Quatech QS-100D Network Cables User Manual
Contents
1. CJ GUATECH OS 100D Four Channel RS 232 Asynchronous Communications Adapter for ISA compatible machines INTERFACE CARDS FOR IBM PC AT AND PS 2 User s Manual QUATECH INC TEL 330 655 9000 5675 Hudson Industrial Parkway FAX 330 655 9010 Hudson Ohio 44236 http www guatech com Warranty Information Ouatech Inc warrants the OS 100D to be free of defects for one 1 year from the date of purchase Quatech Inc will repair or replace any adapter that fails to perform under normal operating conditions and in accordance with the procedures outlined in this document during the warranty period Any damage that results from improper installation operation or general misuse voids all warranty rights The authors have taken due care in the preparation of this document and any associated software program s In no event will Quatech Inc be liable for damages of any kind incidental or consequential in regard to or arising out of the performance or form of the materials presented herein and in the program s accompanying this document No representation is made regarding the suitability of this product for any particular purpose Quatech Inc reserves the right to edit or append to this document or the product s to which it refers at any time and without notice Please complete the following information and retain for your records Have this information available when requesting warranty service Date of2. Replace the system cover according to the instructions provided by the computer manufacturer Attach and secure the cable connectors to the desired equipment QS 100D User s Manual 2 1 2 1 Setting the Base Address The base address of the OS 100D is set using the two DIP switch packs When setting the address selection switches a switch in the ON position specifies that the corresponding address line must be a logic 0 for the port to be selected Similarly a switch in the OFF position forces the corresponding address line to be a logic 1 for the port to be selected A full sixteen bit address decode is implemented to reduce the chance of address conflicts with other adapters in the system Each serial port on the QS 100D uses 8 consecutive I O locations The four ports reside in a contiguous block of I O space in eight byte increments for a total of 32 contiguous bytes as shown in Figure 4 PORT ADDRESS RANGE Serial 1 Base Address 0 to Base Address 7 Serial 2 Base Address 8 to Base Address 15 Serial 3 Base Address 16 to Base Address 23 Serial 4 Base Address 24 to Base Address 31 Figure 4 Port Address Map Switches SW1 and SW2 select address lines A15 through A5 The remaining address lines A4 A3 A2 Al and AO are used by the UART to select the register being accessed The sixth position on SW2 is used to enable or disable the interrupt status register See Figure 8 Fi
3. S 100D as shown in Figure 9 Individual bits are cleared as the interrupting ports are serviced The interrupt service routine must ensure that the interrupt status register reads zero before exiting or the OS 100D will be unable to signal subseguent interrupts If the OS 100D is of revision level C or higher an I O write to the interrupt status register will cause another hardware interrupt to be generated if the interrupt status register is non zero The value written is ignored and has no effect on the contents of the interrupt status register Software written to take advantage of this retriggering will be transparent to an older revision of the QS 100D BIT DESCRIPTION QS 100D User s Manual 2 5 7 MSB 0 not used 0 not used 0 not used 0 not used Serial 4 1 if interrupt pending Serial 3 1 if interrupt pending Serial 2 1 if interrupt pending OJIN wT AJJI a Serial 1 1 if interrupt pending Figure 9 Interrupt Status Register contents Quatech Inc 3 Windows 95 Configuration Windows 95 maintains a registry of all known hardware installed in your computer Inside this hardware registry Windows 95 keeps track of all of your system resources such as I O locations IRQ levels and DMA channels The Add New Hardware Wizard utility in Windows 95 was designed to add new hardware and update this registry An INF configuration file
