Digi Edgeport/416 DB-9
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1. 4 Edgeport 4r Edgeport 8 Edgeport 8r The Edgeport 2 Edgeport 4 Edgeport 4r Edgeport 8 and Edgeport Sr from Digi International are intelligent stackable expansion modules that connect to a PC or server running Windows 98 SE CE Me NT 4 0 2000 or Windows XP via the Universal Serial Bus USB providing high speed serial connectivity For more detailed information as well as the latest manual and technical updates visit www digi com support Cabling Edgeport Type A Type B Plug the Type A end of the USB cable into the USB port located in the back of your PC or into an available USB port on a standard hub or into a Digi Hubport Plug the Type B end of the USB cable into the back of the Edgeport If the drivers are not already installed go to Edgeport Driver Installation on page 7 Edgeport 4r and Edgeport 8r RJ 45 Pin Assignments Use the table below to find the RJ 45 pin assignments for your Edgeport4 r and Edgeport 8r Signal Description DTE Use Pin ft RTS Request to Send Output 1 DSR Data Set Ready Input 2 DCD Data Carrier Detect Input 3 RXD Received Data Input 4 TXD Transmitted Data Output 5 SG Signal Ground Reference 6 DTR Data Terminal Ready Output 7 CTS Clear to Send Input 8 Edgeport Installation Guide 90000403 Rev J Page 2 Edgeport 21 Edgeport 42 Edgeport 421 These Edgeports are multi connector converters for mobile and high end workstation users who need to attach multiple serial RS 232 ports a p2. following EU standards and other normative documents EMC EN55022 Class B 2006 EN55024 1998 A1 A2 EN61000 3 2 2000 A2 EN61000 3 3 1995 A1 A2 Safety EN 60950 2001 The following summarizes the specifications and requirements for EN55024 EN55022 Class B amp CISPR 22 Class B emission and immunity tests If the actual test levels are higher or different than required these levels are listed in the appropriate tables Edgeport Installation Guide 90000403 Rev J Page 18 EN55022 European Contact Test Specification Requirement EN55022 EE 49 231 9747 0 Conducted CISPR 22 Class B Emissions UL CSA Safety Information EN 55024 This device complies with the requirements of following safety standards below Digi International Joseph von Fraunhofer Str 23 Test Specification Requirement EN55024 UL 1950 3rd edition Electrostatic EN61000 4 2 2 4 kV direct contact CSA No 950 Discharge 2 4 kV and 8kV air insul f insulated surfaces Quali ty Manager 2 4 kV HCP amp VCP indirect Radiated EN61000 4 3 3 V m 80Mhz October 2006 Immunity 1000Mhz amp mod 1kHz sine wave at 80 Electrical Fast EN61000 4 4 0 5kV 1kV A C Transient Burst 0 5kV 1 0 EN61000 4 5 0 5kV IkV 1kV Conducted EN61000 4 6 3Vrms 150Mhz to Immunity 80Mhz amp mod 1kHz wave at 80 Magnetic EN61000 4 8 1 A m Not Applicable Immunity Voltage Dips amp EN61000 4 11 gt 95 10ms Interrupts
3. to physical USB ports No matter which converter is plugged into a given USB port it will use the COM port numbers assigned to that USB port This permits a converter to be to be replaced with a new unit and although the new unit has a different serial number it will receive the same COM port assignments as the old unit because they were both plugged into the same USB port When using this mode converters are identified not by their serial number but by a 2 7 digit number that identifies which USB port it is plugged into After changing this setting you will need to reboot before the change takes effect Edgeport Installation Guide 90000403 Rev J Page 15 Understanding Hubs Hubs critical components in the USB architecture are wiring concentrators that enable the attachment of multiple devices thus converting a single attachment point into multiple attachment points USB architecture allows a cascaded multiple hub configuration with certain power limitations explained later in this section See figure 1 Figure 1 Example of a Typical Hub Configuration Each hub has an upstream port connecting to the host and multiple downstream ports connecting to downstream devices possibly including other hubs A hub can detect attachment and detachment of downstream devices and enable and monitor the distribution of the power to downstream devices via their integral hardware and the operating system Each USB device reports its pow
