Due to FCC 15.231 operational and timing requirements, the
STM 250 magnet contact
must not be operated more than 1414 times per hour
(opened or closed):
•
Total duration of transmissions must not exceed more than two seconds per hour
•
STM250 packet length is 0.9 ms, 3 redundant packets, tolerance of 5% in packet
length, 50% on average packet Ton/Toff ratio
3.5 cCSAus Approval
This device complies with CSA C22.2 No.14 and UL 508. It can be operated without notification
in the area of the United States of America and in Canada
3.6 Field Intensity Meter EPM 100
The EPM100 is a mobile field-intensity meter that helps the engineer to find the best
installation positions for sensor and receiver. It can also be used to check disturbances in links
to already installed equipment.
The EPM 100 can be used to identify 868 MHz trunk
radio!
The EPM100 displays the field intensity of received radio telegrams and interfering radio
signals in the 868MHz range.
The simplest procedure for determining
the best installation positions for the
radio sensor/receiver:
•
Person 1 operates the radio
sensor and generates pushbutton
radio telegrams.
•
Person 2 checks the received field
intensity on the meter display to
find the optimal installation
position.
Figure 12: EPM 100 helps to qualify installation positions
©EnOcean GmbH, A. Anders
Page 17 of 18
RCM 255 User Manual V1.12