4. atech Inc 12 You are required to manually configure the QS 100D to match the resources allocated by Windows 95 Another option is to use the Device Manager in Windows 95 to change the system resources allocated in Windows 95 to match your preferences See chapter 2 for information on installing and configuring the OS 100D 3 2 Viewing and Changing Resources with Device Manager The following instructions provide step by step instructions on viewing and changing resources of the QS 100D in Windows 95 using the Device Manager utility Select Start Help from within Windows 95 for additional information on this utility l Double click the System icon inside the Control Panel folder This opens up the System Properties box Click the Device Manager tab located along the top of the System Properties box This lists all hardware devices registered inside the Windows 95 registry Additional information is available on any of these devices by click on the device name and then selecting the Properties button Double click the device group Multi function Adapters The QS 100D model name should appear in the list of Multi function adapters Double click the QS 100D model name and a properties box should open for the hardware adapter Click the Resources tab located along the top of the properties box Confirm that the resources Windows 95 has allocated for the OS 100D match the hardware configura
5. ds to which Conformity is Declared Type of Equipment Equipment Class Product Name Model Number Quatech Inc 5675 Hudson Industrial Parkway Hudson Ohio 44236 USA 89 336 EEC EN50081 1 EN55022 EN60555 2 EN60555 3 EN50082 1 IEC 801 2 IEC 801 3 amp IEC 801 4 Information Technology Equipment Commercial Residential amp Light Industrial ISA Communications Card OS 100D S 750 IND OS 100D User s Manual iii Table of Contents 1 General Information 0 0 00 c cece eee eee 1 1 1 1 Explanation of Packages 4 5 0025553 AS NA ie betes 1 1 2 Hardware Installation 000 c cece eee 2 1 2 1 Setting the Base Address 0 23065 ve tb 84a eG ye an 2 2 2 2 Setting the Interrupt Level IRQ 0 0 cece eee eee 2 4 2 3 Configuring Interrupt Sharing 0 0 0 2 4 2 4 Interrupt Status Register an ni Ka EME O64 emt NUN nee dd 2 5 3 Windows 95 Configuration oo 3 1 3 1 Using the Add New Hardware Wizard arerin ed as ea rate E Tai te a tok rt Gre ELE BB 3 1 3 2 Viewing and Changing Resources with Device Manager Ao vis Rd ENAK SA ea ee ak 3 3 4 External Connections kk 4 1 5 Specifications 2172 02 See Herne SE BEN Nun 5 1 6 Troubleshooting kk 6 1 iv Ouatech Inc 1 General Information The Quatech Inc QS 100D provides four RS 232 asynchronous serial communication interfaces for IBM compatible personal com
6. egistry Windows 95 has assigned these resources to the QS 100D Review these settings carefully before proceeding You should either take notes of these resources being allocated to your new hardware or have Windows 95 print a copy You are required to manually configure the QS 100D to match these resources Windows 95 will not automatically configure a QS 100D board The Add New Hardware utility now asks for your Windows 95 installation disks Serial communication ports require two drivers supplied by Microsoft to function SERIAL VXD and SERIALUI DLL Insert the disk or CD and click OK NOTE You may be able to skip this step if you are certain that your system has the latest version of these files installed If you do not have your Windows 95 install disks immediately available click OK anyway A dialog box appears with an option to Skip the files Click the Skip button and the files will not be installed This is all right if the latest version of these drivers are currently in the SYSTEM directory Another dialog box will open to tell you that the installation is complete Click the Finish button to end the software part of the installation Windows 95 now instructs you to shut down your computer and install the hardware Click Yes to shut down your computer Wait until Windows 95 informs you that it is safe to turn your computer off When this message appears power down your computer 3 2 Qu
7. gure 5 shows how the switches on the QS 100D represent the address values for serial ports This figure can be used to explain the examples shown in Figure 5 2 2 Quatech Inc A serial port s address is a 16 bit quantity that is most often expressed in four hexadecimal base 16 digits A hex digit can hold a value from 0 to 15 decimal and is made up of four binary bits given weights of eight four two and one hence the maximum value of 8 4 2 1 15 A possible serial port address is 5220 hex The example below shows how the hex digits are broken down into binary bits Binary bits 0101 0010 0010 0000 Bit weight 8421 8421 8421 8421 Sum of bits 0 4 04 1 0404240 0 0 2 0 0404040 Hex digits 5 2 2 0 These address bits are set by the switches All other bits are considered to be zero 0101 0010 0010 0000 Figure 5 Examination of a serial port base address Switch on Switch off A4 AO are zero for the base address bit 0 bit Position 6 of SW2 is used to enable or disable the interrupt status register Factory default setting 0300 hex SW1 SW2 Another Example 54A0 hex Swi SW2 no digits 5 4 A 0 Figure 5 Serial Port base I O address selection switches QS 100D U
