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COSA® Selection Guide
Shortform Selection Guide Of Preferred COSA Products

Chip Detector and Fuzz Burn

NAI's chip detector smart function modules are a magnetic-electrical device that provides a reliable method of detecting impending failure of bearings and gears and intended to be used as a maintenance time gauge or flag risk of imminent mechanical subsystem failure. As ferrous metallic particles are attracted to the sensor and begin to bridge the gap between the two contacts, the chip sensor circuit detect resistance drops. NAI's chip detection smart function modules continuously measures the sensor gap resistance and when the sensor gap resistance falls below the programmable FAULT resistance threshold, the Fuzz Burn charge circuit is triggered (programmable, up to 10x attempts) to ‘burn-off’ normal and typical amounts of metallic sludge (fuzz).

CD1
6 Chip Detection and Burn Channels

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Ethernet Switch

NAI’s ethernet switch smart function modules provide 10/100/1000Base-T Ethernet ports. These modules feature one 10/100/1000 BaseT Ethernet maintenance port interface, one RS-232 maintenance/console port interface, and one Fiber-Optic interface with four 10 Gb ports. It also provides numerous L2 and L3 networking, quality of service (QoS) and security features.

ES2
Managed Ethernet Switch with L2/L3 Layer Support and Fiber Optic option

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Serial Communications

NAI’s serial communication smart function modules provide up to 8 high-speed, programmable RS-232, RS-422, RS-485, non-isolated communication channels. Each channel is programmable for either Serial Communications (SC) protocol or General Purpose I/O (GPIO) modes as either RS-422/485 (differential) or RS-232 (single ended) hardware level interfaces. Each channel has one Transmit and one Receive signal pair (±) available as applicable. Synchronous (SYNC) communications mode (added feature) automatically configures the clock (clk) signal(s) on the companion pair channel: CH1-CH4 clk companion channels are CH5-CH8, respectively.

SC1
4 Serial Communication Channels, multi-mode programmable, non-isolated

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SC2
4 Serial Communication Channels, multi-mode programmable, isolated

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SC3
8 Serial Communication Channels, programmable RS-232/422/485 non-isolated

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SC7
4 Serial Communication Channels, multi-mode programmable, non-isolated

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Strain Gage Measurement

While there are several methods of measuring mechanical strain, the most common is with a strain gage. The gage provides electrical resistance that varies in proportion to the amount of strain in the device. The most widely used gage is the bonded metallic strain gage. To measure such small changes in resistance, strain gages are almost always used in a bridge configuration with a voltage excitation source. The general Wheatstone bridge (conventional, 4-arm bridge) consists of four resistive arms with an excitation voltage, Vexc, that is applied across the bridge. NAI's strain gage smart function module uses four independent, isolated input A/Ds. This module is designed to read output signals from a completed Wheatstone bridge (i.e., it can be used with one or more strain gage elements as a completed 4-arm Wheatstone bridge) and is commonly used in applications requiring pressure, weight, and stress transducers interface/measurement.

SG1
4 Channels, Strain Gauge Measurement

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Time-Triggered Ethernet

NAI's Time Triggered Ethernet (TTE) smart function modules are certifiable, single-port, tri-redundant, deterministic Ethernet communications interface module that supports TTTech’s certifiable TTEthernet® End System product consisting of three traffic classes: SAE AS6802 (Time-Triggered Ethernet), ARINC 664 Part 7 (Avionics Full-Duplex Switched Ethernet (AFDX®), and/or IEEE 802.3 best-effort protocol. By supporting all three traffic classes, NAI's smart function modules are the ideal solution for current users of IEEE 802.3 Ethernet, who plan to upgrade to Deterministic Ethernet (ARINC 664 Part 7 (AFDX®) or Time-Triggered Ethernet SAE AS6802) protocols in the future at any time without changing hardware.

TE2
Time-Triggered Ethernet / ARINC 664 Part 7 (AFDX®) / IEEE 802.3 Ethernet Deterministic Communications

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Variable Reluctance

NAI's variable reluctance (VR) and general-purpose pulse counters measure from a wide voltage input range variable reluctance (VR) signal or general-purpose pulse counter measurement. Channels can be programmed to operate individually or combined in pairs. NAI's VR smart function modules are ideal for speed sensing for aircraft, marine or automotive crankshafts, camshafts, brake or gear rotors, transmission shafts, etc. and is uniquely designed to process signals as a general-purpose counter, that can operate and process a wide variety of AC and DC input signals.

