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...	...	@@ -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
	43	+=== **2.2.3 Serial port display** ===
45	45
	45	+
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
	59	+=== **2.2.1 Overview** ===
60	60
61	61
	62	+[[image:1654152390874-192.png]]
62	62
63	63
	65	+=== **2.2.2  Configure** ===
	66	+
	67	+
	68	+(% style="color:#4f81bd" %)**Configuration of the TX group:**
	69	+
	70	+AT+GROUPMOD=0,2
	71	+
	72	+AT+TXCHS=868700000
	73	+
	74	+AT+RXCHS=869000000
	75	+
	76	+AT+TRIG1=2,50
	77	+
	78	+AT+TRIG2=2,50
	79	+
	80	+AT+DI1TODO1=1
	81	+
	82	+AT+DI1TORO1=1
	83	+
	84	+AT+DI2TODO2=1
	85	+
	86	+AT+DI2TORO2=1
	87	+
	88	+
	89	+(% style="color:#4f81bd" %)**Configuration for RX group number 1:**
	90	+
	91	+AT+GROUPMOD=1,1
	92	+
	93	+AT+TXCHS=869000000
	94	+
	95	+AT+RXCHS=868700000
	96	+
	97	+
	98	+(% style="color:#4f81bd" %)**Configuration for RX group number 2:**
	99	+
	100	+AT+GROUPMOD=1,2
	101	+
	102	+AT+TXCHS=869000000
	103	+
	104	+AT+RXCHS=868700000
	105	+
	106	+
	107	+=== **2.2.3 Serial port display** ===
	108	+
	109	+
	110	+[[image:image-20220602144747-1.png]]
	111	+
	112	+
	113	+[[image:image-20220602144747-2.png]]
	114	+
64	64	(((
65		-
	116	+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
	120	+
	121	+
69	69	== **2.3 AT command** ==
70	70
71	71