FPL3

FPL3 RADIOMETRIX | Alldatasheet

Document overview

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Technical content

Features

/square4 Conforms to ETSI EN 300 220-3 and EN 301 489-3 /square4 Conforms to Indian low power requirements for 865 - 867 MHz band /square4 High performance PLL synthesizer /square4 +26dBm RF power output /square4 Serial modem baud rate at 9600bps (half-duplex) /square4 Addressable point-to-point /square4 Usable range over 3km /square4 Fully screened. Low profile /square4 Re-programmable via RS232 interface

Applications

/square4 Asset tracking systems /square4 Industrial telemetry and telecommand /square4 High performance security system /square4 Fire alarms /square4 ROV control applications /square4 High speed data modems Technical Summary /square4 Operating frequencies: 865 - 867MHz (India) or 868 – 870MHz (EU) /square4 Maximum of 8 channels (depends on band allocation and data rate) /square4 Transmit power: 400mW (+26dBm) nominal /square4 Supply range: +5V regulated /square4 Current consumption: 500mA (at 400mW output) transm it, 50mA receive /square4 Modulation: 16kbps bi-phase FSK /square4 Receiver sensitivity: -107dBm for <1% data errors /square4 Size: 67 x 30 x 12mm The FPL3 is a 9600baud half- duplex multi channel OEM radio modem with a power output of 400mW. FPL3 operates in the European 500mW 869.40 - 869.65MHz non- specific SRD sub- band. It is also available in the Indian licence free 865 - 867MHz band (General telemetry and RFID). Figure 1: FPL3-866-9 High power Multichannel 869MHz band Data Link Hartcran House, 231 Kenton Lane, H arrow, Middlesex, HA3 8RP, England Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com Issue 2, May 2016 FPL3

Radiometrix Ltd FPL3 Data Sheet (preliminary) page 2 Figure 2: FPL3 block diagram

Radiometrix Ltd FPL3 Data Sheet (preliminary) page 3 Pin Description NOTES: 1. RXD and TXD are inverted "RS232" data streams (5 v cmos levels) RXD has a 47K pullup to +5v 2. P1 - P3 (parallel channel selects) are active LO W and have internal 47K pullups to 4v 3. N_TX_ON (pin 2) is a logic output (logic 1 = 5v. ) (this is a high impedance pin. +/-100uA sink/source max) 4. The internal modem is compatible with the Radiom etrix i9600 chip It supports fully transparent 9600 baud (1+8+1) asynchronous data, with a first byte in to first byte out latency of 14mS 5. The radio programming port (PGM) operates at 240 0 baud. (Command set specific to this design). The unit is capable of operating in 'basic' parallel channel select only mode, or in serial controlled 'expanded' mode 6. The i9600 chip can be put into program mode (to allow the address to be changed) by pulling the RSSI pin up to 5V. Modem programming uses the main TXD pin, not the radio PGM pin 7. The high current (500mA maximum) transmitter sup ply (5v regulated) is fed to a separate pin, on the RF out connector. The V supply (pin 4 on the user connector) also requires a 5v regulated supply, and draws up to 50mA Both pins must be supplied at all times (most users connect them to a common +5V supply) Pins Normal mode RF 1A NO PIN 2A RF in/out To the antenna 3A RF Gnd RF ground 4A GND 0V 5A GND 0V 6A Vcc (TX) +5V regulated supply for TX 7 User

