Ethernet Cables

Ethernet cables are designed to support Ethernet, a standard protocol for the connection of computers in a local area network (LAN). There are two basic types of products: bulk cables and cable assemblies. Ethernet bulk cables are sold by the foot or in reels. Ethernet cable assemblies are collections of wires or cables that are banded into a single unit with connectors on at least one end. Specifications for Ethernet cables include Ethernet type, application or end-use, cable construction, features and standards, and rated temperature. 

Ethernet cables are designed for specific Ethernet types. Choices include 10Base-T, 100Base-TX, 100Base-FX, and 1000Base-T. Products may be shielded, plenum-rated, or designed for extreme environments or clean room use. In terms of applications, Ethernet bulk cables and Ethernet cable assemblies are designed for audio, camera or imaging, computer cable, military or defense, medical, networking, telecommunications, or video. Specialized and proprietary Ethernet cables are also available.  

Cable type is important to consider when specifying Ethernet cables. Cat 3 cables are 100-ohm twisted-pair copper cables that meet or exceed specification standards such as ANSI / TIA / EIA-568-A and ISO / IEC 11801. Cat 5, Cat 5E, and Cat 6 Ethernet cables are also available. Other twisted pair cables are also available. Coaxial cables consist of two cylindrical conductors with a common axis. Triaxial cables are three-conductor devices with one conductor in the center. Fiber optic cables superior bandwidth and immunity to noise. RG6 cables are used in cable TV or satellite applications.  

In addition to cable type, Ethernet cables carry construction specifications for cable length, gender and connector type. Cable length is listed in English and/or metric units. There are three choices for gender: male-male, male-female, and female-female. Connector types for SCSI cables are numerous. Choices include Centronics 50 (Centronics Corp.); DB9, DB15, DB25, DB37, DB50, and DB68; Internal 50-pin SCSI and internal 68-pin SCSI; and Micro Centronics 36, 50, 60, and 68. Telco 50, USB Type A, and USB Type B are additional connector-type choices for Ethernet cables.   

Ethernet cables may bear various marks or carry certifications and approvals. For example, Ethernet cables and cable assemblies that are sold in Canada or Europe often bear the CSA mark or the CE mark, respectively. Certifications and approvals are available from DEMKO, ISO, the IEC, the FCC, and ETL SEMKO. Ethernet cables that bear the UL mark are also available.

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Part Numbers for Ethernet Cables