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Technical content

Features

˙ PXI specifications Rev. 2.2 compliant ˙ 3U Eurocard form factor, CompactPCI compliant (PICMG 2.0 R3.0) ˙ PICMG 2.1 R2.0 CompactPCI Hot Swap specifications compliant ˙ Configuration determined by terminal board ˙ Up to 32 cross-point DPDT (2 Form C) non-latching relays ˙ Contact rating w2 A switching, 2 A carrying w220 VDC, 125 VAC ˙ Onboard 1 k-sample scan list for deterministic scanning ˙ Handshaking signals for external instruments synchronization ˙ Design for safety-critical applications ˙ Hardware emergency shutdown with programmable relay safety status ˙ Watchdog timer from 1 ms to 420 s with programmable relay safety status ˙ 8 auxiliary 3.3 V/TTL digital inputs/outputs with

5 V tolerance

˙ Multiple modules synchronization through ˙ PXI trigger bus and star trigger ˙ Versatile matrix configuration with terminal board ˙ Fully software programmable ˙Operating Systems wWindows 7/10 x64/x86 ˙Driver and SDK wVB/VC++ wLabVIEW 4x8 2-Wire Matrix Module PXI-7931 Specifications Relay Characteristics ˙ Number of cross points: 32 (2-wire) ˙ Relay type: DPDT (2 Form C), non-latching ˙ Switching capacity

  • Max. switching current: 2 A
  • Max. switching voltage: 220 VDC, 125 VAC
  • Max. switching power: 60 W
  • Max. carrying current: 2 A ˙ Contact resistance: 100 mΩ max. ˙ Relay set/reset time
  • Operate time: 4 ms max.
  • Release time: 4 ms max. ˙ Expected life
  • Mechanical life: 108 operations min.
  • Electrical life : 5x105 operations min. (1 A @ 30 VDC, resistive load) ˙ Data transfer: programmed I/O Auxiliary Digital I/O ˙ Numbers of channel: 8 inputs/outputs ˙ Compatibility: 3.3 V/TTL (5 V tolerant) Handshaking Signals ˙ Programmable polarity ˙ Logic level: 3.3 V/TTL (5 V tolerant) ˙ TRG_IN source: AUX1, PXI trigger bus, PXI star trigger input ˙ S_ADV destination: AUX0, PXI trigger bus Safety Functions ˙ Emergency shutdown
  • Logic level: 3.3 V/TTL (5 V tolerant)
  • Active: logic low ˙ Watchdog timer
  • Base clock available: 10 MHz, fixed
  • Counter width: 32-bit General Specifications ˙ I/O Connector: 62-pin D-sub male ˙ Operating temperature: 0˚C to 55˚C ˙ Storage temperature: -20˚C to 70˚C ˙ Relative humidity: 5% to 85% non-condensing ˙ Power requirements: (when all relays are ON) ˙ Dimensions 160 mm x 100 mm (not including connectors) Certifications ˙ EMC/EMI: CE, FCC Class A Terminal Boards & Cables ˙TB-6231-01 Multiplexer Switch Terminal Board with One 62-Pin D-Sub Female Connector ˙ACL-10262 62-pin D-sub male/female cable, 1 M (For more information about mating cables, please refer to P4-28.)

Ordering Information

˙ PXI-7931 4x8 2-Wire Matrix Module * Failure rate indicates the lower limit of switching capacity of a relay contact at a reliability level of 60% +5 V 1 A +3.3 V 400 mA Device PXI-7931 Multiplexer One 4x8, Two 4x4, One 2x16, Two 2x8, Four 2x4 Source Wire 2-wire Pin Assignment 22. C8+ 52. C4- 32. C13+ 10. R4- 53. C5+ 33. C13- 11. R5+ 54. C5- 34. C14+ 12. R5- 55. C6+ 35. C14- 13. R6+ 56. C6- 36. C15+ 14. R6- 57. C7+ 37. C15- 15. R7+ 59. N/C 39. N/C 17. N/C 60. AUX3 40. AUX4 18. AUX2/SHDNn 61. AUX6 41. +5Vout 19. AUX5 62. AUX7 42. AUX1/TRG_IN 20. GND 21. AUX0/S_ADV 2x4x4 configuration Updated 12-23, 2019. ©2019 ADLINK Technology, Inc. All Rights Reserved. All specifications are subject to change without further notice.