USER MANUAL
PTM 535 / PTM 535U / PTM 535J
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ENOCEAN TRANSMITTER MODULE
© 2019 EnOcean | www.enocean.com
F-710-017, V1.0
PTM 535 / 535J User Manual | v1.5 | September 2020 | Page 19/36
4.4.2
External power supply (4 pin configuration interface)
This approach allows you to use a 4 needle test adapter instead of a 6 needle adapter.
Existing 4 needle adapters built for PTM 335 can be reused.
It requires to supply PTM 535 by an external power supply (2.0 - 3.3 V) connected to PTM
535 MP1 and to Segger VTref (IO voltage reference). The external power supply ground has
to be connected to PTM 535 MP2 (GND) and Segger GND.
The required connections are shown in Figure 11 below.
Figure 11
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4-Pin configuration interface (external power supply)