VR1
8 Channels, Differential Input
  • No. of Channels 8 Channels
  • Operation Mode VR Pulse Timing & Count, GP Pulse Counter, Individual channel or in paired mode
  • Frequency 100 kHz
  • Input Voltage Range ±25 mV to ±100 V (minimum to be characterized)
  • Input Voltage Protection Signal clamped at ±110 V
  • Input Pulse Resolution 1 ns
  • Power +5 VDC @ 925 mA, max.

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AC Reference

NAI’s AC Reference smart function modules are used to provide an AC signal source for synchro, resolver LVDT and RVDT devices. All synchro, resolver, LVDT, and RVDT measurement and simulation smart function modules use transformers whose main primary-to-secondary coupling is varied by physically changing (or, in simulation, commanding) the relative orientation of the two windings. For operation, the primary winding of these transformers is excited by an alternating current, and electromagnetic induction causes current to flow in the secondary winding. Windings are fixed at certain characteristic electrical angles to each other on the stator. NAI offers three smart function modules that provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.

AC2
2 Channels, 2-28 Vrms, 47 Hz-20 kHz (max. range), programmable
  • No. of Channels 2 Channels
  • Frequency 47 Hz to 20 kHz, programmable with 0.1 Hz steps
  • Frequency Accuracy ±0.1% of programmed frequency or ±1 Hz (whichever is greater)
  • Voltage Output 2 Vrms to 28 Vrms, programmable with a resolution of 0.1 V, 2.0 to 28.0 Vrms or 47 Hz to 20 kHz frequency range
  • Power (max.) 5 VDC at 10 mA, ±12 VDC at 150 mA (Quiescent, no load), Note: Add ±12 VDC at 46 mA for every 1 VA Load.

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AC3
2 Channels, 28-115 Vrms, 47 Hz-2.5 kHz (max. range) programmable
  • No. of Channels 2 Channels
  • Frequency 47 Hz to 2.5 kHz, programmable with 0.1 Hz steps
  • Frequency Accuracy ±0.1% of programmed frequency or ±1 Hz (whichever is greater)
  • Voltage Output 28 Vrms to 115 Vrms, programmable with a resolution of 0.1 V, 28.0 to 115.0 Vrms or 47 Hz to 2.5 kHz frequency range
  • Power (max.) 5 VDC at 10 mA, ±12 VDC at 150 mA (Quiescent, no load), Note: Add ±12 VDC at 46 mA for every 1 VA Load.

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Analog-to-Digital

Analog to Digital (A/D) modules translate analog electrical signals for data processing purposes. NAI offers nine A/D smart function modules. The ADx smart function modules provide fast, accurate and reliable conversion performance ideally suited for military, industrial, and commercial applications. A variety of A/D converters with available channels, architecture type and sampling rates are available to meet your circuit design needs.

AD1
12 A/D Channels (±1.25 to ±10.0 VDC FSR); 24-bit Sigma-Delta
  • No. of Channels 12 Channels
  • ADC Type/Architecture Δ-Σ / Individual (Compare Types)
  • Key Characteristics Range (max.) ±10 V
  • Effective Resolution (Bits) 24
  • Sampling Rate (max.) 256 kHz / Channel

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AD2
12 A/D Channels (±100V max); 24-bit Sigma-Delta
  • No. of Channels 12 Channels
  • ADC Type/Architecture Δ-Σ / Individual
  • Key Characteristics Range (max.) ±100 V
  • Effective Resolution (Bits) 24
  • Sampling Rate (max.) 256 kHz / Channel

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AD3
12 A/D Channels (±25mA FSR); 24-bit Sigma-Delta
  • No. of Channels 12 Channels
  • ADC Type/Architecture Δ-Σ / Individual
  • Key Characteristics Range (max.) ±25 mA
  • Effective Resolution (Bits) 24
  • Sampling Rate (max.) 256 kHz / Channel

