User Manual
Contents
1. Parameter Name Parameter List RATE 4 9600 baud 5 14400 baud 6 19200 baud 7 38400 baud 8 57600 baud 9 115200 baud a default setting BITS Set number of bits in one byte 8 or 7 8 is a default setting STOP 1 One Stop bit 2 Two Stop bits PARITY 0 None a default setting 1 Odd 2 Even FLOW 0 None 1 Not used 2 HW RTS CTS a default setting 4 4 Special Commands 4 4 1 BOOT The BOOT command is intended to reboot the unit 4 4 2 HELP The HELP command types the list of all available commands Popular Commands BOOT Reboot the unit 26 www arwestcom com Command Line Interface Identification and Diagnostics Commands SAVE INFO Product ID along with Hardware Software Versions STATE Transceiver Status SAVE Save Current Configuration into Configuration File without lt CR gt Exit Data Mode DATAMODE Exit Command Mode LINK Print RF Link Operation Mode XMOD IMAGE Activate X Modem Protocol to load Firmware TSTSGL Displays Test Signals particularity See Manual for details 00 4 4 3 SAVE The SAVE command is intended to store the unit s currently used configuration into the User Configuration file The configuration stored in the User Configuration file is activated by automatically after unit s reboot 4 4 4 CFG2DFLT The CFG2DFLT command cleans current Configurat2. FH915 User Manual Version 1 2 Last Revised October 28 2013 All contents in this manual are copyrighted by ArWest Communications All rights reserved The information contained herein may not be used accessed copied stored displayed sold modified published or distributed or otherwise reproduced without express written consent from ArWest Communications www arwestcom com TABLE OF CONTENTS Preface cosmo dow ee semi RiGee meses ais ua dama eRe eee 7 Terms and Conditions sues era eee A a E A ERAN ARN engen ees 7 Regulatory Information veus a aa a anal La 9 WEEE Directives a i os ad ago a eco aan alien aS estamental 9 Technical ASsistance sa 2 a a lea A Ae 10 Return Material Authorization oooo oocooconooronr eee eens 10 Chapter 1 Product Features cece eee eee eee 11 1 1 Introduction 35 2 2022 LH en Hel Sr ee ci ak obs 11 1 2 Operating at Spread Spectrum Band 0 0 0 eee cece eens 12 1 3 Modulation Techniques ericcson 2 ee aa Dine anna wena eee 13 1 3 1 Management Tools cece cece teen een eens 13 SAA tee ht ec Bas EEN ele a etl Sri 13 Chapter 2 General Description 15 2 1 Physical Interfaces semana it ais teoremes sr ae 15 2 1 1 Serial Data Interface cece Lu La 15 241 2 Power Interfaces RR Sa 15 2 1 3 Power Consumption nosses teis riai cee eee ence ence 15 DNA AMEN AS io ES SER SE ORR S
3. FH915 radio transceiver uses two bands 902 928 MHz ISM license free USA band and European CEPT license free 868 870 MHz band In 902 928 MHz band FH915 radio uses frequency hopping transmission techniques The design is based on high level modulation techniques which include Modulation 902 0 928 0 GMSK Minimal Shift Keying with 64 0 kbps 128 200 0 kHz Gaussian Filtering The following are its key benefits e Ten optimized Frequency Hopping Patterns provides simultaneous operating of several units with minimum of mutual interference e FEC coding scheme used with GMSK modulation is based on Convolutional code and the Viterbi decoding algorithm which is the most resource consuming but it does Maximum likelihood decoding In 868 870 MHz band the design is based on high level modulation techniques which include Modulation Channel Spacing 12 5 kHz 25 kHz GMSK Minimal Shift Keying with 4 8kbps 19 6 kbps Gaussian Filtering The following are its key benefits e FEC coding scheme used with GMSK modulation is based on Convolutional code and the Viterbi decoding algorithm e Powerful FEC scheme used with ArWest proprietary frame format improves the tolerance to interference and ensures the highest link quality at distances range higher than 8 miles 13 km and roaming speeds of up to 60 mph 96 km h 1 3 1 Management Tools The built in management tools along with ModemVU conf
4. ECS Corp as it shown on the Figure 2 1 Adapter OEM Board to Power Supply 6 20 V DC 1A to Antenna Figure 3 1 FH915 connected to Evaluation Kit 3 2 Antenna connection The FH915 may be connected to external antenna using TNC to MMCX RA Antenna cable included in the Kit Figure 3 2 Antenna Connection www arwestcom com 17 Connection Power connection 3 3 Power connection The FH915 powered through Evaluation Kit and Power Cable included in Kit The Banana plugs of power cable may be connected to any available laboratory power supply battery or other power source with power parameters suitable for particular FH915 power specifications Caution Evaluation Kit does not provide any over voltage protection Connecting Evaluation Kit to voltage exceeding particular FH915 power voltage range may cause damage of FH915 and Evaluation kit board Caution Evaluation Kit provides reverse polarity protection only in voltages range specified for particular FH915 3 4 Serial RS 232 connection A standard Null Modem cable included in Kit with DB 9 Female connectors on both ends may be used to connect PC COM_X port with Serial port on adapter Adapter s DB 9 male connector external view and pinout is shown on the Figure 3 3 00000 A OLOO A Figure 3 3 DB 9 Male connector Table 3 1 DB 9 Male Connector Specification Pin Signal Name Dir Description 1 N
5. Firmware Compensation for Operation at Extremely Low and High Temperatures Compact Design www arwestcom com 35 Technical Specifications Technical Specifications Mechanical Properties For End product A 1 6 Mechanical Properties For End product Dimensions for PCB Mounted Enclosure 80 mm x VV 46 5 mm x H 7 6 9 5 mm 3 15 x 1 83 x 0 3 BOTTOM 2 95 in M 75 00 mm 1 1 83 in 46 50 mm p 3 15in i 80 00 mm TE El n So aa SIDE pa Connector 16 lead Thru hole 2x8 Header 050 DIMENSIONS mm inch 36 www arwestcom com Technical Specifications External Connectors Antenna Connector A 2 External Connectors A 2 1 Antenna Connector J2 is Antenna Input Output Connector MMCX RIGHT ANGLE PCB JACK AMPHENOL P N 908 24100 A 2 2 Main Connector The user ports connector is used to provide connection with an external DTE or with the PC running ModemVU management software applications Note The RS232 to TTL adapter must be used to provide physical level compatibility between COM port of PC running ModemVU and FH915 user interface port 16 Lead Header Connector ECS Corp P N 9616 D 1 01 03 PIN Signal Signal name Description 1 0 Comments Designator 1 GND GND Ground Signal and Chassis Ground 2 DSPUARTI TXD Transmit Data TTL Input Serial Data Input 3 DSPUART2 RXD Receive Data TTL Output for receiv
