Transfer characteristics ARINC 429 specifies a two-speed transfer of data. low speed is set at 12.5 kHz, the effective size of 12 qualified to 14.5 kHz. Rapid response to 100 kHz supervisor. These two rates can not use the same transmission line.
Information is a two-way back to zero size. Sand Dunes dune Sagit modulation Tri-State high and zero states. terminals of the source of transmission of the measuring legal voltage. input of the receiver depends on the length of the line, gathering and jump in the number of connected receivers.
The tension laws showed in three countries: in both senses of high (or 1) is a referral from zero to 10 V, Londa first half a bit, then back to zero or NULL. Low (or 0) takes a null signal 10V low round for the first half and ran away. Back to zero modulation format always ends exactly at 0 volts without a dune portion of the clock signal for the warm-box. Example of a bipolar, Tri-State RZ signal is displayed in Word format ARINC 429 protocol shows the power transfer bus data points up to 20 recipients. The transmitter is always to provide information about the words that the government or the so-called invalid.
Most legal elements have an ARINC-429 data word a binary (BNR), binary coded decimal (BCD), alphanumeric data or ISO Alphabet No. 5 encoded. File transfer, more than one word are also welcome to send. ARINC 429 data word has 32 bits, composed of five main areas: women and men – the bit of sign / status matrix (SSM) – 2 bits – 19-bit source / destination identifier (SDI) – 2 bits detiquettes – 8, only two bits of equality and a map needs a permanent 23-bit data at a high resolution format. Teams of non-standard Word Many various manufacturers Davion. Also included in the amendment that all data sent to the ARINC word 32 bits. All unused bits filled with zeros.