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AD4
16 A/D Channels (±1.25 to ±10.0 VDC FSR or ±25 mA) ; 16-bit SAR, 8 Chx2 A/D multiplexed
  • No. of Channels 16 Channels
  • ADC Type/Architecture SAR / Multiplexed (2 x 8 Ch.)
  • Key Characteristics Range (max.) ±10 V / ±25 mA
  • Effective Resolution (Bits) 16
  • Sampling Rate (max.) 500 kHz / Aggregate per bank of 8 Channels

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AD5
16 A/D Channels (±6.25 to ±50.0 VDC FS); 16-bit SAR, 8 Chx2 A/D multiplexed
  • No. of Channels 16 Channels
  • ADC Type/Architecture SAR / Multiplexed (2 x 8 Ch.)
  • Key Characteristics Range (max.) ±50 V
  • Effective Resolution (Bits) 16
  • Sampling Rate (max.) 500 kHz / Aggregate per bank of 8 Channels

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AD6
16 A/D Channels (12.5 to 100.0 VDC FS); 16-bit SAR, 8 Chx2 A/D multiplexed
  • No. of Channels 16 Channels
  • ADC Type/Architecture SAR / Multiplexed (2 x 8 Ch.)
  • Key Characteristics Range (max.) ±100 V
  • Effective Resolution (Bits) 16
  • Sampling Rate (max.) 500 kHz / Aggregate per bank of 8 Channels

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ADE
16 A/D Channels (±10 VDC); 16-bit SAR per channel
  • No. of Channels 16 Channels
  • ADC Type/Architecture SAR / Individual (Compare Types)
  • Key Characteristics Range (max.) ±10 V
  • Effective Resolution (Bits) 16
  • Sampling Rate (max.) 200 kHz / Channel

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ADF
16 A/D Channels (±100 VDC); 16-bit SAR per channel
  • No. of Channels 16 Channels
  • ADC Type/Architecture SAR / Individual
  • Key Characteristics Range (max.) ±100 V
  • Effective Resolution (Bits) 16
  • Sampling Rate (max.) 200 kHz / Channel

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ADG
16 A/D Channels (±25 mA); 16-bit SAR per channel
  • No. of Channels 16 Channels
  • ADC Type/Architecture SAR / Individual
  • Key Characteristics Range (max.) ±25 mA
  • Effective Resolution (Bits) 16
  • Sampling Rate (max.) 200 kHz / Channel

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ARINC Communications

NAI’s ARINC 429/575 smart function modules provide up to twelve programmable channels. ARINC 429 is a data transfer standard for aircraft avionics. ARINC 575 is an equipment characteristic for a Digital Air Data System (DADS) that provides essential air-data information for displays, autopilots, and other flight controls and instrumentation on commercial and transport-type aircraft. ARINC 568/579 smart function modules provides a communications interface with 2 channels. ARINC 568 is an equipment characteristic for Distance Measurement Equipment (DME). ARINC 579 is an equipment characteristic for a VHF Omnidirectional Radio range (VOR) short range navigation system.

AR1
12 Channels, ARINC 429/575 Communications
  • No. of Channels 12 Channels
  • Frequency 100 kHz or 12.5 kHz operation (programmable)
  • Input/Output 12 channels, programmed for either Rx or Tx per channel.
  • Message Buffer Rx/Tx FIFO buffering; Label/SDI filtering
  • ARINC Standard ARINC 429 or 575 programmable/channel

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AR2
2 Channels, ARINC 568/579 Communications
  • No. of Channels 2 Channels
  • Channel 1 Rx and Tx (independent signal lines ARINC 568)
  • Channel 2 Rx or Tx (programmable ARINC 579)
  • Receive/Transmit Buffers 32-bit data buffer / 1024 deep
  • ARINC Standard ARINC 568/579 programmable/channel

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CANBus Communications

NAI’s CANBus smart function modules provide independent, isolated channels of CAN serial data bus links, conforming to the ISO 11898 International Standard. All CAN nodes can transmit data and several CAN nodes can request the bus simultaneously. NAI offers three CANBus smart function module models with different levels of support for CANBus 2.0 A and B protocols and CANBus SAE J1939 protocols – offering features including: Fully compliant ANSI C network: Transport and DataLink layers, Adjustable baud rate with speeds up to 1 Mbit/sec and MilCAN compliance.

