EnOcean GmbH TCM515B Manual Do Utilizador
USER MANUAL
TCM 515B – 2.4 GHZ BLUETOOTH LOW ENERGY (BLE) Transceiver
© 2017 EnOcean | www.enocean.com
F-710-017, V1.0
TCM 515B User Manual | v0.5 | October 2017 | Page 10/37
2.4
Radio transmission sequence
TCM 515B transmits telegrams in its standard configuration by using so-called Advertising
Events.
An advertising event is defined as the transmission of the same radio telegram on all se-
lected radio channels (by default this would be on BLE Channel 37, 38 and 39) one after
another with minimum delay in between.
For reliability reasons, TCM 515B will send three redundant advertising events for each
transmission. The resulting transmission sequence is shown in Figure 3 below.
Figure 3 – Default radio transmission sequence
2.5
Radio reception sequence
TCM 515B receives radio telegrams in its standard configuration by monitoring the Adver-
tising Channels (Channel 37, 38 and 39). Alternative channels can be selected via the radio
API or the ESP3 interface.
TCM 515B will continuously scan these channels one after the other for valid data tele-
grams. The time spent on each channel is configurable.
2.6
User-defined radio channels
In certain situations it might be desirable to transmit and receive radio telegrams on chan-
nels other than the three advertising channels.
TCM 515B therefore allows to select the radio channels to be used for the transmission and
reception. The selection of the radio channels is done by the application SW using the radio
API or the external host using the ESP3 interface.