User's Manual

USER MANUAL V0.9
EnOcean GmbH
Kolpingring 18a
82041 Oberhaching
Germany
Phone [phone]
Fax [phone]
[e-mail]
www.enocean.com
Subject to modifications
PTM 210 / 210C step EA User Manual V0.9
October 18, 2011 4:33 PM
Page 12/17
PTM 210 / 210C STEP EA
2.3 Transmission timing
The transmission timing of the radio device PTM 210C has been developed to avoid possible
collisions with data packages of other EnOcean transmitters as well as disturbances from
the environment.
With each transmission cycle, at least three identical subtelegrams are transmitted. The
transmission of a subtelegram lasts approximately 0.7 ms. To optimize data security, each
telegram is repeated twice within about 40 ms, whereas the delay between the second and
the third transmission burst is effected at random.
If some residual energy is available after transmission of three subtelegrams, up to 2 fur-
ther subtelegrams are sent (PTM 210C only).