4. use your new printer port 1 From the Start menu choose Settings and then Printers 2 Right click on the printer you wish to use on your new port and select Properties 3 In the Details tab click on the drop down list box under Print to the following port and choose USBLPTI then click OK Edgeport Installation Guide 90000403 Rev J Page 3 Edgeport 416 The Edgeport 416 utilizes a standards based USB bus for connectivity unlike many serial card products which require additional external proprietary hardware to support the same number of devices This Edgeport also supplies four USB ports providing users with a built in migration path as peripherals become USB ready The converters can be rack mounted and easily daisy chained together This Edgeport converter 1s available in two models one with DB25 connectors and one with DB9 connectors The two models are functionally equal but differ in the type and placement of the connectors Cabling Edgeport Type A Type B Connect one end of the power supply into the back of your Edgeport and the other end into an AC outlet To connect your Edgeport to a PC or Hub plug the Type A end of the USB cable into the USB port located in the back of your PC or into an available USB port on a standard hub or into a Digi Hubport Plug the Type B end of the USB cable into the back of the Edgeport 416 To connect a USB device to your Edgeport plug the Type A end of the USB cable into one of the
5. 30 500ms amp gt 95 5sec reduction at rated voltage Austin Texas Edgeport Installation Guide 90000403 Rev J Page 19 China RoHS statement The Table of Toxic and Hazardous Substances Elements and their Content shall apply to any product covered by this manual and labeled with the following symbol The Table of Toxic and Hazardous Substances Elements and their Content as required by China s Management Methods for the Control of Pollution from Electronic Information Products Toxic and Hazardous Substances or Elements AeA SMR MIC Hexavalent Polybrominated Polybrominated Lead Mercury Cadmium Chromium biphenyls diphenyl ethers Part Name Pb Hg Cd Cr VI PBB PBDE EA Bp 45 R 5 XS PTR REX ZARA 301 1002 08 X O O O O o ANENE ANNO RES EE EEN TA O Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ T 11363 2006 IAA A JO6 Y EE NI PRE X Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ T 11363 2006 BEIGE HB HSJ T11363 2006 R EL AJ PR NIZA HEA F DE Edgeport Installation Guide 90000403 Rev J Page 20 Digi International 11001 Bren Road East Minnetonka MN 55343 digi info digi com www digi com Corporate Headquarters 952 912 3444 877 912 3444 Fax
6. 952 912 4952 Digi Europe 49 231 9747 0 Digi Hong Kong 852 2833 1008 Digi North America 877 912 3444 Edgeport Installation Guide 90000403 Rev J Page 21
7. 97 Part Humber Boot Code Version 1 07 0 Download Code Version 4 80 0 Rom Size SKE Ram Size TEKE CPU Revision 2 Board Revisior 1 Number of Ports 4 Manufacture Date Edgeport Installation Guide 90000403 Rev J Page 10 e Configure Reassign the physical port on your device to any available Windows COM port number from 1 to 255 and give your device a user friendly Device Name This capability 1s particularly helpful if you have more than one device Configuration x In order for the changes to take effect the device must be unplugged and then plugged back into the USB port Device Hame ERMINE COM ports based on converter seral number To assign a new COM number to one of the ports type the new number in the held next to the port number Port 1 5 Port 2 E Port 3 7 Port 4 E Tell Me More Cancel e Port Flags Configure performance options and special functionality on a per port basis Port Flag Configuration x This dialog provides an interface for configuring performance options and special functionality om per port basis These features should only be used by advanced users and then only if instructed to do so by technical support Cancel Edgeport4 5507 00431 Low Remap Ignore Fast Fast Disable Ignore Timer Industrial Latency Baud Flush Writer Heads Plug Plau Ts Purge Logic settings R5232 R5232 R5232 a RS232 r Edgeport Installation Gui
8. Edgeport USB EXPANSION MODULES Installation Guide Models Edgeport 1 Edgeport 2 Edgeport 4 Edgeport 4r Edgeport 8 Edgeport 8r Edgeport 421 Edgeport 21 Edgeport 42 q B Edgeport 416 Edgeport 2c Edgeport 21c Edgeport 22c www digi com Table of Contents Edeeport Products vestida l Edgeport 1 Edgeport 2 Edgeport 4 Edgeport 4r Edgeport 8 Edgeport 8r 2 Edseport 21s Edgeport42 Edseporud ss ee es N ee a e Ea 3 Edeeport tl 6 sed oe EE SE ee ee AE ER GE oe ee taba A FP ER ds 5 Edseport l BNP 6 Edseport Driver list laf On Ed N DE a idee ae lae sea hetenets 7 Tie System Ne 8 Mors DAN OO Oe OE OE EE ES EE EE NG 9 THE GSS port Ul Pro raid 10 Undortandine Abu EED EE iio 16 Regulatory s Other Intonation ES ai 17 Edgeport Products Edgeport USB to Serial Converters offer an out of the box alternative to serial cards for easy plug and play COM port expansion Multiple serial parallel and USB ports can be added to a PC thin client or server in minutes without opening the chassis or reconfiguring and rebooting the system Its feature rich design reliable performance and unmatched operating system support Windows NT 4 0 CE XP 2000 2003 Server and more make the Edgeport ideal for mission critical enterprise applications Edgeport c USB Converter Edgeportya USB I XPansion N fodule Edgeport Installation Guide 90000403 Rev J Page I Edgeport 1 Edgeport 2 Edgeport
