USER MANUAL
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver
© 2017 EnOcean | www.enocean.com
F-710-017, V1.0
TCM 515Z User Manual | v1.6 | September 2017 | Page 9/46
2.3
Radio Functionality
2.3.1
Supported Radio Channels
TCM 515Z support all radio channels of the IEEE 802.15.4 standard in the 2.4 GHz band.
The radio channel used by TCM 515Z can be set by an external host using the ESP3
SET_CHANNEL command as described in Appendix C.2.3.
The channel notation used by TCM 515Z follows IEEE 802.15.4 standard, i.e. channel 11 is
the first channel (lowest frequency) and channel 26 is the last channel (highest frequency).
Table 2 below shows the correspondence between channel ID and channel frequency.
Table 2 - Supported radio channels
2.3.2
Duty cycle limit
In order to ensure regulatory compliance in some markets, the transmission duty cycle of
TCM 515Z may not exceed 35%. An internal SW mechanism therefore monitors the duty
cycle and will temporarily reject requests for additional transmissions if this duty cycle is
exceeded (note: this is only possible if TURBO mode is used and the host continuously re-
quests transmission).
It is the responsibility of the end user to design the host system such that either such tem-
porary transmission suspension does not affect the intended application functionality or to
ensure that the transmission duty cycle requested by the host will not exceed 35%.
