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19	19
20	20	== **2.1  Point To Point** ==
21	21
22		-=== **2.1.1 Overview** ===
23	23
24		-
25	25	[[image:image-20220602111219-1.png||height="472" width="972"]]
26	26
27	27
28		-=== **2.2.2 Configure** ===
	26	+(% class="wikigeneratedid" id="H2.2.Configure" %)
	27	+(% style="color:blue" %)**Configure:**
29	29
30		-
31	31	(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
32	32	|=**A's configuration**|=**B's configuration**
33	33	|AT+GROUPMOD=0|AT+GROUPMOD=0
...	...	@@ -40,87 +40,19 @@
40	40	|AT+DI2TODO2=2 |AT+DI2TODO2=2
41	41	|AT+DI2TORO2=2|AT+DI2TORO2=2
42	42
	41	+== **2.2  Point To Mult-Point ** ==
43	43
44	44
45		-=== **2.2.3 Serial port display** ===
46		-
47		-
48		-(% class="wikigeneratedid" %)
49	49	[[image:image-20220602111219-2.png]]
50	50
51	51
52		-(% class="wikigeneratedid" %)
53	53	[[image:image-20220602111219-3.png]]
54	54
55		-(% class="wikigeneratedid" %)
56		-If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
57		-
58		-
59		-== **2.2  Point To Mult-Point ** ==
60		-
61		-=== **2.2.1 Overview** ===
62		-
63		-
64		-[[image:1654152390874-192.png]]
65		-
66		-
67		-=== **2.2.2  Configure** ===
68		-
69		-
70		-(% style="color:#4f81bd" %)**Configuration of the TX group:**
71		-
72		-AT+GROUPMOD=0,2
73		-
74		-AT+TXCHS=868700000
75		-
76		-AT+RXCHS=869000000
77		-
78		-AT+TRIG1=2,50
79		-
80		-AT+TRIG2=2,50
81		-
82		-AT+DI1TODO1=1
83		-
84		-AT+DI1TORO1=1
85		-
86		-AT+DI2TODO2=1
87		-
88		-AT+DI2TORO2=1
89		-
90		-
91		-(% style="color:#4f81bd" %)**Configuration for RX group number 1:**
92		-
93		-AT+GROUPMOD=1,1
94		-
95		-AT+TXCHS=869000000
96		-
97		-AT+RXCHS=868700000
98		-
99		-
100		-(% style="color:#4f81bd" %)**Configuration for RX group number 2:**
101		-
102		-AT+GROUPMOD=1,2
103		-
104		-AT+TXCHS=869000000
105		-
106		-AT+RXCHS=868700000
107		-
108		-
109		-=== **2.2.3 Serial port display** ===
110		-
111		-
112		-[[image:image-20220602144747-1.png]]
113		-
114		-
115		-[[image:image-20220602144747-2.png]]
116		-
117	117	(((
118		-If the TX group does not receive all the ACK replies from the RX group, it will retransmit up to 4 times, each time interval is 30 seconds, and the retransmission UplinkCounter will not increase.
	50	+If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
119	119	)))
120	120
121	121
122		-
123		-
124	124	== **2.3 AT command** ==
125	125
126	126

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