8. is included with the QS 100D to allow easy configuration in the Windows 95 environment Also a custom Windows 95 serial device driver is included with the QS 100D to support the use of the 16750 UART s 64 byte fifo Windows 95 uses the INF file to determine the system resources required by the QS 100D searches for available resources to fill the boards requirements and then updates the hardware registry with an entry that allocates these resources Windows 95 will not automatically configure the QS 100D The user is required to manually configure the hardware to match the resources that Windows 95 allocates to the QS 100D Another option is to use the Device Manager in Windows 95 to change the system resources allocated to match the configuration of the hardware See section 3 2 for information on changing resources within Windows 95 31 Using the Add New Hardware Wizard The following instructions provide step by step instructions on installing the QS 100D in Windows 95 using the Add New Hardware wizard Select Start Help from within Windows 95 for additional information on this utility 1 Start the Add New Hardware Wizard utility The icon for this utility is located in the Windows 95 control panel 2 A dialog box should appear explaining about Add New Hardware Wizard utility Click the Next button to continue 3 An option box appears providing the choice of having Windows 95 automatically detect you
9. nals on a D 25 connector TxD and RxD pins 2 and 3 RTS and CTS pins 4 and 5 DCD DTR DSR and RI pins 8 20 6 and 22 Sample Code and a detailed description of the QS 100D s UARTs is available on Quatech s BBS 330 434 2481 QS 100D User s Manual 6 1 This Page Intentionally Left Blank 6 2 Quatech Inc OS 100D User s Manual Revision 3 11 March 2004 P N 940 0022 311
10. ndard locations The QS 100D ports will be enumerated starting with COMS or higher even if lower logical numbers are available Select any of the Quatech Serial Ports listed under the group Port Com and LPT and click the Properties button This action opens a properties dialog for the specific COM port on the QS 100D Click the Port Settings tab and then click the Advanced button The QS 100D driver will display a custom Advanced Port Settings control Quatech Inc which allows the ports UART compatibility mode and FIFO levels to be configured Note that FIFO option for each of the four ports OS 100D ports is configured independently Advanced Port Settings TA a Figure 11 Windows 95 Device Manager 10 Use the Logical COM Ports numbers to access the serial ports on your QS 100D through your software applications Note The Logical COM Port name is assigned to your ports by Windows 95 This name is required by a Windows 95 application when accessing a particular port QS 100D User s Manual 3 5 This Page Intentionally Left Blank 3 6 Quatech Inc 4 External Connections RS 232 C devices are classified by their function as either Data Terminal Eguipment DTE or Data Communication Eguipment DCE Generally data terminal eguipment is defined as the communication source and data communication eguipment is defined as the device that provides a communication channel between
11. nections are listed in Figure 14 RS 232 Signal Serial 1 Serial 2 serial 3 serial 4 Description 537 p 25 p 37 D 25 D 37 D 25 D 37 D 25 TxD ay il a Tag a as ae oa RxD 5 3 T2 ee ae le ee ira RTS 23 4 9 4 fie ES NET 4 CTS 4 sizl ee 3l 5 DTR 2 2 7 20 30 22 16 2 DSR 2 6 8 6 i 3a KAK DCD 2 s Tz s un Tania RI 2 hi San le one Sar li ane ea NT pa GND 3 Rar ena Ul BSA Figure 14 OS 100D connector definitions 06 S 09 O 0a 0a e Oo 2 20 O 6 O connector It Nela Lis Tasnad ines enesto chanel Figure 15 QS 100D output connectors 4 2 Quatech Inc 5 Specifications Bus interface Dimensions Serial ports Controller Interface Transmit drivers High level output Low level output Switching speed Receive buffers High level input Low level input Switching speed Industry Standard Architecture ISA 16 bit bus IBM PC AT M compatible 6 65 x 3 7 16550 16750 optional One female D 37 connector Four male D 25 connectors using adapter cable MC1488 or compatible 9V min 10 5V max 9V min 10 5V max 55ns typ 100ns max MC1489 or compatible 3V to 13V 3V to 13V 120ns typ 175ns max I O Address range 0000H FFFFH Interrupt levels Power reguirements 5 volts 12 volt
