User's Manual

USER MANUAL PREVIEW

PTM 535BZ – BLUETOOTH AND ZIGBEE GREEN POWER PUSHBUTTON TRANSMITTER

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.