• December 11. 2021

The SFP-GE-SX-MM850 optical module is a gigabit multimode optical module with a transmission rate of 1.25G. Its package type is hot-swappable SFP with a center wavelength of 850nm. It is used with multimode OM2(LC/PC-LC/PC) patch cord when the transmission distance up to 550m, can also be used with multi-mode OM1(LC/PC-LC/PC) patch cord up to the  transmission distance of 275m....

• December 08. 2021

In recent years, cloud computing and big data have become an upsurge in our country. In order to provide sufficient bandwidth, many access switches have developed to core switches that can connect to 40G Ethernet. The rapid development of interconnected data transmission is inseparable from the 40G optical module, because it can provide enough bandwidth to ensure that data conversion is unimp...

• December 02. 2021

In the 1990s and early 2000s, network cards were generally used in computers, and they were slowly used in servers and workstations until later. During this period, due to the maturity of wireless technology and the popularization of wireless networks, wireless network cards were gradually widely used on computers. However, due to the reliability of the connection, the wired network card...

• November 26. 2021

Optical module identification and status monitoring are essential daily tasks for network engineers maintaining Cisco switching systems. This guide provides complete, step-by-step CLI commands to view module type, DOM/DDM diagnostic data, vendor details, and compatibility information, fully compliant with Cisco IOS and IOS-XE command standards. Prerequisites for Accessing the Cisco Switch We will ...

• November 23. 2021

The QSFP-40/100-SRBD is a dual-rate bidirectional (BiDi) optical module. It features 40G and 100G transmission rates and dual-fiber LC interface type. It can easily help customers upgrade from 10G to 40G/100G networks using existing 10G network duplex multimode fiber architecture. In the following, ETU-LINK will introduce the relevant parameters of the QSFP-40/100-SRBD optical module and the ...

• November 19. 2021

In today's Internet era, both enterprise network deployment and data center construction are inseparable from optical transceivers and switches. Optical transceivers are mainly used to convert electrical and optical signals, while switches are used to forward photoelectric signals. Among many optical transceivers, the SFP+ optical transceiver is one of the most widely used optical transceivers. Wh...

• November 11. 2021

When we use the optical module, sometimes improper use will lead to abnormal operation of the optical module, so in this case, how should we solve it? Today, ETU-LINK will tell you an answer. When the optical power of the optical module is too high or too low, how to diagnose the causes and the corresponding solutions.   Taking Huawei switch as an example, when the optical power alarm occurs,...

• November 09. 2021

In this blog, ETU-LINK will focus on introducing the type and transmission distance of the Gigabit single-mode SFP BIDI SC connector optical module. This series of optical modules can not only support 2km, 3km, 10km, 20km, 40km, 60km, 80km, 120km transmission distances, but also have commercial (0℃-70℃) and industrial  (-40℃-85℃) optional temperature ranges. In order to facilit...

• October 21. 2021

In this article, ETU-Link will explain to you what causes the high temperature of the optical module and how to solve it. Generally speaking, a brand-new optical module will not have any major problems during short-term use.     The optical module is a relatively sensitive optical device. When the operating temperature of the optical module is too high, it will cause problems s...

• October 19. 2021

The Fibre Channel switch originated from the Fibre Channel protocol. On the fourth layer of the Fibre Channel protocol, the Fibre Channel-based SCSI protocol for storage, the IP protocol for the network, and the virtual interface (VI) protocol for clusters mapped to the network architecture are established. Fibre Channel switches provide Fibre Channel switching for high-bandwidth and low-latency d...