STM320U

DATA SHEET Energy Harvesting Magnet Contact Transmitter Module STM 320 / STM 329 / STM 320U (Stepcode DE and later) The radio transmitter module STM 32x enables the implementation of a wireless magnet contact sensor. Powered by a solar cell, it works absolutely maintenance-free. An integrated energy store allows operation for several days even in total darkness. Key applications are window and door sensors. Functional Principle The STM 32x supervises an integrated reed contact and reports every status change immediately (openclosed). In addition a sign of life signal is transmitted every 20-30 minutes. In enhanced secure mode the communication is protected by encryption. STM 32x is available in following variants – STM 320 / STM 329 using 868 MHz and STM 320U using 902 MHz. Exemplary image Type STM320 STM329 STM320U Ordering Code S3001-D320 S3001-D329 S3051-D320 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: max. 6.4 dBm (EIRP) STM 329: max. 5 dBm (EIRP) STM 320U: +99 dBµV/m ± 2 dB Data rate / Modulation type 125 kBit/s / ASK (868.3 MHz) / FSK (902.875 MHz) EnOcean Equipment Profile D5-00-01 SIGNAL 0x0E (Entering Transport Mode) Start-up time with empty energy storage 1 Initial operation time in darkness @25°C Reed contact 1x internal Transmission indicator 1x LED Module dimensions Operating temperature 1 min. 10 days, if energy storage fully charged 1x internal, Meder MK23-90-BV14496 or MK01-I Teach-in button Encryption Algorithms Radio approvals typ.