USER MANUAL PREVIEW
PTM 535BZ
–
BLUETOOTH AND ZIGBEE GREEN POWER PUSHBUTTON TRANSMITTER
© 2021 EnOcean | www.enocean.com
F-710-017, V1.0
PTM 535BZ User Manual | v1.0 | May 2021 | Page 11/112
2.4.2
External inputs
PTM 535BZ provides two electrical inputs called INPUT1 and INPUT2 and will report the status
of these input pins as part of each data telegram. These signals can for instance be used for
external contacts or switches.
INPUT1 and INPUT2 are active low, meaning that they will be considered to be active (con-
nected) if they are connected to the GND signal of the PTM 535BZ product interface and
inactive (not connected) if they are left open.
INPUT1 and INPUT2 must either be connected to the GND signal of the PTM 553BZ
product interface or be left open. Do not connect these signals to a supply voltage!
2.4.3
LRN button
PTM 535BZ provides an LRN button which can be used to trigger the transmission of a com-
missioning (LRN) telegram and to execute the channel selection process in Zigbee Green
Power.
2.4.4
Radio subsystem
PTM 535BZ integrates a radio transceiver including a 2.4 GHz antenna for the transmission
of Bluetooth Low Energy (BLE) or Zigbee Green Power (ZGP) radio telegrams. The BLE radio
functionality is described in
Chapter 3
; the ZGP radio functionality is described in
Chapter 4
By default, PTM 535BZ will transmit BLE telegrams. Transmission of ZGP telegrams can be
selected using the NFC interface as described in
Chapter 5
2.4.5
NFC interface
PTM 535BZ provides an NFC interface with integrated NFC antenna which can be used to
configure PTM 535BZ parameters. The NFC interface uses the ISO15693 standard and is
described in
Chapter 5
PTM 535BZ uses the ISO15693 (long range) variant of the NFC standard to
achieve the best possible NFC communication distance based on the very limited
available NFC antenna space.
Other EnOcean NFC products (such as PTM 215B, STM 550B or EMDCB) use the
ISO14443 (high speed) variant of the NFC standard. NFC-enabled smartphones
typically support both NFC standard variants.