Issue link: https://read.uberflip.com/i/1428359
LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 52 of 71 The authors reserve the right to change specifications without notice. 1250 2.8.8 AS923 Class B beacon and default downlink channel 1251 The beacons SHALL be transmitted using the following settings 1252 DR 3 Corresponds to SF9 spreading factor with 125 kHz BW CR 1 Coding rate = 4/5 Signal polarity Non-inverted As opposed to normal downlink traffic which uses inverted signal polarity Table 56 : AS923 beacon settings 1253 The beacon frame content is: 1254 Size (bytes) 2 4 2 7 2 BCNPayload RFU Time CRC GwSpecific CRC The beacon default broadcast frequency is 923.4MHz. 1255 The class B default downlink pingSlot frequency is 923.4MHz 1256 1257 2.8.9 AS923 Default Settings 1258 The following parameters are recommended values for the AS923MHz band. 1259 RECEIVE_DELAY1 1 s 1260 RECEIVE_DELAY2 2 s (MUST be RECEIVE_DELAY1 + 1s) 1261 JOIN_ACCEPT_DELAY1 5 s 1262 JOIN_ACCEPT_DELAY2 6 s 1263 MAX_FCNT_GAP 16384 1264 ADR_ACK_LIMIT 64 1265 ADR_ACK_DELAY 32 1266 ACK_TIMEOUT 2 +/- 1 s (random delay between 1 and 3 seconds) 1267 If the actual parameter values implemented in the end-device are different from those default 1268 values (for example the end-device uses a longer RECEIVE_DELAY1 and 1269 RECEIVE_DELAY2 latency), those parameters MUST be communicated to the network 1270 server using an out-of-band channel during the end-device commissioning process. The 1271 network server may not accept parameters different from those default values. 1272