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Countermeasures Dispensing System
Firing Pulse Test Set

The CMDS Firing Pulse Interval Test Set by ITCN is a suite of test components designed to analyze firing pulse timing from a Countermeasures Dispensing System such as the AN/ALE-40 and the AN/ALE-47. A test scenario is configured by replacing the AN/ALE-47 Countermeasures Magazine with the CM-T-47 Pulse Tester unit and connecting it to the CM-C-16 Pulse Collector unit via the front panel Data Link connectors. The CMDS Tester with 1 CM-C-16 Pulse Collector can support 16 CM-T-47 Pulse Tester units. The test scenario can be expanded by connecting another CM-C-16 unit via the expansion connector on the front panel. The CMDS Interval Tester Graphical User Interface program (GUI) provides an interface for the user to control the test runs and analyze collected data.

key features

  • Scalable, Distributed Architectures
  • Simple Windows User Interface
  • 1 millisecond Timestamp
  • Provides Dummy Load for Sequencers
  • Single Collector unit
    powers all Testers
  • ID Key pins
  • Simple RS-232 interface

key benefits

  • Allows for system-wide test for up to 16 dispensers
  • Intuitive operations for easy setup and analysis
  • Determine precise firing patter order of up to 16 dispensers
  • Allows sequencers to poll and fire as if magazines were in system.
  • No batteries required
  • Set dispenser ID values for each unit
  • Requires no special PC hardware

The CMDS Firing Pulse Interval Test Set by ITCN is a scalable suite of test components designed to analyze firing pulse timing from a Counter Measures Dispensing System.

The CMDS Test Set provides the required components to measure timing intervals between firing pulses sent to Countermeasures Dispensers.

  • CMDS Pulse Tester (CM-T-47)
  • CMDS Pulse Collector (CM-C-16)
  • CMDS Graphical User Interface (GUI)

CM-T-47 Pulse Tester

The CMDS Pulse Tester provides the interface to the firing pulses by replacing the dispenser magazines on the aircraft under test.

  • It acts as a dummy load for the system Sequencer to simulate dispenser squibs
  • It senses the firing pulse current using a preset threshold value and logs the occurrence to the Collector unit
  • Powered from Collector unit Cabling (no batteries)
  • Pulse Width 150 nsec min (Factory Adjustable)
  • Pulse Repetition Rate 4.9 kps
  • Pulse Detection Threshold Factory preset to 3A (Factory Adj. ~1A to 5A)
  • System Compatibility AN/ALE-40, AN/ALE-47

CM-C-16 Pulse Collector

The CMDS Pulse Collector Unit provides these functions:

  • A central collection point for pulses captured by up to 16 Pulse Testers
  • Timestamps pulses with 1 msec resolution
  • A connection to the User Interface running on the host PC
  • Pulse Logging 1024 Pulses per test file
  • Baud Rate 9600
  • Test Support 16 CMDS Pulse Testers
  • Trigger 5V TTL compatible output, open collector, active low signal


Power Requirements CM-C-16

  • Input Voltage 85 -265 Volts AC
  • Frequency Range 47-440 Hz
  • Fuse 2 ea., 2 Amps / 250 V Slow-Blow, 5x20mm
  • Inrush Current (typ) 30A @ 115VAC Input, 60A @ 230VAC Input

 

CM-ITS Interval Tester GUI

The CMDS Interval Tester Graphical User Interface program (GUI) provides an interface for the user to control the test runs and analyze collected data.

Specifications

PC Requirements for CM-ITS GUI

  • Processor Intel Pentium III 650Mhz/ Compatible or better
  • Memory 128 Mbytes RAM
  • Hard Disk 4 Mbytes Program Storage, 10 Mbytes minimal Trace Storage
  • Media Support CD-ROM / CD-R/ CD-R/W drive
  • Operating System Windows 2000/ XP (Requirements may vary with operating system)
  • Communications RS-232 COM port


Environmental Requirements CM-C-16/CM-T-47

  • Operation Temperature 50º to 95º F/ 10º to 35º C
  • Storage Temperature 40º to 104º F / 4º To 40º C
  • Relative Humidity (noncondensing)10% to 85%

Note: Each Tester unit receives power from the Collector via the interconnection cable/ Data Link connector. Contact ITCN to configure model numbers based on system requirements.

CMDS Test System

The Countermeasures Firing Pulse Test Set System Components

 

CM-T-47  CMDS Pulse Tester

The CMDS Pulse Tester Unit. The system can use up to 16 pulse testers at one time.

CM-C-16  CMDS Pulse Collector

The CMDS Pulse Collector is the central processing point for the pulses captured by the tester units.

CM-ITS   CMDS Interval Tester GUI

A screen shot of the CMDS user interface.



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