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1. Table B 3 The SDR OEM CF power receptacle pin configuration B 2 Serial communications Serial Port electrical interface compliance EIA TIA 232E and V 28 data rates 2400 4800 9600 19200 38400 57600 115200 230400 bps stop bits 1 Parity None Handshaking RTS CTS Table B 4 Serial communications specifications for the SDR CF B 3 CompactFlash socket CompactFlash type Type or Type II True IDE storage capacity limited only by storage device and FAT file system Table B 5 CompactFlash socket specifications for the SDR CF B 4 Mechanical Specifications SDR CF Dimensions 4 875 L x 3 50 W x 1 25 H 12 3 cm x 8 5 cm x 3 2 cm Weight without CF card approx 6 0 oz 170 grams Enclosure Material Aluminum extrusion SDR OEM CF circuit board Dimensions 4 50 L x 3 00 W x 0 60 H 11 4 cm x 7 6 cm x 1 0 cm Weight without CF card approx 3 0 oz 85 grams Table B 1 SDR CF and SDR OEM CF mechanical specifications J8 DataBridge SDR User s Manual rev 1 2 SDR CF and SDR OEM CF Specifications Notes 29
2. Set the date and time Specify a directory to record files to Specify a filename for recording Ensure that the media you are using is properly formatted and has enough free space to accommodate your data e Verify that the SDR and your device are communicating at the same speed and with the same serial data format parameters e Communicate with your serial data source connected to the device port e Set up output messages for your serial device Before you begin be sure you have the documentation available for the device you ll connect to your SDR If possible be sure you can communicate with the data source using the supplied software and or your communications software An intimate knowledge of your data source s communications standards will make connecting it to the SDR simple 11 Configuring the DataBridge SDR CF SDR CF SDR OEM CF Configuration Guide rev 1 2 TIP For detailed information about the SDR configuration menus see Chapter 4 2 1 Setting date and time The SDR features a real time clock that reports a file s last modified date and time The real time clock is preset and battery backed so setting the date and time is seldom necessary To set the time type 1 at the menu prompt Then when prompted further enter the time in 24 hour format using two digits for each of hours minutes and seconds omit the colons between each field Press any key to return to the SDR main menu For an example s
3. CAPS num Capture Print echo Figure 4 19 Specifying a filename for an ASCII file transfer in HyperTerminal 45 SDR CF SDR OEM CF Configuration Guide rev 1 2 Service and Support Service and Support 5 1 Exception Codes The following are common error codes encountered when using DataBridge SDR CF and SDR OEM CF products To determine which error has occurred watch the exception indicator on the SDR s front panel and count the number of rapid blinks Each sequence is separated by a 1 second pause in the blink pattern Exception 2 Root Directory Full A FAT16 root directory can have only 512 directory entries fewer if long filenames are used Delete files from the root directory or record to a subfolder in the root directory to overcome this limitation Exception 3 Disk Full The disk has no or almost no available space for files Delete files from the disk to ensure space is available Exception 4 Bad Boot Record Occurs when the disk is completely unformatted or formatted for FAT32 Usef ormat FS FAT from the Windows command prompt to ensure proper FAT 16 formatting 47 Service and Support SDR CF SDR OEM CF Configuration Guide rev 1 2 Exception 5 Hardware Error Usually occurs when the SDR CF cannot reset the CompactFlash card Try ejecting and reinserting the card or using a new card and contact Acumen if problem persists Exception 6 EEPROM Error Rare hardware error Contact Acume
4. Enter choice 1 2 3 4 5 6 7 0 2 Enter new filename or press ESC to cancel 9600 8 N 1 SCROLL CAPS NUM Capture Print echo Figure 2 4 Changing the current filename 2 4 Setting recording parameters The SDR s recording parameters submenu allows you to control how and when new files are created how the SDR handles a full CF card if incoming data is date time stamped and how the SDR handles a power failure To enter the Recording Parameters submenu press 6 from the main menu prompt 15 Configuring the DataBridge SDR CF SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal File Edit View Call Transfer Help De 535 0 E Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Cu nt filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 0 SIW 9600 8 N 1 SCROLL CAPS _NUM Capture Print echo Figure 2 5 The Recording Parameters submenu Overwrite oldest mode When overwrite is enabled the SDR will delete the oldest file on the disk whenever recording starts and the CF card has less than 1 megabyte of free disk space Use this option with scheduled file closing see below to configure the SDR as a circular buffer that contains only the most recently received data Direct to
5. and then reconfigure it for carriage return if you see no time stamps in your data 18 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Comm4 HyperTerminal x 5 x File Edit View Call Transfer Help Oils 2131 ala l Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 Q 5 Enable time stamping of incoming lines of data Y N Y Enter the ASCII code for a line end e g 10 for line feed 10 ansiw i152008 N 1 5CROL CAPS NUM Capture Print echo Figure 2 9 Configuring the time stamping for ASCII data with CR LF line ends Powering up in passthrough mode This option forces the SDR into passthrough mode as if the user had pressed 8 from the main configuration menu whenever the SDR powers up regardless of whether the SDR is recording or not When the option is enabled the user must enter to return to the configuration menu If you are unsure how to use it DO NOT enable this option This option can make your SDR appear to be broken For more information about passthrough mode see section 4 1 5 2 5 Entering messages Some data sources need to receive specific data strings or commands before the
6. LED located on the front of the SDR will blink incessantly to indicate you are operating in passthrough mode DO NOT USE THIS OPTION IF YOU ARE UNSURE WHAT IT DOES 4 4 File System Functions menu To enter the File System Functions submenu press 7 from the Configuration menu The File System Functions submenu appears see Figure 4 5 Direct to Com4 HyperTerminal File Edit View Call Transfer Help De ef 25 e Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename 1 Display current directory Select file Change current directory Delete Rename Download directory via YMode Download file as ASCII text Q Return to main menu Enter choice 1 2 3 4 5 6 7 Q Figure 4 11 The File System Functions submenu Using the File System Functions menu you can display a directory of files change filename or target directory delete and rename files and download or view files 39 Configuration Menu Reference When using menu options 4 and 5 if the specified file is not found the SDR simply returns to the File System Functions menu SDR CF SDR OEM CF Configuration Guide rev 1 2 4 4 1 Display root directory To display the current directory type 1 If the directory is not empty each file s name attributes last modified time date and file size in bytes is shown see Figure 4 12 Once the directory has been displayed press any key to return to the File System Functions menu Direct to
7. can connect two terminals DTE s without the use of modems DCE s Note that GND pins are always connected Most devices have female connectors DB9 or DB25 if they are configured for DCE operation and male connectors if they are configured for DTE operation but this is not always the case There is a simple trick for determining whether a device is DTE or DCE Connect a voltmeter s ground line to the connector s GND pin Then probe the voltage on the TD and RD pins If the TD pin voltage is small 3V lt Vin lt 3V the device is configured to receive data on the TD pin and thus is a DCE device Likewise if the RD pin voltage is small the device is receiving data on the RD pin and thus is DTE A 3 3 Handshaking Handshaking signals by the receiving device to tell the transmitter I am ready for data or I am not ready for data These signals are optional the receiver may always be ready for data or may choose to simply discard data it couldn t process A DTE device asserts the request to send RTS signal when it is ready to receive data and deasserts it when it cannot accept data Likewise a DCE device asserts clear to send CTS when it is ready to receive data The RTS and CTS signals form a handshaking pair and their use constitutes RTS CTS handshaking The data terminal ready DTR signal asserted by the DTE and the data set ready DSR signal asserted by the DCE serve simila
8. execute immediately and therefore have no associated sub menu The Configuration menu also provides feedback during recording Status fields on the right hand side of the Configuration menu indicate approximate recorded file size in bytes bytes dropped because of buffer overflow ideally zero and a telltale for the minimum free space in the buffer 120 kilobyte maximum In addition the logic states of the RTS CTS and DTR lines of the data port are displayed The DTR line is designed to source 5VDC for optionally supplying low power devices 500mA max 29 Configuration Menu Reference SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal File Edit View Call Transfer Help De 23 04 E Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Set time Set date Toggle ANSI mode ANSI is ON Toggle messages messages are Edit messages Recording parameters File system functions Enter serial passthrough mode Configure data port for attached device Enter record mode recording is Stop recording Enter choice 1 2 3 4 5 6 7 8 9 R 1 2 3 4 5 6 7 8 9 R 96008 N 1 SCROLL CAPS num Capture Print echo Figure 4 1 The DataBridge SDR CF configuration menu 4 1 1 Set Time To update the real time clock s time type 1 at the menu prompt When prompted further enter the time in 24 hour format using two digits for each of hours minutes and