9. Edgeport s USB Type A slots and the Type B end of the USB cable into the device e g a Rapidport Hubport Edgeport 421 etc Power to the Edgeport DB25 and Edgeport DB9 may be supplied by a UL Listed Direct Plug In Power Unit or Information Technology Equipment Rated Power Unit rated 5 V dc at least 2 9 A if used in the U S and Canada or a power supply with similar rating and approved by your local safety code if it is used elsewhere For polarity see diagram to the right If the drivers are not already installed go to Edgeport Driver Installation on page 7 Edgeport Installation Guide 90000403 Rev J Page 4 Edgeport 2c The Edgeport 2c 1s an intelligent expansion module that connects to a PC or server running Windows 98 SE CE Me NT 4 0 2000 and Windows XP via the Universal Serial Bus USB providing high speed serial connectivity For more detailed information as well as the latest manual and technical updates visit our website at www digi com Cabling Edgeport gt gt i Type A Plug the USB cable with the Type A plug into a USB port located on your PC or into an available USB port on a standard hub or into a Digi Hubport If the drivers are not already installed go to Edgeport Driver Installation on page 7 Edgeport Installation Guide 90000403 Rev J Page 5 Edgeport 21c Edgeport 22c The Edgeport 21c and Edgeport 22c are compact multi connector converters for mobile and high end wo
10. ca 301 1002 17 Product Name Model Numbers North America 301 1002 08 301 1016 08 Product Name Model Numbers North America 301 1002 14 Product Name Model Numbers North America 301 1004 21 Edgeport 1 International 301 1001 11 301 1001 15 301 1001 21 301 1001 22 Edgeport 2 International 301 1000 02 301 1000 03 301 1000 80 Edgeport 4 International 301 1000 04 301 1000 8 1 301 1016 01 Edgeport 4r International 301 1002 17 Edgeport 8 International 301 1002 08 301 1016 08 Edgeport 8r International 301 1002 14 Edgeport 421 International 301 2004 21 Product Name Model Numbers North America 301 1000 21 Product Name Model Numbers North America 301 1042 01 Product Name Model Numbers North America 301 1016 16 301 1000 10 Product Name Model Numbers North America 301 1003 10 Edgeport 21 International 301 1000 21 Edgeport 42 International 301 2042 01 Edgeport 416 International 301 2016 16 301 2000 10 Edgeport 2c International 301 1003 10 Product Name Edgeport 21c Model Numbers North America International 301 1003 20 301 1003 20 Product Name Edgeport 22c Model Numbers North America International 301 1003 30 301 1003 30 Product Options All conforms to the relevant EU Directives listed here EMC Directive 2004 108 EC Low Voltage Directive 2006 95 EC R amp TTE 1999 5 EC using the relevant section of the
11. de 90000403 Rev J Page 11 Low Latency 930 based Edgeport only Normally the UART will interrupt when the receiver has been idle for 4 character times For example 4ms at 9600 As long as data 1s being received the UART will continue to buffer them until its internal FIFO is full 56 bytes This flag causes the Edgeport to poll the RX FIFO for received bytes If any bytes are available they will be sent to the driver without any delay Remap Baud All operating systems 930 and TI based Edgeport Setting the baud rate to 1200 baud will result in 230400 baud Ignore Flush Windows NT 2K XP 930 and TI If an application sends IRP MJ FLUSH BUFFERS it will be ignored Excerpt from Microsoft documentation Drivers of devices with internal caches for data and drivers that maintain internal buffers for data must handle this request When Sent Receipt of a flush request indicates that the driver should flush the device s cache or its internal buffer or possibly should discard the data in its internal buffer Operation The driver transfers any data currently cached in the device or held in the driver s internal buffer s before completing the flush request The driver of an input only device that buffers data internally might simply discard the currently buffered device data before completing the flush IRP depending on the nature of its device Fast Writes All operating systems 930 and TI based Edgeport When an applica
12. e Digi logo Edgeport and Hubport are either trademarks or registered trademarks of Digi International Inc in the United States and or other countries All other trademarks are the property of their respective holders Information in this documentation is subject to change without notice and does not represent a commitment on the part of Digi International Digi International provides this document as IS without warranty of any kind either expressed or implied including but not limited to the particular purpose Digi International may make improvements and or changes to this documentation or to the product s and or program s described in this documentation at any time Digi International assumes no responsibility of any errors technical inaccuracies or typographical errors that may appear in this documentation nor liability for any damages arising out of its use Changes are made periodically to the information herein these changes may be incorporated in new editions of the publication For U S Government use Any provision of this document and associated computer programs to the U S Government is with Restricted Rights Use duplication or disclosure by the government is subject to the restrictions set forth in subparagraph c 1 1 of the Rights in Technical Data and Computer Software clause of DFARS 52 277 7013 For non U S Government use These programs are supplied under a license They ma
