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Spread Spectrum Wireless Data Transceiver User Manual

Technical Specifications

900 MHz Transceiver Specifications

Specification

Frequency

902 to 928 MHz

Transmit

Output Power

5 mW to 1 W (+30 dBm) See RF transmit power settings.

Range

60 miles Line Of Sight, 0 dB antenna gain

Modulation

Spread spectrum GSK, 120 or 170 Kbps

Spreading method

Frequency hopping

Occupied bandwidth

230 MHz

Receive

Sensitivity

-110 dBm at 10-4 bit error rate

-108 dBm at 10-6 bit error rate

Selectivity

20 dB at ± 115 kHz
60 dB at fc ± 145 kHz

System gain

140 dB

Data transmission

Data rate

115.2 kbps sustained throughput*

57.6 kbps sustained throughput* with repeaters.

Error detection

32 Bit CRC, retransmit on error

Data encryption

Substitution, dynamic key

Max link throughput

Kbaud standard speed, 38.4 Kbaud low speed.

Data interface

RS-232/RS485 1200 Baud to 230.4 Baud, async, full duplex
TTL (RF board level only)

Ethernet 10BaseT

Power requirements

Supply voltage

6 to 30 VDC

Transmit current, for 1 W power
at 100% duty cycle

6 VDC: 1 A

12 VDC: 520 mA

30 VDC: 230 mA

Receive current

6 VDC: 140 mA
12 VDC: 75 mA
30 VDC: 55 mA

Idle current

6 VDC: 37 mA

12 VDC: 21 mA

30 VDC: 16 mA

Sleep current

6 VDC: 12 mA

12 VDC: 6 mA

30 VDC: 5 mA

Operating modes

Point-to-Point

Point to-MultiPoint

Store and forward Repeater

Operating environment

-40° C- +75° C, 0 to 95% humidity non-condensing

* At 100% receive success rate. RF data rate setting of 2.

LUM0002AD Version

6.1

Содержание DGRO9RFS

Страница 1: ...Transceiver User Manual Spread Spectrum Wireless Data Transceiver User Manual Version 6 1 FreeWave Technologies Inc 1880 South Flatiron Court Boulder CO 80301 303 444 3862 303 786 9948 Fax www FreeWav...

Страница 2: ...product RESTRICTED RIGHTS Microsoft and Windows are registered trademarks of the Microsoft Corporation pcANYWHERE is a registered trademark of Symantec Corporation Other product names mentioned in th...

Страница 3: ...s A B C and D or non hazardous locations only Input voltage for Model FGRO9CSU is 6 to 30 volts DC Model DGRO9RFS is suitable for use in Class 1 Division 2 Groups A B C and D or non hazardous location...

Страница 4: ...ted and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a r...

Страница 5: ...Slave Master Switch able Operation Mode Mode 6 20 Script File or AT commands 21 BAUD RATE 24 SET BAUD RATE 24 CALL BOOK 27 EDIT CALL BOOK 27 Programming Point to Point Extended Call Book to Use Three...

Страница 6: ...WORDS 47 SETTING A PASSWORD 47 Changing a Password 47 Disabling a Password 47 TIME DIVISIBLE MULTIPLE ACCESS TDMA 47 ADDITIONAL SETTINGS 48 LOW BAUD RATES 48 SETUP TIMEOUT 48 FACTORY DEFAULT SETTINGS...

Страница 7: ...dem cable If the FreeWave transceivers are to be used in an application where a null modem cable is used such as communication between two computers then the FreeWave transceivers can be connected dir...

Страница 8: ...is not acknowledged On the return trip to the Master all packets sent are acknowledged or retransmitted until they are acknowledged Therefore the return link in a MultiPoint system is generally very...

Страница 9: ...et Size Min Packet Size RF Data rate to be the same on all radios throughout the network 7 At the Main Menu press 5 Set the Network ID value to any value between 1 and 4095 except 255 Make sure this v...

Страница 10: ...duct Noise potential may be reduced on the bench by lowering the Xmit power 6 Shortly after both transceivers are plugged in they should establish a communications link with each other and the connect...

Страница 11: ...le lengths ranging from 3 to 200 feet When using an external antenna placement of that antenna is critical to a solid data link Other antennas in close proximity are a potential source of interference...

Страница 12: ...gram and instructions This program eliminates the need to use HyperTerminal to program the transceivers Once the transceiver is mounted and connected with the programming cable to the programming comp...

Страница 13: ...4 Click on the OK button The following Connect To dialog box appears 5 Select the connection type to be used from the Connect using drop down menu In most cases the connection type will be either Dir...

Страница 14: ...Spread Spectrum Wireless Data Transceiver User Manual LUM0002AD Version 6 1 14...

Страница 15: ...7 After selecting the appropriate menu items for each setting click on the OK button The following HyperTerminal dialog box appears 8 To connect HyperTerminal to the transceiver press the Setup button...

