Page 3 - Important Information
Important Information Warranty The NI 2590 and NI 2591 switch modules and accessories are warranted against defects in materials and workmanship for aperiod of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at itsoption, repair or repl...
Page 4 - Compliance; FCC/Canada Radio Frequency Interference Compliance*; Determining FCC Class; Class A; Class B
Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless communications from interference.The FCC places digital electronics into two classes. These classes are known as Class A (for use in industri...
Page 5 - European Union - Compliance to EEC Directives
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Canadian Department of Communications This Class B digital apparatus meets all requirements of the Canadian Interference-Ca...
Page 6 - Conventions
Conventions The following conventions are used in this manual: < > Angle brackets that contain numbers separated by an ellipsis represent arange of values associated with a bit or signal name—for example,DBIO<3..0>. This icon denotes a note, which alerts you to important information. Thi...
Page 7 - Contents
© National Instruments Corporation vii NI 2590/2591 User Manual Contents Chapter 1Routing Signals with Your NI 2590/2591 About the NI 2590/2591 ................................................................................................ 1-1 Triggers..................................................
Page 8 - Glossary
Contents NI 2590/2591 User Manual viii ni.com Appendix CCommon Questions Appendix DTechnical Support Resources Glossary Index
Page 9 - Triggers
© National Instruments Corporation 1-1 NI 2590/2591 User Manual 1 Routing Signalswith Your NI 2590/2591 This manual describes the electrical and mechanical characteristics of theNI 2590, a 1 × 4, 50 Ω , 1.3 GHz multiplexer module, and the NI 2591, a 1 × 4, 50 Ω , 4.0 GHz multiplexer module, for the ...
Page 10 - RF Switching Precautions; Contact Protection
Chapter 1 Routing Signals with Your NI 2590/2591 NI 2590/2591 User Manual 1-2 ni.com The external trigger input trigger is generated by another instrument or by software and causes the NI 2590/2591 to advance to the next entry in thescan list. The triggers can be routed to any of the PXI TTL trigger...
Page 11 - Connecting Signals
Chapter 1 Routing Signals with Your NI 2590/2591 © National Instruments Corporation 1-3 NI 2590/2591 User Manual Connecting Signals The front of the NI 2590 module has five “push-on” SMB connectors forsignal connections. The NI 2591 has five SMA female connectors. Thecenter connection, labeled COM, ...
Page 13 - Software Choices; NI-SWITCH Driver Software
Chapter 1 Routing Signals with Your NI 2590/2591 © National Instruments Corporation 1-5 NI 2590/2591 User Manual Software Choices You have several options to choose from when programming your NationalInstruments switch module. You can use the NI-SWITCH driver softwareor National Instruments applicat...
Page 14 - Cabling and Accessory Requirements
Chapter 1 Routing Signals with Your NI 2590/2591 NI 2590/2591 User Manual 1-6 ni.com Third-Party Software The NI-SWITCH instrument driver also includes support files forMicrosoft Visual C++ and Microsoft Visual Basic. See the NI-SWITCH Software Readme File for version support information. Cabling an...
Page 15 - Safety Instructions
© National Instruments Corporation 2-1 NI 2590/2591 User Manual 2 NI 2590/2591 Operation This chapter contains safety instructions and a functional overview of theNI 2590/2591 switch modules. It also explains the operation of eachfunctional unit making up the switch module. Safety Instructions Cauti...
Page 16 - Functional Overview
Chapter 2 NI 2590/2591 Operation NI 2590/2591 User Manual 2-2 ni.com Functional Overview The following block diagrams illustrate the key functional components ofthe NI 2590 and NI 2591 switch modules. The major components of the NI 2590/2591 are as follows: • General-purpose high-frequency relays • ...
Page 19 - Relay Operation
Chapter 2 NI 2590/2591 Operation © National Instruments Corporation 2-5 NI 2590/2591 User Manual Relay Operation NI 2590 Operation The NI 2590 has four channels, CH0 through CH3, any one of which canbe connected to the single common channel (COM) by closing theappropriate relays. You can control the...
Page 20 - Switch Control Circuitry
Chapter 2 NI 2590/2591 Operation NI 2590/2591 User Manual 2-6 ni.com Switch Control Circuitry The switch control circuitry (SCC) is responsible for opening and closingrelays on the NI 2590/2591. You can load commands for the SCC into scanmemory using the driver software you received with your kit. C...
