Short for Category 5 Enhanced, Cat-5e network cabling is used as a cabling infrastructure for 10BASE-T (Ethernet), full duplex 100BASE-TX (Fast Ethernet) and 1000BASE-T (Gigabit Ethernet, or GbE) networks. The Cat 5e standard provides performance of up to 100 MHz and can be used up to a maximum length of 100 meters.
As with Category 5 (Cat-5) cables, Cat 5e cables typically consist of four unshielded twisted pairs (UTP) of copper wire terminated by RJ45 connectors. Cat 5e is distinguished from the original Cat 5 standard primarily in its performance requirements. Cat 5e has stricter specifications in a number of areas, including Near-End Crosstalk (NEXT), Power Sum Equal-Level Far-End Crosstalk (PS-ELFEXT), attenuation and return loss.
The Cat 5e standard was first released in 1999 as part of the Telecommunications Industry Association’s TIA/EIA-568-5-A document specification. The Cat 5e cable standard is backward compatible with the Cat 3 and Cat 5 cable standards.
- iPhone 4S
Apple released an updated fourth generation of its hugely popular iPhone mobile smartphone in October 2011. The new phone, called the iPhone 4S, was widely expected to be the fifth-generation iPhone 5 prior to its release, but Apple instead chose to focus on the software and internal aspects of the phone instead of giving the […]
Siri is a built-in “intelligent assistant” that enables users of Apple iPhone 4S and later and newer iPad and iPod Touch devices to speak natural language voice commands in order to operate the mobile device and its apps. Users can speak commands — and receive audible confirmation from Siri — to send messages, place calls, […]
- iOS 5
The fifth major update for Apple’s iOS mobile operating system that powers portable devices such as iPhones, iPads and iPod Touches. Apple iOS 5 debuted in October 2011 at the same time as the iPhone 4S and introduced powerful new features such as a built-in instant messaging client (iMessage), tabbed browsing in the Safari Web […]
iCloud is a suite of free cloud-based services from Apple that helps users store and synchronize digital content across computers and numerous iOS-supported devices such as iPhones, iPads and iPod Touches. iCloud serves as the successor to Apple’s MobileMe service and is included free as part of Apple’s iOS 5, which first became available in […]
- application topology mapping
A subset of network topology and network mapping software, application topology mapping software tools are designed to map or diagram the layout of mission-critical applications in an enterprise, how different apps are connected to each other, how they can be accessed by various computers and networks, and how they are currently performing in terms of […]