6. comply with any of the Terms or Conditions You agree to destroy the Software and manual upon termination of your use of the FH915 All ownership copyright and other intellectual property rights in and to the Software belong to ArWest Communications If these license terms are not acceptable return any unused software and manual CONFIDENTIALITY This Manual its contents and the Software collectively the Confidential Information are the confidential and proprietary information of ArWest Communications You agree to treat ArWest Communications Confidential Information with a degree of care no less stringent that the degree of care you would use in safeguarding your own most valuable trade secrets Nothing in this paragraph shall restrict you from disclosing Confidential Information to your employees as may be necessary or appropriate to operate or care for the FH915 Such employees must also keep the Confidentiality Information confidential In the event you become legally compelled to disclose any of the Confidential Information you shall give ArWest Communications immediate notice so that it may seek a protective order or other appropriate remedy WEBSITE OTHER STATEMENTS No statement contained at the ArWest Communications website or any other website or in any other advertisements or ArWest Communications literature or made by an employee or independent contractor of ArWest Communications modifies these Terms and Conditions in
7. device used in a mobile application at least 100 cm from any body part of the user or nearby persons Note Minimum separation distance of 100 cm between the antenna and persons must be maintained This product should never be used e Without the user thoroughly understanding operator s manual e After disabling safety systems or altering the product e With unauthorized accessories e Contrary to applicable laws rules and regulations DANGER THE FH915 SHOULD NEVER BE USED IN DANGEROUS ENVIRONMENTS 42 www arwestcom com Appendix D WARRANTY TERMS ArWest Communications Corp Inc Company warrants to the end user only that the Narrow Band Radio Modems Radios purchased a conforms to the Company s published specifications for the model purchased and b is free from defects in material or workmanship The duration of this warranty is twelve 12 months from date of purchase and any claim for breach of warranty must be brought to the Company s attention within such twelve 12 month period and the Receiver must be returned for action on any such claim within twelve 12 months from the date of purchase Within a reasonable period of time after a claim the Company will correct any failure of the Radio to conform to specifications or any defect in materials or workmanship or replace the Radio or at its option provide a full refund of the purchase price A repaired or replaced product is warranted for 90 days fr
8. frequency of the receiver T 30 C to 100 C Displays the temperature inside of enclosure The STATE command without Parameter Name indicates all values Region 1 Tx 915000000 Rx 915000000 T 46 00 4 5 3 IC The IC command prints string IC 3504A FH915 800 28 www arwestcom com Command Line Interface Identification and Diagnostics Commands FCC ID 4 5 4 FCC ID The FCC ID command prints string FCC ID WJ4FH915 00 4 5 5 GTX The GTX command allows get from port the Number of transmitted bytes GTX Parameters List Parameter List Short Description 0 0 Disable send to port the Number of the transmitted bytes a default setting 1 1 Enable send to port the Number of the transmitted bytes 4 5 6 RSS The RSS command send to port the string 00 0031 85 7 Where 0031 the received Packets Number 00 the received Packets Number with bad Checksum 85 7 RSSI dBm calculated along the last Packet After reading both the received Packets Number and the received Packets Number with bad Checksum are cleaned 4 5 7 RSSI The RSSI command send to port RSSI dBm calculated along the last Packet 4 5 8 RSSM Modem stores the last RSSI values for each particular frequency on which a subpackage was received An array of the last RSSI for 128 possible frequencies can be read by command rssmin 4 5 9 RSSC The command RSSC clears particular RSSI values obta
9. interface CLD or through the configuration and maintenance application software running on PC ModemVU The diagnostic feature of the FH915 system provides the information to monitor and maintain user s communications link The output transmit power receive signal strength RSSI antenna feedline condition and data decode performance are transmitted online without application interruption The product is designed for maximum performance and reliability even in the harshest environments Plug and play at its best robust withstanding the most adverse of conditions 1 2 Operating at Spread Spectrum Band The Spread Spectrum SSR technique in which a signal is transmitted on a bandwidth considerably larger than the frequency content of the original information Spread spectrum telecommunications is a signal structuring technique that employs direct sequence frequency hopping or a hybrid of these which can be used for multiple access and or multiple functions This technique decreases the potential interference to other receivers while achieving privacy Spread spectrum generally makes use of a sequential noise like signal structure to spread the normally narrowband information signal over a relatively wideband radio band of frequencies The receiver correlates the received signals to retrieve the original information signal 12 www arwestcom com Product Features Modulation Technique Management Tools 1 3 Modulation Technique
10. or user supplied must provide DC power of 4 0V 5 DC The standalone unit s RF interface is a 50 ohm impedance matched standard MMCX connector as required by regulation 2 1 3 Power Consumption Power consumption of the Spread Spectrum radio modem at continuous transmission mode with 1W output power level is less than 4500mW refer to Table 2 1 for details Table 2 1 Power Consumption Operating Mode Description Consumption Maximum for continuous transmission with 1W output power level lt 4500 mW Maximum for Rx Full Operation Mode lt 2000 mW Average for Operation Mode with 30 Transmission duty cycle lt 2000 mW Average for Operation Mode with 50 Transmission duty cycle lt 3000 mW Sleep Mode 300 mW Standby Mode ordered by SLEEP input pin 500 uW I The supply voltage pins 15 and 16 in user interface connector must be 3 6 to 4 2VDC to provide RF output power gt 500mW licensed operation mode www arwestcom com 15 2 1 4 Antennas Antenna type depends on the site requirements and may be directional or omni directional Note that to support 8 miles distance range between Base station and FH915 unit an antenna mast should elevate the base antenna a minimum of 20 feet above the average level of the terrain www arwestcom com Chapter 3 CONNECTION 3 1 FH915 connection The FH915 connected directly to Evaluation Kit p n 99 571010 01 by its 16 Lead Header Connector