9. possible data loss when an IBM MicroDrive returns from low power shutdown to avoid data loss mode when using slow storage media Most data sources transfer data in short bursts For example a device may send a 10 byte message once per second In this case the average byte rate is simply 10 bytes second and the maximum disk access time becomes 50 seconds If your maximum disk access time exceeds your media s worst case access time you can expect occasional data loss This is very rare 3 2 Configuration Port settings In some cases you may wish to choose higher or lower data rates for the configuration port For example you may need a lower speed if you wish to configure control and monitor your SDR remotely using a radio modem You may need a higher speed if you intend to download data through the serial port using YMODEM or if you simply want a snappier menu display To change the configuration port baud rate open the enclosure and use switches S1 1 1 2 and S1 3 to select a baud rate for the configuration port and switch 1 4 to enable or disable RTS CTS hardware handshaking See Table 3 1 for switch settings 26 SDR CF SDR OEM CF Configuration Guide rev 1 2 Label Switch Designator RTS CTS hardware handshaking enable 2400 bps 4800 bps 9600 bps 19200 bps 38400 bps 57600 bps 115200 bps 230400 bps RTS CTS handshake baudrateO baudrate1 baud rate 2 enable 1
10. seconds omit the colons between each field Press any key to return to the SDR CF main menu For an example see Figure 2 1 4 1 2 Set Date To update the real time clock s date type 2 at the menu prompt When prompted further enter the date in MM DD YYYY format using two digits for each for month and day and four digits for year omit the slash between each field Press any key to return to the SDR CF Configuration menu For an example see Figure 2 2 4 1 3 Toggle ANSI Mode ANSI mode provides an easy to read user interface for your SDR CF and is enabled or disabled by typing 3 from the Configuration menu Make sure you have ANSI mode enabled in your terminal software for proper display of the menus The current state of ANSI mode is indicated on the menu 4 1 4 Toggle Messages For convenience and testing all messages can be globally activated or deactivated by typing 4 from the Configuration menu Globally turning the 30 SDR CF SDR OEM CF Configuration Guide rev 1 2 messages off does not change their settings but overrides the current message parameters The current state of the messages is indicated 4 1 5 Enter Serial Passthrough Mode Serial passthrough mode provides a means for communicating with the device connected to the data port To enter passthrough mode press 8 from the main menu To return to the main menu type then wait two seconds without typing for the menu to reappear The LED on the f
11. since the computer acts as a terminal Modems and many other serial devices are configured as DCE since they are communications equipment What s the difference A DTE device s TD signal means I transmit data on this line A DCE s TD signal can be read You the DTE transmit data to me on this line A DTE s RD signal means I receive data on this signal line A DCE s RD line means You the DTE will receive the data I transmit on this signal line Sound confusing A look at a the DB9 connector pinouts and signal direction with respect to DTE e g your computer makes things a little more clear pin number signal name 25 pin 9 pin direction transmitted data TD 2 3 DTE DCE received data RD 3 2 DTE DCE request to send RTS 4 7 DTE DCE clear to send CTS 5 8 DTE DCE data terminal ready DTR 20 4 DTE DCE data set ready DSR 6 6 DTE DCE data carrier detect DCD 8 1 DTE DCE ring indicator RI 22 9 DTE DCE signal ground GND 7 5 Table A 2 Pinouts for 9 pin and 25 pin serial connectors The cable that connects DTE devices such as your computer and DCE devices such as your modem is simple It connects the TD pin to TD pin RD to RD etc A cable that connects DTE to DTE or DCE to DCE must connect the TD to RD and RD to TD This cable is referred to as a null 23 Serial Port Basics SDR CF SDR OEM CF Configuration Guide rev 1 2 modem cable because it
12. 09338 3203 W 0 000 0 0 130895 3 2 E 06 26 2007 18 34 52 PRWIZCH 22 0 26 0 26 0 26 0 26 0 26 0 26 0 26 0 26 0 24 0 2 6 0 26 0 4 06 26 2007 18 34 53 GPRMC 000240 V 4159 9561 N 09338 3203 W 0 000 0 0 130895 3 2 Ex 06 26 2007 18 34 53 PRWIZCH 22 0 26 0 26 0 26 0 26 0 26 0 26 0 26 0 26 0 24 0 2 Press any key to continue Connected 0 32 14 fansiw 115200 8 N 1 SCROLL CAPS NUM Capture Print echo Figure 4 10 An example of a file recorded with time stamping enabled 38 SDR CF SDR OEM CF Configuration Guide rev 1 2 SDR CF SDR OEM CF Configuration Guide rev 1 2 NOTE From the main menu in the Recording Parameters menu option you will be able to check the state of power up in passthrough mode on menu option 6 By selecting this option you can turn this feature on or off Configuration Menu Reference 4 3 6 Power up in passthrough mode In some unique applications the user may wish to always communicate with the data source via the configuration port using passthrough mode For example if the SDR is placed in line between a computer or microprocessor to log communications to or from each To return to the configuration menu enter via the configuration port then wait 2 seconds as you would if you had entered passthrough mode from the Configuration menu Menu option 6 turns power up in passthrough mode on and off and the menu displays the state of power up in passthrough mode The
13. 1 1 2 1 3 1 4 z ON OFF OFF OFF ON OFF OFF OFF ON OFF ON ON OFF OFF OFF ON ON OFF ON OFF ON ON ON ON ON Table 3 1 Configuration Port DIP switch settings 3 3 Lithium battery maintenance The SDR s real time clock uses a small lithium battery to maintain time when external power is unavailable The life of this battery should exceed 5 years If you find your SDR is not keeping time correctly or that the time is displayed with a question mark after it when you power up you may need to replace the battery If necessary replace the battery with a Panasonic CR2032 or equivalent making sure the positive face is in contact with the battery clip After replacing the battery be sure to reset the SDR s time and date 27 Operations SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuration Menu Reference Configuration Menu Reference You can use menu functions to manage files configure and communicate with the device attached to the data port set date and time set up output messages download data configure the storage media and control the SDR without using the record button 4 1 Main Configuration Menu The SDR s core functions are accessed from the Configuration menu see Figure 4 1 using terminal software The Configuration menu includes functions for controlling both the SDR and the attached device A number of the Configuration menu items either prompt for input or
14. 7215 Initialize with message N Send message when stopping ae Append carriage return to message Y N Y Append line feed to message Y N Y Joe008 N 1 SCROLL CAPS yum Capture Printecho Figure 2 11 Configuring message zero for output every 10 seconds and append carriage return and line feed The main configuration menu includes an option menu option 4 for globally enabling or disabling output messages Be sure output messages are enabled when using the messaging feature 21 Configuring the DataBridge SDR CF SDR CF SDR OEM CF Configuration Guide rev 1 2 TIP Messages with only a carriage return no line feed after them will appear to overwrite previous messages in your terminal software You can enable your communications software s append linefeeds to incoming carriage returns feature to see these messages properly 2 6 Testing your configuration To test your configuration disconnect your terminal from the configuration port and use a null modem adapter or cable to connect your terminal to the data port Your computer then becomes a data source Press the Record button to enter record mode The SDR s record indicator will illuminate and the output messages you entered will be displayed once or at the specified output intervals To ensure that recording is occurring type several keystrokes on the terminal or use the software s ASCII text upload feature to send a text file The SDR s
15. ACUMEN INSTRUMENTS CORPORATION DataBridge SDR CF and SDR OEM CF Configuration Guide revision 1 2 08 2007 Copyright This document is copyrighted by Acumen Instruments Corporation with all rights reserved No part of this document may be reproduced in any form without prior written consent of Acumen Instruments Corporation Copyright 1998 2007 by Acumen Instruments Corporation All rights reserved Disclaimer This manual has been thoroughly reviewed for accuracy and every effort has been made to ensure that the information is accurate and complete However different versions of this product have different features and capabilities and this manual only reflects one of those versions Therefore Acumen Instruments Corporation assumes no responsibility for errors omissions or defects in this material and shall not be liable for any damages resulting from their use The information in this document is subject to change without notice ACUMEN INSTRUMENTS CORPORATION MAKES NO WARRANTY OF ANY KIND WITH RESPECT TO THIS DOCUMENT EITHER EXPRESSED OR IMPLIED INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Table of Contents 1 Getting Started nccnuccencenenkene eee 5 1 1 OVEPVIEW sites n oa aa e i a a dr i eE e Ena at 5 1 2 Before YOu Start persireiseti ioeina aptare evia tgu ia at iaa