CB1
8 CANBus Channels, CAN 2.0 A/B Protocol
  • No. of Channels 8 Channels
  • CAN Protocol Version 2.0 Part A/Part B
  • Data Rate Programmable Up to 1 Mbps per channel.
  • Data Length 0-250 bytes

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CB2
8 CANBus Channels, J1939 Protocol
  • No. of Channels 8 Channels
  • CAN Protocol Version SAE J1939
  • Data Rate Programmable Up to 500 kbps per channel
  • Data Length 0-250 bytes

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CB3
8 CANBus Channels, CAN 2.0 A/B Protocol or J1939 Protocol
  • No. of Channels 8 Channels
  • CAN Protocol Version 2.0 Part A/Part B or Version SAE J1939, Programmable by channel
  • Data Rate Programmable Up to 500 kbps per channel
  • Data Length 0-250 bytes

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MIL-STD-1553B

MIL-STD-1553 is a military standard published by the United States Department of Defense that defines the mechanical, electrical, and functional characteristics of a serial data bus. It features a dual, redundant, balanced-line, physical layer; a (differential) network interface; time division multiplexing; half-duplex command/response protocol; and up to 31 remote terminals (devices). NAI’s MIL-STD-1553 communication smart function modules provide programmable 1, 2 or 4-channel and dual-redundant in transformer-coupled or direct-coupled interfaces and possess an improved assisted mode.

CM5
Combination Module: 2 Ch. Dual-Redundant MIL-STD-1553 & 8 Ch. ARINC 429/575 Communications Interfaces
  • No. of Channels (MIL-STD-1553) 2 Channels
  • UI Onboard RAM Three 1K words FIFOs per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT
  • No. of Channels (ARINC) 8 Channels
  • Input/Output (ARINC) Programmed for either Rx or Tx per channel
  • Frequency 100 kHz or 12.5 kHz operation (programmable)
  • Buffers 255 message FIFO Rx or Tx FIFO buffering or scheduled transmits; SDI/Label Filtering
  • ARINC Standard ARINC 429 or 575 programmable/channel

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CM8
Combination Module: 2 Ch. MIL-STD-1553 & 12 Ch. Discrete I/O
  • No. of Channels (MIL-STD-1553) 2 Channels
  • Onboard RAM 128 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT
  • No. of Channels (Discrete I/O) 12 Channels
  • Input Modes Voltage, Contact Sensing
  • Input Range 0 to 60 VDC
  • Output Modes Current Source, Sink, Push-Pull
  • Output Voltage Range 0 to 60 VDC
  • Output Current 0.5 A maximum (28 V Vcc typical) per channel

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FTA
1 Channel, MIL-STD-1553, Dual Redundant, Transformer Coupled, Assisted Mode Capable (AMC)
  • No. of Channels 1 Channel
  • Onboard RAM 128 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT

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FTB
2 Channels, MIL-STD-1553, Dual Redundant, Transformer Coupled, Assisted Mode Capable (AMC)
  • No. of Channels 2 Channels
  • Onboard RAM 128 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT

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FTC
4 Channels, MIL-STD-1553, Dual Redundant, Transformer Coupled, Assisted Mode Capable (AMC)
  • No. of Channels 4 Channels
  • Onboard RAM 64 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT

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FTD
1 Channel, MIL-STD-1553, Dual Redundant, Direct Coupled, Assisted Mode Capable (AMC)
  • No. of Channels 1 Channel
  • Onboard RAM 128 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT

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FTE
2 Channels, MIL-STD-1553, Dual Redundant, Direct Coupled, Assisted Mode Capable (AMC)
  • No. of Channels: 2 Channels
  • Onboard RAM 128 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT

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FTF
4 Channels, MIL-STD-1553, Dual Redundant, Direct Coupled, Assisted Mode Capable (AMC)
  • No. of Channels 4 Channels
  • Onboard RAM 64 K words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BM/RT

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Digital-to-Analog

Digital to Analog (D/A) modules convert digital electrical signals to an analog signal. NAI offers for D/A smart function modules offering from four (high voltage) to sixteen output channels. The DAx smart function modules also include D/A FIFO buffering for greater control of the output voltage and signal data. Once enabled and triggered, the D/A FIFO buffer accepts, stores, and outputs the voltage (and/or current) commands for applications requiring simulation of waveform generation (single or periodic).

