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bravo bravo bravo bravo DS-BRAVO-E smartradio telemetry module smartradio telemetry module smartradio telemetry module smartradio telemetry module applications applications applications applications ? ? remote control ? ? remote networking ? ? remote switching ? ? remote traffic lights part no part no part no part no description description description description bravo-t868 radio telemetry module sil package the bravo-t telemetry module provides a reliable tr ansceiver based industrial remote switch with up to 1,000 met res range. two or more modules may be combined to provide a si mple or com- plex network of radio switches. features features features features ? ? 8 channel transceiver module 8 channel transceiver module 8 channel transceiver module 8 channel transceiver module ? ? range up to 1,000 metres range up to 1,000 metres range up to 1,000 metres range up to 1,000 metres ? ? 8 digital input/outputs 8 digital input/outputs 8 digital input/outputs 8 digital input/outputs ? ? receiver outputs mirror receiver outputs mirror receiver outputs mirror receiver outputs mirror transmitter inputs transmitter inputs transmitter inputs transmitter inputs ? ? minimal external components minimal external components minimal external components minimal external components ? ? secure data protocol secure data protocol secure data protocol secure data protocol ? ? ultra low power 1.8 ultra low power 1.8 ultra low power 1.8 ultra low power 1.8 3.6v 3.6v 3.6v 3.6v ? ? ce compliant for licence free use ce compliant for licence free use ce compliant for licence free use ce compliant for licence free use ? ? easy pairing process easy pairing process easy pairing process easy pairing process ? ? one to one and one to many operation one to one and one to many operation one to one and one to many operation one to one and one to many operation ? ? 869.5mhz operating frequency 869.5mhz operating frequency 869.5mhz operating frequency 869.5mhz operating frequency ? ? +13dbm transmit power +13dbm transmit power +13dbm transmit power +13dbm transmit power ? ? single in line module single in line module single in line module single in line module
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 2 pin out pin out pin out pin out pin description pin description pin description pin description pin no pin no pin no pin no name name name name direction direction direction direction description description description description 1 ant in antenna input/output 50ohm impedance 2, 15 gnd in connect to ground 3, 4, 7, 8, 9, 11, 12 14 i/o1-8 in / out when configured as transmitter:active low when configured as transmitter:active low when configured as transmitter:active low when configured as transmitter:active low digital inputs: high impedance inputs when configured as receiver: active high when configured as receiver: active high when configured as receiver: active high when configured as receiver: active high digital outputs: lvcmos output drive 5 lrn sw in learn switch input: connection to an external, optional learn switch. if on board switch or to be used this input can be left unconnected 6 lrn led out optional led drive output mirrors on-b oard led 10 tx/rx in connect to vcc : module is a transmitter connect to gnd : module is a receiver 16 vcc in supply voltage 13 w-dog in / out transmitter= input connect to vcc : watchdog is disabled connect to gnd : watchdog is enabled receiver= output high : watchdog is healthy low : watchdog fault! 17,18 n/c n/a leave unconnected general description of operation general description of operation general description of operation general description of operation each module can be set to act as a transmitter or receiver a telemetry system is achieved when two modules are paired together, as transmitte r (bravo-tx) and receiver (bravo-rx). each time any input changes on the bravo-tx, it will transmit the status of all inputs to the paired bravo-rx(s). the bravo-rx(s) which will set their outputs to match the bravo-tx inputs. after each state change the modules will re turn to sleep mode. note: all of the 8 channels are common to all modul es in a system note: all of the 8 channels are common to all modul es in a system note: all of the 8 channels are common to all modul es in a system note: all of the 8 channels are common to all modul es in a system example: example: example: example: if you are using a system with two or many bravo modules each channel be will com- mon to all modules ie. if you change state on trans mitter input 8, then all receiver output 8s will also change state.
