Standard IEEE 1394 Transmission Speeds

IEEE 1394 Transmission Speed

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Question

Which of the following is a standard IEEE 1394 transmission speed?

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Explanations

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A. B. C. D.

B.

IEEE 1394, also known as FireWire or i.Link, is a high-speed serial bus interface used for connecting various devices, including computers, digital cameras, and audio equipment. It was developed by Apple in the late 1980s and later standardized by the IEEE.

The IEEE 1394 specification defines several transmission speeds, depending on the version of the standard and the cable used. The most common speeds are:

  • IEEE 1394a: This is the original version of the standard and supports data transfer rates of up to 400Mbps (megabits per second) over distances of up to 4.5 meters. It uses a 6-pin or 4-pin connector and is compatible with most FireWire devices.

  • IEEE 1394b: This is a newer version of the standard and supports data transfer rates of up to 800Mbps or 1600Mbps, depending on the cable used. It uses a 9-pin connector and can transmit data over distances of up to 100 meters.

  • IEEE 1394c: This version of the standard, also known as FireWire S800T, supports data transfer rates of up to 3.2Gbps (gigabits per second) over distances of up to 100 meters. It uses optical fiber cables and is not widely adopted.

  • IEEE 1394d: This version of the standard, also known as FireWire S1600T, supports data transfer rates of up to 6.4Gbps over distances of up to 100 meters. It also uses optical fiber cables and is not widely adopted.

Based on the given options, the correct answer is B. 400Mbps, which is the maximum transmission speed supported by IEEE 1394a. Option A, 100Mbps, is a common speed for Ethernet networks but is not related to IEEE 1394. Option C, 480Mbps, is the maximum speed supported by USB 2.0 and is often confused with FireWire. Option D, 1000Mbps, is a common speed for Gigabit Ethernet but is not related to IEEE 1394.