13. ected to the internet the latest Microsoft certified drivers will be automatically downloaded from the Microsoft driver update server If not continue with step 3 Insert the Edgeport Driver CD into your CD ROM drive In most cases the drivers will be automatically installed from the CD If not proceed with step 4 When the Found New Hardware Wizard appears select Install from a list or specific location Advanced and click Next Select Search for a suitable driver for my device and click Next Select Specify a location and click Next Type in lt CD drive letter gt drivers and click OK Confirm that Windows is pointing to lt CD drive letter gt drivers Then click Next Wait while Windows finishes installing the driver files and click Finish to complete the installation Your new COM port s numbered sequentially following the existing ports in your system is are ready Edgeport Installation Guide 90000403 Rev J Page 7 The System Status Light For All Edgeports except the Edgeport 1 Red This light signifies a loss of USB communication with the host If the loss is due to unplugging the unit when it is reconnected the light will blink red a few moments before turning green Otherwise the light indicates a problem with the drivers which may need to be reinstalled The red light will also blink during installation until the installation is complete Amber This light signifies serial port activity on the Edgepor
14. er requirements to the operating system which then enables and disables the device as a function of its power requirements and the amount of available power High powered devices typically need to be connected to a self powered hub such as the Hubport which obtains power from its external power supply and provides up to 300 mA for each downstream port Only low powered devices such as a mouse can be connected to a bus powered hub which obtains power from its upstream host and provides up to 100 mA for each downstream port Due to the limited available power for bus powered hubs cascading two bus powered hubs is an illegal topology and devices connected to the second hub will not function USB specifications limit the connection of a bus powered hub to a self powered hub or host only Since Edgeport 421 Edgeport 42 Edgeport 42 and Edgeport 416 operate as self powered hubs they are not affected by this limitation According to the USB Specification the maximum limit of hubs cascaded in series cannot exceed five In other words you may have a maximum of five hubs between any device and the host This does NOT mean that the maximum number of hubs in a system is five Indeed up to seven hubs can be connected parallel at any given level You must tally both external and embedded hubs when counting downstream hubs Edgeport Installation Guide 90000403 Rev J Page 16 Regulatory amp Other Information O 2006 Digi Digi International th
15. he power for HubPorts with USB PlusPower ports USB Power Management i Press the ON OFF buttons nest to each port below to toggle the USB Power om and off The LEDs below will ight up when the USB Power is tured on and will turn off when the power is turned off Power Management Port 0524444300 Status Q g g Q Port 1 ON Port 2 OM Ports OFF Portd OFF Edgeport Installation Guide 90000403 Rev J Page 13 e Port Status Provide the status of a selected highlighted serial port Status COMA Port Open Hd Edageport 5440533000 COM 4 E wit ATS CTS OTR OSA LA Al Start Lagging if Tx Total Ax Total SE ES256 68320 Tx CPS Fig CPS 22169 22182 Errorz Breaks Oweruns Panty Framin 0 0 1 0 Status COM6 Port Closed my yx Edgeport d 54501004391 COME RTS CTS GTR OSA LA Al Start Logging Ts Total Ax Total EG o f 0 1 Fi Tx CPS Rx CPS poa oOo gt Errorz Breaks Dveruns Part Framin O O O O The Poll Interval is the number of seconds between updates of this window This is also the number of seconds between each entry in the log file To create a log file click the Start Logging button and enter a filename for the log file This file will contain all of the information displayed in the Port Status window until the Stop Logging button is clicked e Refre
