EnOcean RCM Series User manual

RF Receiver Modules
RCM 142
User Manual V1.1
April 2006

Revision History
The following major modifications and improvements have been made to the initial version of
the document (RCM 142 Specification V1.2, Draft):
Version Subject (major changes since last version)
V1.0 Declaration of CE conformity added (chapter 5)
V1.1 Current consumption and supply voltage range corrected
Published by EnOcean GmbH,
Kolpingring 18a, 82041 Oberhaching
© EnOcean GmbH
All Rights Reserved
Important!
This information describes the type of component and shall not be considered as assured characteristics. No
responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change
without notice. For the latest product specifications, refer to the EnOcean website: http://www.enocean.com.
As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for
applications, processes and circuits implemented within components or assemblies.
EnOcean does not assume responsibility for use of devices described and limits its liability to the replacement of
devices determined to be defective due to workmanship. Devices or systems containing RF components must meet the
essential requirements of the local legal authorities.
EnOcean GmbH does not recommend the use of its products in life support applications and will not knowingly sell its
products for use in such applications unless it receives an adequate “products liability indemnification insurance
agreement”.
Components of the modules are considered and should be disposed of as hazardous waste. Local government
regulations are to be observed.
Packing: Please use the recycling operators known to you. By agreement we will take packing material back if it is
sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or that we are not
obliged to accept, we shall have to invoice you for any costs incurred.
©EnOcean GmbH Page 2 of 20 RCM 142 User Manual V1.1

Table of Contents
1. GENERAL DESCRIPTION________________________________________________________________ 4
1.1 EnOcean RCM 1x0 Family - Basic receiver functionalities ________________________ 4
1.2 Typical Applications _________________________________________________________________ 5
1.3 Features Overview __________________________________________________________________ 5
1.4 Physical Dimensions ________________________________________________________________ 6
1.5 Environmental Conditions __________________________________________________________ 6
1.6 Ordering Information _______________________________________________________________ 6
2. FUNCTIONAL DESCRIPTION ___________________________________________________________ 7
2.1 Block Diagram _______________________________________________________________________ 7
2.2 Pin Description ______________________________________________________________________ 7
2.3 RCM 142 Operating Modes__________________________________________________________ 9
2.4 Learning Modes ____________________________________________________________________ 10
2.5 Learning of Radio Transmitters ___________________________________________________ 11
2.6 Deleting Radio Transmitters_______________________________________________________ 13
2.7 Received Signal Strength Indicator (RSSI) _______________________________________ 13
2.8 Demodulated Direct Signal Output (RxD) ________________________________________ 13
3. APPLICATIONS INFORMATION _______________________________________________________ 14
3.1 Module Mounting ___________________________________________________________________ 14
3.2 Antenna Mounting__________________________________________________________________ 14
3.3 Transmission Range _______________________________________________________________ 16
3.4 Power Supply Requirements ______________________________________________________ 17
3.5 LMI Output Connection ____________________________________________________________ 17
3.6 CE Approval Requirements ________________________________________________________ 17
3.7 FCC/IC Approval Requirements ___________________________________________________ 18
4. DEVELOPMENT TOOLS_________________________________________________________________ 19
4.1 Evaluation Kit EVA 100 ____________________________________________________________ 19
4.2 Field Intensity Meter EPM 100 ____________________________________________________ 19
5. DECLARATION OF CE CONFORMITY __________________________________________________ 20
©EnOcean GmbH Page 3 of 20 RCM 142 User Manual V1.1