16. Com4 HyperTerminal File Edit View Call Transfer Help be S33 04 e Directory contents last modified lt DIR gt 0 7 lt DIR gt 017 j 01 30 filename bytes DIR created ft Press any key to continue SCROLL CAPS num Capture Printecho Figure 4 12 Displaying the root directory 4 4 2 Select file To change the filename the SDR uses to record data type 2 from the File System Functions submenu and edit the contents using the Backspace key When you are finished the specified file name appears at the top of the File System Functions submenu see Figure 4 11 In addition to recording the current filename is used in menu options 4 5 and 7 4 4 3 Change current directory You can use menu option 3 from the File System Functions submenu to change the target directory without changing filenames This is convenient for quickly changing where files are recorded without having to retype the entire filename 4 4 4 Delete current file To delete a file use menu option 7 file system functions Specify the filename to delete using menu option 2 and then use menu option 4 to delete the file 40 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuration Menu Reference 4 4 5 Rename current file To rename a file on the storage media specify its filename using menu option 2 and then press 5 When prompted enter a new name for the file 4 4 6 Download directory via Ymodem batch Menu option 6 al
17. Com4 HyperTerminal File Edit View Call Transfer Help Dae 23 28 Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Change target file Toggle overwrite oldest mode overwrite is ON Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 0 96008 N 1 SCROLL CAPS NUM ture Printecho Figure 2 6 The SDR configured as a circular buffering logger 16 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Append mode If append mode is enabled data will be recorded to the current file whenever recording starts resulting in one large file New files will only be created when the filename is modified via the configuration menus Scheduled file closing The SDR can be configured to automatically stop and restart recording based on either a time interval in seconds or a file size in bytes Direct to Com4 HyperTerminal Bile Edit View Call Transfer Help Dae S8 28 Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 Q 4 Enable scheduled file closing Y N
18. E devices drives RTS at 9 50V it is signaling the DCE to stop sending data A few devices particularly devices that communicate at low data rates or over short cables bypass the voltage conversion altogether These devices often require computer interface kits that are really no more than a level converter in a box These serial ports are often referred to as TTL RS 232 CMOS RS 232 or 5 Volt RS 232 ports and require level converters to interact with computers and other serial devices 22 DataBridge SDR User s Manual rev 1 2 SDR CF and SDR OEM CF Specifications B 1 Electrical specifications SDR CF requires a 7 30 VDC power source or a regulated 5VDC power SDR CF and SDR OEM CF Specifications source SDR OEM CF Connectors J7 and J1 are present on both the SDR CF and SDR OEM CF J1 is inaccessible on the SDR CF without removing the enclosure SDR CF SDR OEM CF 7 30 VDC 100mA SDR OEM CF circuit board 5 VDC 100mA Table B 1 DataBridge SDR CF power consumption with CompactFlash card installed B 1 5 J7 rear power receptacle pin configuration pin Function Tip 7 30 VDC ring Ground Table B 2 The SDR CF SDR OEM CF rear power receptacle pin configuration 27 SDR CF and SDR OEM CF Specifications SDR CF SDR OEM CF Configuration Guide rev 1 2 B 1 6 J1 power receptacle pin configuration pin Function 1 5 0 VDC 2 Ground
19. R Figure 2 2 Setting the SDR s date 2 2 Configuring the data port Before the SDR and your data source can communicate they must interact at the same data rate and using the same data format The SDR s data port and configuration port are by default configured to NOTE The SDR uses communicate at 9600 bps a serial data format of eight data bits no If your data source can communicate at 9600 bps also referred to as 9600 parity and one stop bit baud it may be easiest to configure it for 9600 bps For devices with a fixed 8N1 data rate you will need to set the SDR s data port baud rate to match your data source You may also wish to choose a higher data rate and hardware handshaking if your data source sends a high volume of data Hardware handshaking ensures that the SDR sends messages only when the data source is ready to accept them Likewise hardware handshaking prevents a data source from sending data when the SDR is not ready to receive it Be sure that your serial data source and the SDR use the same handshaking settings If the SDR monitors the handshaking signal but your data source does not send it the SDR will wait indefinitely for permission to transmit messages Likewise if your data source monitors the handshaking signals but the SDR doesn t send the appropriate signal the software may never transmit output data To change the baud rate and hardware handshaking for the data port type 9 and
20. SDR CF rev 8 9 Current filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 0 CAPS NuM Capture Printecho Figure 4 5 The Recording Parameters submenu From the Recording Parameters submenu you can specify a filename control how new files are created and named how the SDR deals with a full CF card whether timestamps are added to incoming data and whether the configuration port displays the menu or communicates with the data source during recording 4 3 1 Change current filename To change the filename your SDR uses to record data type 2 from the File System Functions submenu and edit the filename folder using the backspace key When you are finished the specified file name appears at the top of the File System Functions submenu see Figure 4 5 This menu option functions exactly the same as menu 1 in the File System Functions menu see below 4 3 2 Toggle overwrite oldest mode When enabled overwrite oldest mode checks the media during recording and deletes the oldest file in the current recording folder whenever the CF card s free space is less than 1 megabyte Use this option with scheduled file closing see below to configure the SDR as a continuous recording circular data buffer Menu option 2 turns overwr
21. WNS 00 eee eeeeeeeeeeeeeeeneeeeneeeeeeees 24 3 1 4 Full storage Media ccsceccsesceseenestntedgeegnedenersesederesessceestasedererneicnesice 24 3 1 5 Formatting the storage Media eee cece eeeneeeeeeenaeeeseeeeeeenaeeeeeeaas 24 321 6 Partitions osc eree dha soak Aine agen ea enero 25 3 1 7 Considerations for slow devices 0 0 eeecceeeeeeeeeeeeeeeeeenaeeeeeenaeeeenneeeeneas 25 3 2 Configuration Port settings 00 0 ee eeeeneeeeeenneeeeeeeeeeeeeeeeeeenaeeeeneeeeees 26 3 3 Lithium battery Maintenance ee eee ceeeeeeeeeneeeseetaeeeseeeeeeenaeeeeeeaas 27 4 Configuration Menu Reference ccceeeeeeeeeeeeeeeeeeeeees 29 4 1 Main Configuration M nu cc ceceeeseeeeceeceeeeeeneeeeeeneeeeeeneeeeenneeeeneas 29 42171 SetTIMG wake shies neta esta a e aa deat nasi nce 30 AV 2 SOE Dates EEEE NE E T 30 4 1 3 Toggle ANSI Mode 00 ee eeceeeesneeeeeeeeeeeeeneeeeeeaeeeseeaeeesnneeeeeenaeeeeneaaes 30 4 44 Toggle MeSSage sininen knn e a AAA EA EAE erste 30 4 1 5 Enter Serial Passthrough Mode cccceeeecceeeeseeeeeeeneeeeeeeeeeeeneeeeneaaes 31 4 1 6 Configure Data Port for Attached Device 31 4 1 7 Start Stop RECOrdiNg 0 0 etzie e Re e aa e i 31 4 2 Edit Messages Menuisier iiaiai ditia aiai 32 4 3 Recording Parameters MENU cccceeeeeeeeeeeeeeeeeeeeeeeeneeeeeeneeeeenneeeeneas 33 4 3 1 Change current filename eee cece ee enn eeeeenneeeeeeaeeesnneeeeeenaeeeeeenaes 34 4 3 2 Toggle overwrite
22. Y Close files based on file size in bytes Y N Y Enter file closing size in bytes 16777215 1048576 9600 8 N 1 SCROLL CAPS nNum Capture Print echo Figure 2 7 Configuring the SDR to create a new file after every 1 megabyte 1048576 bytes of data received 17 Configuring the DataBridge SDR CF SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal a VES file Edit View Call Transfer Help De 23 08 e Acumen Instruments Corporation DataBridge SDR CF rev 8 9 C t filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 0Q 4 Enable scheduled file closing Y N Y Close files based on file size in bytes Y N Y Enter file closing size in bytes 0 16777215 3600 Capture Print echo Figure 2 8 Configuring the SDR to create a new file every hour 3600 seconds Time stamping This option is most commonly used when logging ASCII data to add date and time to the beginning of each line of data which is useful for correlating data with other recorders Incoming data lines will be terminated with either a carriage return ASCII code 13 or a carriage return line feed ASCII code 10 If you are unsure it may be easiest to configure the SDR timestamping to trigger on a line feed
23. ain menu Enter choice 1 2 3 4 5 6 7 Q 7 Press any key to begin ASCII download use CTRL C to cancel gsooan 1 SCROLL CAPS Capture _ Print echo Figure 4 17 Downloading a file as ASCII text In HyperTerminal you can capture the ASCII text to a file by selecting Capture Text from the Transfer menu item see Figure 4 18 and then specifying a filename for the captured text see Figure 4 19 Direct to Com4 HyperTerminal Fie Edit View Call Transfer Help Acumen Ins DataBridge i 1 Display current directory Select file Change current directory Delete Rename Download directory via YModem batch Download file as ASCII text Q Return to main menu Enter choice 1 2 3 4 5 6 7 Q 7 Press any key to begin ASCII download use CTRL C to cancel Figure 4 18 Preparing to download file as ASCII text using HyperTerminal 44 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuration Menu Reference Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Display current directory Select file Change current directory _ Capture Text Delete Rename Folder File Download directory Download file as A Return to main menu Current filename C Documents and Settings Abby Kratoska Start EAE Browse Enter choice 1 2 3 4 5 6 7 0 Q 7 Press any key to begin ASCII download use CTRL C to cancel 9600 8 N 1 SCROLL sat _coreet_
