Package type -- qsfp-sr4-40g this optical module package type is qsfp + (Quad small form factor pluggable plus), that is, four channel small pluggable optical module. This packaging type is born to meet the market demand for high-speed pluggable solutions with higher density. The whole system includes 38PIN connector, electromagnetic interference (EMI) shielding assembly, optical transceiver, heat dissipation component, copper cable assembly, MTP optical cable assembly, optical loop, etc.
Appearance size --- qsfp-sr4-40g this optical module is only 30% larger than the standard SFP module. Its original design intention is to replace single channel SFPs with high-density optical modules. Because the area of the frame panel of the equipment is limited, the number of optical fibers is limited. If standard SFP or 10Gbps XFP connectors are used, the number of channels that can be accommodated will be limited by physical space. Qsfp + can concentrate more transponders and receivers in a smaller space.
Interface -- qsfp-sr4-40g this optical module mainly realizes the connection of high bandwidth 40g optical fiber link through 12 core optical fiber cable with MPO / MTP fiber connector; it can also realize the connection of 4x10g duplex mode by connecting four fiber branch cables 10gbase-sr optical interface.
Transmission rate -- qsfp-sr4-40g this optical module has a transmission rate of 40Gbps. It has four independent transmitting and receiving optical signal channels, and each channel can support 10Gbps data transmission. 40g Ethernet is a key technology in data center, so 40g optical module is widely used in optical network.
Transmission distance -- qsfp-sr4-40g the maximum transmission distance of this optical module is 150 meters. It is often used for the transmission of multimode fiber. It can support the signal transmission of about 100 meters of OM3 jumpers and 150 meters of OM4 jumpers. It is an optical module suitable for short distance transmission.
Laser type - qsfp-sr4-40g this optical module adopts VCSEL laser, because it can arrange multiple lasers in parallel in the direction perpendicular to the substrate, so it is very suitable for application in the fields of parallel optical transmission and parallel optical interconnection, and has high cost performance, so it has been widely used in broadband Ethernet and high-speed data communication network.
Application -- qsfp-sr4-40g this optical module is mainly used in switches, routers, host adapter bus; enterprise storage; high density, high-speed I / O; multi-channel interconnection, etc. This scheme is especially suitable for high traffic processing systems. The most typical applications of these systems include data center, network connection and high performance computing.
