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RF Receiver Modules
RCM 152

User Manual V1.31
October 2006

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Summary of Contents for RCM 152

Page 1: ...RF Receiver Modules RCM 152 User Manual V1 31 October 2006 ...

Page 2: ...or other rights of third parties are concerned liability is only assumed for modules not for the described applications processes and circuits EnOcean does not assume responsibility for use of modules described and limits its liability to the replacement of modules determined to be defective due to workmanship Devices or systems containing RF components must meet the essential requirements of the ...

Page 3: ..._________________________________________________ 11 2 6 Deleting Radio Transmitters_______________________________________________________ 12 2 7 Received Signal Strength Indicator RSSI _______________________________________ 13 3 APPLICATIONS INFORMATION _______________________________________________________ 14 3 1 Module Mounting ________________________________________________________________...

Page 4: ...0 radio window contacts Learning of mixed PTM and STM transmitters is not possible By assigning the first transmitter the operating mode is defined The operating mode can only be changed at empty ID memory e g after deleting all transmitters with the CLR button Mode RADIO SWITCH Each assigned transmitter can be used to change the switching state of the receiver It is possible to switch ON with one...

Page 5: ...sitivity 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 Note In serial mode all received EnOcean telegrams are transmitted RSSI Output indicat...

Page 6: ...in 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 152 S3002 B152 EnOcean GmbH Page 6 of 20 RCM 152 User Manual V1 31 ...

Page 7: ...perational 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 at the first power up in accordance to the pin connecting A later change of the operation mode is possible at power up but only if the ID memory is cleared in addition connect CLR pin to GND power down chang...

Page 8: ...ng 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 in addition see App...

Page 9: ...22K VCC CODE_2 CODE_1 CODE_0 10K 100n ADC internal 8K2 10K 22K VCC Figure 4 Equivalent schematics of Control Inputs pins 2 to 7 22K OUT_x OC external OUT_x TTL internal 4K7 22K OUT_x Open Collector external OUT_x internal TTL 4K7 Figure 5 Equivalent schematics of Functional Outputs pins 8 to 11 EnOcean GmbH Page 9 of 20 RCM 152 User Manual V1 31 ...

Page 10: ...rmware Operating Mode can only be changed at empty ID memory e g after deleting all transmitters with the CLR button a Mode RADIO SWITCH Each assigned transmitter can be used to change the switching state of the receiver It is possible to switch ON button I with one switch and OFF button O with another switch Initialization After Power up and Learning Phase the module output OUT_0 is inactive off ...

Page 11: ...lso draw attention to the notes about learnable transmitters in chapter 2 2 Operating Modes 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 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 contact...

Page 12: ...eadiness for learning Further transmitters can be learned immediately A maximum of 30 PTM transmitters or 2 STM 250 transmitters can be learned further attempts will be ignored instead of learning confirmation Operation Mode is entered 8 Leave the learning mode Contact again the LRN pin to GND longer than t 0 5 sec Note After passing the Learning Mode the OUT_0 open collector output is inactive an...

Page 13: ... 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 11 RSSI output characteristics En...

Page 14: ...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 i...

Page 15: ... 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 152 User Manual V1 31 ...

Page 16: ...s 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 ...

Page 17: ...ow 10mVp p 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 outp...

Page 18: ...y 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...

Page 19: ...r 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...

Page 20: ... EnOcean GmbH Page 20 of 20 RCM 152 User Manual V1 31 5 DECLARATION OF CE CONFORMITY ...

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