VXI SM8000 user manual Relay Register 00 Read and Write, Writing to the Relay Registers

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VXI Technology, Inc.

WRITING TO THE RELAY REGISTERS

If the SM8000 is used to drive single-mode prism switches, in either latching or non-latching configurations, setting the switches is accomplished through writing to the Relay Register located at Relay Register Offset H0000. Each bit, of this 16-bit register, represents the state of the relay (1 = closed, 0 = open). (Note that bits 15 through 12 are unused.) To change the state of any relay, it is only necessary to write a 16-bit integer to the specified register with the new configuration. For example:

•writing a data value of "0" to the register at offset "0" would open the 12 available switches

•writing a data value of 4095 (0x0FFF) to the same register would close the 12 switches

•writing a data value of 4094 (0x0FFE) to the same register would close all switches except switch number 1

Relay Register 00 – Read and Write

ADDR

Plug-In LA+0x000

 

 

D15-D12

Unused

Write has no effect. Read back as 1111.

 

 

0

= Opens optical path.

 

1x2 or 2x2 Optical

1

= Closes optical path.

 

Pon state = 0

D11-D0

Prism Switch

 

 

 

Control Register

A read of this bit location will indicate whether the optical path is

 

 

either closed or open. This register controls the possible 12 prism

 

 

switches that may be driven by the SM8000.

SM8000 Series Programming

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Contents SM8000 Series VXI Technology, Inc Table of Contents Control Modes VXI Technology, Inc SM8000 Series Preface Certification Steve Mauga, QA Manager EMCVXI Technology, Inc SM8000 Series Preface Terms and Symbols Service should only be performed by qualified personnelAvoid Electric Shock Support Resources VXI Technology, Inc SM8000 Series Preface Overview SectionSM8000 Series Optical Switch Controller Configurations SM8001 / SM8002 MULTI-CHANNELSWITCHESDuplex 1 x N PDL6 SM8001 / SM8002 Multi Switch SpecificationsSpdt SM8003 Prism SwitchesPDL3 SM8003 Prism Switch SpecificationsPDL SM8101 / SM8102 Optical AttenuatorsSetting the Chassis Backplane Jumpers Calculating System Power and Cooling RequirementsIntroduction Example Setting the Logical AddressMSB LSB Selecting the Extended Memory Space Mating Optical Connectors Cleaning Optical ConnectorsOptical Connections General Description SM8001 / SM8002 Multi-Channel SwitchesSM8003 Prism Switches SM8003 Prism SwitchesSM8101 / SM8102 Optical Attenuators Attenuator DiagramOperation Resetting the SwitchRelay Registers Output Channel Selection N Switch Configuration Common Active Channel Duplex 1 x N Switch ConfigurationN Blocking Switch Configuration N Non-Blocking Switch Configuration 8MULTI-SWITCH Timing Calculating Switching TimeSM8003 Prism Switches Calibrated Operation Starting the DeviceControl Modes Uncalibrated Operation Move-To-Absolute-StepCommanding the Devices Busy SignalError Status Resetting the DeviceAddressing Register AccessOffset Write Function Smip II Register MAP A16Status Register Read Only ID Register Read OnlyLogical Address Register Write Only Device Type Register Read OnlySerial Number Low Register Read Only Control Register Write OnlyOffset Register Read and Write Serial Number High Register Read OnlyInterrupt Control Register Read and Write Interrupt Status Register Read OnlySubclass Register Read Only Trace RAM Start High Register Read and Write NVM Access Register ReadNVM Access Register Write Board X, Y Used Address Register Read and WriteTrace RAM Address LOW Register Read and Write Trace RAM End High Register Read and WriteTrace RAM End Low Register Read and Write Trace RAM Address High Register Read and WriteTTL Trigger Polarity Register Write Only Open Trigger Select Register Write OnlyBusy Trigger Control Register Read and Write Trace RAM Control Register Read and WriteBoard Busy Register Read Only Trigger Advance Register Write OnlyReserved Registers Read and Write 1MB RAM Control Register Read and Write See Typical Optical Multi Switch OperationControl Register Delay Register Read and Write Plug-In LA+0x104 Command Register Write Only Address Register Write Only Relay Register Offset Device MemoryWriting to the Relay Registers Relay Register 00 Read and WriteRegister 02 thru 08 Read and Write Relay Optical Module’s Data Attenuation LevelRegister 0A thru 0C Read Programming Examples Typical Optical MULTI-SWITCH Control ExampleWrite Typical Optical Attenuator Control ExampleVXI Technology, Inc Read Example Write ExampleCommand Transmit Data Receive Data Byte Byte Count Command SET31h 30h35h 32h80h 6Ch82h 81h89h 83h8Bh 8Ah8Dh 8Ch8Eh Recommends That the Optical MODULE’S 90hConvert to hexadecimal A2h 96hVXI Technology, Inc SM8000 Series Programming Index VXIbus

SM8000 specifications

The VXI SM8000 is a versatile and robust modular instrumentation platform that is designed for various testing applications in industries such as aerospace, telecommunications, and military. This advanced test equipment is part of the VXI (Versatile Instrumentation System) standards, which allow for high-speed data acquisition, processing, and analysis.

One of the main features of the VXI SM8000 is its modular architecture, which enables users to configure the system according to their specific testing needs. This flexibility means that users can integrate various modules, including signal generators, oscilloscopes, and digital multimeters, making the system adaptable to a wide range of applications. The modular design also ensures scalability, allowing for easy expansion as test requirements grow.

The VXI SM8000 supports high-speed communication via its advanced backplane design. This design features multiple data buses that facilitate fast communication between modules, ensuring minimal latency and enhanced performance during testing. Moreover, the system is built to accommodate high-density modules, maximizing the amount of test parameters that can be handled simultaneously.

The SM8000 boasts enhanced signal processing capabilities thanks to its digital signal processing (DSP) technology. This feature enables real-time analysis and processing of signals, which is crucial for applications that require rapid feedback and adjustments. Additionally, the system is equipped with high-resolution analog-to-digital converters, ensuring precise measurement and analysis.

One of the key characteristics of the VXI SM8000 is its reliability. Built with robust materials and advanced engineering, the system is designed to endure rigorous testing environments and extreme operating conditions. This durability ensures consistent performance over time, making it a reliable choice for critical applications.

Furthermore, the VXI SM8000 is compatible with various software platforms, enabling seamless integration into existing testing environments. It supports programming languages like LabVIEW and MATLAB, allowing engineers to develop customized test scripts and configurations easily.

In summary, the VXI SM8000 is a powerful and flexible test system that combines modularity, high-speed communication, advanced signal processing, and compatibility with industry-standard software. Its reliability and scalability make it an ideal choice for professionals seeking a comprehensive testing solution across various sectors.
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