What is GLC-T?

2019-09-19
Cisco GLC-T, GLC-TE and SFP-GE-T optical modules are all Gigabit port optical modules with RJ45 interface and 100m transmission distance. They are cost-saving solutions for Gigabit Ethernet connection in data center, access network and storage area network applications. Therefore, these three types of optical modules are often difficult to distinguish. In fact, the transmission effect of these three optical modules is the same, which optical module can achieve Gigabit transmission, but it is noteworthy that the original Cisco GLC-T and SPF-GE-T optical modules were terminated on June 1, 2017 and replaced by GLC-TE optical module. SFP-GE-T optical module with NEBS 3 ESD function needs to be selected if it is traded directly with the telecommunications company (which requires NEBS).The cost of GLC-T and GLC-TE optical modules is low, and they can also meet the needs of Gigabit Ethernet. The Cisco Gigabit optical modules provided by Easy Communications can meet a large number of domestic and foreign market needs, and are 100% compatible with all brand switches.

NEBS is the abbreviation of network equipment building system and a set of standards for building network equipment that can withstand various environmental pressures. NEBS has three levels: level 1, Level 2 and level 3.Level 1 refers to the minimum compatibility with the environment; Level 2 is applicable to the limited operability of the product; Level 3 (NEBS 3 ESD) certification ensures the maximum operability of the equipment. It also proves that the equipment performs well under harsh environmental conditions and does not interfere with other electronic devices around it. Level 3 network equipment certified by NEBS 3 is in good condition. Key business applications are critical. That is to say, compared with GLC-T or GLC-TE, SFP-GE-T optical module can withstand greater stress and is less prone to failure.
  Cisco GLC-T SFP is a 1000Base-T small pluggable RJ45 interface converter. It can insert Gigabit Ethernet ports and connect them to the network. The GLC-T SFP transceiver provides 1 Gbps data transmission. In addition, it supports full-duplex Gigabit Ethernet connections for high-end workstations. The SFP transceiver works on five types of cables, and the maximum cable distance can reach 100 meters. However, GLC-T has not been sold since June 1, 2017. The following is the GLC-T data table. GLC-TE transceiver is also a Cisco SFP module designed for Gigabit Ethernet applications. Compatible with IEEE802.3 1000BASE-T standard. It is an alternative model of GLC-T, which means that GLC-TE is an improved technology product. Therefore, the design of the transceiver has the same characteristics as that of GLC-T type, but the temperature range extends from -5 degrees to 85 degrees. GLC-TE is the latest technology and will definitely continue to sell for many years. The following table shows the GLC-TE data table. GLC-TE Data Table. GLC-T and GLC-TE: Differences and Similarities.

The difference. From the above, the main difference between GLC-T and GLC-TE is the working temperature. This means that GLC-TE can work at lower or higher temperatures without any damage. Similarities. Both GLC-T and GLC-TE are 1000BASE-T copper transceivers that meet the standard of 802.3. They support the same data transmission speed and cable distance through the CAT5 copper cable. However, considering that the GLC-T SFP transceiver has been discontinued, GLC-TE is the best choice. In addition, for GLC-T and GLC-TE, there are many similarities besides working temperature. Two SFP transceivers can be used in the following cable systems.

For GLC-T and GLC-TE, we find the differences and similarities between them. Both GLC-T and GLC-TE SFP transceivers are widely used in various industries and departments of Gigabit Ethernet for their convenience, economy and efficiency. 
RECENT BLOG POST
  • 01
    2019-10
    With the continuous development of 5G communication technology, 100G modules are gradually becoming popular. We know that there are many kinds of packages for 100G optical modules. From 2000 to now, the optical module package types have been rapidly developed. Its main package types are: GBIC, SFP, XENPAK, SNAP12, X2, XFP, SFP+, QSFP/QSFP+, CFP, CXP. In the fast-developing network era, some 100G optical modules avoid the risk of being eliminated, and upgraded and revised with the wave of the Internet, such as 100G CFP optical modules.
  • 01
    2019-10
    1. What is the CWDM SFP? The CWDM optical module is an optical module using CWDM technology to implement the connection between the existing network device and the CWDM multiplexer/demultiplexer. When used with a CWDM multiplexer/demultiplexer, CWDM optical modules can increase network capacity by transmitting multiple data channels with separate optical wavelengths (1270 nm to 1610 nm) on the same single fiber.
  • 01
    2019-10
    AOC is the abbreviation of Active Optical Cables, which is called Active Optical Cables in Chinese. AOC active optical is to encapsulate two optical modules and cable together. Because the medium of transmission in the middle is optical cable, AOC optical module, which contains laser devices, has a higher price for DAC. However, its optical aperture is not exposed, it has high reliability, and its working distance can be customized for a long distance of less than 100 meters.
  • 01
    2019-10
    Dense Wavelength Division Multiplexing (DWDM) technology is capable of transmitting data in an optical fiber using bit wavelength parallel transmission or string line transmission using the wavelength of the laser.It is widely used in different fields of communication networks, including long-distance backbone networks, metropolitan area networks (MANs), residential access networks, and local area networks (LANs).The DWDM optical module is the optical module that uses this technology, so the DWDM optical module has high bandwidth and long-distance transmission characteristics.