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 7/43
2 Functional Information
2.1 Device Overview
The pushbutton transmitter module PTM 215ZE from EnOcean enables the implementation
of wireless switches and remote controls without batteries. Power is provided by a built-in
electro-dynamic power generator.
The outer appearance of PTM 215ZE is shown in Figure 2 below.
Figure 2 – Electro-dynamic powered pushbutton transmitter module PTM 215ZE
2.2 Functional Principle
PTM 215ZE devices contain an electro-dynamic energy transducer which is actuated by an
energy bow (1). This bow is pushed by an appropriate push button, switch rocker or a similar
construction mounted onto the device. An internal spring will release the energy bow as soon
as it is not pushed down anymore.
When the energy bow is pushed down, electrical energy is created and a ZigBee Green Power
radio telegram is transmitted which identifies the status (pressed or not pressed) of the four
button contacts (2). Releasing the energy bow similarly generates energy which is used to
transmit a different radio telegram.
It is therefore possible to distinguish between radio telegrams sent when the energy bar was
pushed and radio telegrams sent when the energy bar was released.
By identifying these different telegrams types and measuring the time between pushing and
releasing of the energy bar, it is possible to distinguish between “Long” and “Short” button
contact presses. This enables simple implementation of applications such as dimming control
or blinds control including slat action.
(2) Button contacts
for switch rocker
identification
(1) Energy bow
on both device sides
Rotation axis for
pushbuttons or
switch rocker