Discrete I/O - Multichannel, Programmable

 

Discrete I/O - Multichannel, Programmable Modules DT1 - DT6

NAI's Intelligent Function Modules provide uniquely flexible, mix & match customization options for use with our COTS hardware. Learn More

NAI's latest generation Discrete I/O Modules are offered in two versions: Standard Functionality (SF) modules (DT1, DT2, and DT3) and Enhanced Functionality (EF) modules (DT4, DT5, and DT6). All the modules feature unparalleled programming flexibility, a wide range of operating characteristics, and a unique design that eliminates the need for pull-up resistors or mechanical jumpers. The EF Modules add built-in operational functionality to provide Pulse/Frequency Period Measurements of the incoming signal (Input) and/or Pulse/Frequency arbitrary signal generation (Output).

Used on our Multifunction Embedded I/O Boards, Rugged Systems, and Single Board Computers (SBCs) offered in OpenVPX, cPCI, VME, and PCI/PCIe configurations, these modules provide interfacing solutions for almost any embedded or test application. During normal operations, continuous Background Built-in-Test (BIT) status is provided for channel health and operation feedback.

Modules DT1 and DT4

The DT1 and DT4 modules (the enhanced version) feature 24 programmable channels for either input (voltage or contact sensing with programmable, on-module pull-up/pull down current sources), or output (current source, sink, or push-pull) up to 500 mA per channel from an applied, external 3 – 60 VCC source. These modules can sense broken input connections and whether an input is shorted to +VCC or to ground. Additional features of the DT4 (Enhanced Version) are listed below.

 

Modules DT2 and DT5

The DT2 and DT5 modules (the enhanced version) feature 16 independent, isolated, programmable channels that can be used for input voltage measurements (+/-80 V), or as a bi-directional current switch (up to 500 mA per channel). When programmed as a switch with the switch closed, both the current through the switch and the voltage across the switch can be monitored. These modules include diode clamping on each channel. Clamping is useful for inductive loads, such as relays and short circuit protection. Additional features of the DT5 (Enhanced Version) are listed below.

 

Modules DT3 and DT6

The DT3 and DT6 modules (the enhanced version) feature 4 independent, high current, isolated, programmable channels that can be used for input voltage measurements (+/-100 V), or as a bi-directional current switch (up to 3 A per channel). When programmed as a switch with the switch closed, both the current through the switch and the voltage across the switch can be monitored. These modules include diode clamping on each channel. Clamping is useful for inductive loads, such as relays and short circuit protection.

Enhanced Functionality Module DT4 Features

  • 24 channels available as inputs or outputs
  • Programmable for Input (voltage or contact sensing) or Output (current source, sink or push-pull) per channel/bank
  • Ability to current share, by connecting multiple outputs in parallel, to sink/source up to 2 A per bank
  • Ability to handle high inrush current loads (for example, two #327 incandescent lamps in parallel)
  • Supports "dual turn-on" (series channel output) applications (for example, dual series "key" missile launch control)
  • Pulse Width Modulation (PWM) output mode
  • Pattern Generator output mode
  • Timing measurement of inputs with 10 μs resolution
  • Programmable debounce circuitry with selectable time delay eliminates false signals resulting from relay contact bounce
  • Built-in test runs in background constantly monitoring system health for each channel
  • Ability to sense broken input connection and if input is shorted to +V or to ground
  • Ability to read I/O voltage and output current for improved diagnostics (indicates if load is connected)

Enhanced Functionality Module DT5 Features

  • 16 channels available as inputs or outputs
  • Programmable for Input voltage or switch closure for each channel
  • Continuous background built-in-test (BIT) (during normal operation, status provided for channel health and operation feedback)
  • In bidirectional current switch mode, enhanced features can be used to trigger switch opening or closure using pulse width, number of pulses or pattern generation
  • Ability to read switch I/O voltage and current
  • Ability to handle switch closure currents of up to 625 mA DC
  • Automatic switch overcurrent protection, programmable to 625 mA max
  • Open Circuit Detection
  • Programmable debounce circuitry with selectable time delay eliminates false signals resulting from relay contact bounce
  • Supports "dual turn-on" (series channel output) applications (e.g. dual series ‘key’ missile launch control)
  • Clean, bounce-free switching

