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...	...	@@ -26,6 +26,7 @@
26	26
27	27	=== **2.2.2 Configure** ===
28	28
	29	+
29	29	(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
30	30	|=**A's configuration**|=**B's configuration**
31	31	|AT+GROUPMOD=0|AT+GROUPMOD=0
...	...	@@ -39,10 +39,10 @@
39	39	|AT+DI2TORO2=2|AT+DI2TORO2=2
40	40
41	41
42		-(% class="wikigeneratedid" %)
43		-2.2.3 Serial port display
44	44
	44	+=== **2.2.3 Serial port display** ===
45	45
	46	+
46	46	(% class="wikigeneratedid" %)
47	47	[[image:image-20220602111219-2.png]]
48	48
...	...	@@ -54,18 +54,71 @@
54	54	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.
55	55
56	56
57		-
58	58	== **2.2  Point To Mult-Point ** ==
59	59
	60	+=== **2.2.1 Overview** ===
60	60
61	61
	63	+[[image:1654152390874-192.png]]
62	62
63	63
	66	+=== **2.2.2  Configure** ===
	67	+
	68	+
	69	+(% style="color:#4f81bd" %)**Configuration of the TX group:**
	70	+
	71	+AT+GROUPMOD=0,2
	72	+
	73	+AT+TXCHS=868700000
	74	+
	75	+AT+RXCHS=869000000
	76	+
	77	+AT+TRIG1=2,50
	78	+
	79	+AT+TRIG2=2,50
	80	+
	81	+AT+DI1TODO1=1
	82	+
	83	+AT+DI1TORO1=1
	84	+
	85	+AT+DI2TODO2=1
	86	+
	87	+AT+DI2TORO2=1
	88	+
	89	+
	90	+(% style="color:#4f81bd" %)**Configuration for RX group number 1:**
	91	+
	92	+AT+GROUPMOD=1,1
	93	+
	94	+AT+TXCHS=869000000
	95	+
	96	+AT+RXCHS=868700000
	97	+
	98	+
	99	+(% style="color:#4f81bd" %)**Configuration for RX group number 2:**
	100	+
	101	+AT+GROUPMOD=1,2
	102	+
	103	+AT+TXCHS=869000000
	104	+
	105	+AT+RXCHS=868700000
	106	+
	107	+
	108	+=== **2.2.3 Serial port display** ===
	109	+
	110	+
	111	+[[image:image-20220602144747-1.png]]
	112	+
	113	+
	114	+[[image:image-20220602144747-2.png]]
	115	+
64	64	(((
65		-
	117	+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.
66	66	)))
67	67
68	68
	121	+
	122	+
69	69	== **2.3 AT command** ==
70	70
71	71