Page 21 - PXI Interface; PXI Triggers
Chapter 2 NI 2590/2591 Operation © National Instruments Corporation 2-7 NI 2590/2591 User Manual intervention. You can configure the switch module to process the scan listonce or to continuously loop through the scan list. PXI Interface You can configure and control your NI 2590/2591 switch module t...
Page 22 - Modes; Initiating Scanning
Chapter 2 NI 2590/2591 Operation NI 2590/2591 User Manual 2-8 ni.com Modes SCANADV has two modes of operation. In its default mode, theSCANADV trigger asserts for 1 µs after the relay has debounced. Youcan also configure the switch module for handshaking mode, in which theSCANADV trigger goes high a...
Page 24 - Input Characteristics; RF Performance Characteristics
© National Instruments Corporation A-1 NI 2590/2591 User Manual A Specifications This appendix lists the specifications for the NI 2590/2591 switch module.These specifications are typical at 25 ° C unless otherwise noted. NI 2590 Input Characteristics Number of relays...................................
Page 25 - Dynamic Characteristics; PXI Bus Interface
Appendix A Specifications for NI 2590 NI 2590/2591 User Manual A-2 ni.com VSWR at: < 100 MHz.......................................< 1.15 < 500 MHz.......................................< 1.35 < 1.3 GHz ........................................< 1.5 Isolation: < 500 MHz.............
Page 26 - PXI Trigger Bus
Appendix A Specifications for NI 2590 © National Instruments Corporation A-3 NI 2590/2591 User Manual PXI Trigger Bus Trigger lines ........................................... 8 Star trigger.............................................. 1 Power Requirement +5 VDC Minimum (all relays opened) ...........
Page 28 - Power Requirement
Appendix A Specifications for NI 2591 © National Instruments Corporation A-5 NI 2590/2591 User Manual Note Refer to the safety information in Chapter 2, NI 2590/2591 Operation , for important information about using your NI 2591 with high-power signals. Dynamic Characteristics Relay operate time (at...
Page 30 - Servicing Your Module; Replacing the NI 2590 Relay Module
© National Instruments Corporation B-1 NI 2590/2591 User Manual B Servicing Your Module This appendix describes procedures for servicing your NI 2590/2591module. Replacing the NI 2590 Relay Module The NI 2590 is constructed so that the relay module can be replaced whenthe relays fail. The life of th...
Page 31 - Replacing the NI 2591 Relay Module
Appendix B Servicing Your Module NI 2590/2591 User Manual B-2 ni.com Follow these instructions to replace the failed module as shown inFigure B-1. 1. Ground yourself with a grounding strap or a ground connected toyour PXI chassis. Properly grounding yourself prevents damage toyour PXI module from el...
Page 33 - Common Questions
© National Instruments Corporation C-1 NI 2590/2591 User Manual C Common Questions This appendix addresses common questions you may have while usingyour NI 2590/2591 switch module. What should I do if the software detects the module but the switches donot switch? Verify that the switches do not swit...
Page 35 - Technical Support Resources; Web Support; Customer Education; System Integration
© National Instruments Corporation D-1 NI 2590/2591 User Manual D Technical Support Resources Web Support National Instruments Web support is your first stop for help in solvinginstallation, configuration, and application problems and questions. Onlineproblem-solving and diagnostic resources include...
Page 36 - Worldwide Support
Appendix D Technical Support Resources NI 2590/2591 User Manual D-2 ni.com Worldwide Support National Instruments has offices located around the world to help addressyour support needs. You can access our branch office Web sites from theWorldwide Offices section of ni.com . Branch office Web sites p...
Page 37 - Numbers and Symbols
© National Instruments Corporation G-1 NI 2590/2591 User Manual Glossary Prefix Meaning Value p- pico- 10 – 12 n- nano- 10 – 9 µ- micro- 10 – 6 m- milli- 10 – 3 M- mega- 10 6 G- giga- 10 9 Numbers and Symbols ° degrees Ω ohms % percent > greater than < less than A A amperes AC alternating curr...
Page 42 - Index
© National Instruments Corporation I-1 NI 2590/2591 User Manual Index B block diagrams NI 2590, 2-3NI 2591, 2-4 C cables and accessories, 1-6certification and compliances NI 2590, A-3NI 2591, A-6 CH<0..3> signal (table), 1-4COM signal (table), 1-4common questions about NI 2590/2591, C-1 to C-2...