1 TXD Transmit Data (Inverted RS232 at 5V CMOS logi c level)

2 N_TX_ON TX busy.

3 GND 0V

4 Vcc DC supply input (+5V regulated) 7

5 P3 Parallel channel select

6 P2 Parallel channel select

7 P1 Parallel channel select

8 PGM in Serial programming/control input (inverted logic level RS232) for radio

9 RSSI out DC level between 0.5V and 2.5V. 60dB dy namic range/ Modem program mode

10 RXD Receive Data (Inverted RS232 at 5V CMOS logi c level)

11 N/C (RX AF output)

Figure 3: FPL3 footprint (Top) view

Radiometrix Ltd FPL3 Data Sheet (preliminary) page 4 Serial interface – Modem operation To connect to a true RS232 device, inverting RS232-CMOS level shifters must be used. Maxim MAX232 or equivalent are ideal, but simple NPN transistor switches with pull-ups often suffice. With typical microcontrollers and UARTs, direct connection is possible. The Radio / data stream interface A 32 byte software FIFO is implemented in both the transmit and receive sub-routine. At the transmitting end this is used to allow for the transmitter start up time (about 5mS), while on receiving end it buffers arriving packets to the constant output data rate. All timing and data formatting tasks are handled by the internal firmware. The user need not worry about keying the transmitter before sending data as the link is entirely transparent. For transmission across the radio link data is formatted into packets, each comprising 3 bytes of data and a sync code. If less than 3 bytes are in the transmit end FIFO then a packet is still sent, but idle codes replaces the unused bytes. When the transmit end FIFO is completely emptied, then the transmitter is keyed off. . A link latency ( first byte in to tx to first byte out of rx) of 14mS is thus so achieved. Raw data is not fed to the radios. A coding operation in the transmit sub-routine, and decoding in the receiver, isolate the AC coupled, potentially noisy baseband radio environment from the datastream. The radio link is fed a continuous tone by the device. As in bi-phase codes, information is coded by varying the duration consecutive half-cycles of this tone. In our case half cycles of 62.5us and 31.25us are used. In idle (or 'preamble') state, a sequence of the longer cycles is sent (resembling an 8KHz tone). A packet comprises the Synchronising (or address) part, followed by the Data part, made up of twelve Groups (of four half cycles duration). Each Group encodes 2 data bits, so one byte is encoded by 4 Groups. Programming - Modem The internal modem chip is programmed using the i9600 commands, at 9600 baud, through the TXD pin. The RSSI pin must be pulled up to 5v to enter modem programming mode An RS232 terminal emulator (such as Aterm or HyperTerminal) is an ideal tool. Terminal program configured with following setup: 9600baud, 1 start bit, 8 data bits, no parity, 1 o r 2 stop bits The unit will only respond to certain command strings: ADDR0 to ADDR7 <CR>: These commands set up one of 8 unique addresses. An FPL3 will only communicate with a unit set to the same address. Address is stored in volatile memory. On power-up the modem reverts to the default in EEPROM (as supplied this is always address 0) SETPROGRAM <CR>: Writes the current address and current channel into EEPROM as the new default. A tilda character (~, ascii 126dec) sent by the unit indicates end of EEPROM write sequence (these commands are normally only used for factory diagnostics) NOTONE <CR>: Transmit unmodulated carrier LFTONE <CR>: Transmit carrier modulated with 8KHz squarewave HFTONE <CR>: Transmit carrier modulated with 16KHz squarewave # <CR>: Transmitter off A Carriage Return ‘<CR>’ (00Dhex) should be entered after each command sequence to execute it. Releasing the SETUP pin to high state returns the modem to normal operation.

Radiometrix Ltd FPL3 Data Sheet (preliminary) page 5 Programming - Radio The RF circuits have their own programming input Serial data is sent to the unit on the programming input (PGM- pin 8). To successfully program the unit, it must be powered An RS232 terminal emulator (such as Aterm or HyperTerminal) is an ideal tool. Terminal program configured with following setup: 2400baud, 1 start bit, 8 data bits, no parity, 1 o r 2 stop bits Serial interface commands Unlike earlier Radiometrix multichannel units, the FPL3 has separate N and R registers for each channel, on transmit and on receive. In other words, the frequency of each channel is individually programmed in every mode. Commands include: Commands Function GOCHAN a serial select of channel a (ch0 to 7) SETPAR channel selected by 3 bit parallel input SETSER channel selected by most recent 'gochan' operation <cr> process entry / clear all buffers # disable command mode a = single digit channel number from 0 to 7 Most users will not need to edit the table which relates channel frequency, channel number and synthesizer register programming values. The commands below are used to access the eeprom table containing this information. Users should be warned that, in order to get the optimum switching speed from the module, the standard channel setup uses a different reference frequency for each channel, and the absolute calculated channel frequency is allowed to deviate by up to +/-2KHz from the nominal LOAD aa nnnnn (aa = 00 – 07) set value of N for channel a , for receive LOAD aa nnnnn (aa = 08 – 15) set value of N for channel a , for transmit LOAD aa rrrrr (aa = 16 – 23) set value of R for channel a , for receive LOAD aa rrrrr (aa = 24 – 31) set value of R for channel a , for transmit Reference frequency (10MHz/R) must be in the range 210 to 300KHz (tx) or 175 to 300KHz (rx). As a rule of thumb, an R value greater than 45 (tx) or 55 (rx) should be viewed with suspicion. aa = eprom location number from 0 to 31 nnnnn = a synthesizer N register value, (up to 65535) rrrrr = the synthesizer R register value, (up to 16383) ALL COMMANDS MUST BE IN UPPER CASE. Notice that the synthesizer and VCO operate at half the output frequency, so for a frequency of 869.475MHz, the actual N/R values will be set for 434.7375MHz Further information TBA NOTE: /square4 A pause of at least 50mS must be allowed between command strings (eeprom programming time)