11. 0 RF output Power in dBm SCRAM 0 No Scrambling 1 Scrambling with Pseudo Random Sequence Generator a default setting 2 Scrambling with User defined SEED SCR 001 511 User defined decimal SEED SPACE 0 25 0 kHz Channel Spacing a default setting 1 12 5 kHz Channel Spacing 2 6 25 kHz Channel Spacing www arwestcom com 21 Command Line Interface Commands MAP F Parameter Name Parameter List PMP 0 Any transmits any receives At the receiver side neither the source nor the recipient is validated If parameter PMP 0 then its value is not displayed in a linkin response a default setting 1 Any transmits to me only The receiver compares the received code DST with its code SRC If the received code DST coincides with the code SRC of the receiver the received data are distributed to the port If the received code DST is not coincide with the code SRC of the receiver the received data to the port are not provided 2 Certified Base transmits to any The receiver compares the received code SRC and code KNW If the received code SRC coincides with the code KNW stored in the configuration file of the receiver the received data are distributed to the port If the received code SRC is not coincide with the code KNW then the received data to the port are not provided 3 Certified Base transmits to me only The receiver compares the receive
12. 2013 All rights reserved No unauthorized duplication
13. 43 43 The receiver sees the received data as Command 44 44 The receiver sees the received data as Data a default setting The WHT command without parameter prints WHT parameter 4 2 14 SRC The SRC command defines address of data the data source code By defaults SRC coincides with the last three symbols of the transmitter SN but can be reprogrammed SRC Parameters List Parameter List Short Description XXX XXX the data source code three hex symbols The SRC command without parameter prints SRC code 4 2 15 DST The DST command defines destination address of data Destination address corresponding to the source code of the recipient DST Parameters List Parameter List Short Description XXX XXX the data destination code three hex symbols The DST command without parameter prints DST code 4 2 16 KNW The KNW command defines the code of the certified data source www arwestcom com 25 Command Line Interface Serial Interfacing Commands PORT KNW Parameters List Parameter List Short Description XXX XXX the certified data source three hex symbols The KNW command without parameter prints KNW code 4 3 Serial Interfacing Commands 4 3 1 PORT The PORT is an object that responsible for data port interface configurations like Bit Rate Flow Control etc DPORT Parameter Name Parameters List
14. AL SALE OF GOODS IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING DIRECTLY OR INDIRECTLY OUT OF THE OWNERSHIP USE OR OPERATION OF THE RADIO REGARDLESS OF WHETHER SUCH DAMAGES ARE PREDICATED OR BASED UPON BREACH OF WARRANTY BREACH OF CONTRACT NEGLIGENCE STRICT TORT OR ANY OTHER LEGAL THEORY SUCH DAMAGES INCLUDE BUT ARE NOT LIMITED TO LOSS OF PROFITS LOSS OF SAVINGS OR REVENUE LOSS OF USE OF THE RADIO OR ANY ASSOCIATED EQUIPMENT COST OF CAPITAL COST OF ANY SUBSTITUTE EQUIPMENT FACILITIES OR SERVICES THE CLAIMS 1 The warranty against defects in ArWest adapter antenna battery charger or cable is 90 days www arwestcom com 43 Warranty Terms OF THIRD PARTIES INCLUDING CUSTOMERS AND INJURY TO PROPERTY THIS LIMITATION DOES NOT APPLY TO CLAIMS FOR PERSONAL INJURY SOME STATES DO NOT ALLOW LIMITS ON WARRANTIES OR ON REMEDIES FOR BREACH IN CERTAIN TRANSACTIONS IN SUCH STATES THE LIMITS IN THIS PARAGRAPH AND THE PRECEDING PARAGRAPH MAY NOT APPLY No employee of the Company or any other party is authorized to make any warranty in addition to those made in this document This warranty allocates the risks of product failure between the Company and the buyer This allocation is recognized by both parties and is reflected in the price of the goods The buyer acknowledges that it has read this warranty understands it and is bound by its terms This limited warranty is governed b
15. EER eee RE Lele he bl phe Gea oes 16 Chapter 3 Connection iaia A Ei ea ea ie wee ae es 17 3 1 FH915 Conec on di get ee a es Be Mowe Bae Sa o ES as 17 3 2 Antenna connection seen Eq Era RS PR i te mn 17 3 3 Power CONNECTION La es ia han i a Dar e AEM A ee BEALE se Qa eed ua 18 3 4 Serial RS 232 connection o eu eva ua eina desa aa ea ae esa LL La 18 Chapter 4 Command Line Interface 00 cee eee eee 19 4 1 Command Line Interface Convention 00 cece eee eee 19 4 1 1 Software Switching to Maintenance Mode u e 20 4 1 2 Switching to Data Mode cnn eens 21 42 COMMANAS s 3 3 5 te Ec bas as Biden 21 ADA LINK 4 0122 222 he ce PP RN A a fra a Dine elaine at 21 422 MAP Freses eye re eh ses sr eee Busen De 22 www arwestcom com 42 3 MAP FIX it das nid es deed Se din 22 4 2 4 MAP Fddddddddd mo esc ee nee en ie 22 4 2 5 MAP FTX ddddddddd 2 42 2 2 22 ADO RGN tiet Been AAA eee aed bie 22 ADT TREC it camions vane e bok calenta casades gated leek festa ea 23 ALS SRT ies cet el td BAW ees Aha da he de 23 42 0 DERE oye pig pe aes en Pi Saas Steen ee 24 AD VO DENG a ies ES OU DES pe 24 42 11 DSRV A Es oho wee shih eae Gale dela i pegats eee d el Pel te a 24 4212 EBT i nd thea beak paths pie cat bd ani dieta dobles tas 24 42 13 WELL 2 2232 hie odds Bl hel Sd pets ee A Bale bee Tea Vega fie duem Pawn ie 25 A DAA SRC 6 Oe ERC ee PEE echt Pbk eee eh e
16. OM THE FURNISHING PERFORMANCE OR USE OF THIS MATERIAL OR THE FH915 SUCH DISCLAIMED DAMAGES INCLUDE BUT ARE NOT LIMITED TO LOSS OF TIME LOSS OR DESTRUCTION OF DATA LOSS OF PROFIT SAVINGS OR REVENUE OR LOSS OF THE PRODUCT S USE IN ADDITION ARWEST COMMUNICATIONS IS NOT RESPONSIBLE OR LIABLE FOR DAMAGES OR COSTS INCURRED IN CONNECTION WITH OBTAINING SUBSTITUTE PRODUCTS OR SOFTWARE CLAIMS BY OTHERS INCONVENIENCE OR ANY OTHER COSTS IN ANY EVENT ARWEST COMMUNICATIONS SHALL HAVE NO LIABILITY FOR DAMAGES OR OTHERWISE TO YOU OR ANY OTHER PERSON OR ENTITY IN EXCESS OF THE PURCHASE PRICE FOR THE FH915 www arwestcom com 7 Preface Terms and Conditions LICENSE AGREEMENT Use of any computer programs or software supplied by ArWest Communications or downloaded from a ArWest Communications website the Software in connection with the FH915 constitutes acceptance of these Terms and Conditions in this Manual and an agreement to abide by these Terms and Conditions The user is granted a personal non exclusive non transferable license to use such Software under the terms stated herein and in any case only with a single FH915 or single computer You may not assign or transfer the Software or this license without the express written consent of ArWest Communications This license is effective until terminated You may terminate the license at any time by destroying the Software and Manual ArWest Communications may terminate the license if you fail to