DA1
12 D/A Outputs (±10 VDC or ±25 mA)
  • No. of Channels 12 Channels
  • Output Modes Voltage Control Mode (Bipolar/Unipolar), Current Control Mode (Bipolar)
  • Output Range (V-control mode) ±10 VDC, 0 to 10 VDC
  • Output Range (I-control mode) 0 to ±25 mA
  • Linearity Error 10 µs typ. (15 µs max.)
  • Gain Error ±0.03% FS range @ 25C

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DA2
16 D/A Outputs (+10 VDC or +10 mA)
  • No. of Channels 16 Channels
  • Output Modes Voltage Control Mode (Bipolar/Unipolar)
  • Output Range (Bipolar) ±10 VDC, ±5 VDC, ±2.5 VDC
  • Output Range (Unipolar) 0 to 10 VDC, 0 to 5 VDC
  • Linearity Error ±0.10% FS range (FSR) over temperature
  • Gain Error ±0.10% FSR ± 0.02% x (maximum current in load (mA)), per channel

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DA3
4 (High Current) D/A Outputs (±40 VDC or +100 mA)
  • No. of Channels 4 Channels
  • Output Modes Voltage Control Mode (Bipolar/Unipolar), Current Control Mode (Bipolar)
  • Output Range (V-control mode) ±40 VDC or 0 to 40 VDC
  • Output Range (I-control mode) ±100 mA
  • Linearity Error ±0.1% FS range over temperature
  • Gain Error ±0.05% FS range

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DA4
4 (High Voltage) D/A Outputs (+20 VDC to +80 VDC)
  • No. of Channels 16 Channels
  • Output Modes Voltage Control Mode (Bipolar/Unipolar)
  • Output Range ±20 to ±80 VDC
  • Linearity Error ±0.15% FS range (FSR) over temperature
  • Gain Error ±0.08% FS range

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Digital IO - Differential Transceiver

Differential transceivers increase resistance to noise by creating two complementary signals. These complementary signals produced on balanced lines double noise immunity by creating lower power requirements due to lower supply voltages. NAI's modules are offered in two versions: the Standard Functionality (SF) module and the Enhanced Functionality (EF) module. Both modules feature 16 individual RS422/RS485 I/O channels that are programmable for either input or output, and include extensive diagnostics.

DF1
16 Differential I/O Multi-Mode Transceiver Channels
  • No. of Channels 16 Channels
  • Receiver Input Levels (RS-422) -10 V to 10 V
  • Receiver Input Levels (RS-485) -7 V to 12 V
  • Driver Output Voltage -0.25 V to 5 V max.

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DF2
Enhanced 16 Differential I/O Multi-Mode Transceiver Channels
  • No. of Channels 16 Channels
  • Receiver Input Levels (RS-422) -10 V to 10 V
  • Receiver Input Levels (RS-485) -7 V to 12 V
  • Driver Output Voltage -0.25 V to 5 V max.

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LVDT RVDT Measurement and Simulation

A linear variable differential transformer (LVDT) is a type of electrical transformer/transducer used for measuring linear displacement (position). A counterpart to this device used for measuring rotary displacement is called a rotary variable differential transformer (RVDT). The RVDT is like an LVDT in that it measures a positional displacement, however, the displacement, which is still a linear proportional function, is based on rotary instead of linear positional movement. Both deliver signals proportional to the linear displacement of the moveable core. NAI offers five smart function modules that convert these signals to a digital output corresponding to position in a variety of operating parameters. An LVDT/RVDT simulator is used to convert digital positional commands to corresponding AC signals.

