What is parallel interface Centronics and IEEE-488?
What is parallel interface Centronics and IEEE-488?
IEEE 488 specifies a 24-pin Amphenol-designed micro ribbon connector. Micro ribbon connectors have a D-shaped metal shell, but are larger than D-subminiature connectors. They are sometimes called “Centronics connectors” after the 36-pin micro ribbon connector Centronics used for their printers.
How many devices can be connected in a single IEEE-488 bus?
15 devices
Interconnection Cabling Any individual IEEE-488 bus is limited to 15 devices including the controller.
How do devices connected with IEEE-488 bus communicate with each other?
The IEEE-488 bus uses three handshake lines in a “We’re ready – Here’s the data – We’ve got it” sequence to transfer information across the data bus. The handshake protocol assures reliable data transfer at the rate determined by the slowest Listener. The handshake lines, like all other IEEE-488 lines, are active low.
Which type of system is used in IEEE-488 system?
Basic GPIB concept. The GPIB or IEEE 488 bus is a very flexible system, allowing data to flow between any of the instruments on the bus, at a speed suitable for the slowest active instrument. Up to fifteen instruments may be connected together with a maximum bus length not exceeding 20 m.
What is a Centronics connector?
Centronics connectors are standard parallel interface devices for connecting printers and other peripherals such as portable disc drives, tape backup drives, and CD-ROM players to computers. Centronics connectors are named after the printer that first used them and include two rows of flat contacts.
What is a Centronics interface?
The Centronics parallel interface is an older and still widely-used standard I/O interface for connecting printer s and certain other devices to computers. The interface typically includes a somewhat cumbersome cable and a 36- pin male and female connector at the printer or other device.
What is Amphenol connector?
The term Amphenol connector refers to various electronics connectors that are introduced, or made primarily by Amphenol Corp. Depending on the area of electronics concerned, it may refer specifically to: MIL-DTL-5015 / MIL-C-5015, a circular connector. MIL-DTL-26482 / MIL-C-26482, a circular bayonet connector.
How many pins are there in Centronics?
36-pin
Parallel port
| Production history | |
|---|---|
| Pins | 8 data, 4 output control, 5 input control, 8 ground |
| Connector | DB-25, DB25F, “Centronics” 36-pin Amphenol, DC-37, others |
| Electrical | |
| Signal | 0 to +5.0 volt DC |
What is Centronics parallel?
What is parallel and serial interface?
The serial interface acts as a communication interface between two digital systems that sends data as a series of voltage pulses over a wire. In contrast, a parallel interface transmits multiple bits simultaneously using different wires.
