RS-232 and RS-422 Serial Interfaces | Compaq P5000 Series manual

Chapter 5 RS-232 and RS-422 Serial Interfaces

RS-232 and RS-422 Serial Interfaces

NOTE: The RS-232 and RS-422 serial interface circuit characteristics are compatible with the Electronic Industry Association Specifications EIA®-232-E and EIA-422-B.

The RS-232 and RS-422 serial interfaces enable the printer to operate with bit serial devices that are compatible with an RS-232 controller. The input serial data transfer rate (in baud) is selectable from the printer control panel. Baud rates of 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115K are available. The default is 9600.

NOTE: If you select a baud rate that is 19200 or greater, you may need to increase the Buffer Size in K parameter from the default (8 Kbyte), to improve performance.

The input format consists of a single start bit, 7 or 8 data bits, and one or two stop bits. The number of data bits is determined by printer configuration. The data bits are interpreted with the least significant bit first. Parity checking is determined by printer configuration options selected from the control panel.

The printer interface uses a first-in/first-out buffer. The asynchronous interface accepts data as it is provided by the host. The length of the data cable from the host computer to the printer must not exceed 50 feet (15 meters) for RS-232 or 4000 feet (1220 meters) for RS-422. A copper conductor, twisted-pair telephone cable with a shunt capacitance of 16 pF/ foot (52.5 pF/meter) terminated in a 100 ohm resistive load must be used for the RS-422.

Table 15. RS-232 Serial Interface Connector Pin Assignments

	Input Signals		Output Signals		Miscellaneous
	Signal	Pin	Signal	Pin	Signal	Pin
	Signal	Pin	Signal	Pin	Signal	Pin


	Receive Data (RD)	3	Transmit Data (TD)	2	Chassis Ground	1
	Clear To Send (CTS)	5	Request To Send (RTS)	4	Signal Ground	7
	Data Set Ready (DSR)	6	Data Terminal Ready (DTR)	20
	Data Carrier Detect (DCD)	8

Table 16. RS-422 Serial Interface Connector Pin Assignments

	Input Signals		Output Signals		Miscellaneous
	Signal	Pin	Signal	Pin	Signal	Pin
	Signal	Pin	Signal	Pin	Signal	Pin


	- Receive Data (-RD)	15	- Transmit Data (-TD)	19	Chassis Ground	1
	+ Receive Data (+RD)	17	+ Transmit Data (+TD)	25	Signal Ground	7

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Compaq P5000 Series setup guide RS-232 and RS-422 Serial Interfaces