24. allel data is sent 8 16 32 or even 64 bits at a time using a signal line for each bit Data that is sent without the use of a master clock is said to be asynchronous serial data Several communications standards exist for the transfer of asynchronous serial data Common PC s transfer data using the EIA RS 232C also known as V 28 or V 24 Updated versions of this standard include RS 232D and EIA TIA 232E but most literature still refers to the RS 232C or RS 232 standard Other asynchronous serial standards in common use include RS 422 RS 423 and RS 485 These standards allow higher data rates and longer cable lengths than RS 232 and are common in industrial settings A 2 Data rates The baud rate for a serial connection is the number of bits that are transmitted per second It is specified in bits second or baud For example a 9600 baud serial link transfers 9600 bits per second 21 Serial Port Basics SDR CF SDR OEM CF Configuration Guide rev 1 2 The EIA RS 232C standard permits data rates up to 19200 bps and cable lengths up to 400 meters but not both data rate maximum distance bps meters feet 19200 15 45 9600 25 76 4800 50 152 2400 100 304 1200 200 608 600 400 1216 Table A 1 Data rates and distances for RS 232 communications Although the specification only defines rates up to 19200 bps communication using data rates as high as 230400 bps and a short lt 2 meter cable are common S
25. ard you may need to format it using MS DOS Windows 95 98 ME Windows NT 2000 XP or another operating system that supports the FAT16 file system The SDR supports only the FAT16 file system If your computer supports the NTFS FAT32 HPFS or other advanced file systems be sure your card is formatted using conventional FAT16 24 SDR CF SDR OEM CF Configuration Guide rev 1 2 Operations Format Removable Disk F Capacity 488 MB File system FAT FAT32 FAT Default allocation size v Volume label Format options C Quick Format Figure 3 1 Formatting a CompactFlash card using the FAT FAT 16 file system instead of FAT32 3 1 6 Partitions In some cases disks are partitioned to contain multiple virtual drives on a single disk Partitioning is sometimes done to overcome the 2 gigabyte size limit in MS DOS and create multiple 2 gigabyte drives support multiple operating systems and file systems or make more efficient use of disk space FDISK EXE included with MS DOS and Windows 95 98 Disk Administrator included with Windows NT 2000 XP Vista Norton Disk Doctor and Norton DiskEdit are useful tools for managing and analyzing disk partitioning schemes The SDR supports both extended and primary FAT16 and VFAT partitions but always reads and writes files in the first partition it recognizes as FAT16 or VEAT 3 1 7 Considerations for slow devices Mass
26. cececsdescecleces fen cees else es ste gnee dbs ia aSa adaa ee taata ieat 51 A 2 1 Data rates and the UART eccceeesneeeeeeeeeeeeeneeeseeaeeeseneeeeesnaeeeenenaes 52 A 3 More asynchronous serial parameters aeee reee 52 A332 DIESAnd DCE EE AEAEE O ae sa dacs std dacs haa eevee cede Nacaeete peta 53 A323 SAMOS AKING y sietett cen cetduceeuavecceedauds cpeeebacdensiedeeaedhtasdoetedueseteee 54 A 3 4 Voltage levels nrinn ninii eidi iiaii 54 B SDR CF and SDR OEM CF Specifications 0 B 1 Electrical specifications ccceecceceeeeeeeeeneceeeeeeeeeeaeeeeeeeeesensieeeeeeeess 57 B 1 5 J7 rear power receptacle pin configuration s es 57 B 1 6 J1 power receptacle pin configuration eeeseeeerreeieieerrreererrere 58 B 2 Serial COMMUNICATIONS 0 ee eee eect eeeeeee ee eeteeeeetaaeeeeeeeaeeeeneeeeneas 58 B 3 CompactFlash Socket missien tikanta aeina taiiga 58 B 4 Mechanical Specifications eeeeeeeeeeerirreriresrrrresrirreerinrrernssrerees 58 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Getting Started 1 1 Overview DataBridge SDR serial data recorders record RS 232 serial data to industry standard mass storage using an MS DOS Windows compatible FAT file format The SDR CF and SDR OEM CF is an SDR equipped with a Type I or II CompactFlash CF socket and is designed for use with CompactFlash storage media The SDR is equipped with two serial ports With t
27. data indicator should blink as you press keys indicating data is being received When finished press the record button again to stop recording and inspect the file created on the CF card Note The SDR will not echo data while it is being recorded so you will not see characters appear on screen as you type You can enable your terminal software s local echo or full duplex feature to view data as you send it 22 SDR CF SDR OEM CF Configuration Guide rev 1 2 Operations Operations 3 1 Record mode When you press the record button or type R from the Configuration menu the SDR searches for the current file specified in the File System Functions menu creates it if necessary and opens it Once the SDR has successfully opened the file the record indicator turns on and the SDR enters record mode Once in record mode the SDR records any data received on the data port to the open file While in record mode the SDR also transmits the messages stored in nonvolatile memory at the specified intervals to the data source connected to its data port 3 1 1 Receiving data The data indicator flashes when the SDR receives data This indicator is useful to ensure that the SDR is actually receiving data via the data port Note this flashing indicator does not guarantee a correct baud rate Incorrect baud rates between the data source and SDR may still cause the data indicator to flash 23 Operations SDR CF SDR OEM CF Configuration Gui
28. de rev 1 2 NOTE If your storage media was included with SDR it is already formatted properly 3 1 2 Stopping recording Incoming data is appended to the open file as it is received until you stop recording by either pressing the record button or typing S from the Configuration menu The SDR then closes the file updates its directory entry recording file size date and time and returns to stop mode 3 1 3 Power failure and improper shutdowns If the SDR loses power while in record mode it returns to record mode after power is restored When powering up after a loss of power while recording the SDR waits about 5 seconds and prompts you to hit any key or the record button to abort returning to record mode An improper shutdown may result in loss of data due to sector buffering and caching in the storage device and minor allocation errors that can be repaired using the MS DOS SCANDISK EXE utility Norton Disk Doctor or Windows 95 98 NT 2000 XP Explorer 3 1 4 Full storage media When the storage media s first valid partition is full the SDR returns to stop mode unless overwrite oldest mode is enabled in which case the SDR will delete the oldest file in the target folder and return to recording mode You can delete files on the target media using your computer or replace it then insert the media and press the record button and append data normally 3 1 5 Formatting the storage media If you have purchased a CF c
29. de without the long distance prefix Figure 1 4 The default settings under New Connection Properties in HyperTerminal New Connection Properties Connect To Settings Function arrow and ctr keys act as Backspace key sends Gr H Del Cri H Space Cirl H C Play sound when connecting or disconnecting Figure 1 5 The default settings under the New Connection Properties tab in HyperTerminal Direct to Com4 HyperTerminal File Edit View Call Transfer Help De ss 08 E Acumen Instruments Corporation 61 DataBridge SDR CF rev 8 9 Cu t filename Set time Set date Toggle ANSI mode ANSI is ON Toggle messages messages are Edit messages Recording parameters File system functions Enter serial passthrough mode Configure data port for attached device woo AN ew M 1 mode recording is ng Enter choice 1 2 3 4 5 6 7 8 9 R 9600 8 N 1 SCROLL CAPS Num Capture Printecho Figure 1 6 The SDR Configuration menu in HyperTerminal with ANSI mode ON Congratulations You are now talking to the SDR and can begin configuring it for your application 10 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Configuring the DataBridge SDR CF Now that you have access to the SDR s menu system you are ready to configure it for use with your serial data source Using the Configuration menu you can
30. ebse 47 Exception 4 Bad Boot Record 2 0 00 eeeceeseeeeeeeeeeeeeneeeeeeneeeeenneeeeneas 47 Exception 5 Hardware Error c ccceceeeeeeeeeeeeeeeeeseeeenaeeeeeeeeeeeees 48 Exception 6 EEPROM Error cceeeescceeenseeeeeeeeeeeeneeeeeenaeeeenneeeeneaa 48 Exception 7 Cache Error ccccccenestcccseseececnaticedeesuacevesconenedactnenvsnedeenscs 48 Exception 8 Buffer Error firmware error 48 Exception 9 Tasking Error firmware error 48 Exception 10 ATA CompactFlash Error 48 Exception 11 Directory Creation Eror eenen 48 Exception 12 FAT12 File System Detected 0 eee ceeseeeseeeeeeeees 48 Exception 13 FAT32 File System Detected 0 ccc eeeseeeeeeeeeeeeees 48 5 2 Contacting Acumen Instruments Corporation ceeeeeesneeeeeeneees 49 52 1 Technical SUpport aeia ei eai aa EE E eE E A aE 49 522 US Mall e ar sche Nes e rea a e aae n EREA TERE araa 49 5 23 E mail seking seen el eee ni aE 49 5 2 4 World Wide Web iscsi onar a e Nop eoa 49 5 3 Returning Equipment siissaiiiseuiiiiirieriiennnindacietineinie iiin aknainnac nirea 49 5 4 Warranty dierent ian a a a A e 50 5 4 1 One year Warranty cece eeeeeceeeteee cena ee eeenaeeeeeeaeeeeneeeeeetnaeeeenenaeeeeeenaeens 50 54 2 ExCIUSIONS 3 0 sayin nanny had Wee a eee a 50 54 3 Limitations wiis ccr oh aa ania e ea eaten acted ei ues eects 50 A Serial Port Basics cic cach eee A 1 S rial specifications senna Wee aie ieee 51 A2 Datatatessc ccvi
