• December 30. 2019

As we all know, the SFP optical transceiver is a hot plug compact component that provides optical fiber connections for optical networks.They support fiber optic switches, which are commonly known as FC switches, SONET/SDH networks, gigabit Ethernet switches, high-speed computer links, and CWDM and DWDM interfaces.When connecting with the switch, the optical signal intensity of the SFP optical tra...

• September 21. 2018

25G Ethernet has already hit the network world at an unexpected speed and may eventually become the fastest completed IEEE Ethernet standard. What is 25G Ethernet? 25G Ethernet set based on IEEE 802.3by agreement, which can realize 3 to 5 meters of copper double axis and 100 meters of multimode optical fiber transmission, designed to meet the needs of more customers, namely the speed of 10G Ethern...

• September 17. 2018

If you are the first time to buy optical transceivers, you might be confused with "DDM", "DOM" or "RGD". What are they? Today, ETU-Link will describe in detail the functions of these three types of optical modules. What is DDM? DDM means Digital Diagnostic Monitoring. It is the technique used in the optical module so that users can monitor the real-time parameters of the module. Including modules’...

• August 31. 2018

Direct attach cable is a communication equipment connection cable. It is commonly used to realize short distance high-speed interconnected communication. It is mainly used to realize the interconnection between servers, switches, memory and other devices. It is a low-cost high speed data communication solution. The common wire specifications are 24AWG, 28AWG and 30AWG, which can meet a variety of ...

• August 29. 2018

BIDI optical module only has one optical port, just need one fiber can simultaneously transmit and receive optical signals, is a solution to save fiber resources. BIDI optical module uses WDM technology to realize the bidirectional transmission of optical signals on one optical fiber. Optical module usually has two ports, the TX is the transmitting port, and the RX is the receiving port. BIDI modu...

• August 24. 2018

As we all know, the 40G SR4 QSFP+ optical module is the ideal solution for short-range interconnection in 40G networks and has many advantages, but the 40G QSFP+ AOC also has similar function of optical module and is not inferior to the 40G SR4 QSFP+ module or even can replace it to transmit signals. Since both can be 40G short-distance interconnection, then what are the differences between them? ...

• September 21. 2018

100G has a variety of packaging forms, including CFP/CFP2/CFP4, CXP and QSFP28. Among these different 100G packaging forms, QSFP28 optical module has the advantages of high port density, low power consumption and low cost, so it has become the main packaging form of 100G network. Therefore, we will focus on four types of 100G QSFP28 optical modules today. 1.100GBASE-SR4 QSFP28 optical transce...

• August 13. 2018

Nowadays, large data centers and networks tend to provide multiple Ethernet interface speeds, including 10Gbps, 40Gbps, and 100Gbps. Based on this, Arista 7500R series switches are introduced, which greatly increased the flexibility and scalability of data center cabling, and it has been widely favored by people. Arista 7500R series modular switches can provide the highest performance in the indus...