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...	...	@@ -1134,7 +1134,6 @@
1134	1134	* Example 1: Downlink Payload: 05010101 ~/~/ Set AT+CFM=1,1,1
1135	1135	* Example 2: Downlink Payload: 05000700 ~/~/ Set AT+CFM=0,7,0
1136	1136
1137		-(% class="wikigeneratedid" %)
1138	1138	== 7.25 Controls NBTrans in unconfirmed uplink mode（LWS007 NBTrans:Set retransmission packets) ==
1139	1139
1140	1140	{{info}}
...	...	@@ -1164,7 +1164,6 @@
1164	1164	* Example 1: Downlink Payload: 330100 ~/~/ Set AT+SETMAXNBTRANS=1,0
1165	1165	* Example 2: Downlink Payload: 330201 ~/~/ Set AT+SETMAXNBTRANS=2,1
1166	1166
1167		-(% class="wikigeneratedid" %)
1168	1168	== 7.26 Device offline rejoining ==
1169	1169
1170	1170	{{info}}
...	...	@@ -1210,8 +1210,27 @@
1210	1210
1211	1211	If the downlink payload=320105A00B40, it means set end node to use confirm mode, while type code is 33.
1212	1212
1213		-* Example 1: Downlink Payload: 320105A00B40 ~/~/ Set AT+DDETECT=1,1440,2880
	1211	+* Example 1: Downlink Payload: 320105A00B40 ~/~/ Set AT+DDETECT=1,1440,2880
1214	1214
	1213	+(% class="wikigeneratedid" %)
	1214	+== 7.27 Request the server to send an ACK ==
	1215	+
	1216	+{{info}}
	1217	+**AT Command: AT+PNACKMD**
	1218	+{{/info}}
	1219	+
	1220	+(% border="1" style="background-color:#ffffcc; color:green; width:536.222px" %)
	1221	+|=(% colspan="3" style="width: 533px;" %)**AT+PNACKMD**
	1222	+|(% style="width:160px" %)**Command Example**|(% style="width:263px" %)**Function**|(% style="width:109px" %)**Response**
	1223	+|(% style="width:160px" %)**AT+PNACKMD=1**|(% style="width:263px" %)If the node uploads the ACK as confirm, it will request the server to send an ACK. If the server ack is not received, the node will upload the packets that have not received the ACK the next time it receives the ACK|(% style="width:109px" %)1(((
	1224	+OK
	1225	+)))
	1226	+|(% style="width:160px" %)**AT+PNACKMD=0**|(% style="width:263px" %)off request the server to send an ACK|(% style="width:109px" %)(((
	1227	+1
	1228	+
	1229	+OK
	1230	+)))
	1231	+
1215	1215	= 8. AT Commands Combination =
1216	1216
1217	1217	== 8.1 Set a fix RX2DR for downlink window ==