Zebra Technologies S-300 Printer Interface Technical Information, RS-232 Interface, Signal Levels

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Appendix

Printer Interface Technical Information

RS-232 Interface

Signal Levels

For all RS-232 input and output signals, the Stripe printer follows both the Electronics Industries Association (EIA) RS-232 and the Consultative Committee for International Telegraph and Telephone (CCITT) V.24 standard signal level specifications.

	RS-232 Connector Pinout
Pin No.	Description
1	Chassis Ground
2	TXD (Transmit Data) output from the printer
3	RXD (Receive Data) input to the printer
4	RTS (Request To Send) output from the printer
5	CTS (Clear To Send) input to the printer
6	DSR (Data Set Ready) input to the printer
7	Signal Ground
20	DTR (Data Terminal Ready) output from the printer

NOTE: Pin #’s 8-19 and 21-25 are not used and are unterminated.

Data signals are defined as either MARK or SPACE, while control signals are either ACTIVE or INACTIVE. The voltage levels which represent these conditions are:

Data Signal	RS-232 Voltage Level
MARK or INACTIVE =	-3 to -25 VDC
SPACE or ACTIVE =	+3 to +25 VDC

Hardware Control Signal Descriptions

Request To Send (RTS) is a control signal from the printer to the host computer. RTS is always in the ACTIVE condition (positive voltage) whenever the printer is powered ON.

Clear To Send (CTS) is a control signal from the host computer to the printer. When CTS is in the ACTIVE condition (positive voltage), the Stripe printer can transmit status to the host. When CTS is in the INACTIVE condition (negative voltage), the printer will not transmit any data.

When RTS/CTS handshaking is selected via DIP Switch # 7 at the rear of the printer, the Data Terminal Ready (DTR) Control Signal output from the printer controls when the host computer may send data. DTR ACTIVE (positive voltage), permits the host to send data. When the printer places DTR in the INACTIVE (negative voltage) state, the host must not send data.

NOTE: When XON/XOFF handshaking is selected, data flow is controlled by the ASCII Control Codes DC1 (XON) and DC3 (XOFF). The DTR Control lead will have no effect.

Appendix

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Contents User’s Guide Proprietary Statement Warranty Information Zebra Software License Agreement Warranty InformationMedia Calibration Adjust the Print Darkness AC Power ON/OFF Switch Fro FEEDServicesKey and Pause Key RS-232 Cabling Requirements Reporting Damage UnpackingGetting Started Printer Power UpSite Requirements Storage and ReshippingVoltage Selection AC Power CableCommunications T t i n g S t a r t e d Tear- Off Mode Media LoadingMedia and Ribbon Loading MediaExternal Rewind Mode Media Loading Cutter Mode Media Loading Cutter Option RequiredFanfold Media Loading Fanfold Media Loading in Tear-Off Mode Peel-Off Mode Media LoadingPeel-Off Option Required Removing the Label Backing Material Peel Off Option Required Non-Continuous Media Adjusting the Media SensorContinuous Media Ribbon Loading Adjusting the Ribbon Supply SpindleRibbon Supply Spindle Normal Position Ribbon Supply Spindle Low-Tension PositionLoading the Ribbon Ribbon RemovalOption Switch Settings Configuration and CalibrationSwitch Baud Rate SwitchMedia Calibration Configuration ModeAdjust the Media Rest Position Adjust the Print DarknessAdjust the Position of the Top of the Label Getting Started Operating Your Zebra Stripe Printer Tear-Off ModePrinter Operating Modes Operation AC Power ON/OFF SwitchOperator Controls AC Power ON/OFF Switch Front Panel Keys Front Panel LightsSensor What it monitors How it works Printer Status SensorsBacking Rewind Spindle Full Sensor Position Format 1 Simple Text and a Barcode Sample ZPL II Label FormatsType this label format Format 2 Saving a Label Format As a Graphic Image Format 3 Using a Serialized Data FieldLine Type this label format You’ll get this printout Type this label format You’ll get this printoutCleaning the Exterior CleaningCleaning the Interior Preventive Maintenance KitCleaning the Printhead Routine Care and AdjustmentCutter Module and Catch Tray Location This procedure is on the next Cutter Module Disassembly This procedure is on Reassembled Cutter Module Lubrication AC Power Fuse ReplacementPrint Quality Adjustments Mechanical AdjustmentsToggle Pressure Adjustment Toggle Pressure AdjustmentRibbon Supply Spindle Adjustment Media Sensor Position AdjustmentBattery Replacement Troubleshooting Table Troubleshooting and DiagnosticsFlashing Troubleshooting and DiagnosticsTroubleshooting and Diagnostics Troubleshooting and Diagnostics Power-On Self Test Printer DiagnosticsAdditional Printer Self Tests Pause Key Self Test Cancel Key Self TestPause Key Self Test Printout Feed Key Self TestMode Key Self Test Extended Printer DiagnosticsFeed Key and Pause Key Page Page Options*Factory-Installed StandardPrinterFonts DefaultPrinterFonts6Dots/mm Page Ard BitmapSmoothFontsPointSizeExamples Zebra Technical Support Bulletin Board Service How to Reach UsTechnical Support Zebra’s Corporate OfficesTechnical Support Service via Telephone Support ServicesTechnical Support via Mail or Fax Zebra Technologies Corporation Service Form Extended Factory Service Agreement Product Service and Support ProgramsThird Party Support And Maintenance Select The Program That Fits Your BusinessUser Self Maintenance Zebra Factory ServicesWang Customer Services Division International Service and Support Zebra Training Programs Course Name Printers Covered Operations and Maintenance CoursesLabeling Bar Codes at Work Support Services Printhead Position Adjustment Procedure Adjusting the PrintheadAppendix Print Quality AdjustmentHardware Control Signal Descriptions Signal LevelsPrinter Interface Technical Information RS-232 InterfaceInterconnect To DTE Devices RS-232 Cabling RequirementsInterconnect To DCE Devices Parallel Cabling Requirements Parallel InterfacePin No Parallel Connector Pinout Signal DescriptionsGlossary Glossary Index Index