New and Used Extreme 45113 Switch Modules for Sale
Short Description: Used / Refurbished Extreme Networks Alpine GM-4Ti 4-port 100/1000BASE-T RJ-45 Switch Module - Line Card - Blade for Alpine 3800 Series Chassis (Extreme Networks 45113). Looking for Extreme Switch Modules? Network Liquidators holds a huge quantity of new, refurbished, and used Extreme Networks 45113 Switch Modules for sale. With our state of the art warehouse and shipping, we usually can ship your Extreme 45113 out to you in 1 or 2 business days. Not only do we stock new or used 45113 Switch Modules, we also carry a wide selection of Extreme Networks Alpine 3800 accessories, parts, and components. Unlike many other competitors, we offer a Lifetime Warranty on all pre-owned, refurbished, and used Extreme 45113 (This Warranty applies to End-Users Only). With our enhanced testing and refurbishing processes, you are guaranteed your 45113 will be in perfect working and physical condition. We are also interested to buy any Extreme Alpine 3800 Switch Modules from you at a very reasonable price and will pay all shipping charges to expedite your Extreme equipment to our warehouse facility. Call us at 1-800-998-9862 Option 1, click the image on the top of this page to chat live online with a sales representative, email Extreme sales, or Request a Quote by clicking the link above. To limit the type of equipment we may buy from you, it's important that you know we only buy and sell networking and telecom equipment. If you are looking for used, refurbished, or new Extreme Networks 45113 or any other piece of Extreme series hardware, please bookmark our site for future reference as we will consistently add inventory. We appreciate your time and business, visit us back anytime. You may also be interested in Extreme Networks 45114 | Extreme Networks 45211		45113 Information MFG List Price: Weight: New: Factory Refurbished: Refurbished: -- 10 LBs Call Call Call Browse by Type: Extreme Networks Switch Modules Browse by Series: Extreme Networks Alpine 3800 Inventory Updated on 3/20/2010

45113 Product Specifications

The Extreme Alpine 45113 is a 4-port 100/1000BASE-T RJ-45 Module for Alpine 3800 Chassis Series. This blade is also known as GM-4Ti Module.

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What is 1000Base-T?

1000BASE-T (also known as IEEE 802.3ab) is a standard for gigabit Ethernet over copper wiring. It requires, at a minimum, Category 5 cable (the same as 100BASE-TX), but Category 5e ("Category 5 enhanced") and Category 6 cable may also be used and are often recommended. 1000BASE-T requires all four pairs to be present and is far less tolerant of poorly installed wiring than 100BASE-TX.

Each network segment can have a maximum distance of 100 meters, although several chip manufacturers claim 150 meters. Autonegotiation is a requirement for using 1000BASE-T[2] according to the standard. Several device drivers will allow you to force 1000 Mbps full duplex to eliminate autonegotiation issues.

In a departure from both 10BASE-T and 100BASE-TX, 1000BASE-T uses all four cable pairs for simultaneous transmission in both directions through the use of echo cancellation and a 5-level pulse amplitude modulation (PAM-5) technique. The symbol rate is identical to that of 100BASE-TX (125 MBaud) and the noise immunity of the 5-level signaling is also identical to that of the 3-level signaling in 100BASE-TX, since 1000BASE-T uses 4-dimensional Trellis Coded Modulation (TCM) to achieve a 6 dB coding gain across the 4 pairs.

The data is transmitted over four copper pairs, eight bits at a time. First, eight bits of data are expanded into four 3-bit symbols through a non-trivial scrambling procedure based on a linear feedback shift register; this is similar to what is done in 100BASE-T2, but uses different parameters. The 3-bit symbols are then mapped to voltage levels which vary continuously during transmission. Non-trivial DSP algorithms and processing power were involved with the introduction of PAM-5, hence its delayed introduction after 802.3z.

What is RJ-45?

Short for Registered Jack-45, an eight-wire connector used commonly to connect computers onto a local-area networks (LAN), especially Ethernets. RJ-45 connectors look similar to the ubiquitous RJ-11 connectors used for connecting telephone equipment, but they are somewhat wider.