Color Code Standard of Ethernet Cable – T-568B and T-568A

Ethernet cables are the standard cables used for almost all purposes that are often called patch cables. In an article “How to Choose Ethernet Cable”, we know that Ethernet cables can be categorized into many types, like straight-through and crossover Ethernet cable, UTP or STP, Cat5 or Cat6, etc. But we know little about the pins and wiring in Ethernet cables and RJ45 plugs. RJ-45 conductor cable contains 4 pairs of wires, each consisting of a solid colored wire and a strip of the same color. There are typically two…

Read More

SFP+ DAC Cables for Cisco Catalyst 4500-X Series Switch

Driven by the cloud computing and improvement of technology, 21st century witnesses a major shift from traditional enterprise data centers to much larger cloud data centers. These large data centers require a much higher-performance network, and need to interconnect many thousands of servers with predictable bandwidth and low-latency. Cisco 10G Catalyst 4500-X series switch is the highest throughput 10G Ethernet switch in the industry. It provides the high scalability, simplified network virtualization, application monitoring, and integrated network services for space-constrained environments in campus networks which meets the business growth objectives…

Read More

Introduction to Fiber Optic Data Links

As a communications subsystem, a fiber optic data link connects inputs and outputs (I/O) from electronic subsystems and transmits these signals over fiber optic cables. More specifically, this data link converts an electrical input signal into an optical signal, then sends the optical signal over an optical fiber, and finally converts the optical signal back to an electrical signal, actually operating an alternative to copper cabling or a wireless subsystem. There are three parts included in a fiber optic data link: transmitter, optical fiber, and receiver. And most systems use…

Read More

Decoding the Wavelength in Fiber Optics

Wavelength as we have been heard so many times in fiber optics, is not simply the term used to refine the color of the light. The light used in fiber optics in not the one that we can see by our eyes, as we use light in the infrared region which has wavelengths longer than visible light, typically around 850 nm, 1300 nm, 1550 nm. So why do we use infrared region? Why is 1550nm the most widely used wavelength in optical communication systems? What will happen if I transmit…

Read More

What You Need to Know About LC Connector Families?

Driven by the growing bandwidth requirement, data center designers have to install more and more fiber optic cables in a given space, which results in mess cable management and large maintenance cost. Thus finding an easy-to-manage and space-saving method for high-density cabling is becoming a hot issue for data center managers. LC to LC fiber cable, with its low interface loss specification and small footprint, gains popularity among data center installers. In addition, applications like cable television (CATV), fiber-to-the-home (FTTX) and dense wave division multiplexing (DWDM) currently are using LC…

Read More