Knowledge of qsfp module

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 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 be 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 two-way high-capacity work; Jkr (2) fully compliant with 10 Gbps QDR old, and backward compatible with 5 Gbps DDR fast and 2. 5 Gbps SDR twist; (3) When using 64B/66B encoding, 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.

Working principle of QSFP+ module

The 40Gbps QSFP+ parallel optical transceiver module is used in the high-speed interconnection fiber channel field, and its function is to realize laser driving, electro-optical mutual conversion, receiving amplification and alarm output reporting. The interface of the module includes two parts PW, the electrical interface and the optical interface. The electrical interface uses a 38-PIN connection method, such as the SFF-84% protocol, for 4-way input and 4-way output data signals, status and control signals. Among them, the data signals TX(n) (p/n) and RX(n) (p/n) are CML levels, the status and control signals are LVTTL levels, and the two-line serial signals SCL and SDA are LVC MOS levels . The optical interface uses MPO type connectors for input and output of optical signals. Support OM3, 15

The 0M4 standard multimode fiber can transmit 100 meters with 0M3 MMF and 150 meters with 0M4 MMF. The module can convert the input signal into an optical signal output module, and at the same time convert the received optical signal into an electrical signal and output it to the host computer. The module is divided into three parts; transmitting, receiving and monitoring.

 

Best QSFP module provider

40g qsfp modules are one of the most popular types of transceivers due to their ability to provide high speed data transfer rates. QSFPTEK is a leading provider of 40g qsfp modules, offering a wide selection of transceivers that are compatible with a variety of 40g Ethernet ports. In addition to providing high quality transceivers, QSFPTEK also offers a number of other benefits, including a lifetime warranty and technical support. As a result, QSFPTEK is the best choice for those in need of a 40g qsfp module provider.

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