Radiometrix Ltd FPL3 Data Sheet (preliminary) page 6 Condensed specifications (All details are provisional) Frequency 868 – 870MHz (EU), 865 - 867MHz (India) Frequency stability +/-5ppm (better than ±5kHz) Channel spacing 125kHz Number of channels 8 maximum In the EU version 2 usable CH0 869.475MHz CH1 869.565MHz (also CH2-3) (Chan 4-7 are programmed for 869.50MHz, for backward compatibility) In Indian allocation, 8 usable channels CH0 = 865.143 MHz CH1 = 865.294 MHz CH2 = 865.500 MHz CH3 = 865.789 MHz CH4 = 866.047 MHz CH5 = 866.383 MHz CH6 = 866.531 MHz CH7 = 866.829 MHz Supply Receive 5.0V regulated at 50mA Transmit: 5.0V regulated at 500mA for 400mW output Operating temperature -20 to +70 οC (Storage -30 to +70 οC) Spurious radiations Compliant with ETSI EN 300 220- 3 and EN 301 489-3 (EU) Interface User 11 pin 0.1" pitch molex RF and TX supply 5 pin 0.1" pitch molex Recommended PCB hole size 1.2mm (min.) Size 67 x 30 x 12mm Transmitter Output power 400mW (+26dBm) TX on switching time 5 ms Modulation type FSK TX modulation 16kbps biphase Deviation ±14kHz nominal Adjacent channel TX power -37dBm TX spurii <-36dBm Inputs 5V pk-pk CMOS data Receiver Sensitivity -107dBm for <1% data errors image / spurious -55dB blocking -80dB adjacent channel -60dB (Tested per. ETSI 300-220-2.3.1) Interface RSSI, TXD, RXD, TX_ON

Ordering Information

Part No. Description Frequency band (MHz) FPL3-869-9 EU version CH0:869.475MHz, CH1-CH3:869.565MHz, CH4-CH7:869.50MHz FPL3-866-9-IND Indian version CH0:865.143MHz - CH7:866.829MHz

Radiometrix Ltd FPL3 Data Sheet (preliminary) page 7 Appendix [mW] [MHz] RF POWER [ERP] 100 500 600kHz 500kHz 250kHz 300kHz 25mW 25mW CEPT/ERC Rec 70-03, 868 MHz Band Plan 868.0 868.60 868.70 869.20 869.25 869.30 869.65 869.40 870.0 869.70 <1% or LBT No Spacing Non-specific SRD Non-specific SRD Non-specific SRD No Spacing up to 100% <0.1% or LBT <1% <10% or LBT <10% No Spacing 25kHz or Wide Band 25kHz Alarm Alarm <1% 25kHz or WB Alarm Social Alarm 10mW 25kHz <0.1% 100kHz 25mW 10mW 50kHz 50kHz 10mW Non-specific SRD 25kHz 50kHz http://www.erodocdb.dk/Docs/doc98/official/pdf/REC7003e.pdf

231 Kenton Lane

Harrow, Middlesex HA3 8RP ENGLAND Tel: +44 (0) 20 8909 9595 Fax: +44 (0) 20 8909 2233 sales@radiometrix.com www.radiometrix.com Copyright notice This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in whole or in part must give clear acknowledgement to the copyright owner. Limitation of liability The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the right to make changes or improvements in the design, specification or manufacture of its subassembly products without notice. Radiometrix Ltd does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. This data sheet neither states nor implies warranty of any kind, including fitness for any particular application. These radio devices may be subject to radio interference and may not function as intended if interference is present. We do NOT recommend their use for life critical applications. The Intrastat commodity code for all our modules is: 8542 6000 R&TTE Directive After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance to the essential requirements specified in Article 3 of the Directive, as appropriate to the particular equipment. Further details are available on The Office of Communications (Ofcom) web site: http://www.ofcom.org.uk/ Information Requests Ofcom Riverside House 2a Southwark Bridge Road London SE1 9HA Tel: +44 (0)300 123 3333 or 020 7981 3040 Fax: +44 (0)20 7981 3333 information.requests@ofcom.org.uk European Communications Office (ECO) Peblingehus Nansensgade 19 DK 1366 Copenhagen Tel. +45 33896300 Fax +45 33896330 ero@ero.dk www.ero.dk