Different fiber types result in different transmission modes. According to different fiber types and transmission modes, fiber optic patch cord can be divided into two categories: single-mode fiber optic patch cord and multi-mode fiber optic patch cord. The fiber optic patch cord types and differences are introduced below.
OM1: Refers to 50um or 62.5um core diameter multi-mode fiber with 850/1300nm full injection bandwidth above 200/500MHz.km. The outer sheath of the OM1 multi-mode fiber optic patch cord is generally orange.
OM2: Refers to 50um or 62.5um core diameter multi-mode fiber with 850/1300nm full injection bandwidth above 500/500MHz.km. The outer sheath of the OM2 multi-mode fiber optic patch cord is also generally orange.
OM3: It is a 50um core diameter multi-mode fiber optimized by 850nm laser, and the outer sheath of OM3 multi-mode fiber optic patch cord is generally lake blue.
OM4: It is a 50um core diameter multi-mode fiber optimized by 850nm laser. The outer sheath of the patch cord is generally purple.
OM5: It is a brand-new fiber type, and the wavelength is generally 850/1300nm, which can support at least 4 wavelengths at a time, and its outer sheath is generally aqua-green.
OS2: The wavelength and maximum attenuation value are 1550nm and 0.4dB/km respectively, and its outer sheath is mostly yellow.
As listed above, patch cord color varies by type.
OM1: The core diameter and numerical aperture are relatively large, and it has strong light collection ability and bending resistance;
OM2: The core diameter and numerical aperture are relatively small, which effectively reduces the modal dispersion of the multi-mode fiber, significantly increases the bandwidth and reduces the production cost by 1/3;
OM3: The flame-retardant outer sheath is used, which can prevent the spread of flame, the emission of smoke, acid gas and poisonous gas, etc, also,it can meet the needs of 10gb/s transmission rate.In 10Gb/s Ethernet with 850nm VCSEL, the transmission distance of optical fiber can reach 300m.
OM4: Developed for VSCEL laser transmission, and the effective bandwidth is more than twice that of OM3. In 10Gb/s Ethernet with 850nm VCSEL, the transmission distance of optical fiber can reach 550m. Besides, using MPO connector can run 100GB to 150 meters.
OM5: OM5 fiber optic patch cord takes example by the wavelength division multiplexing (WDM) technology of single-mode fiber, which extends the available wavelength range during network transmission, and only requires 8-core multi-mode fiber in total, among them, 4-core optical fiber is used to send signals, and the other 4-core optical fiber is used to receive signals, and each optical fiber transmits 4 wavelengths, and the transmission rate of each wavelength is 25Gbps, therefore, each core fiber of the OM5 fiber optic patch cord can transmit 100Gbps data. It greatly reduces the cabling cost of the network. At the same time, it can be backward compatible with OM3 and OM4 cabling, which greatly facilitates the expansion of the network.
OS2: Compared with an ordinary multi-mode fiber optic patch cord types, OS2 single-mode duplex fiber optic patch cord has better performance and is more cost-effective in long-distance data transmission. It is generally matched with FHD optical fiber distribution box, and the transmission distance can reach more than 1km, which can meet a variety of different cabling requirements. There are two types of OS2 fiber optic patch cord: single-mode simplex fiber optic patch cord and single-mode duplex fiber optic patch cord, which are mainly different in fiber grades, among which, single-mode duplex fiber optic patch cord has a wider application range.
If you have any interests of fiber patch cord, welecome to contact Copperled Technology Co.,Ltd. (Tel: 0755-27896171)