HP SB Calibrating the Switch, Maintaining the Switch, Print #1, CLOSE? Input #1,A$ Print A$ END

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2.At the computer, initialize the serial port to 1200 baud, eight bit ASCII character code, one stop bit, and no parity. Use the following MS-DOS2Qbasic program as an example:

OPEN "COM2;1200,N,8,1" FOR RANDOM AS #1 PRINT #1, "CLOSE 5"

PRINT #1, "CLOSE? " INPUT #1,A$

PRINT A$ END

Calibrating the Switch

No calibration is required.

Maintaining the Switch

Clean the connector ends with a lint-free tissue and alcohol before every mating. See the Cleaning Connectors section.

Clean the internal connectors and the panel-mounted connector bulkheads periodically or when high losses are suspected. The internal connectors can be accessed by removing the connector panel:

1.Remove the retaining screws of the connector panel.

2.Slowly pull the panel out to the full extent of its guide rails (Figure 13).

Figure 13: Removing the Connector Panel

3.Remove the connectors from the connector bulkheads.

4.Clean the connector ends and the bulkhead mating sleeves with a lint-free tissue and alcohol.

5.Reinstall the connectors into the bulkheads.

2MS-DOS is a registered trademark of Microsoft Corporation.

Operating and Maintenance Instructions – 21

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Contents SB Series Fiberoptic Switch User’s ManualPage Contents Programming Guide SD000153 Rev. J May Safety Information, Instructions, and Symbols Safety InformationOperating the Unit Safety InstructionsBefore Initializing and Operating the Unit Safety Proceeding Safety SymbolsSymbol Compliance CE ComplianceGeneral Information General Information and SpecificationsSingle-Common SB-C Switch Configuration Dual-Common SB-D Switch Configuration Single Step Dual Common SB-E Switch ConfigurationStandard Accessories Dual-Common Blocking SB-F Switch ConfigurationKey Features Optional AccessoriesSpecifications Parameter Typical MaximumEnvironmental ElectricalPhysical Initial Inspection Getting StartedBefore Initializing and Operating the Unit Operating EnvironmentStoring and Shipping Cleaning Connectors Installing the Switch Connector Cleaning connector type can varyOperating Keys Operating and Maintenance InstructionsFront Panel Key DescriptionRear Panel External Switch Module ConnectionsExternal Switch Module without TTL Input Controls External Switch Module with TTL Input Controls Sample Driver Application Electrical Equivalent of DriverPowering Up the Switch Using and Selecting a ChannelControlling the Drivers Setting the Gpib AddressSetting the Interface Command Set for SC and SX Switches Controlling the Switch Remotely by RS232 Interface Controlling the Switch LocallyControlling the Switch Remotely by Gpib Interface Print #1, CLOSE? Input #1,A$ Print A$ END Calibrating the SwitchMaintaining the Switch Operating and Maintenance Instructions Programming Guide Gpib Pin AssignmentRS232 Pin Assignment RS232 Interface SpecificationsGpib Interface Functions Mnemonic FunctionCommand Parser Rules Operation and Query CommandsName Symbol Pin Number Signal Direction RS232 Driver Pin AssignmentClose Set Optical Channel Operation CommandsReset XDR i k Driver ControlQuery Commands Drivers Error NumberLast Number Error LearnStatus Register Status Reporting and Service Request ControlCondition Register SRQ Mask Register Bit Gpib Programming ExamplesSRQ Mask Register Sending Commands Serial Polling the Status RegisterLearn Query LRN? Generating a Service Request InterruptRS232 Programming Examples Reading the Status Register Setting the Interface Command SetQuerying Status Syntax Function SC Series Switch Command Set SCXXX-0XXX ModelsSX Series Switch Command Set Bit MessageRQS Busy Normal BAD Data Unit Failure