DLx
3, 2 or 1 Channels, 0.5 VA, 1.5 VA or 3.0 VA
  • No. of Channels Multi-Channel
  • Frequency Range Model dependent
  • Resolution 16-bits (.001526% FS)

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LD1
4 Channels, 2-28 Vrms Input, 47 Hz-1 kHz
  • No. of Channels 4 Channels
  • Frequency Range 47 Hz - 1 kHz
  • Resolution: 24-bit
  • Accuracy (±) ±0.025% FS 3-wire or 4-wire and 2-wire w/ compensated phase, ±0.050% FS for 2-wire, uncompensated phase

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LD2
4 Channels, 2-28 Vrms Input, 1 kHz-5 kHz
  • No. of Channels 4 Channels
  • Frequency Range 1 kHz-5 kHz
  • Resolution 24-bit
  • Accuracy (±) ±0.025% FS 3-wire or 4-wire and 2-wire w/ compensated phase, ±0.050% FS for 2-wire, uncompensated phase

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LD3
4 Channels, 2-28 Vrms Input, 5 kHz-10 kHz
  • No. of Channels 4 Channels
  • Frequency Range 5 kHz-10 kHz
  • Resolution 24-bit
  • Accuracy (±) ±0.025% FS 3-wire or 4-wire and 2-wire w/ compensated phase, ±0.050% FS for 2-wire, uncompensated phase

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LD4
2 Channels, 28 Vrms Input, 10 kHz-20 kHz
  • No. of Channels 4 Channels
  • Frequency Range 10 kHz-20 kHz
  • Resolution 24-bit
  • Accuracy (±) ±0.025% FS 3-wire or 4-wire and 2-wire w/ compensated phase, ±0.050% FS for 2-wire, uncompensated phase

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LD5
4 Channels, 28-90 Vrms Input, 47 Hz-1 kHz
  • No. of Channels 4 Channels
  • Frequency Range 47 Hz-1 kHz
  • Resolution 24-bit
  • Accuracy (±) ±0.025% FS 3-wire or 4-wire and 2-wire w/ compensated phase, ±0.050% FS for 2-wire, uncompensated phase

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Synchro Resolver Measurement and Simulation

Synchros and Resolvers are transformer-type voltage/current transducers that convert a shaft or other rotating device's angular position and/or velocity to a multi-wire AC electrical signal. Both deliver signals proportional to the Sine and/or Cosine of the shaft angle. A Resolver-to-Digital or a Synchro-to-Digital simulator is used to convert digital angle/velocity commands to corresponding Synchro/Resolver AC signals. NAI offers five smart function modules that cover the range of excitation voltages/frequency, include extensive field-parameter programmability, and provide a full operating envelope choice for interfacing to virtually any type Synchro or Resolver. A Resolver-to-Digital or a Synchro-to-Digital converter is used to convert these signals to a digital output corresponding to the shaft angle and/or velocity.

DSx
1, 2, or 3 Channels @ 0.5 VA, 1.5 VA or 3.0 VA
  • No. of Channels Multi-Channel
  • Frequency Range Model dependent
  • Resolution 16-bits (.0055°)
  • Accuracy (±) ±1 arc-minute (.017°) for 2, 3-channel; ±3.5 arc-minutes for single-channel (no load to full load)
  • Power (max.) 5 VDC at 570 mA; ±12 VDC at 160 mA (no-load) per channel. (Add 2.9 watts of ±12 VDC for every VA of output per channel). Therefore, a 1.5 VA Load adds ±12 V 181 mA average, or 288 mA peak per channel. External ±12 V input power can be utilized.

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SDx
2-28 Vrms Input, 2-115 Vrms Exc, 47 Hz - 1 kHz Freq
  • No. of Channels 4 Channels
  • Frequency Range SD1/SD5: 47 Hz - 1 kHz, SD2: 1 kHz-5 kHz, SD3: 5 kHz-10 kHz, SD4: 10 kHz-20 kHz
  • Resolution 24-bit
  • Accuracy (±) ±1 arc-minute for single-speed inputs; ±1 arc-minute divided by the gear ratio for two-speed inputs

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Discrete IO - Multichannel,Programmable

Discrete I/O multichannel programmable modules provide interfacing solutions for almost any embedded or test application. NAI's discrete I/O modules are offered in two versions: Standard Functionality (SF) modules and Enhanced Functionality (EF) modules. 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).