Featured article: All Discretes are not Created Equal

 

Click below for manuals and specifications:


ModuleDescriptionManual
DT124-Ch, Discrete I/O (0 to 60 VDC, 500 mA/Ch.)Module Manual - DT1
DT216-Ch, Discrete/Switch I/O (+/-80 V, 625 mA/Ch.)Module Manual - DT2
DT34-Ch, Discrete/Switch I/O (+/-100 V, 3 A/Ch.)Contact Factory at 1 (631) 567-1100
DT4Enhanced 24-Ch, Discrete I/O (0 to 60 VDC, 500 mA/Ch.)Module Manual - DT4
DT5Enhanced, 16-Ch, Discrete/Switch I/O (+/-80 V, 625 mA/ Ch.)Module Manual - DT5
DT6Enhanced 4-Ch, Discrete/Switch I/O (+/- 100 V, 3 A / Ch.)Contact Factory at 1 (631) 567-1100

Function module(s) featured in products below:


ModelBoard TypeBoard ArchitectureFunction Module SlotsSizeEthernetMaster / SlaveOn Board ReferenceOther
75G53U cPCIARM / Xilinx® Zynq3 2 x GbBoth   
64G5VMEARM / Xilinx® Zynq6 2 x GbBoth YUser application ARM processor capability
68G53U OpenVPXDual Core ARM® Cortex® A9 @ 800 MHz3 2 x GbBoth  Slot profile: SLT3-PER-1F-14.3.2 / Module profile: MOD3-PER-1F-16.3.2-2
79G5PCIe 31/2   N/A 
ModelBoard TypeProcessorFunction Module SlotsMaximum MemoryMaximum StorageVideo OptionsEthernetAvailable O/S
75ARM13U cPCI SBCXilinx® Zynq 7015 with Dual Core ARM® Cortex® A9 @ 800 MHz3512 MB DDR3L SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks®, Xilinx® PetaLinux OS and DDC-I Deos™ support
68ARM13U OpenVPX SBCXlilinx® Zynq 7015 & 7016 w/Dual Core ARM® Cortex®-A9 @800MHz3512 MB DDR3 SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River®, VxWorks® and Xilinx® PetaLinux OS Support
75PPC13U cPCI SBCNXP® QorIQ® P2041 Quad-Core e500mc Processor @ 1.2 GHz28 GB DDR3L SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks®
75INT23U cPCI SBCDual Core Intel® i7 3517UE @ 1.5 GHz28 GB DDR3L SDRAM32 GB SATAII NAND FlashVGA, HDMI, LVDS, or DVI2 x GbCentOS, Red Hat®, Linux®, and Windows® Embedded Standard 7
64ARM16U VME SBCXilinx® Zynq Dual Core ARM® Cortex® A9 @ 800 MHz6 + AC Ref512 MB DDR3L SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks® and Xilinx® PetaLinux OS support
68PPC23U OpenVPX SBCNXP® QorIQ® T2080 Quad Core @1.5 GHz2 8 GB DDR3 SDRAM32 GB SATAII NAND FlashN/A2 x GbWind River® VxWorks®
ModelPhotoBoard TypeDimensions w/Connectors (w x h x d)Volume w/Connectors (in3)Weight / lbs (fully populated)Est. Typ. Power Dissipation (W)# of Board SlotsFunction Module SlotsMax I/O PinsEthernet
NIU1AModule6.8" x 1.5" x 2.5"28.90<1.25 to 15 WN/A1592 x Gb
SIU313U cPCI4.71" x 2.35" x 8.71"96.41<5.07 to 35 W131322 x Gb
SIU333U cPCI4.71" x 4.78" x 8.71"196.10<10.014 to 75 W393222 x Gb
SIU353U cPCI7.13" x 4.78" x 8.71"296.85<15.025 to 100 W5155122 x Gb