1. GENERAL DESCRIPTION
The multifunctional receiver module RCM 142 is part of the EnOcean RCM 1x0 receiver family
that is used to receive and to process telegrams generated and transmitted by EnOcean radio
transmitters. All RCM modules can be easily integrated into control and switching units for the
implementation of different application-specific system solutions.
1.1 EnOcean RCM 1x0 Family - Basic receiver functionalities
RCM 110 receiver functionalities:
• Logic output control functions “switching” (on/off, 1 to 4 channels) and “dimming”
(PWM 50 kHz, switch-off value memory)
• Scene selection control (“all on/off”, 6 scene memories)
• Learning procedure for EnOcean transmitters, easy to operate
RCM 120 receiver functionalities:
• Serial data link from EnOcean RF transmitters (9600 bps, 1 start bit, 1 stop bit). This
interface facilitates any desired actor functionality by the user.
• Logic output control functions “pushbutton” (1 channel) and “tubular motor control”
(up/down with slat action, 1 or 2 channel)
• Learning procedure for EnOcean transmitters, easy to operate (optional within serial
data link)
RCM 142 receiver functionalities:
• Logic output control function “pushbutton” (2 channel)
• Learning procedure for EnOcean transmitters, easy to operate (optional within serial
data link)
Figure 1: Receiver module RCM 142
©EnOcean GmbH Page 4 of 20 RCM 142 User Manual V1.1

1.2 Typical Applications
• Building installation
• Industrial automation
• Consumer electronics
The RCM modules are part of a powerful RF system solution from EnOcean for operation and
control applications. Because the RF transmitters are self-powered (no batteries),
maintenance-free RF systems can be implemented.
The RCM modules operate together with the following further EnOcean components: PTM
(batteryless radio switches), STM (batteryless radio sensors) and TCM (bi-directional radio
modules)
1.3 Features Overview
Power Supply: ........................................................................................ 5 V DC ± 5 %
Current Input: ............................................................ 29 mA max. (without output load)
Receive Frequency: ................................................ 868.3 MHz (stabilized by crystal PLL)
Sensitivity / Channel Bandwidth: ..................................................... -95 dBm / 280 kHz
Control Inputs: ................................... 6 inputs for set up of operating and learning modes
Functional Outputs: ......... 4 outputs, their function depends on the selected operation mode
Learning Mode Output: ................................................ indicates learning of transmitters
Number of RF transmitters learnable: ............................. up to 30 EnOcean transmitters
RSSI Output:.........................................................indicates received peak signal strength
Direct Signal Output: .................................................. physical layer 1 output (120 kbps)
©EnOcean GmbH Page 5 of 20 RCM 142 User Manual V1.1

1.4 Physical Dimensions
Antenna:...........................................................9 cm whip or external antenna mountable
Dimensions of PCB: ........................................18.0 x 42.0 x 5.5 mm (without wiring pins)
Connector: ........................................16 pins, grid 2.0 mm (4.0 mm in length,  0.5 mm)
42
18
4
20.5
1.225
2.45
5.5
30
Pin 1 Pin 16
Antenna
Pin 1 Pin 16
42
18
4
20.5
1.225
2.45
5.5
30
Pin 1 Pin 16
Antenna
Pin 1 Pin 16
Figure 2: RCM 110 and RCM 120 package outlines
1.5 Environmental Conditions
Operating Temperature:..................................................................... -25 up to +65 °C
Storage Temperature:........................... -40 up to +85 °C, +85 up to +100 °C for 1h max.
Humidity:............................................................................................0 % to 95 % r.h.
1.6 Ordering Information
Type EnOcean Ordering Code Remarks
RCM 142 S3002-B142 2 channel Pushbutton Control
©EnOcean GmbH Page 6 of 20 RCM 142 User Manual V1.1

2. FUNCTIONAL DESCRIPTION
2.1 Block Diagram
RSSI
RXD
OUT_0
OUT_1
OUT_2
OUT_3
LMI
LRN SSLM CLR
Mode
Ant
µC
CODE_0
CODE_1
CODE_2
VCC GND
14
13
8
9
10
11
12
7651, 1615
2
3
4
RSSI
RXD
OUT_0
OUT_1
OUT_2
OUT_3
LMI
LRN SSLM CLR
Mode
Ant
µC
CODE_0
CODE_1
CODE_2
VCC GND
14
13
8
9
10
11
12
7651, 1615
2
3
4
Figure 3: Block diagram of RCM 142
2.2 Pin Description
Pin No. Symbol Function Operational
characteristics
1 GND_0 Ground connection
2
3
4
CODE_0
CODE_1
CODE_2
Encoding input for operation mode selection
(configuration of the receiver firmware). The
operation mode is defined with the pin status at
power-up. A change of the operation mode is
possible with cleared ID memory only (see CLR).
Resistor network input.
Code pins should be left
open or connected to
GND (for encoding
schematics, see 2.3
RCM 142 Operating
Modes).
©EnOcean GmbH Page 7 of 20 RCM 142 User Manual V1.1