12. ort reguires service Because the ISA bus is edge sensitive this behavior forces the interrupt service routine to ensure that all ports are checked before exiting A way to do this is to poll each port until an interrupting port is found After servicing the port all ports should be checked again If any interrupting port is left unserviced the OS 100D will be unable to signal any further interrupts 24 Interrupt Status Register The OS 100D is eguipped with an interrupt status register which can be used to simplify the servicing of shared interrupts If this feature is enabled the interrupt status register is accessed in place of the scratchpad of any given UART at base address 7 Virtually no commercially available software makes use of the scratchpad register The interrupt status register is read only The choice of using the interrupt status register or the UART scratchpads factory default is made using position 6 of switch SW2 as shown in Figure 8 SW2 SW2 Interrupt Status Register Scratchpad Register factory default Slide position 6 of SW2 toward the top of the QS 100D to enable the interrupt status register or toward the bottom of the QS 100D to disable it Figure 8 Enabling the Interrupt Status Register When a hardware interrupt occurs reading the interrupt status register will return the interrupt status of the entire Q
13. pport a UART operating in 16750 mode in which case the default operation will be 16550 compatible mode 1 2 Quatech Inc D 37 female short z a MB IMB 1 ENY ZNU Cs 100D Diagram of QS Figure 2 1 3 QS 100D User s Manual This Page Intentionally Left Blank 1 4 Quatech Inc 2 Hardware Installation If the default address and interrupt settings are sufficient the OS 100D can be quickly installed and put to use The factory defaults are listed in Figure 3 PORT ADDRESS IRQ Serial 1 300 hex 3 Serial 2 308 hex 3 Serial 3 310 hex 3 Serial 4 318 hex 3 Figure 3 Default address and IRQ settings for QS 100D The output of the QS 100D is a 37 pin D connector labeled CN1 A cable is provided to convert the D 37 into four standard male D 25 connectors with all control signals provided to each port RTS DTR CTS DSR DCD and RI l If the default settings are correct skip to step 2 otherwise refer to sections 2 1 and 2 2 of this document for detailed information on how to set the address and IRQ level Turn off the power of the computer system in which the QS 100D is to be installed Remove the system cover according to the instructions provided by the computer manufacturer Install the QS 100D in any vacant expansion slot The board should be secured by installing the Option Retaining Bracket ORB screw
14. purchase Model Number QS 100D Product Description Four Channel Asynchronous RS 232 Communications ISA Adapter Serial Number QS 100D User s Manual i 1993 Quatech Inc NOTICE The information contained in this document cannot be reproduced in any form without the written consent of Quatech Inc Likewise any software programs that might accompany this document can be used only in accordance with any license agreement s between the purchaser and Quatech Inc Quatech Inc reserves the right to change this documentation or the product to which it refers at any time and without notice The authors have taken due care in the preparation of this document and every attempt has been made to ensure its accuracy and completeness In no event will Quatech Inc be liable for damages of any kind incidental or consequential in regard to or arising out of the performance or form of the materials presented in this document or any software programs that might accompany this document Quatech Inc encourages feedback about this document Please send any written comments to the Technical Support department at the address listed on the cover page of this document IBM PC PC AT PS 2 and Micro Channel are trademarks of International Business Machines Corporation ii Ouatech Inc CE Declaration of Conformity Manufacturer s Name Manufacturer s Address Application of Council Directive Standar
