40G optic transceiver Overview

optic transceiver
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The search giant, Google, has been building its own data in the past 10 years, and it is investing heavily at present. From April to June this year, it invested 1.6 billion US dollars in data construction. Recently , the old M company also announced that it was officially put into use in Peru ‘s H data , which also cost 8 million US dollars to build . According to the forecast of Gartner, a well-known market research company, the total global investment in the construction of data in 2013 will exceed 143 billion US dollars, and the investment in next year will steadily increase to 143.9 billion. USD W. The huge amount of money invested in the construction of data privacy directly shows that major technology companies attach great importance to the upgrading of data content. The data must be switched by 48 10GE interfaces per line card. Under such a high-density, large-capacity access bandwidth, the bandwidth of the uplink interface has a higher demand. In this context, in order to meet the higher bandwidth requirements, each QSFP+ module developed using QSFP+ modules connects the top of the cabinet, the blade and the modular switch with a port rate of 40G, which can bring up to 128 10G channel products will greatly exceed the current 48 SFP+ channel W. Within a transmission distance of 100 meters, only 40G QSFP+ optical modules can support short-distance transmission on multimode fibers. While many larger CFP devices from equipment vendors only allow four CFP ports per line card, QSFP+ has the advantage in port density and overall speed. Therefore, 40G QS FP+ optical module provides a solution for the problem of slave Ethernet bandwidth requirements, and major suppliers have also invested in the research and development of QSFP+ optical modules one after another.

With the increasing demand for bandwidth, the interconnection based on copper coaxial cable has gradually shown its shortcomings: large connectors and cables, weight, EMI electromagnetic interference problems, short transmission distances, etc., and fiber optic cables have weight control, high bandwidth, strong anti-electromagnetic interference ability, no crosstalk and low loss, so parallel optical fiber is an inevitable choice to replace copper coaxial cable. The QS SFP+ optical transceiver module and active/passive optical cable can provide four pairs of channels, each channel has a data transmission capacity of 10 Gbps, and supports hot-swappable functions. Compared with other 10 Gbps serial solutions, the QSFP+ solution can improve connection port density up to 2 times W, and save the overall cost of the system, reducing power consumption. For high-speed 10Gbps data transmission, copper coaxial cables usually only reach a transmission capacity of 3 to 15 meters, while the QSFP+ scheme using parallel optical fiber transmission can bring a transmission distance of 100 meters or even longer. The functional characteristics W of QS SFP+ have the following points: (1) The QSFP+ optical transceiver integrated optical module contains 4 independent transmission channels and 4 independent connection channels, and the transmission rate of each channel is 10 Gbps, which can reach a total of 40 Gbps. combine? Bandwidth, to achieve bidirectional high-capacity work; Jkr (2) fully compliant with 10 Gbps QDR-IB, and backward compatible with 5 Gbps DDR-IB and 2.2. 5 Gbps SDR-IB; (3) When the 64B/66B encoding method is used, the working speed can reach 10 Gbps, and the shell working temperature range is 0? 70’C, in line with the SFF-8436 protocol specification; (4) OM3 multimode fiber is used for connection, and the transmission distance is 100mW. Using OM4 multimode fiber transmission can reach 150m.

Common module models of QSFP+ include: QSFP-40G-SR4, QSFP-40G-LR4, QSFP-40G-ER4, etc. These models of QSFPTEK are available, please visit qsfptek.com to purchase.