5 LRN Control input to enter transmitter learning mode:
Learning of switch rockers and sensor modules by
the receiver through triggering the transmitter
telegram at least once (see 2.5 Learning of Radio
Transmitters). During transmitter learning mode,
the sensitivity of the receiver is reduced to in-room
operation.
Resistor network input:
Connect the open LRN
pin to GND for longer
than 0.5 seconds.
6 SSLM Reserved Reserved resistor
network input: Please
don’t connect
7 CLR Control input to clear the receiver ID and scene
memory (all learned switch rockers, sensors and
scene switches)
Resistor network input:
Connect the open CLR
pin to GND for longer
than 2 seconds.
8
9
10
11
OUT_0
OUT_1
OUT_2
OUT_3
Functional control outputs (see 2.3 RCM 142
Operating Modes). Also indicate current learning
mode status (see 2.5 Learning of Radio
Transmitters).
Open collector outputs.
35 V max., 100 mA
max., 100 mW max.
each.
12 LMI Learning Mode indication output: LMI is Active High
in the learning mode phase. For optical indication,
LEDs can be connected with one lead directly to the
functional control outputs. The other lead of the
LEDs can be connected to the LMI pin in common,
so Learning Mode LEDs are switched off in
operation mode. If desired, the LMI pin can also be
used to switch off loads within learning mode.
5 V TTL output, 20 mA
max.
13 RXD Digital output of all received RF signals (physical
layer 1)
5 V TTL output,
source impedance
11 KΩ
14 RSSI Indication output of received signal strength (peak
detection)
Source impedance app.
20 KΩ
15 VCC Power supply 5 V DC ± 5%, 29 mA
max. (without LMI
output current)
16 GND_1 Ground connection
CODE_2
CODE_1
CODE_0
10K
100n
A
DC
(Mode)
8K2
10K
22K
VCC
CODE_2
CODE_1
CODE_0
10K
100n
A
DC
(internal
8K2
10K
22K
VCC
CLR
SSLM
LRN
10K
100n
A
DC
(Mode)
8K2
10K
22K
VCC
CLR
SSLM
LRN
10K
100n
A
DC
(internal)
8K2
10K
22K
VCC
Figure 4: Equivalent schematics of Control Inputs (pins 2 to 7)
©EnOcean GmbH Page 8 of 20 RCM 142 User Manual V1.1

Figure 5: Equivalent schematics of Functional Outputs (pins 8 to 11)
2.3 RCM 142 Operating Modes
The following operating modes can be configured by the encoding inputs CODE_2..0 of the
RCM 142 module:
Mode Function Output signal description No. of
channels
CODE
_2
CODE
_1
CODE
_0
0 Push Button One-to-one copy of pushbutton
actions “O-button pressed/released”
and “I-button pressed /released”
• Channel 1 (OUT_0-1):
O-button pressed (OUT_0 =
active) / released (OUT_0 =
inactive again),
I-button pressed (OUT_1 =
active) / released (OUT_1 =
inactive again)
• Channel 2 (OUT_2-3):
O-button pressed (OUT_2 =
active) / released (OUT_2 =
inactive again),
I-button pressed (OUT_3 =
active) / released (OUT_3 =
inactive again)
2 channel
(OUT_0-1,
OUT_2-3)
NC NC NC
1 Push Button,
O/I-blocked
Same as Mode 0, but OUT_0 and
OUT_1 are blocked against each other
(OUT_0 and OUT_1 never can be
active at the same time).
The same is given for channel 2
(OUT_2 and OUT_3).
2 channel
(OUT_0-1,
OUT_2-3)
NC NC GND
22K
OUT_x
OC
(external) OUT_x
TTL
(internal)
4K7
22K
OUT_x
OC
(external) OUT_x
TTL
(internal)
4K7
©EnOcean GmbH Page 9 of 20 RCM 142 User Manual V1.1

