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User Manual May 2019 | Page 6/28
USER MANUAL
Energy Harvesting Magnet Contact Transmitter Module
STM 320 / STM 329 / STM 320U
(Stepcode DE and later)
Features Overview
Power supply
solar cell
Antenna
helix antenna
Frequency / Learn button
STM 320
:
868.3 MHz, side button
STM 329: 868.3 MHz, back button
STM 320U: 902.875 MHz, side button
Radiated output power
STM 320: typ. 6.4 dBm (EIRP)
STM 329: typ. 5 dBm (EIRP)
STM 320U: +99 dBµV/m ± 2 dB
Data rate / Modulation type
125kBit/s / ASK (868.3 MHz) / FSK (902.875 MHz)
EnOcean Equipment Profile (EEP)
D5-00-01
SIGNAL 0x0E (Entering Transport Mode)
Start-up time with empty energy storage
typ. <2.5 min @ 400 lux, 25°C
Operation time in darkness @25°C
1
min. 10 days, if energy storage fully charged
Reed contact
1x internal, Meder MK23-90-BV14496 or MK01-I
Teach-in button
1x internal
Transmission indicator
1x LED
Module dimensions
43 x 16 x 6 mm
Operating temperature
1
-20 up to +60 °C
Encryption algorithms
VAES 128 / CMAC
1
At 25°C with default configuration (average transmission cycle 1.500 s, 20 – 30 min).
Energy storage performance degrades over life time, especially if energy storage is long time
exposed to very high temperatures. High temperatures will accelerate aging. Very low temperature
will temporary reduce capacity of energy store and this leads to considerable shorter dark time operation.
2.2
Technical data
