Compact and lightweight (weighing around 4kg), this equipment allows you to detect if the MIL-STD-1553 databus harness has been damaged or incorrectly wired during installation.
Operation:
A Databus wiring harness consists of a main bus line and several stub lines to which various aircraft equipment is connected: onboard computers, temperature sensors, navigation system, IFF (Identification Friend or Foe) system, and weapons systems. The signal that travels through the wiring harness transmits the operational command to the different equipment.
The test equipment developed by AXON' successively checks all the Stub lines of the harness and in particular the following electrical characteristics: attenuation, polarity (phase), transformer resistance, presence of a short circuit between the pairs and the shielding mesh.
The portable test equipment consists of three elements: a signal generator, a recording base, and a calibration kit. The latter allows confirmation that the equipment is functioning correctly before performing the test measurements.
The generator is connected to the main bus line and injects a signal into the harness.
Compared to other test equipment, this equipment works with a sinusoidal signal instead of pulsed waves. This technique allows for a much more precise measurement.
Simultaneously, the generator wirelessly transmits information about the characteristics of the emitted signal to the measurement base via HF 433 MHz.
The measurement base will use this information to analyze the quality of the signal received on the stub line to which it is connected.
The metering station is connected sequentially to all subscriber lines. Thanks to the embedded PC running Windows XP, the station analyzes the received signal. A measurement takes only 10 seconds for each subscriber. The test result is displayed on the 8.4-inch touchscreen.
Two USB outputs allow this information to be exported to a printer or saved as an HTML file. The station can also be connected to a local Ethernet network to download and read the test files.