2 Push Button,
with Auto
Time-Out
Same as Mode 0, but with automatic
limitation of the active output state to
10 seconds duration maximum (see
Appnote chapter 3.6).
In case a “pressed” telegram will be
not followed by a “released” telegram
within this delay time, the output
changes inactive automatically. A
“released” telegram following after
that time will be ignored.
2 channel
(OUT_0-1,
OUT_2-3)
NC GND NC
3 Push Button,
O/I-blocked,
with Auto
Time-Out
Same as Mode 2, but OUT_0 and
OUT_1 are blocked against each other
(OUT_0 and OUT_1 never can be
active at the same time).
The same is given for channel 2
(OUT_2 and OUT_3).
2 channel
(OUT_0-1,
OUT_2-3)
NC GND GND
4 Reserved GND NC NC
5 Reserved GND NC GND
6 Reserved GND GND NC
7 Test Reserved (module test mode) GND GND GND
The operation mode is defined with pin status at power-up; a change of operation mode is
possible with cleared ID memory only.
Notes:
1.) Since RCM 142 operating modes are switching functions, transmitter modules with
switching functionality can be learned only (RPS and HRC radio telegrams from PTM,
CTM or TCM modules).
2.) If more than one switch is learned to one channel (or release telegram has
been lost), the new switch command overwrites the action of the switch
operated before.
3.) If more than one switch is learned to the RCM 142 receiver module, any
release command leads to inactivity of all 4 outputs (OUT_0..3 = inactive,
cross channel)
2.4 Learning Modes
Three different learning modes are implemented within the RCM 142 module:
1.) Learning Mode CLR: ID Memory Reset. All learned transmitter IDs are deleted.
Learning mode LRN is entered subsequently. CLR mode has to be entered also for
©EnOcean GmbH Page 10 of 20 RCM 142 User Manual V1.1

changing the receiver operating mode (changed connections pattern at pins CODE_2..0
is taken over).
2.) Learning Mode LRN: Transmitter Learning Mode entered via LRN pin: The receiver
sensitivity is limited to in-room operation, learning of repeater-powered signals is
disabled. The telegram of the associated radio transmitter has to be triggered one time
at least (pressing the desired switch rocker or triggering a sensor).
3.) Learning Mode RLM: Transmitter Learning Mode entered via Configuration Remote
Control (CTM module in CRC operating mode) or via Central Unit Interface (TCM): The
receiver sensitivity is not limited. Learning of repeater-powered signals is enabled. The
transmitters telegrams have to be triggered 3 times within 2 seconds to avoid
inadvertent learning. RLM can only be entered within a time of approx. 30 minutes after
receiver power up to make a running system safe against sabotage.
Indistinct signal or pin configurations are ignored at all times. Within the learning procedure,
the learning mode cannot be changed.
2.5 Learning of Radio Transmitters
LMI pin is active high during all learning modes.
1.) Setting the receiver to learning mode
- Via CLR Pin: Contact to GND longer than t = 2 sec. Learning mode B (LRN) is
entered after clearing transmitter-ID memory.
- Via LRN Pin: Contact to GND longer than t = 0.5 sec. In multi-channel receiver
modes, the pin has to be contacted several times until the desired channel number is
selected (the number of channels is given by the selected operating mode =
Code_2..0 pin configuration).
- Via Configuration Remote Control: The remote control must be operated within a
distance of max. 0.5 m to the receiver. A specific selection method can be used
(multiple pressing of the control pushbutton) when two receivers are very close
together and have been set into learning mode at the same time.
2.) The receiver will confirm Learning Mode (i.e. via LEDs in parallel to the
output pins)
Operating Mode Learning Mode Confirmation
RCM 142 – all modes
(Pushbutton, 2 channel)
The outputs of the selected channel (OUT_0 and
OUT_1 or OUT_1 and OUT_2) are flashing alternately
outputs are flashing alternately (1 sec. on / 1 sec. off)
3.) If Learning Mode has been entered via LRN pin, ensure that the
associated radio transmitter will be in a distance less than 5 m to the
©EnOcean GmbH Page 11 of 20 RCM 142 User Manual V1.1

