# What is OM5 Fiber ?

♦♦ What is OM5 Fiber ?

&#x20;♦OM5 also called Wideband Multimode Fiber (WBMMF).

♦OM5 is engineered to handle high-speed data center applications by supporting shortwave wavelength division multiplexing (SWDM).

♦This new fiber cable standard has already been referred to by the IEEE 802.3 working group for next-generation Ethernet standard development.

Fiber: TIA-492AAAE.

Cabling: ANSI/TIA-568.3-D, ISO/IEC 11801 ed. 3.

♦TIA has specified lime green as the official cable jacket color for OM5.

&#x20;♦♦What the meaning of SWDM ?

♦Shortwave wavelength division multiplexing (SWDM) is a technology that uses four wavelengths across the 850 to 950 nm range.

♦Unlike its predecessors (OM3 and OM4) work at 850 nm wavelength conventionally, OM5 fiber operates over a broader wavelength range of 850 to 950 nm, it allows multiple wavelengths to be transmitted simultaneously through a single fiber.

♦SWDM transceivers were designed to use 2-fiber connectivity into the transceiver with OM5 multimode fiber.

♦OM5 fiber technology tackles the challenge of rising fiber counts in data centers with its SWDM technology.

♦In the traditional 40G network layout, one MTP fiber and four OM4 duplex fibers (a total of 8) are required, but with OM5 and SWDM technology, only two fibers (4x10G) are required. In a 100G link, the same two fibers (4x25G) can support. By reducing fiber count and enabling multiple wavelengths, OM5 provides efficient solutions for data centers.

&#x20;♦For data centers Applications, OM3 and OM4 fibers have limited transmission distances, for example at 100G speeds, where OM3 can only transmit 75 meters and OM4 up to 100 meters.

SWDM allows OM5 to transmit multiple signals in parallel within the 850nm to 950nm range, extending 100G transmission up to 150 meters or more. This enhancement overcomes the distance limitations of OM3 and OM4, providing a more flexible and efficient solution for high-speed, long-distance data transmission in modern data centers.

&#x20;♦OM5 fiber is designed to be used at wavelengths beyond 850 nm, specifically, 880 nm, 910 nm, and 940 nm. This means that it can support four simultaneous transmissions with Wave Division Multiplexing. There is an attenuation value for the 953 nm wavelength, 2.3 dB per KM.

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OM5 Fiber

OM5, hay Wideband Multimode Fiber (WBMMF), được thiết kế cho ứng dụng trung tâm dữ liệu tốc độ cao với công nghệ Shortwave Wavelength Division Multiplexing (SWDM).

Đặc điểm kỹ thuật

1. Tiêu chuẩn cáp: TIA-492AAAE.
2. Tiêu chuẩn cáp nối: ANSI/TIA-568.3-D, ISO/IEC 11801 ed. 3.
3. Màu áo cáp chính thức: Xanh lime (theo TIA).

Công nghệ SWDM

1. Shortwave Wavelength Division Multiplexing (SWDM) sử dụng bốn bước sóng từ 850 đến 950 nm.
2. Khác với OM3 và OM4 (850 nm), OM5 hoạt động trên phổ bước sóng rộng hơn.
3. SWDM cho phép truyền nhiều bước sóng đồng thời qua một sợi cáp.
4. Transceiver SWDM sử dụng kết nối 2 sợi quang với sợi OM5.

Ưu điểm

1. Giảm số lượng sợi quang trong trung tâm dữ liệu.
2. Tăng hiệu suất truyền tải dữ liệu.
3. Hỗ trợ truyền tải 100G lên đến 150 mét.
4. Tăng tính linh hoạt cho truyền tải dữ liệu tốc độ cao.

So sánh với OM3 và OM4

1. OM3: truyền 100G lên đến 75 mét.
2. OM4: truyền 100G lên đến 100 mét.
3. OM5: truyền 100G lên đến 150 mét hoặc hơn.

Ứng dụng

1. Trung tâm dữ liệu.
2. Mạng Ethernet thế hệ tiếp theo.
3. Ứng dụng đòi hỏi tốc độ cao và khoảng cách truyền tải dài.

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