga ʻe taha ʻuhinga, Te tau lava pe ʻo fakahu mo download ʻa e vitioo pe fakamatala mei he wireless video transmitter ki he tokotaha ʻoku ne puke ʻa e foaki ʻi he tafaʻaki pe ʻe taha, pea he ʻikai ke tau lava ʻo upload ha vitiō pe fakamatala mei he tokotaha ʻokú ne puke ʻa e fakamafolá (receiver) ki he tokotaha ʻokú ne puke atu ʻa. ʻOku toe ui foki ʻa e faʻahinga ko ʻení ko e simplex.

Tafaʻaki ʻe ua ʻuhinga ʻoku, ʻikai ngata pē ʻi heʻetau lava ʻo download ʻa e vitioó pe fakamatalá mei heʻetau wireless transmitter ki he tokotaha ʻokú ne puke atu ʻa e fakamafolá, ka te tau lava foki ʻo upload ʻa e vitioó pe fakamatala mei he tokotaha ʻokú ne puke ʻa e fakamatalá ki he tokotaha ʻokú ne puke ʻa e fakamafolá. ʻOku feʻunga ʻaupito ʻeni ki hono fakalele drones. He ʻikai ngata pe ʻi hoʻo sio ki he vitio moʻoni ʻoku ʻave mei he te, ka ke upload foki ʻa e fekau ke puleʻi ʻa e te pe ko e fekau ke puleʻi ʻa e meʻa faita PTZ ke liliu ʻa e tuliki ki he transmitter. ʻE lava ke ngāue ʻeni he taimi pē ko iá. Naʻe toe fakahingoa foki ʻa e faʻahinga ko ʻeni ko e vaeua-dulpex pe duplex kakato.

Kātaki ʻo vakaiʻi e fakaikiiki ʻi he fehokotakiʻanga ʻi laló. https://ivcan.com/request-a-quote-of-wireless-video-transmission/#simplex

4. ʻOku poupouʻi nai ʻe hoʻo foʻi vitio HDMI transmitter encryption mo receiver decryption?

Ko e lahi taha ʻo e vitio wireless transmitters tokoni he taimi ni AES128 pe AES256 bit encryption mo e decryption, ʻo makatuʻunga ʻi he sīpinga ʻokú ke filí. Kātaki ʻo fetuʻutaki mai kiate kimautolu ke fakapapauʻi.

5. ʻE lava nai ke liliu ʻa e tuʻo lahi ʻo e transmitter vitio wireless hili hono maʻu ʻe he kau fakaʻaongaʻi angamaheni ʻa e koloa?

Ko e frequencies ʻo e vitio wireless transmitter mo e tokotaha ʻoku ne puke ʻa e vitio wireless ʻe lava ke liliu. ʻOku fie maʻu ke fakatau ʻe he niʻihi ʻoku nau fakaʻaongaʻí ha toe ngaahi seti.

Ka neongo ia, fakakaukau kuo ʻosi fakaleleiʻi ʻa e malohi amplifier mo e ʻenitena ʻi ha ngaahi meʻa pau ʻi he taimi ʻoku ʻave ai ʻa e koloa. Kapau ʻe liliu ʻe he tokotaha ngāue ki he polokalamá ʻa e tuʻo lahi hono ʻavé, ko e ngaahi meʻa ʻoku fekauʻaki fakatupulaki e mālohí, ʻOku totonu foki ke liliu transmitter ʻenitena mo e receiver ʻenitena ki he tuʻo lahi tatau pe, pea ʻoku fie maʻu ke mateuteu ʻa e kau ngāue ko ʻení. Kapau ʻoku ʻikai, te ne fakatupu ʻa e tuʻo lahi ʻo e transmitter vitio wireless ke kehe mei he tuʻo lahi ʻo e ʻenitena, ko hono ʻai ke faingataʻa hono kai e meʻa. Ko ia, kātaki ʻo fakapapauʻi ke fakahā mai ʻa e tuʻo lahi totonu ʻokú ke fie maʻú kimuʻa pea toki ʻota e ʻotá.

Kapau ko ha tuʻunga malu pe ʻikai fakahāhāholo, te ke lava fakaʻaongaʻi e encryption mo e decryption ngaahi ngāue ʻa e transmitter mo e receiver, ʻa ia te ne lava ʻo fakapapauʻi ʻoku fakapulipuli hoʻo feʻaveʻaki vitioo. .