receiver (not necessary by entering Learning Mode via the Config Remote
Control)
In learning mode LRN, the sensitivity of the RCM module is limited to in-room
operations and learning of repeater powered signals is disabled (to avoid unintentional
learning).
4.) Trigger the telegram of the associated radio transmitter within 30 sec. at
the latest
- Operate the switch radio transmitter at least once (press I-button or O-button of the
rocker that is to be assigned to the selected receiver channel). If Learning Mode was
entered via Config Remote Control, operate the button 3 times within 2 sec.
- Or activate the sensor radio transmitter at least once (triggering is done by a
movement within the motion sensor area, illumination of a brightness sensor, etc.).
EnOcean sensors in general have a separate pushbutton for easy generation of a
triggering signal.
- A fresh contacting of the LRN pin to GND or a fresh operation of the Config Remote
Control: In multi-channel operation modes, the next remaining channel is selected for
learning until the last channel is selected; otherwise, Operation Mode is entered again
at the next contact (no output is flashing any more and LMI output changes to
inactive).
- After approx. 30 seconds of inactivity (no transmitter has been triggered), the
receiver switches back from Learning Mode to Operating Mode automatically.
5.) The receiver will confirm the correct learning of transmitter ID code
Operating Mode Confirmation of transmitter learned
RCM 142 – all modes
(Pushbutton, 2 channel)
If channel 1 is selected: OUT_0 output (O-button)
remains in active state for 4 sec., after that OUT_1
output (I-button) remains in active state for 4 sec.
If channel 2 is selected: OUT_2 output (O-button)
remains in active state for 4 sec., after that OUT_3
output (I-button) remains in active state for 4 sec.
6.) Learning of further transmitters
After confirmation, the receiver changes again to readiness for learning. Further transmitters
can be learned immediately. The next receiver channel will be entered by connecting the LRN
pin to GND longer than t = 0.5 sec. A maximum of 30 radio transmitters can be learned
(further attempts will be ignored; instead of learning confirmation, operating mode is
entered).
7.) Leave learning mode
LRN mode is leaved by entering the operating mode with LRN pin contacting after the second
receiver channel has been called or automatically after 30 seconds of no activity.
©EnOcean GmbH Page 12 of 20 RCM 142 User Manual V1.1

2.6 Deleting Radio Transmitters
a) Deletion of one specific transmitter: Use the same procedure as learning the
associated transmitter
As transmitter delete confirmation, the corresponding function outputs remain in
inactive state for 4 sec. while LMI keeps active. After that, a wrongly deleted
transmitter can be learned again immediately.
b) Deletion of all learned transmitters: Connect the CLR pin longer than 2 sec. to
GND
All learned transmitters on all channels are deleted at the same time. After this, the
receiver enters Learning Mode B.
2.7 Received Signal Strength Indicator (RSSI)
The RSSI output of the RCM module is useful for transmission range tests. By indicating the
strength of an incoming RF signal, this output allows the assessment of RF link quality and
transmission range. The RSSI pin output voltage is typically 0.9 V with no RF signal, rising to
typically 2.6 V at maximum signal. The external loading should be kept to a minimum since
the RSSI output source impedance is around 20 kOhm. The following shows a typical RSSI
characteristic:
500
1000
1500
2000
2500
3000
-120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0
RF input (dBm)
RSSI output (mV)
Figure 6: RSSI output characteristics
2.8 Demodulated Direct Signal Output (RxD)
TTL output of all received radio signals (120 KHz, physical layer 1). This output is not
recommended for user’s further data processing, because a very complex data
structure has to be processed at high speed. Please note that RCM 12x offers a 9.6 kbps
standardized serial output of all received EnOcean radio telegrams.
©EnOcean GmbH Page 13 of 20 RCM 142 User Manual V1.1