DT1
24 Ch , Discrete I/O (0 to 60 VDC, 500 mA/Ch.)
  • No. of Channels 24 Channels
  • Input Modes Voltage, Contact Sensing
  • Input Range 0 to 60 VDC
  • Output Modes Current Source, Sink, Push-Pull
  • Output Voltage Range 0 to 60 VDC
  • Output Current 0.5 A maximum (28 V Vcc typical) per channel

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DT2
16 Discrete/Switch I/O Channels (±80 V, 625 mA/Ch.)
  • No. of Channels 16 Channels
  • Input Modes Voltage Input, Switch
  • Input Range ±80 V (peak) / ±60 V (typical)
  • Switch Format Isolated bidirectional (AC/DC) MOSFET Switch
  • Switch Current 0-625 mA per channel (load determined) / (±80 V peak)

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DT4
Enhanced 24 Discrete I/O Channels (0 to 60 VDC, 500 mA/Ch.)
  • No. of Channels 24 Channels
  • Input Modes Voltage, Contact Sensing
  • Input Range 0 to 60 VDC
  • Output Modes Current Source, Sink, Push-Pull
  • Output Voltage Range 0 to 60 VDC
  • Output Current 0.5 A maximum (28 V Vcc typical) per channel

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DT5
Enhanced 16 Discrete/Switch I/O Channels (±80 V, 625 mA/Ch.)
  • No. of Channels 16 Channels
  • Input Modes Voltage Input, Switch
  • Input Range ±80 V (peak) / ±60 V (typical)
  • Switch Format Isolated bidirectional (AC/DC) MOSFET Switch
  • Switch Current 0-625 mA per channel (load determined) / (±80 V peak)

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MIL-STD-1760

Based on the MIL-STD-1553 signal and interface backbone, MIL-STD-1760 defines a standardized electrical interface to address additional aircraft weapons stores management and as such, includes some special requirements. NAI’s MIL-STD-1760 communication smart function modules meet the operational requirements within the general specifications of MIL-STD-1760 as applied to an integrated I/O function module and include special designed holt transceivers to ensure signal parameter operation and integrity. Two smart function module models are available providing programmable channels, dual-redundant and transformer-coupled interfaces.

FTJ
1 Channel, MIL-STD-1553/1760 Communications Interface
  • No. of Channels 1 Channel
  • Onboard RAM 64k words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BC/RT

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FTK
2 Channels, MIL-STD-1553/1760 Communications Interface
  • No. of Channels 2 Channels
  • Onboard RAM 64k words onboard memory per channel
  • Operational Modes Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), or BC/RT

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IEEE 1394 (FireWire)

NAI’s FireWire smart function modules provide IEEE 1394 (Firewire) high-speed serial communications. Two models are available from NAI and provide a direct PCIe interface to the local (on-board) processor, or, an external host processor for board platforms that support external PCIe connectivity. These module(s) are not supported with the classic memory register-based NAIBrd Software Support Kit (SSK) API libraries and support device control and management via standard native OS (Linux) FireWire device driver.

FW1
Dual-Channel, Tri-port per channel, for extended cabling up to 20 meters
  • Channel Capacity (maximum) 2-Channel, Tri-port per channel
  • IEEE 1394b Compatibility IEEE 1394b / AS5643 Hardware Compatible, SW stack protocol (pending)
  • Activity Detect Cable ports monitor line conditions for active connection to remote node
  • Transceiver Line Interface Module (TLIM) Optional for interface cable lengths up to 20 m

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FW2
Dual-Channel, Tri-port per channel, for extended cabling up to 4.5 meters
  • Channel Capacity (maximum) 2-Channel, Tri-port per channel
  • IEEE 1394b Compatibility IEEE 1394b / AS5643 Hardware Compatible, SW stack protocol (pending)
  • Activity Detect Cable ports monitor line conditions for active connection to remote node
  • Transceiver Line Interface Module (TLIM) Direct connect (no TLIM) for interface cable lengths up to 4.5 m

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Thermocouple and RTD Measurement

NAI's thermal measurement smart function modules provide a thermocouple (TC) and/or resistance temperature detector (RTD)The TR1 provides eight channels which can be individually programmed as a Thermocouple (TC) or a Resistance Temperature Detector (RTD) measurement interface. NAI offers 3 thermal measurement smart function modules. Each are individually configurable for up to 8 isolated measurement channels. TC smart function modules can interface with virtually all thermocouple-type NIST temperature ranges. RTD smart function modules can interface to two, three and four-wire platinum RTD sensor configurations.