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 3 bravo configured as a transmitter bravo configured as a transmitter bravo configured as a transmitter bravo configured as a transmitter 1. 1.1. 1. operation operation operation operation when configured as a transmitter the bravo module w ill automatically default to low power sleep mode until any input state change takes place . on receipt of an input state change the bravo-tx wi ll transmit a packet showing the state of all inputs at the time of the change (multiple i nput changes may take place simultaneously) 1.1 1.1 1.1 1.1 watchdog watchdog watchdog watchdog if watchdog is enabled the bravo-tx will transmit a background packet containing the current status of the inputs every 5 minutes. 1.2 1.2 1.2 1.2 digital inputs digital inputs digital inputs digital inputs high impedance inputs, lvcmos / lvttl compatible, 5 v tolerant. can be connected directly to cmos/ttl logic or swit ch inputs connected to 0v or vcc a change on the input will cause the bravo-tx to wa ke, read all inputs and initiate rf transmission. description: description: description: description: this example shows a bravo module configured as a transmitter with all 8 inputs conne cted and watchdog disabled. notes: notes: notes: notes: all input switches would need to be connected to g nd to activate. transmitter application circuit example transmitter application circuit example transmitter application circuit example transmitter application circuit example
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 4 bravo configured as a receiver bravo configured as a receiver bravo configured as a receiver bravo configured as a receiver 1. 1.1. 1. operation operation operation operation when configured as a receiver the bravo module will remain in a low power listening mode. when a valid packet is received it will wake and ac tion any output state changes required. 2. 2.2. 2. watchdog enabled watchdog enabled watchdog enabled watchdog enabled if watchdog is enabled the bravo-rx will await a signal from a paired bravo-tx module. when the watchdog signal is received ok the n the watchdog output will be main- tained active high. if no watchdog signal is received in any 30minute p eriod then the bravo-rx will drop the watchdog output. note note note note: watchdog must be enabled on both tx and rx fo r it to work. digital outputs digital outputs digital outputs digital outputs active high lvcmos / lvttl compatible outputs. can be connected directly to cmos/ ttl logic or drive. optional external learn switch and led example circ uit optional external learn switch and led example circ uit optional external learn switch and led example circ uit optional external learn switch and led example circ uit receiver example application circuit receiver example application circuit receiver example application circuit receiver example application circuit description: description: description: description: this example shows a bravo module configured as a r eceiver with all 8 outputs connected and watchdog disabled. note: note: note: note: the external learn switch and led are also not fitted in this example.
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 5 mode mode mode mode led led led led description description description description normal operation flickering on module is transmitting or receiving d ata off no rf data is being transmitted/received learn mode (bravo-rx only) flashing at low speed bravo-rx learn button pressed: module is searching for another to pair with. learn mode times out after 10 seconds flashing at high speed for 3secs bravo-rx pairing successful pairing process bravo pairing process bravo pairing process bravo pairing process bravo- -- -tx to bravo tx to bravo tx to bravo tx to bravo- -- -rx rxrx rx each bravo module has a unique serial number identit y. they may be paired together using the learn button/input so that they operate in syste ms in: one:one, one:many and many:one formats. each bravo-rx can store 70 bravo-tx identit ies. note: watchdog should not be enabled for many to one systems 3.1 3.1 3.1 3.1 pairing process: learn: pairing process: learn: pairing process: learn: pairing process: learn: 1. briefly press the learn switch (or activate l earn input) on the bravo-rx 2. briefly activate any input on the bravo-tx paring process: erase paring process: erase paring process: erase paring process: erase 1. press and hold learn switch (input) on the re ceiver for more than 10seconds. 3.2 3.2 3.2 3.2 led indication of the pairing process is given by: led indication of the pairing process is given by: led indication of the pairing process is given by: led indication of the pairing process is given by:
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 6 application example application example application example application example one:one one:one one:one one:one operation operation operation operation application example: application example: application example: application example: one:many one:many one:many one:many operation operation operation operation operational application examples operational application examples operational application examples operational application examples in this application the outputs at the receiver wil l match the inputs at the transmitter. in this application the outputs at each of the rece ivers will track the inputs at the transmitter.
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 7 range range range range the antenna choice and position directly affects th e system range, keep it clear of any large metal parts . the best position is protruding verti cally from the top of the product. this is of- ten not desirable for practical reasons and thus a compromise may be needed. note that the space around the antenna is as important as the ant enna itself. all radio systems are depend- ent on a radio signal being received through airspa ce. the range quoted is the optimal in direct line of s ight without obstacles and in good atmos- pheric conditions. range is affected by many things, for example local environmental conditions, atmospheric conditions, interference from other radio transmitt ers. for evaluating the local environment please see our rf meter (ds006) in very worse case applications the range quoted ma y be reduced dramatically below the optimal range stated. recommended antenna 868mhz recommended antenna 868mhz recommended antenna 868mhz recommended antenna 868mhz we have a range of antennas on 868mhz that are suit able for use with the bravo modules. to view our range please visit our website: http://www.rfsolutions.co.uk/acatalog/868mhz_antenn a.html . mechanical dimensions mechanical dimensions mechanical dimensions mechanical dimensions