3. APPLICATIONS INFORMATION
3.1 Module Mounting
The modules may be mounted in vertical or horizontal position to the user board of the
application device (load module). In a vertical position, the module pins can be directly
connected to the user board through suitable PCB holes. Optionally suitable female strip
connectors can be used, available e.g. from Conrad Electronic GmbH (Ordering No.
73 92 43). Additional module fixing may be necessary in rough environments.
The following features have to be available on the motherboard:
- Load circuit, i.e. power switches or serial interface driver (connected to RCM functional
output pins OUT_0..3)
- Power supply for the receiver module (GND_0, GND_1, VCC) and for the load circuit
- Configuration of the receiver firmware (connecting of input pins CODE_0, CODE_1 and
CODE_2)
- Programming pushbuttons for channel storing (connecting of input pins LRN and CLR)
- If needed, Learn Mode indication circuitry: LED(s) for providing optical feedback and/or
a load output decoupling logic
- External connectors
3.2 Antenna Mounting
Positioning and choice of receiver and transmitter antennas are the most important factors in
determining system transmission range. The RCM 152 receiver modules are supplied without
antenna as a standard. For mounting the antenna, the following notes should be considered to
optimize the system performance:
a) Mounting a 1/4-wave whip antenna:
A whip antenna enables a very compact receiver unit with good radio reception characteristics.
For good receiver performance, great care must be taken about the space immediately around
the antenna since this has a strong influence on screening and detuning the antenna. The
antenna should be drawn out as far as possible and must never be cut off. Mainly the far end
of the wire should be mounted as far away as possible from all metal parts, PCB strip lines and
fast logic components (e.g. microprocessors). To avoid radio frequency noise from the
motherboard, which desensitizes the receiver, PCB strip lines on the user board should be
designed as short as possible, and using PCB ground plane layer is also recommended.
Note that 868 MHz whip antennas do not show any directional effects under free-field radio-
wave propagation conditions (spot-wise radiator). The RSSI voltage output can be used for
evaluating the influence of intuitive RF optimizations.
For a good antenna performance don’t roll up or twist the whip and please draw
attention to an overall whip distance of at least 10 mm (20 mm is better) from any
PCB strip, ground plane and conductive part or electric part.
©EnOcean GmbH Page 14 of 20 RCM 142 User Manual V1.1

Figure 13: Specification of the RCM whip antenna
b) Mounting an external antenna:
For mounting the receiver at bad RF locations (e.g. within a metal cabinet), an external
antenna has to be used. After resoldering the pre-installed whip antenna, the external antenna
can be connected to the equipment by a 50-Ohm coax feeder with Teflon insulation as follows
(connect the inner cable to the resoldered hole, and solder the shielding as short as possible to
the RCM Groundplane, length of insulation max. 4 mm):
Figure 14: Mounting an external antenna
©EnOcean GmbH Page 15 of 20 RCM 142 User Manual V1.1

3.3 Transmission Range
The main factors that influence the system transmission range are type and location of the
antennas of the receiver and the transmitter, type of terrain and degree of obstruction of the
link path, sources of interference affecting the receiver, and “Dead” spots caused by signal
reflections from nearby conductive objects. Since the expected transmission range strongly
depends on this system conditions, range tests should categorically be performed before
notification of a particular range that will be attainable by a certain application.
notification of a particular range that will be attainable by a particular application.
The following figures for expected transmission range are considered by using a PTM, a STM or
a TCM radio transmitter device and the RCM or the TCM radio receiver device with preinstalled
whip antenna and may be used as a rough guide only:
• Line-of-sight connections: Typically 30m range in corridors, up to 100m in halls
• Plasterboard walls / dry wood: Typically 30m range, through max. 5 walls
• Brick walls / aerated concrete: Typically 20m range, through max. 3 walls
• Ferroconcrete walls / ceilings: Typically 10m range, through max. 1 ceiling
• Fire-safety walls, elevator shafts, staircases and supply areas should be
considered as screening.
The angle at which the transmitted signal hits the wall is very important. The effective wall
thickness – and with it the signal attenuation – varies according to this angle. Signals should
be transmitted as directly as possible through the wall. Wall niches should be avoided. Other
factors restricting transmission range:
• Switch mounted on metal surfaces (up to 30% loss of transmission
range)
• Hollow lightweight walls filled with insulating wool on metal foil
• False ceilings with panels of metal or carbon fiber
• Lead glass or glass with metal coating, steel furniture
The distance between EnOcean receivers and other transmitting devices such as computers,
audio and video equipment that also emit high-frequency signals should be at least 0.5m
A summarized application note to determine the transmission range within buildings are
available as download from www.enocean.com.
Attention for US applications: Please note that 868 MHz is used in the United States
of America by trunk radio also. A decrease of transmitter range should be
considered, mainly near to radio beacons of fire brigades.
©EnOcean GmbH Page 16 of 20 RCM 142 User Manual V1.1