31. ect something about the data it contains Notes about filenames When you enter a filename it must conform to the FAT16 8 3 filename format This means that files contain up to 8 characters a period dot and up to three more characters For example BRIDGE DAT ABCDEFGH 123 and 1 are all valid filenames while DATA FILE and JOHNSMITH TXT are not The SDR ignores characters you type that are not allowed in FAT16 filenames such as 1 To specify the name of the file the SDR will use for recording data type 7 at the main menu prompt to enter the File System Functions submenu see Figure 2 4 You can use Option 3 to change directory without having to retype the filename 14 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF From the File System Functions menu press 2 Then when prompted backspace over the current filename path and type a filename pressing the lt Enter gt key when finished or lt Esc gt to cancel changes If your filename is not 8 3 compliant the SDR does its best to make it compliant You can return to the main menu by typing Q Direct to Com4 HyperTerminal File Edit View Call Transfer Help Ose 53 28 E Acumen Instruments Corporation RE DataBridge SDR CF rev 8 9 Current filename 1 Display current directory Select file Change current directory Delete Rename Download directory via YModem batch Download file as ASCII text Q Return to main menu
32. ee Figure 2 1 Direct to Com4 HyperTerminal File Edit View Call Transfer Help Dae 6 025 EF Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Set time Set date Toggle ANSI mode ANSI is ON Toggle messages messages are Edit messages Recording parameters File system functions Enter serial passthrough mode Configure data port for attached device Enter record mode recording is i Stop recording 1 2 3 4 5 6 7 8 9 R 1 1 2 3 4 9 6 7 8 9 R SCROLL CAPS Capture Print echo Figure 2 1 Setting the SDR s time To set the date type 2 at the menu prompt Then enter the date using two digits for each of the month and day fields and four digits for the year field omitting any hyphens or other characters Press any key to return to the main configuration menu See Figure 2 2 for an example 12 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Direct to Com4 HyperTerminal File Edit View Call Transfer Help Dae 6 05 E Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Set time Set date Toggle ANSI mode ANSI is ON Toggle messages messages are Edit messages RTS output Recording parameters CTS input a File system functions DIR output state Enter serial passthrough mode Configure data port for attached device Enter record mode recording is Stop recording 1 2 3 4 5 6 7 8 9
33. en prompted enter the desired message number 0 7 and type a message followed by the lt Enter gt key Direct to Com4 HyperTerminal File Edit View Call Transfer Help Dae S3 25 f Acumen Instruments Corporation DataBridge SDR CF rev 8 9 interval CR LF message oY YY 0 1 2 3 4 5 6 5 1 Edit message contents 2 Edit message parameters Q Return to main menu Enter choice 1 2 Q 1 Enter message number 0 7 Enter message hh for hex for press Enter to end gso0sN 1 SCROLL CAPS Num Capture Print echo Figure 2 10 Changing message zero to 1RD Setting message parameters To change a message s parameters type 2 at the menu prompt When prompted enter the desired message number 0 7 and type a message followed by the lt Enter gt key Output intervals The SDR sends a message then waits a specific amount of time before sending the message again When configuring a message you are prompted to enter this period or output interval For instance if the message should be output once every ten seconds type 10 and press the lt Enter gt key To disable a message but leave its contents intact enter 0 20 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF Initialization Some devices wake up or begin continuously sending data only after receiving a specific command the initialization string When prompted press Y to indicate that the SDR sh
34. erminal software on a PC you can use the configuration port to manage files set up and communicate with the data port set date and time modify output messages download data manipulate the storage media and enter record and stop modes While recording you can also monitor recording using the configuration port During Record mode the data port accepts RS 232C serial data from your data source For data sources that require initialization or querying the SDR can store and transmit up to eight user defined messages Each message is independent and can be sent when recording starts when recording stops or periodically at specific time intervals NOTE The data source is a device that transmits serial data for use by a computer printer or data logger Both SDR ports support baud rates up to 230 400 bps and RTS CTS hardware handshaking for reliable high speed communication Your SDR is also equipped with a real time clock power saving features non volatile memory and a resume on power failure feature The SDR features a one button front panel user interface that starts and stops recording 1 2 Before you start Before you start be sure you have the following items available e DataBridge SDR CF or SDR OEM CF board e A5VDC regulated or 7 30VDC power supply e RS 232 DB9 serial cable s e Acomputer or terminal with an available serial port 1 3 A quick guide to the DataBridge SDR On the front of the SDR CF are the CF socke
35. inal Once you have chosen to receive a file you must specify a location where HyperTerminal will put the files that are downloaded and the receiving protocol Ymodem see Figure 4 15 Acumen Instruments Corporation ron Pao DataBridge SDR CF rev 8 9 Current filename DATA Display current directory Select file Change current direcil Receive File Delete D PENG TG Place received file in the following folder AN ESSAS C Documents and Settings Abby Kratoska Start Use receiving protocol Download directory Download file as AS Return to main menu Yr Enter choice 1 2 3 4 5 CPi Begin your YMODEM doun oa e Ae a Figure 4 15 Selecting Ymodem as your file transfer protocol in HyperTerminal Once the download begins everything is automatic Figure 4 16 shows the progress menu HyperTerminal displays while the downloading You can cancel a Ymodem download and return to the File System Functions submenu by holding the lt Ctr1 gt key and pressing X Ctr1 X 42 SDR CF SDR OEM CF Configuration Guide rev 1 2 You may wish to disable ANSI mode option 3 from the Configuration menu when using ASCII download Direct to Com4 HyperTerminal Cees ie f Acumen Instruments Corporation DataBridge SDR CF r Ymodem file receive for Direct to Com4 Display current ving SDR 0000 DAT Select file Change current i C Documents and Settings Abby Kratoska Start Menu Program
36. ite oldest mode on and off The menu displays the state of overwrite oldest mode 4 3 3 Toggle append mode When power is lost during recording your SDR can either append new data to the current file when power is restored or begin recording using a new 34 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuration Menu Reference file Menu option 3 turns append mode on and off The menu displays the state of append mode When append mode is off the SDR will generate a name for the new file based on the current filename It does this by incrementing the filename using the characters 0 through 9 and A through Z If the target filename without extension is less than eight characters and append mode is off the SDR pads the name with zeros Examples of filename generation are shown in Figure 4 6 Before Incrementing After Incrementing BRIDGE DAT BRIDGEO1 DAT BRIDGEO1 DAT BRIDGEO2 DAT BRIDGEO9Y DAT BRIDGEOA DAT BRIDGEOZ DAT BRIDGE10 DAT BRIDGE10 DAT BRIDGE11 DAT Figure 4 6 Generating filenames when append mode is off Note A disk s root directory typically holds only 512 directory entries To avoid exceeding this 512 file limit do not record using the root directory in environments where power will be lost frequently 4 3 4 Set scheduled file close parameters The SDR can periodically close and reopen or create new files automatically This is useful to ensure that data is committed to the di
37. low you to download all files in the current directory using terminal software To initiate a Ymodem download type 6 and wait for the begin your download message see Figure 4 13 Direct to Com4 HyperTerminal File Edit View Call Transfer Help Dae 3 025 E Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Display current directory Select file Change current directory Delete Rename Download directory via YModem batch Download file as ASCII text Return to main menu Enter choice 1 2 3 4 5 6 7 0 6 Begin your YMODEM download now use CTRL X to cancel 9600 8 N 1 1 SCROLL CAPS Num Capture Printecho Figure 4 13 The SDR ready to begin downloading files using Ymodem Then using your terminal software start a Ymodem batch download In HyperTerminal you can download the disk using Ymodem by selecting Receive File from the Transfer menu item see Figure 4 14 41 Configuration Menu Reference SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal Acumen Ins MELESE i t filename Capture to Printer 1 Display current directory Select file Change current directory Delete Rename Download directory via YModem batch Download file as ASCII text Q Return to main menu Enter choice 1 2 3 4 5 6 7 Q 6 Begin your YMODEM download now use CTRL X to cancel Figure 4 14 Preparing to download a directory using HyperTerm
38. n as terminal software to communicate with it Typical communications software used is HyperTerminal which is SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF included with Microsoft Windows 95 98 NT 4 0 2000 XP Vista Many other terminal programs are widely available for Windows DOS linux and other platforms To access HyperTerminal click the Windows start button and choose Programs then Accessories then Communications and then HyperTerminal Configure HyperTerminal to communicate using the serial port you connected to the SDR the appropriate baud rate 9600 bps by default and the serial data format parameters must be 8N1 See Section 3 2 if you wish to change the SDR s configuration port serial parameters from the default 9600 bps 8N1 Once the SDR is connected to your computer and you are running terminal software the SDR Configuration menu should appear see Figure 1 in your terminal window If you don t see the Configuration menu try typing lt Enter gt or lt Space gt to refresh the display By default the SDR s ANSI mode is on ANSI mode results in a more clear and readable display The color user interface also continuously updates time and status information By default HyperTerminal settings are configured to communicate with the SDR The default settings are pictured in Figures 1 4 and 1 5 new Properties Connect To Settings Bo Country region Enter the area co
