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August 05, 2015

Cisco 1000BASE-T SFPâ€”GLC-T

SFP ( small form pluggable ) transceiver, also called Mini-GBIC by the vendors, is a compact, hot-pluggable transceiver to transmit electrical signal into an optical signal, which is designed to support SONET, gigabit Ethernet, Fibre Channel, and other communications standards.

SFP transceivers are available with a variety of different transmitter and receiver types, allowing users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber type (e.g. multi-mode fiber orsingle-mode fiber). SFP transceivers are also available with a copper cable interface, allowing a host device designed primarily for optical fiber communications to also communicate over unshielded twisted pair networking cable. Today we are going to talk about Cisco 1000BASE-T copper SFPâ€”GLC-T.

Introduction of 1000BASE-T SFP Transceiver Module

For beginners in this fields, they may get dizzied about the termâ€”1000BASE-T. Therefore, a short profile about 1000BASE-T will show to you. 1000BASE-T is one of the physical layer standards for Gigabit Ethernet. The word "BASEâ€ refers to baseband, meaning that an unfiltered line does not require a digital modulation scheme. While the letter "Tâ€ refers to Twisted- pair cabling ( Cat-5, Cat-5e, Cat-6, Cat7 ). The data transmitted by 1000BASE-T is via four copper pairs, eight bits at a time.

1000BASE-T SFP transceiver moduleoperates on the 1000BASE T. It supports 10/100/1000 autonegotiation and Auto MDI/MDIX. 1000BASE T SFP transceiver module uses all four cable pairs for the link and five levels coding scheme. It sends and receives simultaneous transmission on each pair. And 1000BASE-T SFP transceiver can be a maximum length of 100 meters.

Details of GLC-T

GLC-T is Cisco 1000BASE-T SFP transceiver module.Cisco GLC-T 1000BASE-T SFP transceiver moduleis a kind of hot swap of the input / output device, which is compliant to 1000BASE-T standard. GLC-T provides 1Gbps data transfer and full-duplex Gigabit Ethernet connectivity to high-end workstations and between wiring closets over existing copper network infrastructure. And its dimension is 0.6 in x 2.8 in x 0.6 in. GLC-T supports RJ-45 connector and operates on Category 5 unshielded twisted-pair copper cabling with a specified distance up to 100 m (328 ft). This 1000BASE-T SFP is compliant with MSA and is tested for 100% functionality for outstanding network performance.

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