16. hielded interface cable to this equipment will invalidate the FCC Certification for this device FCC Regulation Part 15 Declaration of Conformity DoC This device complies with the requirements of the Code of Federal Regulations listed below FCC Title 47 CFR Part 15 Class B for a digital device Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation Department of Communication DOC Notice Canada onl This Class B digital apparatus meets the requirements of the Canadian Interference Causing Equipment Regulations Edgeport Installation Guide 90000403 Rev J Page 17 Cet appareil num rique de la Classe B respecte toutes les exigences du Reglement sur le mat riel brouiller du Canada European Community CE Mark Declaration of Conformity DOC According to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Digi International Manufacturer s Addr 11001 Bren Road East Minnetonka MN 55343 declares that the product Product Name Model Numbers North America 301 1001 11 301 1001 15 301 1001 21 301 1001 22 Product Name Model Numbers North America 301 1000 02 301 1000 03 301 1000 80 Product Name Model Numbers North America 301 1000 04 301 1000 81 301 1016 01 Product Name Model Numbers North Ameri
17. ll the notification routine if some amount of data is available in the RX buffer but no new data has been received for 200ms receiver is no longer active We do not enable this behavior by default because of the nature of Edgeport buffering But if you set the flag we will complete the read when we detect 200 ms no activity Here is a comment from the code If the receiver is active then do not complete this read The problem is that the Edgeport buffers the RX bytes and we poll the driver If we do not receive any bytes in 200ms we may report an erroneous event even if there are available bytes in the Edgeport device or driver Edgeport Installation Guide 90000403 Rev J Page 12 e Test Ports Perform a confidence test on the internal workings of the serial ports Confidence Test oo The Confidence Test is designed to test the internal workings of the device This is done by transmitting and receiving data on the selected ports below Edgeport 4 03 07 000111 f Pot COM3 h Port COMA h Port COMS 4 Portd COME Select All Ports Deselect All Ports Begin Test Configure Test Parameter Baud Hate 115200 bi Flow Control KONO FF Use Digital Loopback Ie Loopback Plug wiring Diagrams Selecting this option tests the ports using an internal digital loopback sistem that does not require loopback plugs to be attached to the ports e Power Management Turn on and off t
18. rinter port and USB peripherals to a single USB upstream connector Cabling Edgeport Type A Type B The Edgeport 42 and Edgeport 421 operate as self powered hubs requiring a power supply to function For more information about hubs see Understanding Hubs on page 16 Connect one end of the power supply into the back of your Edgeport and the other end into an AC outlet The Edgeport 21 derives its power from the host machine through the USB cable and thus does not require a power supply To connect your Edgeport to a PC or Hub plug the Type A end of the USB cable into the USB port located in the back of your PC or into an available USB port on a standard hub or into a Digi Hubport Plug the Type B end of the USB cable into the back of the Edgeport To connect a USB device to your Edgeport plug the Type A end of the USB cable into one of the Edgeport 421 or Edgeport 42 USB Type A slots and the Type B end of the USB cable into the device Power to the Edgeport 421 may be supplied by a UL Listed Direct Plug In Power Unit or Information Technology Equipment 4 i Rated Power Unit rated 5 V dc at least 2 5 A if used in the U S and Canada or a power supply with similar rating and approved Lo by your local safety code if it is used elsewhere For polarity see diagram to the right Using the Printer Port For Windows XP Server 2003 Server 2008 and Vista The parallel port on your Edgeport 421 and Edgeport 21 supports only printers To
19. rkstation users who need to attach multiple serial RS 232 ports a printer port and USB peripherals to a single USB upstream connector Cabling Edgeport gt gt i Type A These Edgeports operate as bus powered hubs For more information about hubs see the section Understanding Hubs on page 16 To connect your Edgeport plug the USB cable with the Type plug into a USB port located on your PC or into an available USB port on a standard hub or into a Digi Hubport Installing the Printer Port For Windows XP Server 2003 Server 2008 and Vista The parallel port on your Edgeport 21c supports only printers To use your newly installed printer port 1 From the Start menu choose Settings and then Printers 2 Right click on the printer you wish to use on your new port and select Properties 3 In the Details tab click on the drop down list box under Print to the following port and choose USBLPTx or USB00x depending on OS then click OK Edgeport Installation Guide 90000403 Rev J Page 6 Edgeport Driver Installation For Windows XP Server 2003 Server 2008 and Vista Note You must be logged into an account with administrator privileges before proceeding Note Please go to www dig1 com to download software for older Operating Systems I AS EA 8 Connect the USB cable Refer to the Table of Contents to locate the cabling instructions for your specific Edgeport model If your computer is conn