6. Naʻá ku sio ʻoku faitatau ʻaupito hoʻo sīpingá mo ʻeku ngaahi fie maʻú, ka ʻoku fie maʻu ke u fulihi ha taha ʻo e ngaahi fakangatangata, ʻoku malava pē ia?

'Io, kotoa ʻetau koloa ʻe lava ke fakafeʻungaʻi ʻa e ngaahi fakangatangata fakatatau ki he ngaahi fie maʻu ʻa e kasitoma. Kapau ʻoku ʻi ai haʻo kole makehe, kātaki ʻo talamai ke mau ʻiloʻi ʻi he fehokotakiʻanga ʻi laló.

https://ivcan.com/request-a-quote-of-wireless-video-transmission/

7. Ko e hā e meʻa ʻoku totonu ke u faí kapau ʻoku fakahaaʻi ʻe he tokotaha ʻoku ʻaʻaku e vitiō wireless ha fakaʻilonga vaivai?

Liliu ʻa e feituʻu ʻo e tokotaha ʻokú ne puke ʻa e fakamatalá ke fakaʻehiʻehi mei ha kaunoa fakalotofonua mei ha ngaahi ʻatakai malohi hiki fakamakinito.
Fakapapauʻi ʻoku ʻutena ʻa e ʻoku fakatou tuʻu ki ʻolunga ʻa e transmitter mo e receiver.
Kataki ʻo hiki hake ʻa e ʻu ʻenitena ʻo e transmitter pea foaki ki he tauhi ha faikehekehe maʻolunga pau.
Kātaki ʻo vakavakai takai ke fakapapauʻi ʻoku ʻoku ʻikai ha fakafeʻatungia ʻi he vahaʻa ʻo e transmitter mo e receiver.
Liliu ʻa e fakataukeiʻí ʻo e tokotaha ʻoku ne puke ʻa e ʻenitena.
Kapau ʻoku ʻikai ngaue, ʻahiʻahi ʻunuakiʻi ʻa e receiver ke ofi ki he tuʻunga ʻo e transmitter ke vakai pe ʻoku lahi ange ia ʻi he mamaʻo ʻo e wireless.
Pe fakakaukauʻi tānaki atu ha sīsini ʻo hono ʻavé ʻi he vahaʻa ʻo e transmitter mo e receiver.
ʻOku totonu ke maʻolunga taha ʻa e ʻenitena mei he kelekele ʻe lava, ʻi he taimi ʻe maʻu ai ʻe he kelekelé ʻa e fakaʻilonga ʻoku ʻavé.

8. Te u lava nai ʻo fakatau ʻeni ʻo e transmitters mo e amplifiers pe? ʻOku ou loto ke fakatahatahaʻi kinautolu ki heʻeku meʻangāué.

Te tau lava, ʻio, meʻakai feʻunga wireless video Transmitter ʻeni mo e ngaahi meʻa fakamālohisino ʻoku ongo mālohí.

Ki he sīpinga ʻuluaki ʻo e siví, ʻOku ou fokotuʻu atu ke ke fakatau kotoa ʻa e ngaahi koloa koeʻuhi he kuo optimized ʻe heʻetau kau ʻenisinia ʻa e ngaahi fakangatangata ke aʻusia ʻa e faiva lelei taha.

Hili hoʻo fakakakato hono fakapapauʻi hoʻo sivi, te ke lava ʻo toʻo ʻa e meʻa naʻe hokó pe ngoto ʻa e ʻeá, fokotuʻu ia ʻi hoʻo device, pea fakafeʻungaʻi maʻu pē ʻa e ngaahi fakangatangatá ke aʻusia ʻa e ngāue lelei tahá. ʻI he kahaʻú, te ke lava ʻo fakatau pē ʻa e ngaahi meʻa pe nāue ʻokú ke fie maʻú.

9. Te ke lava ʻo toʻo ha foʻi vitio sivi ke u sio ki ai kimuʻa pea fakafolau atu?

ʻIo, ʻoku toe mahino foki kiate kitautolu ʻoku fuʻu mamafa ʻaupito hono feʻaveʻaki ʻo e ngaahi vitiō wireless mo kinautolu ʻoku nau tali iá. ʻOku ke mamaʻo mei he fale ngaohiʻanga Siaina. pea ʻamanaki ʻe feʻunga ʻa e ngaahi koloa ʻokú ke maʻú mo e ngāue lelei tahá.

