Xerox ls 32270 Operation of the Xerox LS, Indicators of the Xerox LS, PAR Parallel input

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Operation

Xerox LS 3270

3. Operation of the Xerox LS 3270

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

∙CU (contact to Control Unit)

∙PAR (parallel input)

See the illustration in the section Knowing the Front Panel for the position of the LEDs.

3.1. Indicators of the Xerox LS 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 LS 3270 buffer.
	2. Indicates that the address switch has been
	activated and the box is ready to enter on-line
	HEX dump mode
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 input

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Contents Rank Xerox Electronic Documentation September PrefaceRelated Manuals Table of Contents Introduction to the Xerox LS What is the Xerox LS 3270?PCL Driver Default PCL or FSL output driverXerox LS 3270 Features Changing the DriverInstallation Requirements Supported Control UnitsPaper Size Default US/EU Operating EnvironmentInstallation of the Xerox LS Knowing the Front PanelPrinter Dependency InstallationPre-Installation Information Installation Procedure Below follows the procedure for installing the Xerox LSAutomatic Power Supply Control Xerox LS 3270 and its side panelTesting PCL driverTimeout CU Contact with Control Unit Indicators of the Xerox LSOperation of the Xerox LS PAR Parallel inputSpecifying Timeout 3NVRAM = Non-volatile RAM Programming theXerox LS Setup functions supported in PCL mode Where % is the defined ESC character Send Logo ESC FeaturesWhere % is the defined ESC character Engineering Functions User Settings Functions X-FunctionsTest functions T-Functions FunctionsSetup Functions supported in FSL mode ESC Features User Settings Functions X-Functions FSL Setup via Xerox LS 3270 Parallel Port ??%%Y100,10,’SHARESTRING’%%X1Deactivating the Y249 Engineering Function Limitations when Y249 is activeActivating the Y249 Engineering Function Updating firmware Error Messages Recoverable ErrorsThere is no Space Left Dynamic Area Non-Recoverable Hardware Errors PCL Test Printout Busy Timeout Timeout CoaxTest Printouts Proportional Spaced = Active Gfid =Busy Timeout FSL Test PrintoutLPI Appendix A. Quick Reference Guide to FSL FunctionsFSL N/S LPI FSL N/SEbcdic Y10 Y12 Y19 Y13Are wrapped Y22Name Syntax Parameters Deviations Y35 Y41 EABY39 IRQ Y47Eeprom ESCEEPROM/RAM Y54 Y52Y53 Y59 Y55Y56 Y60HEX Y71Y74 Ascii HEX PCL modeFSL mode N2dataY79 APLName Syntax Parameters Deviations Y93 Y91Y92 Y94APO Y96Y98 Y110Y113 Y111Y112 Y119 Y114Y115 Data Re. T2RAM Appendix B. Selected Xerox Products Coax Supported Printers ExternalIndex Coax