• September 29. 2017

We are often confused on the compatibility of SFP and SFP+, confused that we don't know if we can use the SFP optical module in the SFP+ slot. It's a headache for many engineers, today we will focus on this problem. The SFP optical module can plug into the SFP+ port in most cases. According to experience, CWDM SFP optical transceiver can run in the SFP+ slot, but the SFP+ module cannot run in the ...

• October 12. 2017

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’...

• December 22. 2017

Since the physical fiber optic cabling is expensive for each individual service, it is highly advisable to use a WDM technology for expanding the capacity of the fiber to carry multiple client interfaces. DWM have two types, includes CWDM & DWDM. Today we talk about the knowledge of 10G CWDM 80KM. About 10G CWDM 80KM ETU-Link's ESPCxx92-3LCD80: 10G SFP+ CWDM 80KM Transceiver is a "Limitting mo...

• January 17. 2018

Good morning! Last time we talked about the Optical transceiver structural analysis. Today, we will share some knowledge of SFF-8472 Standard. As we all know, Optical transceivers play an important role in the data center, many international organizations have formulated various standards, like GBIC, SFF-0053, INF-8074 and SFF-8472. 1. What is SFF-8472 standard? The SFF-8472 is a MSA(Multi-source ...

• May 28. 2018

According to the packaging optical transceiver can be divided into packages such as GBIC, SFP, XENPAK, SNAP12, X2, XFP, SFP +, QSFP/QSFP+, CFP, CXP etc, according to the transmission rate can be divided into such as 1.25G, 10G and 25G, 40G, 100G,etc., however, what is CWDM optical transceiver？What are the advantages? In what fields?Friends who want to know the answer, ETU-Link invites you to read ...

• 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...

• 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’...

• April 30. 2019

Recently, some of our customers want to know more about the CWDM modules' applications. Here we share some of CWDM knowledge to you, hope these can be helpful for your business! 1. What is CWDM modules? With the CWDM optical transceiver, different wavelength can be transmitted by only one core. And it's receiver can receive signal from 1270nm-1610nm. 2. Where is the CWDM modules can be used? As th...