Kapau te ke tokanga makehe ki ha parameter pe ngaue pau, te tau lava ʻo fai ha ngaahi vitiō sivi ʻo makatuʻunga ʻi he ngaahi meʻa ʻokú ke fie sio aí, kātaki ʻo ongoʻi tauʻatāina ke fetuʻutaki mai kiate kimautolu. He ʻikai ʻave fakahangatonu ia kiate koe taʻe te ke fakangofua.

10. Founga hono siviʻi ʻo e latency ʻo wireless vitio transmitters mo tali?

Ke siviʻi hono fakatoloi ʻo e vitio wireless transmitter mo e receiver, ʻoku fie maʻu ke tau fai ha sivi ʻe ua.

Ko e ʻuluaki ke siviʻi hono fakatoloi mei he meʻa faitaa ki he fakaʻaliʻali.

Ko hono ua ko e meʻa faitaa, tanaki atu ki ai mo e fakaʻaliʻali fakataha mo e ʻimisi wireless transmitter mo hono fakatoloi ʻo e tokotaha ʻoku ne maʻu e foaki.

Kole ʻa e ongo ola ʻo e sivi ko hono fakatoloi moʻoni ia ʻo e vitio wireless transmitter mo e receiver.

ʻI heʻene hoko ko ha foʻi vitio HDMI fakapalofesinale ʻoku ʻikai ke ʻi ai ha wireless transmitter mo e tokotaha ʻoku ne fai e foaki mo e kautaha ngaohi kapeti ʻi Siaina Shenzhen, ʻoku tau ʻomi ʻa e foʻi vitio lelei taha ki he wireless transmitter mo e receiver ʻi ha ngaahi taʻu lahi, pea mau maʻu ha ongoongo lelei mo vakaiʻi lelei taha.

ʻOku ʻi ai ha motolo kautaha fotunga ʻiloa ʻe niʻihi ʻo e vitio wireless transmitters, hangē ko e Blackmagic, Ngaahi maumau ʻa Holyland 300 400s, Accsoon cine mata 5g, RavenEye, Zhiyun, Kiʻi puha ʻo e meʻangāué, toʻo ʻa e ngāué, CVW VAVE 800, dahua, iogear, Artek pate-225k, microlite, nyrius, teradek.

Ko e patiseti lelei taha ki he fakamafola wireless transmitter pea ʻoku lahi e ngaahi polokalama ʻoku fakaʻaongaʻi ʻe he tokotaha ʻoku ne maʻu e foaki, ki he TV ʻe 4K, Meʻa faita maluʻi ʻa e CCTV, meʻa faitā talifaki ʻo e meʻ, PTZ naunau faita vitioo, puha ʻuhila, komipiutá, sony camcorder, wifi polokalama vitio ʻo e konifelenisi, DSLR Kuo TATANAKI, UAV te, komipiuta toʻotoʻo ʻa e PC, mīsini fakaʻata lahi, ʻi loto kā, iPhone iPad, streaming hangatonu, Meʻafaita sipoti ko ePro, pi raspberry, Xbox PlayStation.

Ko e foʻi vitio kakato ʻo e HD, ongó, fehokotakiʻanga fakamatala siʻisiʻi taha 1080P wireless video transmitter pea ʻoku lahi e input mo e output connectors ʻa e tokotaha ʻoku ne maʻu ia, hangē ko AV composite CVBS, HDMI, SDI, BNC, VGA, USB.

ʻOku ʻi ai ha 170-806Mhz ʻi he vitio wireless transmitter ʻoku ne ʻave ʻa e TX RX, 1.2ghz, 2.4L, 5.8L, māʻulalo tahá kae ʻikai noa ʻene ʻosí. Koeʻuhí ke lava ʻo poupouʻi ʻa e vāmamaʻo lōloá, ʻoku 10w ʻa e malohi amplifier, 20Watts, pea naʻa mo 30W.

Ko e ha ha fakatau lelei taha FHD wireless transmitter ʻi ha totongi maʻamaʻa? ʻOku totonu ke ne fakakaukauʻi hoʻo fie maʻu fakaikiiki, fili faingofua hono faingofua, ʻikai totongi mamafa, kapau ʻoku ʻi ai haʻo veiveiua, Kataki 'o fakahoko ʻa e kole ha kupuʻi lea fōmú, ʻe ʻoatu ʻe heʻemau ʻenisinia ha founga ke fakaleleiʻi ʻaki.

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