40G QSFP+

QSFP plus is a 40G optical module package defined by the IEEE organization, which greatly meets the market demand for high density and high speed. The 40G QSFP optical module is a compact hot-swappable light module with four transmission channels, each with a data rate of 10Gbps, and is compliant with sCSI, 40G Ethernet, 20G/40G InfiniBand and other standards. The interface types of this optical module are LC interface and MTP/MPO interface, which are used in single-mode applications and multimode applications respectively. With the advent of cloud computing and big data, networks are being forced to grow at high rates and densities, while the utilization of virtualized servers increases. To provide enough I/O (input/output) bandwidth, many new access switches have evolved to connect to 2 or 4-port 40G Ethernet. The rapid development of interconnected data transmission is inseparable from the 40G QSFP-optical module, because it provides enough bandwidth to ensure that data conversion is unobstructed to meet the needs of the data center, enterprise campus network. The 40G QSFP optical module can transmit data at 10Gbps per channel at the same port volume as the XFP module, and supports data transmission for four channels at the same time, so the 40G QSFP optical module can be 4 times denser than the XFP optical module and 3 times that of the SFP-optical module.

40G QSFP+ Types

The 40G LR4 QSFP-optical module meets the 802.3ba standard with a maximum transmission distance of 10km, and has the advantages of high density, low cost, high speed, high capacity, low power consumption and so on. The operating wavelength of the 40G SR4 QSFP-optical module is 850nm, which transmits data through four separate full duplex channels at the same rate as the 40GLR4 QSFP-optical module. The transmission distance of the 40GLR4PSQSFP and optical module is 10km, which is a highly integrated 4-channel optical module, which has the advantage of high port density and low cost. The optical port of this optical module uses parallel single-mode technology, PSM. The 40G ER4 QSFP-optical module converts four 10G data input channels into four CWDM optical signal channels at a rate of 11.2Gbps, and multiplexes them into a single channel for 40G data transmission. The 40GCSR4 QSFP-optical module has extended the transmission distance of OM3 and OM4 multimode fibers, and its 10G transmission channels are iEEE10GBASE-SR compliant. A 40G high-speed cable (DAC) is a cost-effective high-speed interconnect solution for connecting cables with fiber-optic transceivers at both ends for 40Gbps data transmission. 40G high-speed cable is more common can be divided into 40G QSFP , to QSFP , 40GQSFP , 40GQSFP , 40GQSFP , 4XFP , DAC three types , in practical applications are more than the first two types.

40G QSFP+ Applications

The 40G SR4 QSFP-optical module is often used with the MPO/MTP connector, and can also be used with mTP/MPO to LC fiber jumpers to achieve the connection between the 40G network equipment and the 10G network device. In addition, the 40G SR4 QSFP plus optical module is a multimode fiber type, which is used with OM3/OM4 multimode fiber when the transmission distance is 100m and 150m respectively. Both optical modules use duplex LC interface, generally used in single-mode applications, they all have four independent optical signal reception and transmission channels, the need to use WDM technology to reuse and cosmographic optical signals, so as to achieve the optical signal in long-distance single-mode fiber transmission. The difference is that the transmission distance of the 40GLR4 QSFP plus optical module can reach 10km, while the transmission distance of the 40GER4 QSFP plus optical module is generally 40km. The 40G LR4 PSM optical module uses a four-way parallel design of the MPO/MTP interface for data transmission. It works the same way as the 40G SR4 QSFP plus light module. The 40GCSR4 QSFP-optical module is generally used with multimode fiber, and it supports the 300 m signal transmission of the OM3 jumper and the 400 m signal transmission of the OM4 jumper. In addition, the 40GCSR4 QSFP plus optical module can be connected to 4x10G duplex mode by connecting the optical interface of four branch cables.

40G QSFP+ from Professional China Manufacturer

40G QSFP and DAC high-speed cable and QSFP and optical module can be used as a solution for 40G network transmission applications, 40G QSFP and DAC high-speed cable applications are more in the data center short-distance transmission, low cost, easy wiring and other advantages, and 40G optical module can achieve long and short distance transmission.

Multimode QSFP plus rack-to-rack, data center, 40G Ethernet, InfiniBand QDR, DDR, and SDR for multimode applications. Single-mode QSFP plus is used for high-speed interconnect between data centers and the Internet, routers and transmission equipment, rack-to-rack, panel-to-panel, and 40G-LR4 Ethernet links InfiniBand SDR, DDR and QDR applications. The 40G SR4 QSFP plus optical module is suitable for short-range transmissions and is commonly used in data centers with OM3/OM4 fiber connections, while the 40G LR4 QSFP plus optical module and 40G LR4 PSM optical module are suitable for long-distance transmission. For comparison of the two optical modules, the 40G LR4 QSFP plus optical module is more cost-effective.

Because in long-distance transmission, the 40G LR4 QSFP plus optical module is only suitable for two fibers, while the 40G LR4 PSM optical module requires eight single-mode fibers. Most high-density data center fiber cabling systems are available in plug-and-play, high-density, scalable, pre-terminated fiber cabling system solutions. Huihongfiber provides you with transmission equipment such as 40G QSFP and DAC high-speed cables, 40G AOC active fiber optic cables, QSFP-optical modules, and MPO fiber jumpers required for 40G network cabling solutions.