17. Spread Spectrum signals translates into range for Spread Spectrum communications The system s range will greatly depend on the local conditions Topography local communications and even meteorological conditions play a major role in the possible range of communications www arwestcom com 39 Spread Spectrum Radio Usage 40 www arwestcom com Appendix C SAFETY WARNINGS Read these instructions Keep these instructions Heed all warnings Follow all instructions Clean only with a damp cloth Do not block any of the ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus or has been dropped Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids shall be placed on the apparatus www arwestcom com 41 Safety Warnings General Warnings C 1 General Warnings FH915 is a wireless
18. ata mode i e transmits data received from DTE over the air including the just received unexpected data and forwards data received over the air to DTE 4 1 2 Switching to Data Mode e DTE sends the CLI command DATAMODE lt CR gt or DATAMODE lt LF gt to the unit Note Command DATAMODE lt CR gt lt LF gt will be accepted as command DATAMODE lt CR gt and Data Byte 0x0A e The data received over the air goes from buffer to DTE If you need clear the buffer before going to datamode use the CLI command DATAMOD lt LF gt e Unit immediately goes to datamode so that the DTE can start sending data If no valid CLI commands received from DTE within 1 minute the unit will automatically switch back to data mode Note The data received over the air could be lost due to Rx buffer overflow if the unit stays in Maintenance mode long time 4 2 Commands 4 2 1 LINK The LINK command is responsible for configuring radio s operation mode LINK Parameter Name Parameters List 1 2 LINK commands are as common so specific for two bands 902 928 MHz band and 868 870 MHz band Parameter Name Parameter List FEC 0 Disable Forward Error Correction a default setting 1 Enable Forward Error Correction FHOP 0 9 Frequency Hoping Pattern numbers for USA 10 19 Frequency Hoping Pattern numbers for Australia For EU parameter FHOP not applied MOD 5 GMSK PWRB 15 3
19. cluding the Software license warranty and limitation of liability SAFETY Improper use of the FH915 can lead to injury to persons or property and or malfunction of the product The FH915 should only be repaired by authorized ArWest Communications warranty service centers Users should review and heed the safety warnings in Appendix C on page 31 MISCELLANEOUS The above Terms and Conditions may be amended modified superseded or canceled at any time by ArWest Communications The above Terms and Conditions will be governed by and construed in accordance with the laws of the State of California without reference to conflict of laws 8 www arwestcom com Preface Regulatory Information FCC Class B Compliance Regulatory Information The following sections provide information on this product s compliance with government regulations FCC Class B Compliance This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation This equipment has been tested 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 residential installations This equipment generates uses and can radiate radio f
20. cy Stability 1 5 ppm initial stability over temp with 3 0 ppm aging year Max Frequency Error 1 0 kHz at normal test conditions 1 5 kHz under extreme test conditions A 1 3 Modem Figure A 1 Modem Specifications Component Deiails Interface DSP UART serial port Interface Connector 16 lead Connector Data Speed of Serial Interface 9600 115200 bps Data Rate of Radio Interface 8000 bps GMSK USA Australia 16000 bps GMSK 32000 bps GMSK 64000 bps GMSK Data Rate Radio Interface 9600 bps GMSR 25 kHz CS Data Rate Radio Interface 4800 bps GMSK 12 5 kHz Channel Spacing Forward Error Correction FEC Convolutional code Data scrambling Yes A 1 4 Compliance Component Deiails FCC FCC Part 15 247 ETSI EN 300 220 1 EN 301 489 1 www arwestcom com A 1 5 General Technical Specifications Technical Specifications General Component Details Input Voltage 4 0 V 590 Power Consumption average 3 VV transmit with 50 duty cycle 1 W TPO 1 VV receive mode Operation Temperature Storage Temperature 40 C 60 C 40 C 80 C Dimensions L 80 mm x W 46 5 mm x H 7 6 9 5 mm Weight 43g Features e DSP Modem Zero IF Technologies 902 928 MHz USA 915 928 MHz Australia 868 870 MHz EU Frequency Ranges Up to 115200 bps Serial Interface Data Rate Embedded
21. d codes code DST with its code SRC and the code SRC with the code KNW If these codes match the received data are distributed to the port REP 0 Repeater mode is disabled If parameter REP 0 then its value is not displayed in a linkin response a default setting 1 Repeater mode is enabled Modem retransmits the received data The LINK command without Parameter Name indicates all values 4 2 2 MAP F The MAP F command prints the initial frequency of the receiver 915000000 4 2 3 MAP FTX The MAP FTX command prints the initial frequency of the transmitter 915000000 4 2 4 MAP Fddddddddd The MAP Fddddddddd command sets the initial frequency of the receiver For example ddddddddd 912000000 sets the initial frequency 912000000 Hz 4 2 5 MAP FTX ddddddddd The MAP FTX ddddddddd command sets the initial frequency of the receiver For example ddddddddd 924000000 sets the initial frequency 924000000 Hz 4 2 6 RGN The RGN command is also responsible for configuring radio s operation mode 22 www arwestcom com Command Line Interface Commands TRFC RGN Parameters List Parameter List Short Description 0 Sets EUR region 1 Sets USA region a default setting 2 Sets AUS region The RGN command without parameter prints the Region number 4 2 7 TRFC The TRFC command is also responsible for configuring radio s operation mode TREC Parameters List Paramet
