USER MANUAL
STM 431J – Scavenger Transmitter Module
© 2017 EnOcean | www.enocean.com
STM 431J User Manual | v2.0 | Nov 2017 | Page 6/ 34
1.3
Technical data
Antenna
Helix antenna (STM 43XJ)
Frequency
928.35MHz
Data rate/Modulation type
125 kbps/FSK
Radiated Output Power
Typ. 0dBm
Power Supply @ VDD
Pre-installed solar cell
Illumination 50-100000 lux
2.1 V–5.0 V, 2.6 V needed for start-up
Initial operation time in
darkness @ 25°C
typ. 4 days, min. 60 hours
if energy storage fully charged, wake-up every 100 s,
transmission of telegram every 1000 s on average
1
Operation start up time with empty
energy store
typ. 2.5 min @ 400 lux / 25 °C
incandescent or fluorescent light
Input Channels
Internal: temperature sensor, LRN button
External: occupancy button, set point dial, HSM 100
Temperature sensor
Measurement range 0-40 °C, resolution 0.16 K
Accuracy typ. ±0.5 K between 17 °C and 27 °C
typ. ±1 K between 0 °C and 40 °C
EnOcean Equipment Profiles
configurable EEPs: A5-02-05 (default), A5-10-05, A5-10-03
and with HSM 100: A5-04-01, A5-10-10, A5-10-12
Generic Profiles Profiles
Temp : 0 – 40 Celsius, with 8, 10, 12 ,16 bit resolution
More options available with source code change
Enhanced Security features
CMAC (3 – 4 bytes) / RLC (2 – 3 bytes) / VAES
Connector
20 pins, grid 1.27 mm,
□
0.4 mm
Radio Regulations
ARIB STD-T108
Security Level Format
24-bit RLC, No RLC tx, 4-byte CMAC, VAES encryption
1.4
Physical dimensions
1
Full performance of the PAS614L energy storage is achieved after several days of operation (up to two weeks) at
good illumination level. Performance degrades over life time, especially if energy storage is exposed to higher
temperatures. Each 10 K drop in temperature doubles the expected life span.
PCB dimensions
43±0.2 x 16±0.3 x 1±0.1 mm
Module height
8 mm
Weight
4.5 g