3.4 Power Supply Requirements
The ripple-to-noise ratio on the supply rail should be below 10mVp-p to avoid problems. If the
quality of the supply is in doubt, it is recommended that a 10uF low-ESR tantalum or similar
capacitor be added between the module supply pin (Vcc) and ground, together with a 10 Ohm
series feed resistor between the Vcc pin and the supply rail.
3.5 LMI Output Connection
Example of a learning status indication by LEDs at 2 channels mode with decoupled loads
during learning mode (the decoupling of the load is only necessary if status indication through
connected actors is not appropriate). Note: LMI is Active High during learning mode; OUT_0
and OUT_1 are open collector outputs (Active Low).
OUT_1
OUT_0
LMI
Figure 15: Example of LMI output connection
3.6 CE Approval Requirements
The modules bear the EC conformity marking CE and conforms to the R&TTE EU-directive on
radio equipment. The assembly conforms to the European and national requirements of
electromagnetic compatibility. The conformity has been proven and the according
documentation has been deposited at EnOcean. The RCM modules can be operated
without notification and free of charge in the area of the European Union, in
Switzerland, in Cyprus, in Czech, in Estonia, in Hungary, in Latvia, in Lithuania, in
Malta, in Poland, in Romania and in Slovenia. The following provisos apply:
• EnOcean RF modules must not be modified or used outside their specification
limits.
• EnOcean RF modules may only be used to transfer digital or digitized data.
Analog speech and/or music are not permitted.
©EnOcean GmbH Page 17 of 20 RCM 142 User Manual V1.1

• The final product incorporating EnOcean RF modules must itself meet the
essential requirement of the R&TTE Directive and a CE marking must be affixed
on the final product and on the sales packaging each. Operating instructions
containing a Declaration of Conformity has to be attached.
• If transmitters are used according to the regulations of the 868.3 MHz band, a
so-called “Duty Cycle” of 1% per hour for each transmitter must not be
exceeded.
3.7 FCC/IC Approval Requirements
Because of the very low radiated field strength on average, the 868.3 MHz EnOcean
radio technology can be approved in the USA and in Canada.
In the US approval of receivers is not necessary in general. On a voluntary base an US
representative can last out a "Declaration of Conformity" (DOC) together with technical
documentation. The measurements has to be done by a FCC notified body with respect to FCC
Part 15B. Product labeling should be according Part 15 of the FCC Rules, page 11.
In Canada receivers < 960 MHz must be approved! The measurements of the finished
device has to be done by a IC notified laboratory with respect to RSS-210 of Industry Canada,
section 7. The receiver has to be labeled with IC approval number.
Please note: 868 MHz frequency range is used by Trunk Radio in the US. Since a clear
reduction of transmission range is to be expected near to trunk radio stations, range
tests at the system’s target location should categorically be performed before
notification of a particular range in the US and Canada!
©EnOcean GmbH Page 18 of 20 RCM 142 User Manual V1.1

4. DEVELOPMENT TOOLS
4.1 Evaluation Kit EVA 100
EVA 100 is an evaluation kit to support the development of
applications based on the EnOcean receiver modules RCM 1xx.
EVA 100 supports a quite easy setting-up operation of the
receiver side when EnOcean transmitter modules are
evaluated.
Type EnOcean Ordering Code Scope of supply
EVA 100 H3004-G100 • Evaluation board EVA-PCB
• EnOcean radio transmitter devices PTM
100 and STM 100
• EnOcean receiver modules RCM 110 and
RCM 120
• CD with RS232 PC-link monitor software
and detailed kit documentation
• Wall power supply for EVA-PCB
• Convenient equipment case
4.2 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 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.
©EnOcean GmbH Page 19 of 20 RCM 142 User Manual V1.1

©EnOcean GmbH Page 20 of 20 RCM 142 User Manual V1.1
5. DECLARATION OF CE CONFORMITY