USER MANUAL
PTM 215B – BLUETOOTH
®
PUSHBUTTON TRANSMITTER MODULE
© 2019 EnOcean | www.enocean.com
F-710-017, V1.0
PTM 215B User Manual | v1.9 | June 2019 | Page 78/85
C.1.3.3
Obtaining the security key via a commissioning telegram
PTM 215B modules can send dedicated commissioning telegrams that identify their security
key. Transmission of such commissioning telegrams can be triggered by means of a specific
button sequence as described in chapter 5.3.
Note that this feature can be disabled via the NFC commissioning interface by setting the
DISABLE LRN TELEGRAM
flag in the
Configuration
register to
0b1
(see chapter 6.7.3).
The resulting commissioning telegram has the following payload:
1D FF DA 03 56 04 00 00
3D DA 31 AD 44 76 7A E3 CE 56 DC E2 B3 CE 2A BB
B8 19 00 00
15 E2
Please see Figure 16 in chapter 5.3.2 for a description of the commission telegram struc-
ture.
The location of the security key is for reference highlighted
red
above. This means that the
security key of this device is:
3DDA31AD44767AE3CE56DCE2B3CE2ABB
C.1.4
Internal parameters
The RFC3610 implementation in PTM 215B derives a set of internal parameters for further
processing from the provided input parameters.
Again, there are two types of internal parameters:
Constant internal parameters
These parameters are based on the high level algorithm and telegram properties
and are the same for any PTM 215B telegram
Variable input parameters
These parameters are based on the telegram-specific parameters and therefore de-
pend on the specifics of the transmitted telegram
