User's Manual

Teach-in pushbutton: .............................................on-PCB (operating at open case only)
Indicator for teach-in telegram transmission: .................... on-PCB Light Emitting Diode
(beside teach in pushbutton)
A change of the REED CONTACT status or pushing the teach-in button will wake the
transmitter unit to send a radio telegram immediately (reed contact position, teach-in
pushbutton status, unique 32-bit sensor ID, checksum). In addition a PRESENCE SIGNAL is
sent around every 12 minutes to announce the contact status even in case of no input signal
changes (sign of life).
Between the wake-up phases, the device is in sleep mode for minimum power consumption
(on average some nA only!).
1.4 Dimensions of Reed Contact Unit
Dimensions of Reed Contact Unit: ............................ base 110 x 19 mm x height 15 mm
Weight of Reed Contact Unit: ............................................................................... 18g
Material of housing: ........................................................................................ PC/ABS
Color of housings: ...................................................... signal white (similar to RAL 9003)
Figure 3: Top view
©EnOcean GmbH, A. Anders Page 6 of 24 STM 250 User Manual V1.3