User's Manual

USER MANUAL
PTM 215ZE – 2.4 GHz IEEE 802.15.4 Pushbutton Transmitter Module
© 2022 EnOcean | www.enocean.com F-710-017, V1.0 PTM 215ZE User Manual | v1.0 | March 2022 | Page 12/43
Figure 5 below summarizes the IEEE 802.15.4 frame structure.
Figure 5 – IEEE 802.15.4 Frame Structure
The content of these fields is described in more detail below.
3.2.1 PHY Header
The IEEE 802.15.4 PHY header consists of the following fields:
 Preamble
 Start of Frame
 Length of Frame fields
The content of the Preamble and Start of Frame fields is fixed for all telegram types supported
by PTM 215ZE as follows:
 Preamble = 0x00000000
 Start of Frame = 0xA7
The content of the Length of Frame field differs depending on the telegram type as follows:
 Commissioning telegram
Length= 42 bytes (0x2A)
 Data telegram
Length = 24 bytes (0x18)