USER MANUAL
PTM 216B – BLUETOOTH
®
PUSHBUTTON TRANSMITTER MODULE
© 2022 EnOcean | www.enocean.com
F-710-017, V1.0
PTM 216B User Manual | v1.0 | February 2022 | Page 25/86
NFC-based commissioning
All required PTM 216B parameters can be read via a suitable NFC reader and writer sup-
porting the ISO/IEC 14443 Part 2 and 3 standards. The actual NFC implementation in PTM
216B uses a Mifare Ultralight tag.
Commissioning via NFC should follow these steps:
1.
Unlock PTM 216B using the default NFC PIN code
0x0000E215
2.
Read the PTM 216B Source Address, Security Key and Sequence Counter and con-
figure the receiver accordingly
3.
Important
: The pre-programmed random security key used by PTM 216B can be
obtained both from the product DMC code as described in chapter 5.2, from received
commissioning telegrams as described in chapter 5.3 and via the NFC interface.
For security-critical applications where unauthorized users could have physical ac-
cess to the switch it is therefore strongly recommended to change the security key
to a new security key as part of the NFC-based commissioning process. To do so,
follow the procedure outlined in chapter 6.7.5.
For additional security, NFC read-out of the new security key can be disabled by set-
ting the
PRIVATE SECURITY KEY
flag in the
Configuration
register before setting the
new security key.
This ensures that even persons knowing the correct PIN code to configure this spe-
cific switch cannot read out the programmed new security key. Please verify that
you have properly documented the new security key as there is no possibility to re-
trieve this after it has been written.
4.
Important
: It is strongly recommended to disable radio-based commissioning after
programming a new security key. This ensures that the new security key cannot be
read out by triggering a commissioning telegram as described in chapter 5.3.
To disable radio-based commissioning, set the
DISABLE LRN TELEGRAM
flag in the
Con-
figuration
register to
0b1
, see chapter 6.7.3.
5.
Important
: You should always change the NFC PIN code from its default setting to
a new NFC PIN code and lock the NFC configuration interface. This step is mandato-
ry to avoid access to the PTM 216B configuration using the default PIN code.
Should you lose the new NFC PIN code then PTM 216B can be reset to factory mode
(with the default NFC PIN code) by means of a factory reset as described in chapter
5.4. For security reasons, this factory reset will always reset the security key to its
pre-programmed value.