BRAVO-T915

BRAVO SmartRadio Telemetry Module Features • 8 Channel transceiver module • Range up to 1,000 metres • 8 Digital input/outputs • Receiver outputs mirror transmitter inputs • Minimal external components • Secure data protocol • Ultra low power 1.8—3.6V • Easy pairing process • One to one and one to many operation • 869.5 / 915MHz* operating versions • +13dBm transmit power Applications • Remote Control • Single in line module • Remote Networking • Incorporates Self Test Mode • Remote Switching • CE compliant for licence free use • Remote Traffic Lights • FCC Approved for use in USA (TBC)* Description The BRAVO-T telemetry module provides a reliable transceiver based industrial remote switch with up to 1,000 metres range. Two or more modules may be combined to provide a simple or complex network of radio switches. Ordering Information Part No BRAVO-T868 BRAVO-T915 (TBC)* Description Radio telemetry module SIL package 868MHz Radio telemetry module SIL package 915MHz (TBC)* DS-BRAVO-9 BRAVO Telemetry Module Pin-out Bravo LED ANT I/O 1 I/O 2 LRN SW LRN LED I/O 3 I/O 4 I/O 5 NC 9 10 11 12 13 14 15 16 17 18 NC 8 Vcc 7 GND 6 I/O 8 5 I/O 7 4 W-DOG 3 I/O 6 2 Tx / NRX 1 GND Learn Switch Pin Description Pin No Name Direction Description 1 ANT In Antenna input/output 50ohm impedance 2, 15 GND In Connect to ground In / Out When configured as transmitter:Active low Digital inputs: high impedance inputs When configured as receiver: Active High Digital outputs: LVCMOS output drive 3, 4, 7, 8, 9, 11, 12 14 I/O1-8 5 LRN SW In Learn switch input: Normally ‘high’ momentary connect to Ground to enter Learn Mode. If on board switch or to be used this input can be left unconnected 6 LRN LED Out Optional LED drive output Mirrors on-board LED 10 TX/RX In Connect to Vcc : Module is a transmitter Connect to GND : Module is a receiver 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! 16 Vcc In Supply voltage 17 N/C N/A Leave unconnected NC In TX MODE ONLY MOM/ LTCH In In RX MODE ONLY Momentary mode pull pin low - Connect to GND LATCH mode pull pin high - Connect to VCC 18 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 transmitter (BRAVO-Tx) and receiver (BRAVO-Rx). Each time any input changes on the BRAVO-Tx, it will transmit the input status to the paired BRAVO -Rx(s). The BRAVO-Rx(s) which will set their outputs to match the BRAVO-Tx input. After each state change the modules will return to sleep mode. Note: All of the 8 channels are common to all modules in a system Example: If you are using a system with two or many Bravo modules each channel be will common to all modules ie. if you change state on transmitter input 8, then all receiver output 8’s will also change state. DS-BRAVO-9 BRAVO Telemetry Module BRAVO Configured as a TRANSMITTER 1. Operation When configured as a transmitter the BRAVO module will automatically default to low power sleep mode until any input state change takes place. On receipt of an input state change the BRAVO-Tx will transmit a packet showing the state of changed input/s (multiple input changes may take place simultaneously). 1.1 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 Digital Inputs High impedance inputs, LVCMOS / LVTTL compatible, 5V tolerant. Can be connected directly to CMOS/TTL logic or switch inputs connected to 0V or VCC A change on the input will cause the BRAVO-Tx to wake, read all inputs and initiate RF transmission. Transmitter Application circuit example BRAVO LED LEARN Sw ANT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Vcc GND Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 Input 8 Description: This example shows a BRAVO module configured as a transmitter with all 8 inputs connected and watchdog disabled. Notes: All input switches would need to be connected to GND to activate. DS-BRAVO-9 BRAVO Telemetry Module BRAVO Configured as a RECEIVER Watchdog BRAVO-Rx will await a Watchdog signal from a paired BRAVO-Tx module. When the Watchdog signal is received, the watchdog output will be maintained active high. If no watchdog signal is received in any 30minute period then the BRAVO-Rx will drop the Watchdog output. Other outputs are unaffected. Digital outputs Active high LVCMOS / LVTTL compatible outputs. Can be connected directly to CMOS/TTL logic or drive. Receiver example application circuit BRAVO LED LEARN Sw ANT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Vcc GND Output Output Output Output Output Output Output Output 8 7 6 5 4 3 2 1 Description: This example shows a BRAVO module configured as a receiver with all 8 outputs connected and watchdog disabled. Note: The external learn switch and LED are also not fitted in this example. Optional external learn switch and LED example circuit 5 Learn Switch 6 560R Learn LED Vcc DS-BRAVO-9 BRAVO Telemetry Module Pairing Process Bravo-Tx to Bravo-RX Each BRAVO module has a unique serial number identity. They may be paired together using the LEARN button/input so that they operate in systems in: one:one, one:many and many:one formats. Each BRAVO-Rx can store 70 BRAVO-Tx identities. Note: “Watchdog” should not be enabled for many to one systems. 3.1 Pairing process : 1. Briefly press the “LEARN” switch (or activate LEARN input) on the BRAVO 2. After you release the learn button, the LEARN LED will flash once 3. This shows that output 1 is selected. 