Network Cabling Handbook
As the network technician's ideal go-to reference, this one-stop guide to both copper and fiber network cabling contains detailed coverage of monitoring software, connectivity, troubleshooting, and management techniques.
TABLE OF CONTENTS Network Cabling Handbook
Chapter 18: Pulling Copper Horizontal Cable
OVERVIEW
Copper cables can be used for both horizontal and backbone media types. Large multipair UTP cables are used for backbone applications. Smaller, four-pair cables are installed for horizontal applications.
Horizontal cables are installed from the telecommunications room (TR) to the work area. These cables can be installed in a cable pathway that can run either below the floor or above the ceiling. Horizontal cables can also be installed above the ceiling of a building in the open space between the ceiling and the roof. This chapter will describe how to install copper horizontal cables.
ALLOWED MEDIA TYPES
The ANSI/TIA/EIA-568-B.1 standard released in 2001 supports the following media types in the horizontal subsystem for new cable installations (see Figure 18-1):
| ? | 100-ohm UTP cable |
Figure 18-1: Recognized horizontal media
| ? | 62.5/125 ?m multimode optical fiber cable |
| ? | 50/125 ?m multimode optical fiber cable |
One-hundred ohm UTP copper cables are the primary type of media installed for the horizontal subsystem (see Figure 18-2). These types of cables are preferred because most applications can be supported over UTP cable. Voice systems were the first to work over UTP cable. High-speed local area networks (LANs) were modified to operate over data grade UTP cables. This is the reason that the ANSI/TIA/EIA-568-B.1 standard recommends that a minimum of two cables be installed to each work area. One cable should be a category 3 UTP cable for voice applications and the other should be a data grade category 5e or...
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