15. puter systems using the 16 bit ISA Industry Standard Architecture expansion bus The QS 100D is highly flexible with respect to addressing and interrupt level use The serial ports are addressed in a contiguous block that can be placed anywhere within the range of 0000 hex to FFFF hex and available interrupt levels include IRO2 to IRQ7 IRQ10 to IRQ12 IRO14 or IRO15 Early versions of the QS 100D are limited to IRQ2 7 All four ports on the QS 100D can share one interrupt level A special interrupt status register is provided to allow controlling software to manage the shared interrupt level The shared interrupt feature minimizes the system resources consumed by the adapter In order to support the use of the shared interrupt feature of the QS 100D Quatech has developed device drivers for several popular operating systems and environments The sales department can be contacted for details on current offerings Note References to the QS 100D throughout this manual apply to the following products PRODUCT IND PACKAGE UART UPGRADE QS 100DS QS 100IND QS 100D750 QS 100IND750 Figure 1 QS 100D Product Series Summary 1 1 Explanation of Packages The base four port RS 232 asynchronous communications adapter is the QS 100DS This product inplements each of its four communication channels with a 16550 UART Signal Transmission and Reception is accomplished using standard line driver and receiver components For improved pe
16. r new hardware Click the No option The dialog in the box recommends selecting the Yes option but unless the hardware is installed at some standard I O and IRQ levels this option will fail Click the Next button to continue 4 A hardware types list box should appear Find the Multi function Adapters type on the list and click it Click the Next button to continue QS 100D User s Manual 3 1 10 11 A list box opens with Manufacturers on the left and the associated board Models on the right Click the Have Disk button An Install From Disk dialog box should pop up Insert the diskette with the Quatech INF files on it select the correct drive letter and click the OK button Windows 95 automatically browses the root directory for an INF file that defines configurations for Multi function Adapters If no INF files are found click the Browse button and search the Win95 sub directory on the installation diskette You are not reguired to select the file name After finding the directory containing the INF files Windows 95 will choose the correct file Your computer should read the INF file on the diskette and display a list of Quatech Multi function Adapter models supported by Windows 95 Select the OS 100D Model Name from the list and click the Next button to continue A dialog box will appear with an unused I O range and IRQ resources that Windows 95 has found available in the r
17. rformance and reliability Quatech offers the following board upgrades QS 100D User s Manual 1 1 1 1 1 IND Package The IND upgrade on the OS 100IND and OS 100IND750 boards provides the protection essential for reliable use in an industrial environment Special line drivers and receivers are used which have 15kV ESD Electro Static Discharge protection and each communication line has a surge suppressor capable of sustaining up to 40A transient surges at 14V 1 1 2 UART Upgrade The UART upgrade on the QS 100D750 and QS 100IND750 boards provides a 16750 UART in place of the 16550 UART found on the standard QS 100D The UART Universal Asynchronous Transmiter and Receiver takes byte size data from the bus side of board and breaks it into the bit size data required for serial communication Benefits of the 16750 UART include extended 64 byte FIFOs on transmit and receive and the ability to sustain transfer rates as high as 1 Mbaud acheiving this rate is dependent upon the user s system and the board s oscillator frequency The increased FIFO size allows the 16750 UART to store larger amounts data which means that each read or write access to the UART can move more data per operation resulting in less processor time being spent servicing the UART The Quatech serial device driver for Windows 95 which is included with the QS 100D provides support for the UART s 16750 mode Other applications and or operating systems may not su