39. n to discuss repair or replacement Exception 7 Cache Error Rare hardware error Contact Acumen to discuss repair or replacement Exception 8 Buffer Error firmware error Rare error that may occur in customized or beta firmware versions Contact Acumen to report Exception 9 Tasking Error firmware error Rare error that may occur in customized or beta firmware versions Contact Acumen to report Exception 10 ATA CompactFlash Error The CompactFlash media has reported a fatal error to the SDR CF Reinsert replace the media and contact Acumen if problem persists Exception 11 Directory Creation Error Rare The SDR CF cannot create the subdirectory files are to be recorded to Try using a different directory name or reformatting the media Exception 12 FAT12 File System Detected The SDR CF has determined that the CF card was formatted using the FAT12 file system which is unsupported Reformat the CF card using the A 512 option Windows 2000 XP and retry Occurs only in firmware revisions 8 7 and higher Exception 13 FAT32 File System Detected The SDR CF has determined that the CF card was formatted using the FAT32 file system which is unsupported Reformat the CF card using the FS FAT option Windows 2000 XP and retry Occurs only in firmware revisions 8 7 and higher 48 SDR CF SDR OEM CF Configuration Guide rev 1 2 Service and Support 5 2 Contacting Acumen Instruments Corporation 5 2 1 Technical su
40. ng passthrough mode Particularly enabling RTS CTS handshaking for a device that doesn t support hardware handshaking may cause these hangs If your SDR hangs during passthrough mode remove power for five seconds and then reapply power Configuration Menu Reference SDR CF SDR OEM CF Configuration Guide rev 1 2 4 2 Edit Messages menu To enter the Edit Messages submenu type 5 from the Configuration menu The Edit Messages menu appears see Figure 4 3 To edit a message s contents type 1 Select the number of the message you would like to edit and type in the new message contents Pressing lt Enter gt saves the message and returns you to the Edit Messages menu Direct to Com4 HyperTerminal File Edit View Call Transfer Help Acumen Instruments Corporation DataBridge SDR CF rev 8 9 interval CR LF message X 0 0 8 0 0 1 2 3 4 5 6 7 1 Edit message contents 2 Edit message parameters Q Return to main menu Enter choice 1 2 Q 1 Enter message number 0 7 Enter message hh for hex for press Enter to end 96008 1 SCROLL Num Capture Print echo Figure 4 3 Entering text for message 0 To edit a message s parameters type 2 and select the number of the message you would like to change the parameters for Follow the prompts to set the output interval whether to send the message on initialization entering record mode whether to send the message when stopping exi
41. oldest mode oe eececeeeeeceeeeeneeeeeeneeeeenneeeeeenaeeeeneaaes 34 4 3 3 Toggle append MOde c cc c scdeceyceteeenedacdecnegelcebsacoedeensdstesceetttseespeeeesceae 34 4 3 4 Set scheduled file close parameters cc eesseeeeeeeeeeeeeeeeeeenneeeeeenaees 35 4 3 5 Time stamp incoming lines ee eee eeeeeeeeeeeeneeeeeenaeeeseneeeeeenaeeeeeeaaes 37 4 3 6 Power up in passthrough Mode eeecceeeeseeeeeeeeeeeeneeeeeeeeeeeenaeeeeeenaes 39 4 4 File System Functions MENU ececeeeeeeeeeeneeeeseeeeeeeeeeeeeeeaeeeseeeeeees 39 4 4 1 Display root direCtory ccccccecccecceeececeeeeeeeceeeceeeeeseeeeaeeeeeeeeeesenaeees 40 AAD Select filenin iege kaa aa aait a 40 4 4 3 Change current directory s cseasesiiiiceieiciinerianindnierirener ikain iaadrune ennan 40 44 4 Delete current file eecceceseseeconceeeenertesedecereesoneesaecceeersuecnesnceedersenese 40 4 4 5 Rename current file 22 e cecce cis eceieeesiee ees eevee sec dived a a 41 4 4 6 Download directory via Ymodem batch ssesissseriesrrreerrireerrnsrer 41 4 4 7 Download file as ASCII text ee eeeneeeeeeeeeeenneeeeeenaeeeseeeeeeesnaeeeeneaaes 43 5 Service and Support scccsesscecide nesses econ eaten ae 5 1 Exception Codes wi c cc ccccccsssneedeecieeevee a ee dis 47 Exception 2 Root Directory Full cccceceeceeeeceeeeeeeeeeeeeeeeeeeeeeee 47 Exception 3 DiSk Fulll c 2e cipeddies geitssiecieteesined ude cdomstaertsdenteatic
42. onds 1 second 1 1 minute 60 1 hour 3600 1 day 86400 1 week 604800 1 month 2629800 6 months 15778800 based on a 365 4 day year Table 4 1 Common file closing time intervals In Figure 4 8 the user is specifying that the file will be closed once a megabyte of data is received 1024x1024 1048576 bytes 36 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuration Menu Reference Direct to Com4 HyperTerminal File Edit View Call Transfer Help De 23 04 e Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Cur t filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 Q 4 Enable scheduled file closing Y N Y Close files based on file size in bytes V N Y Enter file closing size in bytes 0 16777215 1048576 re Printecho Figure 4 8 Configuring scheduled file close every 1 megabyte 4 3 5 Time stamp incoming lines The SDR allows you to add the time and date to each line of incoming data Time stamping is triggered by reception of a character of your choice Typically the line feed character ASCII code 10 is a good choice since a line feed character usually precedes each new line from the data source see Figure 4 9 However some devices output only a carriage return ASCII code 13 a
43. ould send the message once when it enters record mode This feature can be used together with output interval to both initialize a device with a specific message and send the message periodically This is useful for resetting or automatically reinitializing a data source if its power is lost Entering N disables this feature Stop In some applications you may wish to send a message to an attached device when your SDR stops recording When prompted press Y to indicate that the SDR should send the message once when it leaves record mode This feature can be used to power down or put a device to sleep or tell the data source to stop sending data while the SDR is not recording Carriage return and line feed When prompted enter to instruct the SDR to add a carriage return and or line feed to the end of a message Many devices require a carriage return and or line feed after a message while others may require neither Your data source s documentation can help you determine whether carriage returns and or line feeds are required after query strings Direct to COM4 HyperTerminal File Edit View Cal Transfer Help Dae 3s 025 E Acumen Instruments Corporation DataBridge SDR CF rev 8 9 interval S LF message O NN t N i N 0 N i N O N N N 1 Edit message contents 2 Edit message parameters Q Return to main menu Enter choice 1 2 Q 2 Enter message number 0 7 Enter output interval in seconde 1677
44. pport Service and technical support can be reached between the hours of 9AM and 5PM Central Standard Time Monday through Friday Acumen Instruments Corporation can be reached at the following phone numbers 515 296 5366 voice 515 296 3554 fax 5 2 2 U S Mail Acumen Instruments Corporation can be reached by mail at Acumen Instruments Corporation 2625 N Loop Drive Suite 2200 Ames IA 50010 USA 5 2 3 E mail Acumen Instruments Corporation can be reached via e mail at info acumeninstruments com 5 2 4 World Wide Web Acumen Instruments Corporation maintains a web site containing product information and downloads http www acumeninstruments com 5 3 Returning Equipment Before returning equipment to Acumen Instruments Corporation please call for an RMA number and shipping information This allows us to plan for your shipment in order to provide the best possible service When returning equipment please include a note indicating the symptoms of the failure and any other pertinent information 49 Service and Support SDR CF SDR OEM CF Configuration Guide rev 1 2 5 4 Warranty 5 4 1 One year warranty Acumen Instruments Corporation warrants this product to be free from defects in materials and workmanship for a period of one 1 year from the date of shipment During the warranty period Acumen Instruments Corporation will at its option either repair or replace products that prove to be defective 5 4 2 E
45. r functions and constitute DTR DSR handshaking A DTE or DCE devices may employ either or both forms of handshaking Often deasserting RTS or CTS signals micro events such as a buffer that is full but will be empty soon while deasserting DTR or DSR may signal major events such as that power has not been applied RTS CTS handshaking and DTR DSR handshaking are both referred to as hardware handshaking Another form of handshaking XON XOFF or software handshaking requires that the receiver send a character Control S ASCII 19 to halt data transfer and another character Control Q ASCII 17 to resume transfer Although this method eliminates the need for the RTS CTS DTR or DSR signals it suffers from slow response time by the receiver and renders 2 characters of the 256 character ASCII set unusable A 3 4 Voltage levels For noise immunity and long cable lengths RS 232 devices convert TTL CMOS level signals OV logic zero 5V or 3 3V logic one to higher voltage bipolar signals For the TD and RD signal lines RS 232 devices use a voltage between 3V and 25V to transmit a one and a voltage between 3V and 25V to transmit a zero For the other signal lines RTS 34 SDR CF SDR OEM CF Configuration Guide rev 1 2 Serial Port Basics CTS etc RS 232 devices use 3V to 25V to assert the signal and 3V to 25V to deassert the signal These voltage levels are defined in the EIA TIA 232E specification So when a DT