22. d range 0x04 The command is not valid for specific radio model 0x05 Unspecified Error 4 1 1 Software Switching to Maintenance Mode To switch to Maintenance mode the special byte sequences with special meanings are used e Escape Sequence with 20 ms guard time before and after the command characters e Escape Acknowledge 00 lt CR gt lt LF gt Happy Flow 1 In data mode the unit starts looking for the Escape sequence if there is no data from DTE for more than 20 ms Start Guard Time 2 If the unit detects the Escape Sequence e The transmitter continues sending over the air the data received from DTE before Escape Sequence e The Receiver immediately stops forwarding to DTE the data received over the air and buffers it instead 3 The radio unit waits for 20 ms and then sends Escape Acknowledge to DTE if there is no data from DTE during 20 ms of Stop Guard Time 4 The unit goes to Maintenance mode and discards Escape Sequence from input buffer The modem is immediately ready to receive commands At the same time it continues buffering the data received over the air since step 2 Escape Sequence in Data During its waiting in step 3 the unit receives data from DTE e The unit sends buffered Escape Sequence from DTE to the air 20 www arwestcom com Command Line Interface Commands Switching to Data Mode e The unit sends all buffered data received from the air since step 2 to DTE and stays in d
23. ed serial data Output 4 JDPORT S DTR or DP Data Terminal TTL Input Control line can be used as a backup method MP Ready for entering Command mode 0V Maintenance Mode 3 3V Data Mode An internal 100K pull up enables Data Mode if this signal is left unconnected Maintenance Mode is also accessible by transmitting an escape sequence www arwestcom com 37 Technical Specifications External Connectors Main Connector PIN Signal Designator Signal name Description VO Comments 5 DPORTI CTS Clear to Send TTL Output Used to control transmit flow from the user to the radio OV Transmit buffer not full continue transmitting 3 3V Transmit buffer full stop transmitting 6 TTLI SLEEP Sleeps wakes radio Receive only TTL Input In sleep mode all radio functions are disabled consuming less than 50uA An internal 10K pull down wakes up the radio if this signal is left unconnected At wake up any user programmed configuration settings are refreshed from flash memory clearing any temporary settings that may have been set 3 3V Sleep Radio 0V Wake Radio As an option could be used as TTL Input Line 1 7 DPORT3 MDM_GRN Data Carrier Detect TTL Output Used by remotes to indicate that the remote has successfully acquired the signal from base station OV 1 Carrier detected synchronized 3 3V 0 No carrier detec
24. er List Short Description 0 0 Disable Packet repeating 1 1 Enable Packet repeating a default setting 2 2 Transparent mode If the TRFC 1 each Data Packet is transmitted twice first time on the current time and frequency second time on the next time and frequency position If TRFC 2 Transparent mode On two modems implement a full duplex duplex transmission mode in which data transfer maintained simultaneously with the reception of data 4 2 8 LSRT The LSRT command is specific for USA and AUS region It changes Link Simbol Rate LSRT Parameters List Parameter List Short Description 0 64000 kHz a default setting 1 32000 kHz 2 16000 kHz 3 8000 kHz The LSRT command without Parameter prints Link Symbol Rate parameter www arwestcom com 23 Command Line Interface Commands DCRC 4 2 9 DCRC The DCRC Data CRC command is manage the output of the received data to the port DCRC Parameters List Parameter List Short Description 0 0 received data are distributed to the port regardless of the received data CRC a default setting 1 1 data are distributed to the port only if the CRC is correct The DCRC command without Parameter prints DCRC parameter 4 2 10 DLNG The DLNG Data Subpackage Length command enables the validation of the receipted parameter length of subpackage DLNG Parameters List Param
25. eter List Short Description 0 0 validation of the receipted parameter length subpackage is not used a default setting 1 1 validation of the parameter is used The DLNG command without parameter prints DLNG parameter 4 2 11 DSRV The DSRV Data Service command allows the transmitter to control the tuning of the receiver When DSRV 1 the receiver settings FEC SCRAM TRFC transmitted from the transmitter to the receiver through the air DSRV Parameters List Parameter List Short Description 0 0 the receiver s parameters are set from the configuration file a default setting 1 1 FEC SCRAM TRFC are set from service data passed to the receiver through the air The DSRV command without parameter prints DSRV parameter 4 2 12 LBT The LBT Listen Before Talk command allows to verify the channel occupancy before subpackage transmitting If the channel was occupied at the previous slot the current slot is not used for data transmission 24 www arwestcom com Command Line Interface Commands WHT LBT Parameters List Parameter List Short Description 0 0 Listen Before Talk mode is turned off 1 1 Listen Before Talk mode is enabled a default setting The LBT command without parameter prints LBT parameter 4 2 13 WHT The WHT command defines type of data WHIT Parameters List Parameter List Short Description
26. iguration and monitoring software application will provide the following benefits 1 Easy user s interface for system configuration and monitoring using well developed CLI 2 An ability to monitor status alarms and radio performance through the CLI 3 Software upgrades and improvements can be downloaded from ModemVU to the units connected with PC PDA 1 3 2 Security The system provides wireless media access protection as well as data scrambling The following are its key features and benefits www arwestcom com 13 Product Features Modulation Technique Security 1 The Key Sequence generated by Pseudo random generator scrambles the fully formatted frame including Frame s CRC This provides the wireless media access protection 2 User selectable Frequency Hopping Pattern provides another level of the wireless media access protection At the same time it allows operators to increase the number of links deployed in the same location 14 www arwestcom com Chapter 2 GENERAL DESCRIPTION 2 1 Physical Interfaces 2 1 1 Serial Data Interface The serial asynchronous interface allows connection to external serial devices It is shared between user data and unit s command status information All commonly supported baud rates parity and bit configurations are available up to 115 2 kbps 2 1 2 Power Interface The power interface allows connection to an unregulated DC power source The DC power source third party