Contents

Setup Guide Page Printronix P5000 series with DEC LG Emulation Trademark Acknowledgments Trademark Acknowledgments Table of Contents Configuring the Printer Table of Contents Interfaces Standard Ascii Character Set Printing Conventions in This Guide About This GuideRelated Documents P5000 series with DEC LG Emulation P5000 series with DEC LG Emulation Printer FamilyDEC LG Emulation Model Number Print Speed Pedestal Cabinet Host Computer Interfaces Printer EmulationsPrinter Emulations DEC LG Emulation Printers Taking Care of Your Printer LinePrinter Plus FeaturesGraphics Enhancement Option Output Control Protocols and Emulations Built-in Diagnostic ToolsGraphics and Vertical Formatting Line Matrix Printing Line Matrix Printing Printing Speed Before You Begin Power RequirementsSelect a Site Before You Begin Interface Connections Interface Type Maximum Cable Length Pedestal Model Dimensions Select a Site Printer Component Locations Component Locations Remove the Cardboard Packing Remove the Shipping Restraints Cabinet ModelRemove the Cardboard Packing Remove the Hammer Bank Protective Foam and Foam Strips Remove the Shipping Restraints Cabinet Model Remove the Platen Protective Foam Remove the Platen Protective Foam Adjust the Paper Supports Adjusting Paper Supports Release the Paper Chains Release the Paper Chains Remove the Tags Remove Tag and Tie Wrap from Fence or Passive Paper Stacker Attach the Control Panel Overlays Remove the Shipping Restraints Pedestal ModelAttach the Control Panel Overlays Remove the Hammer Bank Protective Foam Remove the Shipping Restraints Pedestal Model Removing Platen Protective Foam Adjust the Paper Supports Remove Tag Remove Tag Attach the Output Basket Attaching the Output Basket Attaching Control Panel Overlays Connect the Interface and Power Cables Install Basic ComponentsInstall Basic Components Connect the Interface and Power Cables Interface and Power Locations Install the Ribbon Ribbon Path Diagram Location Install the Ribbon Forms Thickness Lever Ribbon Path Left Ribbon Hub Load the Paper Forms Thickness Lever and Tractor Doors Load the Paper Paper Slot Location Paper Scale Horizontal Adjustment Knob Power On the Printer Power Switch Set the Top-of-Form Set the Top-of-Form Raising the Forms Thickness Lever Lowering the Forms Thickness Lever Printer Test Procedure Step Key Result Test the Printer Configuring the Printer Overview Configuration Menu Overview Clear Default and Custom Configurations Changing and Saving Parameter SettingsChanging and Saving Parameter Settings Operating Modes Control Panels Unlocking and Locking the Enter Key Factory Default Configuration ValuesUnlocking and Locking the Enter Key Maint / Misc Example Parameter Change Example Procedure Step Key ResultChanging Parameters Example To USE the Current Configuration Without Saving Saving Your New Configuration Saving Your New Configuration Changing Parameters Saving Configurations Step Key Result Deleting Your Configuration Deleting Your Configuration Changing Parameters Deleting Configurations Step Key Result Printing the Current Configuration Protecting Your ConfigurationsProtecting Your Configurations Press until the desired option displays Loading Configuration Values Loading Configuration Values Displays for about a second Power-Up Configuration Power-Up Configuration Printer has selected Configuration Menus Configuration Main Menu MAINT/MISC Configuration Main Menu DTR CONFIG. Control Load ConfigMenu Delete Config Save ConfigPrint Config Power-Up Config Active Emulation Active Emulation Emulation Digital LG Submenu Horiz. Forms FontVert. Forms Submenu LF Line Feed AutowrapCR Carriage Return Unsolicited Rpt Plot Mode Opt Print Mode Opt5 Guard Bars LinePrinter+ LinePrinter+ CPI/LPI Select Printer ProtocolPrint Char Set Font Attributes Italic Print Proportional SpacingBold Print Slashed Zero Perforation Skip FormatMargins Forms Length Define CR Code Proprinter XL EmulationAuto LF Character Set Define LF CodeFF Valid at TOF Alternate Char Set Epson FX Emulation Ascii USA Alternate Set 80-9F Printer SelectEpson FX Emulation Series Emulation Series Overstrike Control CodeSeries Emulation Evfu Select Sfcc