4. Press the LEARN button again, after it is released the Learn LED will flash twice, Continue in the same way to select outputs up to 8. 5. With your chosen output selected, briefly activate the input that you wish to pair. 6. The LEARN LED will flash quickly to show that pairing is complete. 7. Repeat the process to all required pairings Pairing Process Bravo-RX to Handheld Transmitter When pairing the BRAVO as a receiver to a handheld transmitter, such as our FOBBER or ELITE. The pairing process is completed manually (meaning you can pair any transmitter button, to any desired I/O). 3.1 Pairing process: 1. Briefly press the “LEARN” switch (or activate LEARN input) on the BRAVO 2. After you release the learn button, the LEARN LED will flash once 3. This shows that output 1 is selected. 4. Press the LEARN button again, after it is released the Learn LED will flash twice, Continue in the same way to select outputs up to 8. 5. With your chosen output selected, briefly press the button on the handset that you wish to pair. 6. The LEARN LED will flash quickly to show that pairing is complete. 7. Repeat the process to all required pairings. 3.2 Paring process: ERASE: 1. Press and Hold ‘LEARN’ switch (or input) on the BRAVO for more than 10 seconds. 2. The LEARN LED will start flashing to show that erase is complete 3. Release the LEARN switch. Notes: The maximum number of pairings is 15. One pairing is counted as a single button output association Pairings can be on one or many handsets. 3.3 LED indication of the pairing process is given by: Mode Normal operation Learn mode (BRAVO-Rx only) LED Description Flickering ON Module is transmitting or receiving data OFF No RF data is being transmitted/received 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 DS-BRAVO-9 BRAVO Telemetry Module Operational application examples Application example one:one operation Input 1 - 8 Bravo Transmitter Transmit Signal Bravo Receiver Output 1 - 8 In this application the outputs at the receiver will match the inputs at the transmitter. Application example: one:many operation Input 1 - 8 Bravo Transmitter Transmit Signal Bravo Receiver Input 1 - 8 Bravo Receiver Input 1 - 8 Bravo Receiver Input 1 - 8 In this application the outputs at each of the receivers will track the inputs at the transmitter. DS-BRAVO-9 BRAVO Telemetry Module Mechanical Dimensions 40.5mm 34.5mm 17mm 10.5mm 48mm 1 2 3 4mm 2.33mm 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 2.54mm Notes 1. Pins 2.54mm pitch 2. Pin Dims 0.4mm sq 3. All dims in mm Range Considerations The antenna choice and position directly affects the system range, keep it clear of any large metal parts. The best position is protruding vertically from the top of the product. This is often not desirable for practical reasons and thus a compromise may be needed. Note that the space around the antenna is as important as the antenna itself. All radio systems are dependent on a radio signal being received through airspace. The range quoted is the optimal in direct line of sight without obstacles and in good atmospheric conditions. Range is affected by many things, for example local environmental conditions, atmospheric conditions, interference from other radio transmitters. For evaluating the local environment please see our RF Meter (DS006). In very worse case applications the range quoted may be reduced dramatically below the optimal range stated. Self Test Mode The Bravo Module incorporates a self test which is initiated by applying power with the learn Button being held down. The Bravo Module then performs the following functions; 1. All I/O are set to outputs and are operated 2. in a traffic light sequence 0 to 8 to 0 again. 3. 4 on 4 off sequence 4. Transmits a full power RF signal for 10 seconds and operates the Learn LED 5. Enters RSSI (Received signal Strength) mode where outputs 1-8 are activated as a bar graph type output according to the strength of a valid RF signal received (from any carrier operating at the appropriate frequency (869.50MHz or 915MHz) 6. A Reset will be required to Exit DS-BRAVO-9 BRAVO Telemetry Module Technical Specifications Absolute Maximums: Temperature Range: Storage –50 to +125oC. DC Characteristics Parameter Min Max Units Supply Voltage -0.3 3.6 V 5.8 V Vcc+3.6 V Max Input power (through RX antenna) +5 dBm Max Current Sourced / Sunk (Per I/O) 10 mA Max Current Sourced / Sunk (Total) 20 mA Voltage on any Input Vcc > 2.2V Vcc < 2.2V DC Characteristics Parameter Min Supply Voltage Operating Temperature Typical Max Units 1.8 3.6 V -40 +85 C o BRAVO- Tx Supply Current: When Transmitting When sleeping 30 mA 6 uA 24 mA BRAVO- Rx Supply Current: When Receiving AC Characteristics Parameter Min Operating Frequency Typical Max 869.5 Operating Freq for 915Mhz version Operating Temperature Units MHz 915.00 915.27 -40 +85 MHz C o BRAVO- Tx Output Power +13 dBm BRAVO- Tx—Rx FSK Raw RF Data Rate 9.6 Kbps BRAVO- Rx Sensitivity -121 DS-BRAVO-9 dBm BRAVO Telemetry Module Simplified Declaration of Conformity (RED) BG - С настоящото RF Solutions Limited декларира, че този тип радиосъоръжение дефинирани в този документ е в съответствие с Директива 2014/53/ЕС. 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