HP manual Power Supply Circuit, HP E1368A Switches

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Power Supply Circuit

Power to operate the coaxial switches can be supplied internally or externally, dependent on the type of coaxial switch used.

∙Internal voltages of either +5V or +12V can be selected using jumpers on the board. These voltages are routed through the module from the mainframe backplane.

Note Check mainframe power availability before using internal voltages.

∙External voltages of up to 42Vpk can be connected using the EXTernal POWER terminal block.

Caution

HP E1368A Switches

MAXIMUM VOLTAGE. The maximum voltage that may be applied to the EXTernal POWER terminal is 42Vpk. Remove the F3 fuse when using external switch power.

MAXIMUM CURRENT. The maximum current that the control circuit can accommodate is 1 amp per switch. Maximum current also depends on the output capacity of the mainframe or power supply used.

The HP E1368A Microwave Switch module contains three HP 33311B Option 011 (8672B Option 005 and 100) microwave Switches:

∙Broad bandwidth (DC - 18 GHz).

∙High isolation (>90 dB to 18 GHz).

∙Excellent repeatability (typically 0.03 dB after 1,000,000 switchings).

∙Internal 50Ω terminations.

These coaxial switches allow +5V coil voltage electrical characteristics (drive voltage) operation instead of the standard +24V. This is necessary since the Microwave Switch module provides only +5V or +12V for driving microwave switches.

These coaxial switches are break-before-make switches controlled by a latching solenoid. Internal coil contacts open and remove coil voltage after a switching operation to minimize the amount of heat dissipated near the switch contacts.

When a coil is energized and a switching operation occurs, a pivot armature in the microwave switch also operates both sets of contacts, either closing the switch or connecting it to the 50Ω termination.

Chapter 1

Getting Started with the HP E1368A/69A/70A 13

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Contents Contents Open OPEN? Scan Scanmode SCANMODE? Cpon HP E1368A/69A/70A Modules User’s Manual Contents Certification Documentation History According to ISO/IEC Guide 22 and EN AprilPage Business Reply Mail Page Microwave Switch Description Using This ChapterGetting Started with the HP E1368A/69A/70A Chapter HP E1368A Switches Power Supply CircuitInstrument Definition Programming the Microwave SwitchCard Numbers for Multiple-Module Switchboxes Initial Operation Example Reset the switchbox and close channelConfiguring the HP E1368A/69A/70A Modules Logical Address Selection Setting the Address SwitchInterrupt Priority Selection Selecting the Interrupt PriorityInstalling Switches on the Module Installing Switches on the HP E1369AChapter Configuring the HP E1368A/69A/70A Modules Microwave Switch Installation Connecting Switches External To the Module Selecting Switch Power Selecting Switch Voltage Connecting Field WiringInstalling a Switch Or Attenuator on Module Microwave Switch/Attenuator Installation Shows the internal schematic of a single attenuator section Microwave Switch Commands Using the HP E1368A/69A/70A ModulesReset Conditions Example Single Channel Switching Switching ChannelsPower To connect C to Port 1, execute 33363K 33364K 33365K 33366K Example Multiple Channel Switching Using EXTernal Example Transfer Switch Using Two Port Switches Example Transfer Switch Using One Port Switch Example 4 x 1 Multiplexer To route signal B to the output, executeSelects the Trigger Source Scanning ChannelsOutput 722TRIG EXT … Example Scanning ChannelsExample Multiple Channel Scanning Example Using the Scan Complete Bit110END Recalling and Saving States Detecting Error ConditionsRepeat Synchronizing Instruments Synchronizing the Microwave SwitchQuerying the Microwave Switch Common Command Format Command TypesScpi Command Format HP E1368A/69A/70A Command Reference Chapter Semicolon between the commands. For example ABORt Scpi Command ReferenceExample Stopping a Scan with ABORt ∙ Number of Scans Use only numeric values between 1 For the number of scanning cycles default isArmcoun DISPlay Example Select Module #2 in a Switchbox for MonitoringMONitorCARD ∙ Selecting a Specific Module to be Monitored UseExample Querying the Monitor Mode Example Enabling the Monitor Mode∙ Selecting the Module to be Monitored Use INITiate ∙ Stopping Continuous Scans See the ABORt commandExample Enabling Continuous Scans Example Query Continuous Scanning State OUTPut Example Query Trig Out Port Enable StateExample Enabling Trig Out Port ROUTe Example Closing Microwave Switch Channels∙ Closing Channels To close ∙ Opening Channels To open Example Opening Microwave Switch ChannelsOr any combination Example Scanning Using External DeviceChapter HP E1368A/69A/70A Command Reference STATus Example Query the Standard Operation Status Enable Register ∙ Setting Bit 7 of the Status Byte RegisterSTATOPER? CDEScription? SYSTemExample Reading the Error Queue Comments Microwave Switch Module Model NumberExample Reading the Model Number of a Card #1 Module Example Advancing Scan Using the TRIGger Command ∙ Executing the TRIGgerIMMediate Command a channel listTRIGger ∙ Hold or BUS Source Remains If selected, the TRIGgerSOURceExample Scanning Using External Triggers ∙ Trig Out Port Shared by Switchboxes See the OUTPut commandExample Query the Trigger Source Scanning Using Bus TriggersHP Command Module User’s Manual, or the ANSI/IEEE Standard Ieee 488.2 Common CommandsScpi Commands for Quick Reference Command Quick ReferenceHP E1368A/69A/70A Command Reference Chapter Maximum Input Power 1 Watt average Characteristic Impedence 50Ω Insertion LossConnectors Used P1 No. Slots Operating TemperatureHP E1368A/69A/70A Specifications Appendix a Register Definitions HP E1368A/69A/70A RegistersReading the Registers Addressing the RegistersID and Device Type Registers Writing to the Registers Status/Control Register Channel Enable RegisterHP E1368A/69A/70A Registers Appendix B HP E1368A/69A/70A Error Messages Page HP E1368A/69A/70A Modules User’s Manual Index IndexHP E1368A/69A/70A Modules User’s Manual Index HP-IB HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index