Issue link: https://read.uberflip.com/i/1479525
LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 62 of 101 The authors reserve the right to change specifications without notice. If the ChMask field value is one of the values indicating RFU, the end-device SHALL reject the 1225 command and unset the Channel mask ACK bit in its response. 1226 2.9.5.2 Channel Plan for 26 MHz Antenna 1227 The ChMaskCntl field of the LinkADRReq command has the following meaning: 1228 1229 ChMaskCntl ChMask Applies To 0 Channels 0 to 15 1 Channels 16 to 31 2 Channels 32 to 47 3 All channels enabled 4 All channels disabled 31 5 RFU 6 RFU 7 RFU Table 43: CH470 ChMaskCntl value table for 26M antenna 1230 If the ChMask field value is one of the values indicating RFU, the end-device SHALL reject the 1231 command and unset the Channel mask ACK bit in its response. 1232 2.9.6 CN470-510 Maximum Payload Size 1233 The maximum MACPayload size length (M) is given by the following table. It is derived from 1234 the maximum allowed transmission time at the PHY layer, taking into account a possible 1235 repeater encapsulation. The maximum application payload length in the absence of the 1236 OPTIONAL FOpts MAC control field (N) is also given for information only. The value of N 1237 might be smaller if the FOpts field is not empty. 1238 Data Rate M N 0 30 N/A N/A 1 31 23 2 94 86 3 192 184 4 230 222 5 230 222 6 230 222 7 230 222 8:15 Not defined Table 44: CN470-510 maximum payload size (repeater compatible) 1239 If the end-device will never operate with a repeater, the maximum application payload length 1240 in the absence of the OPTIONAL FOpts control field SHALL be: 1241 Data Rate M N 0 30 N/A N/A 1 31 23 2 94 86 3 192 184 4 250 242 5 250 242 6 250 242 7 250 242 8:15 Not defined Table 45: CN470-510 maximum payload size (not repeater compatible) 1242