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 8 technical specifications technical specifications technical specifications technical specifications absolute maximums absolute maximums absolute maximums absolute maximums : :: : temperature range temperature range temperature range temperature range: storage C50 to +125 o c. parameter parameter parameter parameter min min min min max max max max units units units units supply voltage -0.3 4.0 v voltage on any input vcc > 2.2v vcc < 2.2v 5.8 vcc+3. v v max input power (through rx antenna) +5 dbm max current sourced / sunk (per i/o) 100 ma max current sourced / sunk (total) 200 ma parameter parameter parameter parameter min min min min typical typical typical typical max max max max units units units units supply voltage 1.8 3.6 v operating temperature -40 +85 o c bravo- tx supply current: when transmitting when sleeping 30 11 ma ua bravo- rx supply current: when receiving 18.5 ma ac characteristics ac characteristics ac characteristics ac characteristics parameter parameter parameter parameter min min min min typical typical typical typical max max max max units units units units operating frequency 869.5 mhz operating temperature -40 +85 o c bravo- tx output power +13 dbm bravo- txrx fsk raw rf data rate 9.6 kbps bravo- rx sensitivity -121 dbm dc characteristics dc characteristics dc characteristics dc characteristics
bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module ds-bravo-1 page 9 whilst the information in this document is believed to be correct at the time of issue, rf solutions l td does not accept any liability whatsoever for its accuracy, adequacy or completeness. no express or implied war ranty or representation is given relating to the in formation contained in this document. rf solutions ltd reserves the right to make changes and improvements to the product(s) described herein without notice. buyers and other users should determine for them- selves the suitability of any such information or p roducts for their own particular requirements or sp ecification(s). rf solutions ltd shall not be liab le for any loss or damage caused as a result of users own determin ation of how to deploy or use rf solutions ltds pr oducts. use of rf solutions ltd products or compon ents in life support and/or safety applications is not a uthorised except with express written approval. no licences are created, implicitly or otherwise, unde r any of rf solutions ltds intellectual property rights. liabi lity for loss or damage resulting or caused by reli ance on the information contained herein or from th e use of the product (including liability resulting from neglige nce or where rf solutions ltd was aware of the poss ibility of such loss or damage arising) is excluded . this will not operate to limit or restrict rf solutions ltds lia bility for death or personal injury resulting from its negligence. reader response reader response reader response reader response it is our intention to provide you with the best do cumentation possible to ensure successful use of your rf solutions product. if you wish to provide your comments on organisatio n, clarity, subject matter, and ways in which our documentation can better serve you, pleas e email us your comments to the technical publications manager application: application: application: application: would you like a reply? y / n datasheet: ds-bravo-t-1 questions: questions: questions: questions: 1. what are the best features of this document? 2. how does this document meet your hardware and so ftware development needs? 3. do you find the organization of this document ea sy to follow? if not, why? 4. what additions to the document do you think woul d enhance the structure and subject? 5. what deletions from the document could be made w ithout affecting the usefulness? 6. is there any incorrect or misleading information (what and where)? 7. how would you improve this document? r f solutions ltd., r f solutions ltd., r f solutions ltd., r f solutions ltd., unit 21, cliffe industrial estate, unit 21, cliffe industrial estate, unit 21, cliffe industrial estate, unit 21, cliffe industrial estate, lewes, e. sussex. bn8 6jl. england. lewes, e. sussex. bn8 6jl. england. lewes, e. sussex. bn8 6jl. england. lewes, e. sussex. bn8 6jl. england. email : email : email : email : sales@rfsolutions.co.uk sales@rfsolutions.co.uk sales@rfsolutions.co.uk sales@rfsolutions.co.uk http://www.rfsolutions.co.uk http://www.rfsolutions.co.uk http://www.rfsolutions.co.uk http://www.rfsolutions.co.uk tel sales: tel sales: tel sales: tel sales: 01273 898 020 01273 898 020 01273 898 020 01273 898 020 tel technical: tel technical: tel technical: tel technical: 01273 898 007 01273 898 007 01273 898 007 01273 898 007 tel gen enq: tel gen enq: tel gen enq: tel gen enq: 01273 898 000 01273 898 000 01273 898 000 01273 898 000 rf solutions ltd. recycling notice rf solutions ltd. recycling notice rf solutions ltd. recycling notice rf solutions ltd. recycling notice meets the following ec directives: do not do not do not do not discard with normal waste, please recycle. rohs directive 2002/95/ec rohs directive 2002/95/ec rohs directive 2002/95/ec rohs directive 2002/95/ec specifies certain limits for hazardous substances. weee directive 2002/96/ec weee directive 2002/96/ec weee directive 2002/96/ec weee directive 2002/96/ec waste electrical & electronic equipment. this produ ct must be disposed of through a licensed weee collection point. rf solutions ltd., fulfils its weee obligations by membership of an ap- proved compliance scheme.
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bravo telemetry module bravo telemetry module bravo telemetry module bravo telemetry module information contained in this document is believed to be accurate, however no representation or warran ty is given and r.f. solutions ltd. assumes no liability with respect to the accuracy o f such information. use of r.f.solutions as critica l components in life support systems is not authorised except with express written approval from r.f.solutions ltd. rf solutions ltd. recycling notice rf solutions ltd. recycling notice rf solutions ltd. recycling notice rf solutions ltd. recycling notice meets the following ec directives: do not do not do not do not discard with normal waste, please recycle. rohs directive 2002/95/ec rohs directive 2002/95/ec rohs directive 2002/95/ec rohs directive 2002/95/ec specifies certain limits for hazardous substances. weee directive 2002/96/ec weee directive 2002/96/ec weee directive 2002/96/ec weee directive 2002/96/ec waste electrical & electronic equipment. this produ ct must be disposed of through a licensed weee collection point. rf solutions ltd., fulfills its weee obligations by membership of an ap- proved compliance scheme.

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