27. in this Manual is the intellectual property of and copyrighted material of ArWest Communications All rights are reserved You may not use access copy store display create derivative works of sell modify publish distribute or allow any third party access to any graphics content information or data in this Manual without ArWest Communications express written consent and may only use such information for the care and operation of your FH915 The information and data in this Manual are a valuable asset of ArWest Communications and are developed by the expenditure of considerable work time and money and are the result of original selection coordination and arrangement by ArWest Communications TRADEMARKS FH915 ArWest Communications are trademarks or registered trademarks of ArWest Communications Windows is a registered trademark of Microsoft Corporation Product and company names mentioned herein may be trademarks of their respective owners DISCLAIMER OF WARRANTY EXCEPT FOR ANY WARRANTIES IN THIS MANUAL OR A WARRANTY CARD ACCOMPANYING THE PRODUCT THIS MANUAL AND THE FH915 ARE PROVIDED AS IS THERE ARE NO OTHER WARRANTIES ARWEST COMMUNICATIONS DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE OR PURPOSE ARWEST COMMUNICATIONS AND ITS DISTRIBUTORS SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FR
28. ined by using the command RSSM to default value 140 7 dBm www arwestcom com 29 Command Line Interface Modem protection from interference RNSS 4 5 10 RNSS The command RNSS prints last Noise Strength measured between Data Sabpackages 4 5 11 NSCN The command NSCN allows to get the power of noise and interference for 128 frequencies from 902200000 to 927600000 NSCN Parameters List Parameter List Short Description d d threshold dB 4 5 12 SCAN The command SCAN allows to get the power of noise and interference for defined range of frequency with defined step SCAN Parameters List Parameter List Short Description ddddddddd DDDDDDDDD sssss ddddddddd Begin frequency Hz DDDDDDDDD End frequency Hz sssss step Hz 4 5 13 SCNS The command SCNS stop scanning 4 6 Modem protection from interference If interference contains a big power at some frequency such frequency unwanted frequency can be excluded from the use To eliminate unwanted frequencies they should be placed to list and saved in configuration file 4 6 1 NLST The NLST command prints the list of unwanted frequencies By default the list is empty 4 6 2 NADD The NADD command adds some frequency to the list of unwanted frequencies The added value of the frequency is rounded to the nearest used for frequency hopping 30 www arwestcom com Command Line Interface M
29. ion After BOOT command all configuration parameters will be default 4 4 5 XMOD IMAGE The XMOD IMAGE command in Maintains Mode activates X modem protocol to download the Modem part of the Firmware Image Use this command with one delimiter XMOD IMAGE lt CR gt or Command XMOD IMAGE lt LF gt Note Command XMOD IMAGE lt CR gt lt LF gt will be accepted as command XMOD IMAGE lt CR gt and byte of Firmware Image Ox0A 4 5 Identification and Diagnostics Commands 4 5 1 INFO The INFO command is used to retrieve the FH915 Radio ID along with its Hardware version the loaded real time software version revision and BootLoader s version www arwestcom com 27 Command Line Interface Identification and Diagnostics Commands STATE INFO Parameter Name Parameter Name Short Description ID Product ID SN Serial Number SN HW 3 hardware revision FW 2 2 30 firmware version BL 4 03 BootLoader Version The INFO command without Parameter Name indicates all values S N 30196 Hardware 3 4 5 2 STATE FH915 Land Mobile Radio Javad GNSS Product ID 41 Firmware 2 2 32 BootLoader 4 03 The STATE command is used to check the state of the wireless link STATE Parameter Name Parameter Name Short Description Region 0 EU 1 USA 2 Australia Tx Displays the initial frequency of the transmitter Rx Displays the initial
30. k SD eats SN eee SS 25 4 215 ST rar SG da We aot eden OE a eA ene teed 25 MD AORN snes Ghee wie pes nies Seis ie nn ia een ala gen 25 4 3 Serial Interfacing Commands 0 eee eect eee eens 26 43 1 PORT i iii de doped aaa eee ii Gee Rader estes 26 4 4 Special Commands un 2 bln des ond ded nues ner nn 26 4 4 1 BOOT 322 Ses cag RI 26 AA DS A mee eC eR a SEM se A 26 AABOSAN Bisa sc aeg hte dees desa dl anne 27 4 44 CEG2DELT Les HES Gas BES Bas a Ei ee 27 4 45 XMOD IMAGE ni sis ta nett A e a ee ed es Een ae 27 4 5 Identification and Diagnostics Commands o uv eu ee eee 27 AAN FO Sate tates Sins Poe Wan heel SS SE dal E at ee 27 AS 2 SPATE 0 2 2 2 22 Oe He En oa a Ban ed A in A 28 AS BN ts Gi ada da bie Rs uk 28 4 5 4 FCC ID 222 22 aie droid aa ae ae Ba a ee 29 433 6 IT a na ea raue Se Din DER Ehren ace 29 4 DO a ek GS Sea Sa Se ee a due ea Sa 29 45 1 RSS Litres A ee ae er sen E Bee 29 4 538 RSSM un a um see era nase an 29 40595 RSSG naeh pa duro dee DE NN 29 AS AOS RNS S eps re oa Gi P ESE BE ende 30 4 5 11 NSEN 2 334034 sob Beng oe eg Sol bia See iii dec esa ped are 30 45 12 SCAN a ee Coen eee Rae Rote OS EES o a do de 30 ADB SENS rn oie wea kane Conan re ara Da Pe ee e a 30 4 6 Modem protection from interference 0 0 0 cece eee cece ee ee 30 AOL NES usa imme peres Great Pin Dahl 30 4 6 2 NADD a 2a dis A er pred EN ae ies 30 4 6 3 NAPL cc 2222 2 Se A te ee ees ee a 31 FGA NDED soci e
31. nded for SCADA outdoor telemetry applications and transmission receiving of differential corrections and additional information by terrestrial radio channels between two GNSS receivers The Spread Spectrum module provides half duplex communication with transmitter output power of 1 VV 30 dBm in the frequency band 902 928 MHz z In 868 870 MHz band module provides half duplex communication with transmitter output power up to 0 5W 27 dBm with channel spacing 25 0 12 5 kHz It supports GMSK modulation method A 1 Technical Specifications A 1 1 Radio Receiver Table A 1 Radio Transceiver Specifications Parameter Details Frequency Range 902 928 MHz USA 915 928 MHz Australia 868 870 MHz EU with 25 12 5 kHz CS Link Rate symbols second 8000 16000 32000 64000 USA Australia 4800 9600 EU Carrier Frequency Stability 1 ppm Modulation GMSK Communication Mode Half duplex simplex Receiver Sensitivity for GMSK BER 1x 10 4 104 dBm for 64 kHz USA AUS 110 dBm for 25 kHz CS EUR 112 dBm for 12 5 kHz CS EUR Receiver Dynamic Range 119 to 10 dBm A 1 2 Radio Transmitter Table A 2 Transmitter Specifications Parameter Details www arwestcom com 33 Output Power USA AUS EUR Output Power Control Accuracy 15 dBm to 30 dBm in 1 dB steps 32mW to 1W 7 dBm up to 27 dBm in 1 dB steps 5mW to 0 5W 1 5 dB at normal test conditions Carrier Frequen