46. ront of the unit will blink incessantly to indicate that the SDR is in passthrough mode 4 1 6 Configure Data Port for Attached Device To set the baud rate for the data port type 9 and then select a baud rate from the displayed list 2400 4800 9600 19200 38400 57600 115200 230400 bps Select a baud rate that matches the rate used by the device attached to the data port Typing a 1 or 0 turns hardware handshaking on or off The current settings are displayed at the bottom of the input window Pressing lt Enter gt or lt ESC gt saves the settings and returns to the Configuration menu Direct to Com4 HyperTerminal File Edit View Call Transfer Help De 23 25 A 01 26 2007 Current filename Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Set t _ Data Port Configuration Set di Port Speed bps i Toggl A E 3 ropped Toggli 7 3 free Edit D Recor File RTS CTS Hendaiak ing 1 Enter Confil Current settings Press Enter or ESC to save Enter Stop recording Enter choice 1 2 3 4 5 6 7 8 9 R 9 1 2 3 4 S 6 7 8 9 R S Figure 4 2 Data port configuration 4 1 7 Start Stop Recording Like the record button the main menu commands R and S are used to immediately enter record and stop modes The R menu option shows the current state of recording on or off 31 Configuration Menu Reference NOTE Incorrect handshaking settings may cause the SDR to become unresponsive duri
47. s Acces a Eror checking CRC Delete 0 Rename p Total retries 0 Download direct Download file a Q Return to main anonnnnnnnannnnnanonnannannanannannni 3 00 00 35 Remaining 00 00 00 Enter choice 1 2 3 Begin your YHODEM d Connected 2 35 22 ANSIW 9600 8 N 1 SCROLL CAPS num Capture Print echo Figure 4 16 Ymodem download in progress in HyperTerminal 4 4 7 Download file as ASCII text You can use menu option 7 to download or view a file ASCII downloading doesn t provide error checking but is useful for displaying short files or for downloading using terminal software that doesn t support Ymodem To initiate an ASCII download type 7 When the begin your download message appears optionally initiate an ASCII download using your terminal software and then press any key to begin or hold the Ctrl key and press C Ctrl C to return to the File System Functions submenu see Figure 4 17 43 Configuration Menu Reference Configuration Menu Reference SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal file Edit View Call Transfer Help De 535 08 E Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Cu filename 1 Display current directory Select file Change current directory Delete Rename Download directory via YModem batch Download file as ASCII text Q Return to m
48. select the appropriate settings to for your data source When your 13 Configuring the DataBridge SDR CF SDR CF SDR OEM CF Configuration Guide rev 1 2 You can also change the filename and folder by typing 6 at the main menu then 1 in the Recording Parameters submenu desired settings are indicated type lt Enter gt or lt ESC gt to save the settings and close the window Direct to Com4 HyperTerminal Bile Edit View Call Transfer Help Dae 23 25 A Acumen Instruments Corporation 81 26 2007 17 04 57 DataBridge SDR CF rev 8 9 Current filename Set t _ Data Port Configuration Set d Port Speed bps A E B i Toggl li i Cc I I I I I Togg Edit Recor File D 1 it p at tandah pe DIR output state Enter Confij Current settings Press Enter or ESC to save Enter Stop recording Enter choice 1 2 3 4 5 6 7 8 9 R 9 1 2 3 4 5 6 7 8 9 R 96008 N 1 SCROLL CAPS yum Capture Printecho Figure 2 3 The Data Port Configuration prompt 2 3 Specifying a filename and folder By default the SDR records data to a file called SDR 0000 DAT located in the DATA subfolder in the CF card s root directory You can keep this filename or specify a new filename that reflects the data it contains For example you may wish to use PRESSURE TXT for pressure data or even a name like TEMP0907 TXT for temperature data from September 2007 Likewise your choice of folder names may refl
49. serial port s consult the documentation included with your computer If all of your computer s serial port s are occupied contact your manufacturer or support provider for information about adding a serial port to your computer Using a serial to USB adaptor you could also connect through your computer s available USB ports If your computer is equipped with a DB9M receptacle connect the SDR s configuration port DB9F your computer s serial port using a standard serial cable If your computer s available serial port is a DB25M connector you will need to purchase a DB9M to DB25F adapter often referred to as an AT adapter to connect a 9 pin serial cable to your 25 pin serial port the adapter has DB9 male and DB25 female connectors Once you have located your serial port you need to know whether your port is configured for operation as COM1 COM2 COM3 or COM4 some computers even include COM5 COM8 In most cases a port that uses a DB9 male connector is configured as COM1 or perhaps COM3 while a DB25 male connector is configured as COM2 or COMA If one or more of your computer s ports are occupied by a mouse modem serial printer or other serial devices you may need to explore your computer s configuration information and use a process of elimination to determine your port s COM designation 1 4 3 Communications software Now that the SDR is connected to your computer configure communications software also know
50. sk especially when recording at low data rates When used with append mode off scheduled file closings ensure that your data files are a manageable size Each file is stamped with the date and time when closed which can later provide useful diagnostic information Files can be closed on a time or file size basis To schedule file closings type 4 from the Recording Parameters submenu When prompted either chose to close files based on file size or time interval up to 16777216 seconds In Figure 4 7 the user is specifying that the file will be closed every hour of recording time 35 Configuration Menu Reference SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal file Edit View Call Transfer Help Dae 3 28 FE Acumen Instruments Corporation DataBridge SDR CF rev 8 9 t filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 0Q 4 Enable scheduled file closing Y N Y Close files based on file size in bytes Y N Y Enter file closing size in bytes 0 16777215 3600 pture Print echo Figure 4 7 Configuring scheduled file close for every 3600 seconds 1 hour of recording time Table 4 1 provides useful conversion factors for specifying file closing intervals Interval Sec
51. storage devices particularly low power and removable devices sometimes suffer from slow disk access times Most notably the IBM MicroDrive may suffer from slow access times due to rotational latency and power saving features CompactFlash card users need not worry about access time considerations It is important to note that access times quoted by manufacturers are averages A worst case access time can be ten times the number specified For instance a drive or card with a 25 millisecond average access time may sometimes require 250 milliseconds or more to access a sector 25 Operations SDR CF SDR OEM CF Configuration Guide rev 1 2 The SDR includes a 120 kilobyte buffer to store characters received during slow disk accesses The maximum disk access time before the SDR asserts its handshaking signal or characters are lost can be calculated using Equation 3 1 120 000 bytes average byte rate Equation 3 1 Maximum disk access time The average byte rate for a serial data source that transmits data continuously is given in Equation 3 2 bits _ 1byte second 10 bits average byte rate Equation 3 2 Average byte rate TIP Enable hardware So if a data source transmits data continuously at 9600 bps the maximum handshaking on SDR allowable disk access time is approximately 125 seconds A 230400 bps data and your serial data source will only allow for 5 seconds of buffering enough to potentially cause source when
52. t record button and LED indicators The SDR can be toggled in and out of record mode using the record button located on the front panel The LED indicators show the SDR s current recording status The data indicator flashes when data is received and is used to verify data reception from your data source Fault Indicator Power Indicator Data Indicator Recording Indicator Record Button Figure 1 1 SDR CF Front Panel Controls SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuring the DataBridge SDR CF On the rear are two serial ports one female nine pin D subminiature NOTE The connector DB9F for the configuration port and one male nine pin D configuration and data subminiature connector DB9M for the data port The 7 30 VDC power ports can each operate input is also located on the rear panel at different baud rates lt wwo amp ES a S Configuration Port OF Data Port DB9F RS 232 DB9M RS 232 Power L to PC serial port O e _ from serial data source om ENDS Figure 1 2 SDR CF Rear Panel Inside the enclosure See Figure 1 3 along the left hand side is a 2 pin 5V NOTE Do not power connector and a 3V lithium battery On the inside right is a bank of remove front panel four switches for setting configuration port baud rate and handshaking if To enter the needed You may also notice other connectors labeled API Port and JTAG enclosure remove Port These are used d
53. t 6 1 3 A quick guide to the DataBridge SDR eeseisriesrererrriieerrireerresres 6 1 4 Deploying the DataBridge SDR sssesssieeriiierissrrrresrirresrinreerrnsrsrnss 8 1 4 1 Connecting power to your SDR 0 eee eeeeeceeneeeeeeeeeeeeeeaeeeeeeaeeeeeeeaeees 8 1 4 2 Connecting to the configuration POrt eee ceeeeeeeeeeeeenneeeeeeneeeeeeeeees 8 1 4 3 Communications Software oe eecceeeeseeeeeeeneeeeneeeeeesaeeeeeeaeeeeenaeees 8 2 Configuring the DataBridge SDR CF eee 11 2 1 Setting date and Mensis iiine ii iaae 12 2 2 Configuring the data port e seeiesissssiieeriiresrinnsrrrssriiresrinreerinnrerrennt 13 2 3 Specifying a filename and folder eee ee eeneeeeeeeeeeeeeneeeeeeneeeeeeeeees 14 Notes about filenames s ccssesenceesecseeeessetnesseeseeseeaesesceeeetnentes 14 2 4 Setting recording parameters ccccceeeeeeeeeceeeeeeeeeeeeeeeeeeeeeseenenaeees 15 2 5 Entering Me SSAGES 2 ccc tec cedeeedeelenesedecgeeeddncebeedueedbdeccedeteeedensegesdenetes 19 Setting Message parameters 00 eee cece eeeeeeeeeenteeeseeaeeeeeneeeenead 20 2 6 Testing your configuration cece ee ccee cece ee eeeeeeeeeeeeeeeeseeeneaeeeeeeeeeeees 22 S OPEallonS scccresnaccoccvesaiaiaintemeiaieunecna na saetaceineleihe 23 3 1 Record Mode ii nihil e Gone we enn 23 S11 Receiving d tas pasii kei A sda sS ates oaea e EE 23 S122 STOPPING LECOFCING sesscezicsceteh E T T 24 3 1 3 Power failure and improper SNUtdGO