Страница 16: ...le menu IMPORTANT NOTE Whenever a change is made to the HyperTerminal settings in an open terminal session the connection must be disconnected then reconnected before the settings will take effect Con...

Страница 17: ...tton to close the Properties dialog box 5 Click on the Disconnect button and then click the Call button 6 Press the setup button on the back of the transceiver The setup menu screen should appear 3 Th...

Страница 18: ...n When setting up the transceiver remember that a number of parameters are controlled by the settings in the Master Therefore deploying the Master on the communications end where it will be easier to...

Страница 19: ...er has no security features When a transceiver is designated a Point to Point Slave Repeater it will allow any Master to use it as a Repeater Point to Point Repeater 5 FreeWave allows the use of up to...

Страница 20: ...stics turned off The transceiver remains in Slave mode until called by another transceiver in its Call Book or instructed to call another transceiver through an AT command All script file or AT comman...

Страница 21: ...nds After receiving a Setting AT command the transceiver will process the command and when finished it will remain in the Point to Point Slave Master Switchable mode Conversely if the Communication Li...

Страница 22: ...zero ATXCA will change Entry to Call to All If a link to a Slave needs to be made without using a Repeater it is imperative that the ATXC command is issued Otherwise issue the command ATD where is th...

Страница 23: ...int Slave Master Switchable mode accepts the command ATD where is any transceiver serial number Upon receipt of this command the transceiver calls the transceiver even if the number is not in the send...

Страница 24: ...ud rate for the transceiver on the instrumentation might be set to 9600 and the transceiver on the engineer s computer might be set to 57 600 or 115 200 Set Baud Rate 1 Selecting 1 Set Baud Rate from...

Страница 25: ...ilable The default setting for Modbus RTU is 0 Not Enabled To enable the Modbus RTU mode 1 In the Set Baud Rate menu enter B and then select 1 2 In the Set MultiPoint Parameters menu set Master Packet...

Страница 26: ...cable for this port ASC2009DC is available from FreeWave Note DO NOT change this setting unless the correct programming cable is available for the new setting Turn On Off Delay E Turn On Delay It set...

Страница 27: ...s to be used with each transceiver and designate which Slave the Master will call A specific Slave may be called by entering C at the prompt followed by the menu number corresponding to that Slave To...

Страница 28: ...to the Slave On the next Call Book line enter 999 9999 as the next transceiver to call When prompted for the Repeaters enter the third and fourth Repeaters in the link The illustration below depicts...

Страница 29: ...ber Repeater1 Repeater2 0 555 0001 1 555 0002 2 000 0000 At times it may be desirable to force a Slave to go through a specific MultiPoint Repeater In this scenario the Slave s Call Book should contai...

Страница 30: ...ns of the transceiver There are 15 choices available for the Frequency Key 0 9 and A E representing 15 different pseudo random hop patterns This is to minimize the interference with other FreeWave tra...

Страница 31: ...uencies may be set ranging from 50 to 112 2 HOP FREQ OFFSET The Hop Freq Offset option is not functional in the 900 MHz spread spectrum transceiver In the 2 4 GHz Transceivers Freq Offset allows the u...

Страница 32: ...andard hop table Binary Zone Number LSB First Beginning Freq MHz Ending Freq MHz Number Of Channels 0 902 2464 903 6288 7 1 903 8592 905 2416 7 2 905 4720 906 8544 7 3 907 0848 908 4672 7 4 908 6976 9...

Страница 33: ...r to stay within FCC regulations it is required that a minimum of 50 separate frequency channels be used within a hop pattern This means that a minimum of 8 frequency zones along with the Standard hop...

Страница 34: ...Table parameters The user is then presented with 5 additional choices Selection 0 allows the user to determine which portion of the band to use Selection Band 0 Entire band 2 400 2 4835 GHz 1 Entire...

Страница 35: ...8 2441 7792 2446 9632 9 2446 9632 2452 1472 10 2452 1472 2457 3312 11 2457 3312 2462 5152 12 2462 5152 2467 6992 13 2467 6992 2472 8832 14 2472 8832 2478 0672 15 2478 0672 2483 2512 WARNING In order t...

Страница 36: ...to the Slave s transmission in addition to the quantity in the Min Packet Size Setting Packet size is determined by a combination of the setting entered by the user and the RF Data Rate Tables 7 8 and...

Страница 37: ...ta Rate This is not to be confused with the RS232 Baud Rate Setting 2 should be used when the transceivers are close together and data throughput needs to be optimized Setting 2 must also be used when...

Страница 38: ...determine this frequency Setting both parameters to their maximum of 9 and 9 will produce a maximum latency time of approximately 21 ms At their minimum numbers the time will be approximately 5 9 ms...