32. ne EAA ls 31 www arwestcom com Appendix A Technical Specifications 33 A 1 Technical Specifications u e usa a a ea ena a E eL 33 A Li Es Radio Receiver ur Diana id qai ts Bed en ay Ried Se bee ale 33 A 1 2 Radio Trans mit ter ies da eat Deal 33 AN Modemi A Ed AE EC ES SS US ES 34 AVA Compliance alii es o a BAe RE Re da 34 ALa General 225 a RASES ee sei Oe pe ee is 35 A 1 6 Mechanical Properties For End product 4 4 ee eee eee 36 A27 EXtermal Connectors sea rei deci peti ea cada Magi ad ewe za 37 A 2 1 Antenna Connectors 4 25 24 3568 a a ek os 37 Av2 2 Main Connectors A wide eG cee We hare Toei canoe Es 37 Appendix B Spread Spectrum Radio Usage 39 Appendix C Safety Warnings 200 cee eee 41 E 1 General Warnings in ai Vay tt as 42 Appendix D Warranty Terms 2 2 0 2 0c eee eee 43 www arwestcom com www arwestcom com PREFACE Thank you for purchasing this product The materials available in this Manual the Manual have been prepared by ArWest Communications ArWest Communications for owners of ArWest Communications products It is designed to assist owners with the use of the FH915 and its use is subject to these terms and conditions the Terms and Conditions Note Please read these Terms and Conditions carefully Terms and Conditions COPYRIGHT All information contained
33. negative consequences for the www arwestcom com 9 Preface Technical Assistance Canadian Emissions Labeling Requirements environment and human health which could otherwise be caused by inappropriate waste handling of this product For more detailed information about the take back and recycling of this product please contact your supplier where you purchased the product or consult Technical Assistance If you have a problem and cannot find the information you need in the product documentation contact your local dealer Alternatively request technical support using the ArWest Communications World Wide Web site at www arwestcom com Return Material Authorization Initially the customer contacts support to report a problem Please refer to support support arwestcom com If support determines the problem cannot be resolved over e mail Internet it will authorize the return of the unit for repair or replacement depending on the nature of the problem 10 www arwestcom com Chapter 1 PRODUCT FEATURES 1 1 Introduction FH915 radio transceiver is designed as universal license free modem It uses 902 928 MHz ISM industrial scientific and medical license free USA Australia band frequency hopping transmission techniques for excellent reliability in noisy plant environments and European CEPT license free 868 870 MHz band allocated for narrow band telemetry alarms and data transfer applications Thanks to its small size and mul
34. odem protection from interference NAPL NADD Parameters List Parameter List Short Description ddddddddd ddddddddd frequency value Hz Example The command nadd 915666777 n add to list frequency 915600000 Hz Its number equal 0x43 The command nadd 918111222 n add to list frequency 918200000 Hz Its number equal 0x50 The NLST command prints the list 43 915600000 50 918200000 00 4 6 3 NAPL The NAPL command applies the list of unwanted frequencies and forms the frequency hopping sequence without unwanted frequencies The list of unwanted frequencies from configuration file will be applied automatically by Reset or Power On of the modem To save the list in the configuration file you must issue the command save n 4 6 4 NDEL The NDEL command deletes frequency from the list of unwanted frequencies NDEL Parameters List Parameter List Short Description HH HH hex frequency number Example The command ndel 43 n deletes frequency 915600000 Hz from the list The XMOD IMAGE command in Data Route Mode activates X modem protocol to download the Data Route part of the Firmware Image www arwestcom com 31 Command Line Interface Modem protection from interference NDEL 32 www arwestcom com Appendix A TECHNICAL SPECIFICATIONS FH915 DSP based integrated Spread Spectrum Modem is the single board OEM wireless transceiver inte
35. om the date of return shipment to the buyer or for the balance of the original warranty period whichever is longer These remedies are the buyer s exclusive remedies for breach of warranty To obtain warranty service the buyer must return the Radio postage paid with proof of the date of original purchase and the buyer s return address to the Company or an authorized service center The Company will not be responsible for any loss or damage to the product incurred while it is in transit or is being shipped for repair It is the buyer s responsibility to arrange for insurance if the buyer so desires The Company does not warrant a any product components or parts not manufactured by the Company b defects caused by failure to provide a suitable installation environment for the Radio c damage caused by disasters such as fire flood wind and lightning e damage caused by unauthorized attachments or modification f damage during shipment g any other abuse or misuse by the buyer h that the Radio will be free from any claim for infringement of any patent trademark copyright or other proprietary right including trade secrets THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND IF APPLICABLE IMPLIED WARRANTIES UNDER ARTICLE 35 OF THE UNITED NATIONS CONVENTION ON CONTRACTS FOR THE INTERNATION
36. onvention is implemented in FH915 Command Line Interface CLI e The Carriage Return Line Feed CR LF OXOD OXOA is a command delimiter Command delimiters CR or LF or CR LF are valid Preferable delimiter LF e The Carriage Return Line Feed CR LF 0x0D 0x0A is a reply delimiter followed by the CLI gt prompt if Echo option is On e The Carriage Return Line Feed CR LF OXOD OXOA is a reply delimiter if Echo option is Off default option e The 2 digit number followed by in the unit s reply indicates the error code refer to Table 4 1 for description if Echo Off is selected e A successfully performed command is replied by 00 code if Echo Off is selected www arwestcom com 19 Command Line Interface Command Line Interface Convention Software Switching to Maintenance Mode e A command with the certain Parameter Name and blank Parameter List displays the current settings for a given parameter e To set the mode ordered by CLI commands as permanent User Setting the setting automatically selected for the boot up unit the SAVE command must be asserted e orders to show the help information for the given command e Commands are not key sensitive small none capital characters can be used to enter CLI commands Table 4 1 Command Line Interface Error Codes Error Code Short Description 0x01 Command Syntax Error 0x02 The parameter has a format error 0x03 The parameter is out of allowe