18. s 12 volts IRO2 to IRO7 IRO10 to IRO12 IRO14 IRO15 382 mA typ 438 mA max 57 mA typ 67 mA max 54 mA typ 63 mA max QS 100D User s Manual 5 1 This Page Intentionally Left Blank 5 2 Quatech Inc 6 Troubleshooting Listed here are some common problems and freguent causes of those problems Suggestions for corrective action are given If the information here does not provide a solution contact Quatech Customer Service for technical support Any unauthorized repairs or modifications will void the OS 100D s warranty Computer will not boot up 1 Is the QS 100D properly inserted Remove the card and try again Perhaps try a different expansion slot 2 Is the base address correctly set Check for address conflicts with other devices in the system Remember that the QS 100D requires 32 bytes of I O space Set a different address if necessary 3 The QS 100D may be defective Contact Quatech Customer Service for instructions Cannot communicate with other equipment 1 Are the cable connections correct Are the cables securely attached 2 Are the base address and interrupt level IRQ correctly set Check for address and IRQ conflicts with other devices in the system Change the settings if necessary 3 Ifyou are trying to communicate with a DTE a null modem cable may be required 4 If possible use a loopback connector to test the port This connector needs to connect the following sets of sig
19. ser s Manual 2 3 2 2 Setting the Interrupt Level IRQ The QS 100D allows the use of any interrupt level in the range IRQ2 to IRQ7 IRO10 to IRQ12 IRO14 or IRQ15 selected using jumper pack J6 Early versions of the QS 100D are limited to IRQ2 7 In Figure 6 the factory default setting of IRQ3 is shown To select a different IRQ move the jumper to the appropriate position on J6 N SI LD LO N Kg ae O O O O O O O rere x Xx x Xx 15 16 17 20 21 22 18 19 OOOOO QOOO 7 8 9 10 oO Os IRQ4 Q OBR IRQ ELN 00 200 J6 Default is IRQ 3 Figure 6 Interrupt level IRQ selection 2 3 Configuring Interrupt Sharing All ports on the QS 100D share the same interrupt level Jumper J7 can be used to connect the UART generated interrupt directly to the selected IRQ J7 can also be used to enable an interrupt sharing circuit allowing the QS 100D to share its interrupt with another Quatech adapter supporting sharable interrupts In either case the software driving the serial ports must determine which port or ports are requesting service when an interrupt is generated To maintain 100 ISA bus compatibility J7 should be set in the non sharable mode O 3 non sharable sharable J7 Default is Sharable Figure 7 Sharable interrupt selection 2 4 Quatech Inc The OS 100D signals a hardware interrupt when any port reguires service The interrupt signal is maintained until no p
20. tion To modify any of the resource settings click the resource name and click the Change Setting button Click Cancel to exit without making changes OS 100D User s Manual 3 3 System Properties 2 x General Device Manager Hardware Profiles Performance View devices by type C View devices by connection amp Hard disk controllers ga Keyboard Modem Monitor 23 Mouse lt gt Multi function adapters lt QS 100D 4 RS 232 Ports ES Network adapters Bp PCMCIA socket a7 Ports COM amp LPT 3 Communications Port COM1 3 Quatech Serial Port COM5 aF Guatech Serial Port COMB a7 Quatech Serial Port COM aF Quatech Serial Port COM8 GA AH m System devices Figure 10 Windows 95 Device Manager If the Change Settings button was selected an Edit Resource window will open up Inside these Edit Resource windows click on the up down arrows to the right of the resource value This scrolls you through all of the allowable resources for your hardware Pay attention to the Conflict Information at the bottom of the window Do not select a resource that causes a conflict with any other installed hardware Click OK to save your changes or Cancel to abort The QS 100D serial ports are also listed under the group Ports Com and LPT Windows 95 does not assign COMI COM4 to ports addressed at nonsta
21. two DTE type devices Terminal Modem RS 232 C DTE DCE Telephone line Terminal Modem RS 232 C DTE DCE Figure 12 Use of DTEs and DCEs in a communications link DTE and DCE type devices have complementary pinouts to allow terminals and modems to be connected directly using a one to one cable as shown in Figure 13 In many applications DCEs are unnecessary and in these cases a cable called a null modem cable or modem eliminator cable is used to directly connect two DTE type devices A typical null modem cable is also shown in Figure 13 3 RxD TxD 3 3 RxD KK RxD 2 TxD RxD 2 2 TxD TxD 4 RTS _________ CTS 4 4 RTS RTS i 5 cCTSs RFS 5 5 CTS aa CTS z 20 DTR DSR 20 20 DTR E DTR 20 6 DSR DTR 6 6 DSR DSR 6 8 DCD _____ DCD 8 8 DCD ________ DCD 8 2 R ___RI__ 22 2 RI RI 22 7 GND END 7 7 GND GND 7 Typical DTE to DCE cable Typical DTE to DTE null modem cable Figure 13 Cabling requirements for RS 232 C devices cables using 25 pin connectors shown QS 100D User s Manual 4 1 The OS 100D connects to peripheral eguipment through a single female D 37 connector or using the adapter cable four male D 25 connectors The standard serial port con
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