54. t the end of each line Consult your documentation or try line feed then carriage return if you don t see time stamps in your data Time stamps are written in MM DD YY HH MM SS format 37 Configuration Menu Reference Direct to Com4 HyperTerminal file Edit View Call Transfer Help De 3 08 Ee Acumen Instruments Corporation DataBridge SDR CF rev 8 9 Current filename Change target file Toggle overwrite oldest mode overwrite is Toggle append mode append is Set scheduled file close parameters Time stamp incoming lines Power up in passthrough mode Q Return to main menu Enter choice 1 2 3 4 5 6 0 5 Enable time stamping of incoming lines of data Y N Y Enter the ASCII code for a line end e g 10 for line feed 10 9600 8 N 1 SCROLL CAPS NUM Capture Print echo Figure 4 9 Enabling time stamping of incoming data after the line feed LF character Figure 4 10 shows an ASCII download of a file with time stamping enabled Comm4 HyperTerminal iojxj File Edit Yiew Call Transfer Help Ols 213 ala Display current directory Select file Change current directory Delete Rename Download directory via YModem batch Download file as ASCII text Play file via data port On oe wr pa Q Return to main menu Enter choice 1 2 3 4 5 6 7 8 0 7 Press any key to begin ASCII download use ESC to cancel space bar to pause poeno 18 34 52 GPRMC 000239 V 4159 9561 N
55. tandard modems communicate with computers at up to 115200 bps As you may have guessed the use of high baud rates requires more capable computer hardware At high baud rates a computer must process as many as 23000 characters per second The constant attention a computer must pay to its serial port makes this problematic particularly in multitasking environments such as Microsoft Windows 3 1 95 98 NT 2000 A 2 1 Data rates and the UART Computer hardware designers solve this problem by allowing the computer to respond to characters less frequently A Universal Asynchronous Receiver Transmitter UART the component responsible for communicating via RS 232 may contain several bytes of memory called a FIFO first in first out memory The original IBM PC and many of its successors used the 8250 UART which contained no FIFO That is a computer with 8250 or 16450 UART s must respond to every incoming character Newer PC s incorporate the 16550 UART or a variant The 16550 incorporates a 16 byte FIFO and is mandatory for communications at speeds above 9600 bps and is important for error free communications at lower speeds as well You can find out which type of UART s your computer uses by using the MSD EXE tool provided with DOS and Windows or by looking in the Windows 95 98 control panel A 3 More asynchronous serial parameters In most cases the data rate in bytes second can be approximated by dividing the baud rate in bi
56. ting record mode and whether to append carriage returns and or line feeds 32 SDR CF SDR OEM CF Configuration Guide rev 1 2 Configuration Menu Reference Direct to Com4 HyperTerminal file Edit View Call Transfer Help Hee Inet ean Corporation DataBridge SDR CF rev 8 9 interval CR LF message 0 if 0 0 0 0 0 0 i 1 2 3 4 5 6 7 1 Edit message contents 2 Edit message parameters Q Return to main menu Enter choice 1 2 0 2 Enter message number 0 7 Enter output interval in seeond 0 16777215 Initialize with message Y N Send message when stopping MN ON Append carriage return to message woes Append line feed to message Y N 9600 8 N 1 saou CAPS NUM Capture Print echo Figure 4 4 Changing the parameters for message 0 From the main configuration menu see Figure 4 1 typing 4 enables or disables all messages If you are using the message feature be sure the main menu displays messages are ON after menu item 4 To return to the Configuration menu from the Edit Messages menu press Q 4 3 Recording Parameters menu To enter the Recording Parameters submenu press 6 from the main configuration menu The Recording parameters submenu appears see Figure 4 5 33 Configuration Menu Reference SDR CF SDR OEM CF Configuration Guide rev 1 2 Direct to Com4 HyperTerminal MVE File Edit View Call Transfer Help Dae 33 025 E Acumen Instruments Corporation DataBridge
57. ts second by 10 If a byte consists of 8 bits why divide by 10 22 SDR CF SDR OEM CF Configuration Guide rev 1 2 Serial Port Basics To transfer data asynchronously the UART frames the 8 data bits between a stop bit and a start bit The start bit is always a zero while the stop bit is always a one So a byte of data sent serially is made up of 10 bits instead of the usual 8 Asynchronous serial devices can communicate using 7 or 8 data bits and 1 1 or 2 stop bits To further complicate matters devices can also employ a parity bit instead of an eighth data bit to check for errors Even parity systems transmit a one when the sum of the seven bits is an even number while odd parity systems transmit a one when the sum is odd Still more exotic systems may specify mark or space parity where the parity bit is always a one or zero respectively What does all of this mean Device vendors usually specify their data rate and format using statements like 9600 8N1 which translates to 9600 bps 8 data bits no parity and 1 stop bit or 19200 7E1 which translates to 19200 bps 7 data bits even parity and 1 stop bit NOTE Most serial devices format of eight data bits no parity and one stop bit 8N1 A 3 2 DTE and DCE The RS 232 specification defines two classes of devices data terminal equipment DTE and data communication equipment DCE Your computer s serial port is configured for DTE operation
58. uring manufacturing and custom applications They back panel only are not intended for general customer use 3 4 mil gt 2 F o0000 O PRR e E RLS em si o g LLELE TELT CLLLTT T MN aes o R O Ay it X t o aaa OAC Oe Un gt eah Nae 7 wl O Jerelelel O eooooo o i L Figure 1 3 SDR CF Internal Connections and switches SDR OEM CF NOTE Your computer s female DB25 connector is most likely a parallel port not a serial port 1 4 Deploying the DataBridge SDR 1 4 1 Connecting power to your SDR The SDR starter kit includes a 120VAC power supply that connects via the rear panel If you use an alternate power source it should be capable of sourcing at least 200mA When you apply power the power indicator should light and the other indicators should flash in sequence 1 4 2 Connecting to the configuration port To configure your SDR start by connecting the SDR s configuration port to an available serial port on your computer Serial ports are found on the back of your computer Most computers are equipped with either a DB9 male DB9M or on older computers a DB25M connector Male connectors have pins while female connectors have sockets If your computer uses a serial mouse it may already occupy your DB9 male connector Likewise if your computer is equipped with an external modem it may occupy your DB25M connector If you are unable to locate your
59. xclusions This warranty shall not apply to any defect failure or damage caused by misuse abuse improper application alteration accident disaster negligence use outside of the environmental specifications improper or inadequate maintenance or incorrect repair or servicing not performed or authorized by Acumen Instruments Corporation 5 4 3 Limitations ACUMEN INSTRUMENTS CORPORATION SHALL IN NO EVENT HAVE OBLIGTIONS OR LIABILITIES TO BUYER OR ANY OTHER PERSON FOR LOSS OF PROFITS LOSS OF USE OR INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT INCLUDING NEGLIGENCE STRICT LIABILITY OR ANY OTHER THEORY OR FORM OF ACTION EVEN IF ACUMEN INSTRUMENTS CORPORATION HAS BEEN ADVISED OF THE POSSIBILITY THEREOF ARISING OUT OF OR IN CONNECTION WITH THE SALE DELIVERY USE REPAIR OR PERFORMANCE OF THIS PRODUCT INCLUDING EQUIPMENT DOCUMENTATION AND SOFTWARE IN NO EVENT SHALL THE LIABILITY OF ACUMEN INSTRUMENTS CORPORATION ARISING IN CONNECTION WITH ANY PRODUCT EXCEED THE ACTUAL AMOUNT PAID FOR SUCH A PRODUCT THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES WRITTEN OR ORAL EXPRESSED OR IMPLIED INCLUDING IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 20 SDR CF SDR OEM CF Configuration Guide rev 1 2 Serial Port Basics Serial Port Basics A 1 Serial specifications Serial data is any data that is sent one bit at a time using a single electrical signal In contrast par
60. y will transmit data Other data sources send data continuously once they are initialized with a specific string or command Your serial data source may also have the option of powering down with a string or command that is sent when the SDR stops recording Or you may wish to stop the data source from transmitting data while the SDR is not recording If your device transmits data continuously without requiring input you don t need to send output messages You can configure the SDR to send up to eight independent messages to the data source on startup periodically or both on intervals from once a second to once every 194 days 19 NOTE From the main menu in the Recording Parameters menu option you will be able to check the state of power up in passthrough mode on menu option 6 By selecting this option you can turn this feature on or off Configuring the DataBridge SDR CF SDR CF SDR OEM CF Configuration Guide rev 1 2 Messages are stored as ASCII text strings in non volatile memory To use messages first enter a text string for one of the eight messages Then configure whether the message should be sent on when recording starts when recording stops or at an interval specified in seconds The SDR can also be configured to append a carriage return lt CR gt and or line feed lt LF gt to any message To enter a new message type 5 at the main menu prompt to enter the Edit Messages submenu To edit a message type 1 Wh

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