Страница 39: ...h the transceiver will remain in normal operation regardless of the Lowpower Mode setting Once RTS is dropped it will go back into the preset lowpower mode 5 If the transceiver has DTRConnect option s...

Страница 40: ...distance of the link between transceiver Statistics are gathered during each data link and are reset when the next link begins Show Radio Statistics Selecting 4 Show Radio Statistics from the main men...

Страница 41: ...op table The individual measurement values at each frequency hop channel are shown in the frequency table Press the Enter key on the keyboard when the Radio Statistics menu is displayed accesses the f...

Страница 42: ...ved every packet from the Master To address this issue the user may modify Master Packet Repeat setting assigning a value between 0 the packet is transmitted once to 9 the packet is transmitted 10 tim...

Страница 43: ...retransmit the packet to the Master a low setting will assign low odds to the Slave attempting to transmit Conversely a high setting will assign high odds An example of how this parameter might be us...

Страница 44: ...ameter in the Master must be set to 0 2 The Master must have a 1 PPS pulse on the DTR pin 3 The 1 PPS Enable Delay parameter on the Slaves must be enabled The calibration on the Slave is typically fac...

Страница 45: ...D 1 Rcv Subnet ID This setting identifies which transceiver a Repeater or Slave will listen to 2 Xmt Subnet ID This setting identifies the ID this device transmits with and in turn which devices will...

Страница 46: ...lave to link with the first Master or Repeater it hears with the correct NetworkID Note In firmware v2 40 and above even though the Subnet ID default is F F the radios behave as if their Subnet IDs ar...

Страница 47: ...e has been enabled it is possible to change to a new password To enter a new password select 8 from the Main Menu At the Enter Security Code prompt enter the current password Once the password has bee...

Страница 48: ...ettings used by users are described below Low Baud Rates The transceiver s RS232 baud rate may be set to 300 600 or 900 baud Please contact FreeWave Technical Support for more information regarding th...

Страница 49: ...led 4 Government Rules 0 1 MAX PACKET SIZE 8 2 MIN PACKET SIZE 9 3 XMT RATE 1 4 RF DATA RATE 3 5 RF XMT POWER 10 6 SLAVE SECURITY 0 7 RTS TO CTS 0 8 RETRY TIMEOUT 255 9 LOW POWER MODE 0 A High Noise 0...

Страница 50: ...to the Slave In this setup it may be desirable to use an external omni directional antenna on the Repeater To extend the range Yagi antennas may be used on either or both of the Master and Slave tran...

Страница 51: ...ed in an elevated location the transceiver may also be used as a Repeater when it is not used as a Slave At any time the Master may call any of the Slaves establish a connection and send and receive d...

Страница 52: ...o MultiPoint system This system uses one of the sites as a Slave Repeater This system works in the same manner as a standard MultiPoint system with Repeaters However the number of radios needed is red...

Страница 53: ...In this system the loading of the FreeWave transceiver is as described above which allows up to 256 1 8 unit load units on the bus Maximum line length is also 4 000 feet with a third wire required for...

Страница 54: ...y Input The transceivers only use this line in Point to Point Slave Master switch able mode or for DTR Connect 5 GND Ground Signal return for all signal lines shared with Pin 9 6 DSR Data Set Ready Ou...

Страница 55: ...or all of the RS232 signal lines DTR Transmit Data Receive Data Carrier Detect RTS and Clear to Send and TTL standard polarity and voltage level for the Interrupt pin Pin 1 B Power input Pin 2 Interru...

Страница 56: ...utput 2 Red Transmit data Output 3 Orange Receive data Input 4 Yellow DTR Input 5 Green Ground Signal ground 6 Blue Diagnostics TXD Output 7 Violet RTS Input 8 Gray Clear to send Output 9 White shield...

Страница 57: ...tained throughput with repeaters Error detection 32 Bit CRC retransmit on error Data encryption Substitution dynamic key Max link throughput Kbaud standard speed 38 4 Kbaud low speed Data interface RS...

Страница 58: ...onnector External antenna required N type female connector External antenna required N type female connector External antenna required N type female connector External antenna required FCC Identifier...

Страница 59: ...5 mA at 12 VDC 130 mA at 30 VDC Receive current 140 mA at 9 5 VDC 110 mA at 12 VDC 44 mA at 30 VDC Idle current 82 mA at 9 5 VDC 65 mA at 12 VDC 26 mA at 30 VDC Sleep current 15 8 mA at 9 5 VDC 12 5 m...

Страница 60: ...Spread Spectrum Wireless Data Transceiver User Manual OEM Board Level Mechanical Drawing LUM0002AD Version 6 1 60...

Страница 61: ...hooting information check the Support page at www FreeWave com FreeWave provides Technical Support Monday through Friday 8 00 AM to 5 00 PM Mountain Time UTC 7 Call us toll free at 1 800 548 5616 or f...

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