37. ot used 2 RXD I Receive Data 3 TXD O Transmit Data 4 DTR O Data Terminal Ready 5 GND Signal Ground 6 DSR I Data Set Ready 7 RTS O Request To Send 8 CTS I Clear To Send 9 Not used Please refer to particular external device Serial port specification to select and use right Serial cable for proper connection 18 www arwestcom com Chapter 4 COMMAND LINE INTERFACE The built in user friendly Command Line Interface CLD allows user to perform a full configuration of the unit and read the statistics and alarm status It is the most powerful tool to configure the unit It makes changes to all possible settings that system will not be able to determine automatically The CLI commands allow user to configure and reconfigure the unit s settings The user configuration parameters that could be changed through the CLI are e Data Port Settings Baud Rate Data Bits 8 7 Stop Bits 1 2 Parity Odd Even None Flow control None or RTS CTS e Radio Operation Modes Note The unit s configuration that is set or modified through the CLI will be lost after unit s reboot unless the saving operation is used to store a new setting in the unit s configuration file The CLI commands also provide filing operations which include e Downloading Software Images e Saving into the configuration files the configuration parameters modified through the CLI 4 1 Command Line Interface Convention The following c
38. requency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television equipment reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by on or more of the following measures e Reorient or relocate the receiving antenna e Move the equipment away from the receiver e Plug the equipment into an outlet on a circuit different from that to which the receiver is powered e Consult the dealer or an experienced radio television technician for additional suggestions Caution Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void your authority to operate such equipment Canadian Emissions Labeling Requirements This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada WEEE Directive The following information is for EU member states only The use of the symbol indicates that this product may not be treated as household waste By ensuring this product is disposed of correctly you will help prevent potential
39. ted not synchronized 8 DPORT4 RTS Request to Send TTL Input Gates the flow of receive data from the radio to the user on or off An internal 10K pull down enables data receive if this signal is left unconnected In normal operation this signal should be asserted OV Receive data RxD enabled 3 3V Receive data RxD disabled 9 DPORT2 DSR Data Set Ready TTL Output Used to control transmit flow from the user to the radio OV 1 Receive buffer has data to transfer 3 3V 0 Receive buffer is empty 10 RES CONT RESCONT Reset Control TTL Input Reset the radio by shortening this pin to the ground 11 TTLO1 TTLOUTI TTL Output Line 1 TTL Output Reserve line 12 TTLO2 TTLOUT2 TTL Output Line 2 TTL Output Reserve line 13 GND GND Ground Signal and Chassis Ground 14 TTLI2 TTLIN TTL Input line TTL Input An internal 100K pull up resistor is applied 15 VCC36 PWR Power Supply External Regulated positive 4 0V DC from ext Power Supply 16 VCC36 PWR Power Supply External Regulated positive 4 0V DC from ext Power Supply 38 www arwestcom com Appendix B SPREAD SPECTRUM RADIO USAGE Many countries require a license for radio users Be sure you comply with all local laws while operating a Spread Spectrum radio The quality and strength of the
40. tiple functions the FH915 is specifically well suited for amount of applications within industrial complexes for various indoor as well as medium range applications The unmatched features of FH915 include data scrambling frequency hopping user selectable transmit output power level low power consumption sleep modes Figure 1 1 FH915 FH915 supports two separate Application Data and Maintenance modes of single UART serial port The built in software tools provide the wireless link testing unit s status and error statistics monitoring The firmware of the FH915 radio transceiver resides in a flash memory The updating of the radio transceiver programs is entirely software based The flash memory is re programmable through an UART interface The FH915 is developed for exacting customer needs and to have pin to pin compatibility with OEM radios AW400Tx AW400Rx and AW LOOTx The Spread Spectrum transceiver is also capable of receiving RF signals through a 50 Ohm impedance external antenna port The delivered product is a wireless system which includes e FH915 Spread Spectrum Radio Transceiver www arwestcom com 11 Product Features Operating at Spread Spectrum Band e ModemVU Windows based Unit Configuration and Maintenance Software Application running on a IBM PC compatible computer and connecting to the device over RS 232 interface or USB to Serial adapter The setting can be done through the built in Command Line
41. y the laws of the State of California without reference to its conflict of law provisions or the U N Convention on Contracts for the International Sale of Goods 44 www arwestcom com READER COMMENT FORM We appreciate your comments and suggestions for improving this publication I use the following ArWest product for Please circle a response for each of the statements below 1 Strongly Agree 2 Agree 3 Neutral 4 Disagree 5 Strongly Disagree The manual is well organized 1234 I can find the information I want The information in the manual is accurate I can easily understand the instructions The manual contains enough examples The examples are appropriate and helpful The layout and format are attractive and useful The illustrations are clear and helpful 2345 The manual is too long just right too short a e e na N N NN NN WY W WWW U U pS SS an Ur Ur Un Ur Un Un Please answer the following questions Which sections do you use the most What do you like best about the manual What do you like least about the manual Optional Name Company Address Telephone Fax Please mail to the ArWest local office listed on the back cover All comments and suggestions become the property of ArWest Communications www arwestcom com ARWEST 900 Rock Avenue San Jose CA 95131 USA Tel 1 408 770 1790 Fax 1 408 770 1799 www arwestcom com Copyright ArWest Communications
Download Pdf Manuals
Related Search