d CommandSelect Sfcc Alt. Set 80-9F IGP/PGL Emulation PI Slew Range Define CR Code Carriage ReturnDefine LF Code Line Feed IGP/PGL Emulation Select LPI CR EditSelect Font Auto Uppercase Extended Execute Copy Skip Command PrefixPower On IGP/PGL UPC Descenders IGP100 Compatbl Ignore ModeIgnore Character Optimized Ratio IGP/VGL Emulation IGP/VGL Emulation Power Up Sfcc & Pwrup Graphics Options UPC Descenders Submenu True Vert 1/10Absorb after PY Rot. Char Size Width Limit Height Max. Width IGP/VGL Emulation Dark BarcodeWidth Limit Allowed Error Handling Ignore ch#1 Ignore / DB8 SetupIgnore Chars Ignore ch#2 Printer PI Font SetPI Control Host PI Display Language Hex Dump ModePower-Up State Maint / Misc Host Interface Data Protocol Serial SubmenuInterface Type Host Interface Stop Bits Baud RateWord Length Parity Request to Send Data Terminal ReadyBuffer Size in K Data Bit Parallel SubmenuCentronics Interface Data Polarity Response Polarity Prime SignalStrobe Polarity Busy on Strobe Dataproducts Submenu PI Ignored Data Request Polarity Bidirectional Submenu Unidirectional Printer Control Power Saver Time PMD Paper Motion Detection FaultSlow Paper Slew Diagnostics Printer Tests Paper Out Dots Test WidthSystem Memory Print Statistics New Ribbon Ribbon Action Ribbon Size Ribbon AdjustFault Action Ribbonminder Interfaces Dataproducts Parallel Interface Dataproducts Parallel Interface SignalsDataproducts Parallel Interface Dataproducts Parallel Interface Configuration Dataproducts Parallel Interface Configuration Centronics Parallel Interface Centronics Interface SignalsCentronics Parallel Interface Centronics Parallel Interface Configuration Centronics Parallel Interface Configuration Terminating Resistor Configurations Terminating Resistor Configurations Removal and Installation Removal and Installation Byte Mode Compatibility ModeNibble Mode Ieee 1284 Parallel Interface Signals Negotiation PhaseNegotiation Phase Page Signals Type of Mode Pin Source of Data Compatible RS-232 and RS-422 Serial Interfaces RS-232 and RS-422 Serial Interfaces RS-232 and RS-422 Serial Interface Protocol RS-232 and RS-422 Serial Interface SignalsRS-232 and RS-422 Serial Interface Error Handling RS-232 RS-232 and RS-422 RS-232 and RS-422 Serial Interface ConfigurationRS-232 only Interface Configuration Interface ConfigurationVMS Operating System VMS Operating System Exterior Cleaning Cleaning RequirementsInterior Cleaning Cleaning Requirements Interior Cleaning Cleaning the Interior of the Printer Printer Self-Tests Diagnosing ProblemsDiagnosing Problems Sample Print Test All E’s Step Key Result Printer Self-Tests Sample Print Test All E’s Step Key Result Printing a Hex Dump Hex Dump Sample Printing a Hex Dump Step Key Result Fault Messages Fault Messages Requiring Field Service Attention 15V PWR Fail Access Null PTR5V PWR Fail 23.5V PWR Fail HB not Installd Firmware ErrorFraming Error Exhaust FAN FLT ILL Inst Accss Intake FAN FaultParity Error LO DRV. Short Plat INV CMD Power Saver ModePower Supply HOT Plat INV Parm Shutl INV Parm Software ErrorShutl INV CMD Shuttle JAM 148 Enable State Ribbon Life 100% Ribbon INK OUT Change Ribbon Configuration Using the RibbonMinderUsing the RibbonMinder Configuration RibbonMinder Configuration Step Key Result Running a Job New Ribbon Procedure Step Key ResultNew Ribbon Ribbon Action Ribbon Action Configuration Step Key ResultRibbon Action RibbonMinder Fault Ribbon Size Ribbon Size Configuration Step Key ResultRibbon Size Ribbon Adjust Fault Action Paper Ribbon SpecificationsPaper Specifications Labels Printer Dimensions Environmental Characteristics Operating Units Power Consumption Mode Electrical CharacteristicsPower Consumption Interfaces Printing Rates Appendix a Printing Rates Standard Ascii Character Set Appendix B Your Application Vendor Sources of SupportYour Printronix Vendor Internet Printronix Technical Support Appendix C Sources of Support Glossary Ascii Appendix D Example Bold refers to a heavy or thick character See also point EIA/TIA Ieee IGP NLQ LCDLED Nvram OCR Pcba RAM ROM Sfcc VFU OFF 174 Index Coil HOT 177 LO DRV. Short *, 144 IGP/PGL Page Page Ribbon INK OUT, Change Ribbon Page Page Page 172292-001B