RT1
8 Channels, RTD Measurement
  • No. of Channels 8 Channels
  • Update Rate Each channel is updated at 5 Hz.
  • Resolution 24-bits per channel
  • Accuracy (±) ±0.1% of full-scale value at 5 samples per second (4-wire mode only), ±0.2% of full-scale value at 5 samples per second (3-wire mode only), ±1.2% of full-scale value at 5 samples per second (2-wire mode only)
  • Interface 4, 3, or 2-wire RTD interface capability. Specifically designed for use with 100Ω, 500Ω and 1000Ω RTDs, or any RTD whose maximum operating resistance is less than 4000Ω.

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TC1
8 Channels Thermocouple, LV A/D
  • No. of Channels 8 Channels
  • Update Rate Programmable between 3-4800 Hz
  • Resolution 0.01° (programmed for temperature)
  • Accuracy (±) Based on minimum update rate and w/thermocouple block I/F compensation; ±0.2° C (Type J/N), ±0.3° C (Type K), ±0.3° C (Type T/E), ±0.3° C (Type R/S), ±0.9° C (Type B), ± 0.2% FSR (programmed for raw A/D digital output)
  • Interface Independent differential input channels

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TR1
Independent 24-bit Sigma-Delta type (one for each channel)
  • No. of Channels 8 Channels
  • Update Rate Programmable between 3- 4800 Hz
  • Resolution 0.01° typ. (programmed for temperature, thermocouple selection dependent)
  • Accuracy (±) Based on minimum update rate and w/thermocouple block I/F compensation; ±0.2° C (Type J/N), ±0.3° C (Type K), ±0.3° C (Type T/E), ±0.3° C (Type R/S), ±0.9° C (Type B), ± 0.2% FSR (programmed for raw A/D digital output)
  • Interface Independent differential input channels.

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Relay

NAI’s Relay Modules provide multichannel, signal switching capabilities up to 220 VDC / 250 VAC at 2 A maximum (cumulative maximum switching power 60 W / 62.5 VA per channel). These two mechanical relay-interface modules feature four individual single-pole, user SPDT Form C (changeover/break-before-make type) relays (channels). Each channel has a common input terminal (C), a normally closed output terminal (N/C), and a normally open (N/O) output terminal. The channel either energizes or de-energizes the relays (close or open) so that the signal provided on (C) may be switched/directed to either the (N/C) or (N/O) terminals.

RY1
4 Relay Channels, Non-latching
  • Module Type Non-Latching Relay
  • No. of Channels 4 Channels
  • Switching Voltage 220 VDC 250 VAC max. (with resistive load)
  • Switching Current 2 A max.
  • Contact Type/Material Bifurcated / PdRu + Au covered

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RY2
4 Relay Channels, Latching
  • Module Type Latching Relay
  • No. of Channels 4 Channels
  • Switching Voltage 220 VDC 250 VAC max. (with resistive load)
  • Switching Current 2 A max.
  • Contact Type/Material Bifurcated / PdRu + Au covered

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Digital IO - TTL,CMOS

TTL offers high switching speed and relative immunity to noisy systems. CMOS sensors provide image sensing technology by converting light waves into signals that are small bursts of current. These waves can be light or other electromagnetic radiation. NAI's TTL/CMOS Modules are offered in two versions: our Standard Functionality (SF) an Enhanced Functionality (EF) module. The transistor-transistor logic (TTL) employs transmitters with multiple emitters in gates having more than one input.

TL1
24 TTL Channels, Programmable I/O
  • No. of Channels 24 Channels
  • Input Levels: TTL/CMOS, single ended inputs, 100 kΩ pull down resistor
  • Output Levels TTL/CMOS, single ended outputs (internal or external VCC selectable)

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TL2
24 TTL Channels, Enhanced, Programmable I/O
  • No. of Channels 24 Channels
  • Input Levels TTL/CMOS, single ended inputs, 100 kΩ pull down resistor
  • Output Levels TTL/CMOS, single ended outputs (internal or external VCC selectable)

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