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SG0-001 · Question #448

Which of the following distances is supported for 50 micron multimode cable for 4 Gb/s Fibre Channel?

The correct answer is A. 150 meters (492 feet). For 4 Gb/s Fibre Channel, 50 micron multimode cable supports a maximum distance of 150 meters.

Storage Connectivity

Question

Which of the following distances is supported for 50 micron multimode cable for 4 Gb/s Fibre Channel?

Options

  • A150 meters (492 feet)
  • B350 meters (1148 feet)
  • C600 meters (1968.5 feet)
  • D2000 meters (6561 feet)

How the community answered

(49 responses)
  • A
    90% (44)
  • B
    2% (1)
  • C
    6% (3)
  • D
    2% (1)

Why each option

For 4 Gb/s Fibre Channel, 50 micron multimode cable supports a maximum distance of 150 meters.

A150 meters (492 feet)Correct

According to Fibre Channel standards, 50 micron (OM2) multimode fiber cable supports a maximum distance of 150 meters (492 feet) for 4 Gb/s Fibre Channel connections. This specification is crucial for proper SAN design and performance.

B350 meters (1148 feet)

350 meters is typically supported by OM3 (laser-optimized 50 micron) multimode cable for 4 Gb/s Fibre Channel, not standard 50 micron multimode.

C600 meters (1968.5 feet)

600 meters is supported by OM4 (laser-optimized 50 micron) multimode cable for 4 Gb/s Fibre Channel, or OM3 for 1 Gb/s, exceeding the capability of standard 50 micron multimode.

D2000 meters (6561 feet)

2000 meters or longer distances are generally supported by single-mode fiber optic cables for Fibre Channel, not multimode fiber.

Concept tested: Fibre Channel distance specifications

Source: https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/fibre-channel-modules/product_data_sheet0900aecd8044737d.html

Topics

#Fibre Channel#multimode fiber#cabling distances#SAN connectivity

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