Interface Standard for Digital Time Division Command/Response Multiplex
Data Bus
[MIL1553 Description] [OnLine
Standards]
[MIL-1553 Interface ICs] [MIL-1553 Connectors]
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MIL-STD-1553 is a DOD Military (MIL) Standard (STD), which defines
both the Mechanical, Electrical, and Functional characteristics. MIL
1553 uses a Balanced (Differential) interface. The interface is dual
redundant with between 2 and 32 interface devices on the bus. The multiplex data bus system shall function asynchronously in a command /response mode, and transmission shall occur in a half-duplex manner. The information flow on the data bus shall be comprised of messages which are, in turn, formed by three types of words (command, data, and status). The most significant bit shall be transmitted first with the least significant bits following in descending order of value in the data word. The data code shall be Manchester II bi-phase level. A logic one shall be transmitted as a bipolar coded signal 1/0 (i.e., a positive pulse followed by a negative pulse). A logic zero shall be a bipolar coded signal 0/1 (i.e., a negative pulse followed by a positive pulse). A transition through zero occurs at the midpoint of each bit time.. The transmission bit rate on the bus shall be 1.0 megabit per second with a combined accuracy and long-term stability of ± 0.1 percent (i.e., ±1000 hertz (Hz)). The word size shall be 16 bits plus the sync waveform and the parity bit for a total of 20 bits times.. The nominal characteristic impedance of the cable (Z0) shall be within the range of 70.0 ohms to 85.0 ohms at a sinusoidal frequency of 1.0 megahertz (MHz). The Mil-1553 interface may be Transformer coupled [Schematic Diagram]. |
Aeroflex { MIL-STD-1553 Controller/Transceiver ICs, Single/Dual Channel}
C-MAC MicroTechnology {MIL-STD-1553-Transceiver ICs; Microcircuit, Digital, Single Channel/Dual Channel Driver/Receiver, Hybrid}
Data Device Corp. {MIL-STD-1553-Transceiver ICs; MIL-STD-1553A and 1553B}
Holt Integrated Circuits Inc. {Monolithic Dual 5V Transceivers, Dual 3.3V Smart Transceivers, MIL-STD-1553 Databus Interface Transformers}
National Hybrid Inc. {Transceiver,Dual}
IC Manufacturers {All other types} {This Site}
MIL-STD-1553
{stinet} ~ [Military-Standard-1553b]
MIL-STD-1773 - Fiber Optics mechanization of an Aircraft Internal
Time Division Command/response Multiplex Data Bus
MIL-HDBK-1553A - Multiplex Applications Handbook
MIL-STD-1760C - Interface Standard for Aircraft/Store Electrical
Interconnection System
MIL-STD-1397C - Input/Output Interfaces, Standards Digital data,
Navy Systems
MIL-STD-1397 {NTDS} ~ [Description of the Bus, this web
site]
NATO calls MIL-STD-1553B: STANAG 3838AVS;, the UK calls it DEF
STAN 00-18. Now controlled by the SAE as AS15531, and
re-released by NATO as STANAG 7155.
STANAG 3910; A derivation of MIL-1553 (like MIL-1773 ?) used in
NATO / UK. Operates at 100Mb/s over fiber.
ARINC 629; Another derivation of MIL-1553 used by commercial
aircraft. Yet another was ARINC 453.
MMSI: Miniature Mission Stores Interface. 2-wire, 10Mbps 1553
protocol transmitted using RS-485 transceiver(s). Also called Enhanced
Bit Rate 1553 (EBR-1553). MMSI / EBR
SAE AS5652; 10Mbps, Multi-drop
{MIL-STD-1553 Aircraft Bus Index}
MlL-STD-1553B does not specify the type of connector used to interconnect
cables that make up a network. Notice 2, paragraph 30.10.3, however,
specifies that, for applications that use concentric connectors or
inserts for each bus [Pin Out info]: the center pin of the connector or
insert shall be used for the high (positive) Manchester hi-phase signal.
The inner ring shall be used for the low (negative) Manchester hi-phase
signal. There are currently two types of connectors in general use.
1: a multi-pin connector that comes in various styles including circular,
rectangular, and rack and panel.
2: is the discrete concentric triaxial design.
Amp Electronics "Tyco Electronics"
Connector Manufacturers {All other types} {This Site}
{Back to MIL-STD-1553 Avionics Interface Bus Index}
Engineering Design Key words: MIL-STD-1553, MlL/STD/1553B, STANAG 3838AVS, STANAG 7155, DEF STAN 00-18, AS15531, Military, DOD, Department of Defense, Standard, Avionics bus, Interface Standard for Digital Time Division Command/Response Multiplex Data Bus, Aircraft, Standard, Specification, Spec, Interface, IC, Physical Interface, Serial Bus Description, Balanced Differential dual redundant Interface.
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