Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 12 of 55 The authors reserve the right to change specifications without notice. 2.1.8 EU863-870 Class B beacon and default downlink channel 355 The beacons SHALL be transmitted using the following settings 356 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 10: EU863-870 beacon settings 357 358 The beacon frame content is: 359 Size (bytes) 2 4 2 7 2 BCNPayload RFU Time CRC GwSpecific CRC The beacon default broadcast frequency is 869.525MHz. 360 The class B default downlink pingSlot frequency is 869.525MHz 361 362 2.1.9 EU863-870 Default Settings 363 The following parameters are recommended values for the EU863-870MHz band. 364 RECEIVE_DELAY1 1 s 365 RECEIVE_DELAY2 2 s (must be RECEIVE_DELAY1 + 1s) 366 JOIN_ACCEPT_DELAY1 5 s 367 JOIN_ACCEPT_DELAY2 6 s 368 MAX_FCNT_GAP 16384 369 ADR_ACK_LIMIT 64 370 ADR_ACK_DELAY 32 371 ACK_TIMEOUT 2 +/- 1 s (random delay between 1 and 3 seconds) 372 If the actual parameter values implemented in the end-device are different from those default 373 values (for example the end-device uses a longer RECEIVE_DELAY1 and 374 RECEIVE_DELAY2 latency), those parameters must be communicated to the network 375 server using an out-of-band channel during the end-device commissioning process. The 376 network server may not accept parameters different from those default values. 377 378