429 INTERFACE SIMULATION CARD
The PC720 PC interface card is used for testing, simulating and monitoring of
serial bus systems in accordance with ARINC 429. The PC720 ARINC 429 interface
is a half sized PC card which contains one transmitter and one receiver
channel. The card contains an on-board microprocessor and a dual port memory
is employed for interfacing to the PC. The transmit channel functions as a Bus
Traffic Simulator and the receive channel provides for advanced Real Time Data
Monitoring and Analyzer modes of operation.
Data can be captured, time tagged
and stored to the PC's hard disk for later analysis.
In simulation mode, the PC720 executes autonomously instructions held in
the dual port memory and will perform cyclic and one-shot modes of
transmission. Label repetition rates and minor frame rates are completely
controlled at the board level, which significantly reduces the host PC
The inter-message gaps are programmable in 4-bit periods up to 252
The receive functions provide for comprehensive Bus Monitoring and Data
Acquisition. In addition to this all received data is time tagged and Data
Acquisition can be triggered upon the occurrence of a specified condition.
Extensive post analysis functions provide for Label filtering, time filtering
and changing data only displays.
WINDOWS or DOS software can be supplied that will enable the user to define
the ARINC 429 data for transmission and reception. Data can be entered and
displayed in binary, hexadecimal or user defined engineering units format. The
engineering formats supported are; Signed binary, Unsigned binary, 2's
Compliment, Binary Coded Decimal (BCD) and Discrete flag data. The Menu
software supplied will allow the user to achieve the application objective.
However, for those special applications, a 'C' or PASCAL driver library is
- On card Dual Port RAM for Tx & Rx status and data
- Single or Repetitive data
- Dynamic update of transmitted data in real time
- Interrupt and polling capabilities
- Automatic Speed detection on receiver channel
- Repeat rate 1-65535mS per word
- Programmable Tx Inter-Word-Gap
- Opto-coupled receiver
- DOS, WINDOWS and Library software available.
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