The MIL-STD-1553 specification supports the connection of multiple devices through a redundant, deterministic, serial data bus. These device are connected to the bus through tributaries called stubs. The data bus passes through the coupler by connecting to two connectors.
What is a 1553 cable?
MIL-STD-1553 Twinax Cable Assemblies These cable assemblies provide solutions in test laboratories because of their flexibility and defined lengths. These fixed length cables could be the springboard into more specific requirements from customer programs.
What does a bus coupler do?
Bus coupler is a device which is used to couple one bus to the other without any interruption in power supply and without creating hazardous arcs. Bus coupler is a breaker used to couple two busbars in order to perform maintenance on other circuit breakers associated with that busbar.
Where is MIL-STD-1553 used?
MIL-STD-1553 is a military standard that defines mechanical, electrical, and operating characteristics of a serial data communication bus for the U.S. Department of Defense. It is now commonly used for both military and civilian applications in avionics, aircraft, and spacecraft data handling.
What is MIL-STD-1553B bus and protocol?
MIL-STD-1553B is the military specification defining a digital time division command/response multiplexed data bus. The 1553 data bus is a dual-redundant, bi-directional, Manchester II encoded data bus with a high bit error reliability. All bus communications are controlled and initiated by a main bus controller.
What is the maximum useable bus throughput for MIL-STD-1553?
approximately 200 Mbps
Increased data throughput requirements for high definition video and camera services far exceed what MIL-STD-1553B theoretically maximums are — approximately 200 Mbps.
What is the difference between bus section and bus coupler?
The bus sectionalizer is used in switchgear having a Single Busbar Configuration to divide the bus into two Sections; while bus coupler is normally used in switchgear having Double Busbar Configuration to Connect the Two buses in case of load transfer, contingencies, etc.
What is the difference between bus coupler and bus riser?
A bus riser is one type of incomer, a way of getting power into a switchboard. Other incomers might be from generators, for example. A bus coupler is a cubicle containing some method of splitting the horizontal busbars in two, for flexibility of distribution or for fault isolation.
What does dual redundant bus mean?
Dual Redundant means two complete 1553 buses, with only one of the buses active at a time. The next message may be on the same bus, or on the other bus, as determined by the bus controller. This means that both buses must be connected to each of the terminals in the system.
What is a MIL-STD-1553B data bus coupler?
Cinch Trompeter’s MIL-STD-1553B data bus couplers provide the required interface to connect bus controllers, remote terminals, and bus monitors to the bus itself. While its data rate of 1 Mbps seems slow by current standards, it is more than sufficient to transfer the command, control, and status messages between the attached systems.
How many stubs can a PLI 1553 data bus box coupler have?
PLI 1553 box couplers are also available in standard versions with up to eight stubs, customized versions with up to 12 stubs, or low-profile versions with up to six stubs. PLI data bus box couplers meet the requirements of Mil-Std-1553 and USAF 8912005, 8912006, 8912007, and 8912008.
What types of 1553 couplers are available for immediate delivery?
Standard single and dual stub 1553 inline couplers are available for immediate delivery. In addition, Phoenix Logistics has designed and can provide numerous special MIL-STD-1553 in-line couplers including 3, 4, 5, and 6 stub databus couplers with available internal terminations (if required).
What is a data bus box coupler?
Our data bus box couplers allow a system designer to interconnect avionics boxes with minimum wire runs and allow for future expansion and the addition of new boxes with minimal impact to the existing avionics wiring system. Our MIL-STD-1553 box couplers are also an excellent choice for bench testing complete systems.
