Xerox FS 3270 Operation of Xerox FS, Indicators of the Xerox FS, CU Contact with Control Unit

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Operation

Xerox FS 3270, User's Guide

3. Operation of Xerox FS 3270

The Xerox FS 3270 top panel has been designed to register the operation of the box via the four following indicator LEDs :

∙CU (contact to Control Unit)

∙PAR (parallel input)

∙SER (serial input)

∙READY (printer)

3.1.The Indicators of the Xerox FS 3270

CU (Contact with Control Unit)

This indicator LED has 3 states:

State	Indication
ON	Contact with the control unit.
BLINKING	1. Contact with the control unit, and data pending
	in the Xerox FS 3270 buffer.
	2. Indicates that the TEST switch has been
	activated and the box is ready to enter on-line
	HEX dump mode
	3. The CU indicator will be blinking rapidly while
	the rotary switch is in the “T” position. This is an
	indication that the “T” position is not a valid
	permanent position.
OFF	No contact to the control unit, or the contact has
	been broken for more than 1 minute.

PAR (Parallel input)

The indicator LED has 2 states:

State	Indication
ON	Indicates that the box is processing data from the
	Centronics parallel port
OFF	Indicates that the box is idle or processing data
	from the coax/RS inputs

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Contents EMC directive TrademarksPreface Related ManualsSeptember Table of Contents Table of Contents Xerox FS 3270, Users Guide Introduction to Xerox FS Installation RequirementsPCL Driver Default Driver PCL or FSL output driverXerox FS 3270 Features Non-IPCSupported Control Units Items SuppliedXerox FS Operating Environment Changing Paper Size Default US/EuropeIPC Upgrade Kit Xerox FS 3270 IPCInstallation Requirements Xerox FS 3270, Users Guide Installation and Connections of the Xerox FS Rear PanelChanging the Printer Driver Serial inputConnecting the Xerox FS 3270 to the Printer Upgrading to IPCConnecting via Centronics output Connecting via RS-232 outputConnecting to System Xerox FS 3270, Users Guide Connecting the Xerox FS 3270 to the System What if the CU Indicator fails to turn on?Testing PCL driverTimeout Settings Printout at Power-on PCL mode onlyCU Contact with Control Unit Indicators of the Xerox FSOperation of Xerox FS PAR Parallel inputSER Serial input Ready Printer ReadySpecifying Timeout ??character??%%Y100,30,1B,45%%X1 IdaSetup IPC Programming IRQ Handling PrinterPCL Driver Default Programming Xerox FS 3270 non-IPCSetup Functions Supported in PCL mode ESC Features Where % is the defined ESC characterWhere % is the defined ESC character Send Logo Engineering Functions User Settings Functions X-FunctionsTest functions T-Functions FunctionsSetup Functions Supported in FSL mode ESC Features User Settings Functions X-Functions ??%%Y100,10,’SHARESTRING’%%X1 FSL Setup via Xerox FS 3270 Serial or Parallel Port??%%Y249,PASSWORD%%Y100,10,’SHARESTRING’%%X1 Character conversionLimitations when Y249 is active Activating the Y249 Engineering FunctionDeactivating the Y249 Engineering Function Updating Firmware Error Messages Recoverable ErrorsNot in engineering mode Non-Recoverable Hardware Errors Busy Timeout Test PrintoutsPCL Test Printout Gfid CPI= Proportionally Spaced =Active Gfid = FSL Test Printout LPI Appendix a Quick Reference Guide to FSL FunctionsFSL N/S LPI FSL N/SEbcdic Y10 =FSL=PCL Y12 Y13Are wrapped Y19 Y22FF after Y26,n1% = No FF Y35 EAB Y39Y41 IRQ Y47Eeprom ESCEEPROM/RAM Y52Y55 Y53Y54 Y56Y71 Y74HEX Ascii HEX PCL modeFSL mode N2dataY79 APLName Syntax Parameters Deviations Y93 Y91Y92 Y94Y96 Y98APO Y110 Y111Y112 Y115 Y113Y114 Y118Re. T2 RAMData Appendix B Using Serial OUT Use of Xerox FS 3270 serial portExample Cable connections to HP LaserJet Appendix C Selected Xerox Products