Agilent Technologies 34937A User Manual
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Agilent Technologies 34937A User Manual

General purpose switch modules
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Agilent 34937A-34939A
General Purpose

Switch Modules

User's Guide
Agilent Technologies, Inc.
Printed in Malaysia
Edition 2
September 2012 E0912
*34980-90037* 
34980-90037
Agilent Technologies

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Summary of Contents for Agilent Technologies 34937A

  • Page 1: Switch Modules

    Agilent 34937A-34939A General Purpose Switch Modules User’s Guide Agilent Technologies, Inc. Printed in Malaysia Edition 2 September 2012 E0912 *34980-90037*  34980-90037 Agilent Technologies...
  • Page 2 (Technical Data) and 12.212 (Computer Software) and, for the Department of Defense, DFARS 252.227-7015 (Technical Data - Commercial Items) and DFARS 227.7202-3 (Rights in Commercial Com- puter Software or Computer Software  Documentation). Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...
  • Page 3 Do Not Remove the Instrument Cover Only qualified, service-trained personal who are aware of the hazards involved should remove instrument covers. Always disconnect the power cable and any exter- nal circuits before removing the instrument cover. Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 4: Declaration Of Conformity

    Declaration of Conformity. • Alternately, you can go to the product web page (www.agilent.com/find/34980A), click on the Document Library tab then scroll down until you find the Declaration of Conformity link. Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 5: Table Of Contents

    Reading Cycle Count and Resetting Modules to Power-On State ....34937A 32-Channel GP Switch Module ......
  • Page 6 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 7: General Purpose Switch Modules

    34938A 28-channel 5-amp Form A 34939A 64-Channel High-Density Form A • The 34937A provides independent control of 32 relays, including: • Twenty- eight Form C relays, each rated for 1 A at 60 W per channel • Four Form A (SPST) relays, each rated for 5 A at 150 W per channel.

  • Page 8: Operating Considerations

    Hardware Power-Fail Jumper A hardware jumper on the 34937A and 34938A modules allows you to define the power- failure states for the modules’ 5 A latching relays. Depending on the position of the jumper, the 5 A relays will either open or maintain state when system power failure occurs.
  • Page 9 After a five- to ten- second delay, remove the sheet metal cover from the module and move the position of the jumper mounted on the module. See the figure below for the jumper’s location on the module. Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 10: 34937A, 34938A And 34939A Scpi Programming Examples

    4. If this command is sent to a module other than the 34937A or 34938A, “NONE” is returned (no error is generated). In particular, the position of the power- fail jumper on the 34939A module cannot be queried using this commmand.

  • Page 11: Reading Cycle Count And Resetting Modules To Power-On State

    7 and 16 for a module in slot 1. DIAGnostic:RELay:CYCLes:CLEar (@1007,1016) Example: Resetting Module(s) to power-on state (all modules) The following command resets a module in slot 4 to its power- on state. SYSTem:CPON 4 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 12: 34937A 32-Channel Gp Switch Module

    34937A 32-Channel GP Switch Module 34937A 32-Channel GP Switch Module The 34937A general- purpose switch module provides independent control • Twenty- eight Form C (SPDT) latching relays rated at 1 A • Four Form A (SPST) latching relays rated at 5 A. You can set the power- failure state for these 5 A relays (see “Hardware Power- Fail...

  • Page 13: 34937A D-Sub Connectors

    17 NC 20 NC 23 NC 26 NC 31 NO 17 Common 21 20 Common 32 23 Common 27 26 Common 22 31 Common 2 17 NO 20 NO 23 NO 26 NO Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 14: 34937T Terminal Block

    Pads for user-supplied snubber circuity to alleviate reactive transients. The circuits may consist of resistors, capacitors, varistors, or other elements as needed to reduce the switching voltage and current transients inherent in reactive circuits. Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 15: 34938A 20-Channel High-Current Gp Switch Module

    70 C. See description of the “HOT” annunciator on page 34938A Simplified Schematic Channel 001 (5A Form A) Channel 020 (5A Form A) Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 16: 34938A D-Sub Connectors

    18Common 42 20Common 50 12NO 14NO 17NO 19NO Reserved 12Common 24 14Common 46 17Common 6 19Common 12 13NO 15NO 17NO 19NO 13Common 10 15Common 16 17Common 22 19Common 28 No Connect 17 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 17: 34938T Terminal Block

    Pads for user-supplied snubber circuity to alleviate reactive transients. The circuits may consist of resistors, capacitors, varistors,  or other elements as needed to reduce the switching voltage and current transients inherent in reactive circuits. Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 18: 34939A 64-Channel High-Density Form-A Gp Switch Module

    70 C. See description of the “HOT” annunciator on page 34939A Simplified Schematic Channel 001 (1A Form A) Channel 064 (1A Form A) Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 19: 34939A D-Sub Connectors

    20 Common 51 27 Common 17 No Connect 60 7 NO 14 NO 21 NO 28 NO No Connect 65 7 Common 14 Common 47 21 Common 13 28 Common 37 No Connect 66 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...
  • Page 20 59 Common 41 No Connect 60 39 NO 46 NO 53 NO 60 NO No Connect 65 39 Common 13 46 Common 9 53 Common 45 60 Common 23 No Connect 66 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

  • Page 21: 34939T Terminal Block

    C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO C NO Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...
  • Page 22 34939A 64-Channel High-Density Form-A GP Switch Module Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...
  • Page 23 34939A connector pinouts, description, 1, simplified schematic, terminal block, wiring log, connector pinouts 34937A, 34938A, 34939A, D-sub pinouts 34937A, 34938A, 34939A, jumper, pinouts 34937A, 34938A, 34939A, power-fail jumper, programming examples, temperature sensor, Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...
  • Page 24 Index Agilent 34937A-34939A General Purpose Switch Modules User’s Guide...

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34939a

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