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Categories: T&M, Miscellaneous Modules
Manufacturer: Tektronix
Model: 73A-455
Condition: Used
Seller: Alltest
Tektronix 73A-455 Dual Ch.1553 Tester Module
In stockQuantity: 4
The 73A-455 MIL-STD-1553A/B bus simulator module is a printed circuit board assembly for use in a card cage conforming to the VXIbus specification, such as the 73A-021 used in the CDS 73A IAC system. It allows the system controller in an ATE system to communicate with and test devices that conform to the MIL-STD-1553A/B data bus used in many military aircraft and communications systems.
The 73A-455 module consists of two identical VXIbus instruments in a single-slot VXIbus C-size package. Each of the two separate and independent channels, labeled A and B, has its own VXIbus logical address, its own interrupt, and a complete set of controls and indicators. Each channel must be individually programmed and all switches on each channel must be properly set.
The 73A-455 has three modes of operation for each channel:
Controlled errors can be introduced into the transmitted data stream for each channel to provide worst-case testing of 1553 devices. There errors include incorrect parity, erroneous 1553 Manchester encoding, zero crossing errors of ±150 ns, dropped data bits, interword data gaps, incorrect or invalid 1553 sync patterns, incorrect Remote Terminal response times, incorrect number of data bits per word, incorrect number of words per message, invalid signal levels, and common-mode signal injection. On received data, the 73A-455 can distinguish between incorrect transition time errors, bit count errors, parity errors, incorrect sync errors, terminal response time errors, interword data-gap errors, word count errors, and message format errors such as incorrect Remote Terminal address, missing Remote Terminal response, invalid status words, invalid mode code usage, and invalid broadcast mode usage.
The 73A-455 self test capability is programmable with a single command (each channel tested independently).
Each channel of the module is programmed by sending ASCII characters to the 73A system from the system controller. Data is also returned to the system controller as ASCII characters.
Seller Alltest
Used-Line Dealer since : 2003
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Tektronix 73A-455
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