20. sh Scan for ports Note that NT 4 0 does not automatically scan Version Tab The Version tab allows you to check the file information pertaining to the software Edgeport Installation Guide 90000403 Rev J Page 14 Advanced Tab The Advanced tab allows you to do the following e Uninstall Uninstall the drivers e Enable Event Logging Place event messages in system event log e COM Port Assignment Configure how COM ports will be assigned gt Edgeport Properties x General Version Advanced ARANING Pressing the Uninstall button will remove the Edgeport device drivers from your system Enable Event Logging COM Port Assignment Based on converter serial number Default C Based on physical USB port fou must reboot before these settings Wellies een can take effect z The driver supports COM port number assignment in two ways 1 Assign COM ports based on converter serial number This 1s the default setting In this mode the driver uses the serial number of each converter to uniquely identify it and the COM port assignments for a given converter are based on its serial number No matter which physical USB port a converter is plugged into it will maintain its assigned COM port numbers 2 Assign COM ports based on physical USB port In this mode the driver identifies a converter based on the physical USB port it is plugged into This effectively assigns COM port numbers
21. t The amber light may also flash briefly during installation Green This light indicates the serial ports are successfully set up and the Edgeport is operating normally Edgeport Installation Guide 90000403 Rev J Page 8 Mounting Diagrams For all Edgeport Products except Edgeport 416 Rack Mount Kit Under Shelf Mounting Bracket 4 e For Edgeport 416 Nuts bolts and screws are not included Edgeport Installation Guide 90000403 Rev J Page 9 The Edgeport Utility Program For All Windows Operating Systems The Edgeport configuration utility program edgeport exe allows you to manage the serial ports of your Edgeport product Note that with Windows NT you must have administrative privileges in order to change the COM port settings For more information see the Support section at www digi com General Tab The General tab in this utility allows you to do the following Edgeport Properties x General Version Advanced EET E dgeport SV501 Port COMS Portz COME Configure 004311 Information oo UW Port3 COM7 Fort Flags 4 Port COMS Test Ports Update Power Hat Port Statue Refresh FLENG e Information Check the manufacturing information pertaining to your device Information x Manufacturer Mame Digi International Device Name Edgeport4 Vendor ID 1608 Product ID 00 0 Seral Number 550100491 Identifier 5501 0043
22. tion sends a write to the driver by default the Edgeport driver will wait until all data has been transmitted out of the Edgeport device before completing the write When the Fast Writes flag is set we complete the write even if data is still buffered in the driver and the Edgeport device Fast Reads This flag is used when an application requires that a read complete immediately In the read immediate case the Edgeport driver will send a request to the Edgeport device asking for any buffered data to be sent up This buffered data will be included when the read completes If this flag is set the driver will not query the Edgeport device for additional data Disable Plug amp Play Windows 2k XP only Do not let the serial port enumerator detect devices plugged into the Edgeport Ignore Tx Purge The IOCTL SERIAL PURGE request cancels the specified requests and deletes data from the specified buffers The purge request can be used to cancel all read requests and write requests and to delete all data from the read buffer and the write buffer When the Ignore Tx Purge flag is set the SERIAL PURGE TXCLEAR command will be ignored The function will not purge the write buffer Timer Logic Windows 9x only If application uses PortSetReadCallBack the notification routine will only be called when the number of bytes in the receive buffer is greater then the RX trigger The Microsoft serial VxD also implements a timer that will trigger and ca
23. y be used disclosed and or copied only as supplied under such license agreement Any copy must contain the above copyright notice and restricted rights notice Use copying and or disclosure of the programs is strictly prohibited unless otherwise provided for in the license agreement Federal Communications Commission FCC Regulatory Information USA only 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 a residential installation This equipment generates uses and can radiate radio frequency 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 harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet that 1s On a circuit different from the receiver e Consult the dealer or an experienced radio TV technician for help Warning The connection of a non s
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