Horizontal Link

A horizontal link is defined as the cabling between and including the telecommunications outlet/connector and the horizontal cross-connect

termination hardware. It was often referred to as the workstation cabling, horizontal cabling or user drop.

The Horizontal link Identifier shall be formatted as fs-an, where:

fs = TS Identifier

a = one or two alpha characters uniquely identifying a single patch panel,

a group of patch panels with sequentially numbered ports, an IDC termination block, or a group of IDC termination blocks, serving as part of the horizontal cross-connect

n = two to four numeric characters designating the port on a patch panel, or the section of an IDC termination block on which a four-pair horizontal cable is terminated in the TS

Identifiers shall be placed in the TR, on the patch panel or wiring block.

Each end of the cable shall be labeled within 12 inches from the ends, and in the work area each individual connector shall be labeled as well.

The Horizontal link (Hl) record shall contain the following information:

horizontal link identifier (primary indexing identifier, e.g.: A47)

cable type (e.g.: 4 pr, UTP, category 5e, plenum)

location of telecommunications outlet/connector (room, office, or grid location)

outlet connector type (e.g.: 8 position modular, T568A, category 5e)

cable length (e.g.: 51m/154ft)

location of TS and or CP (if class 2 through class 4)

cross-connect hardware type (e.g.: 48 port modular patch panel, T568A, category 5e)

service record of link (e.g.: passed category 5e at installation 1/12/2008, re-terminated and re-tested at cross-connect 4/22/2009 due to broken wire)

CMS must be able to document multiple media and mixed media horizontal cabling. This includes copper, fiber optic and coaxial cables. Additional items of information desired by the system owner or operator may be added at the end of the Hl record, such as:

location of test results

location of outlet within room or office

color of the connector or icon on the connector (e.g.: orange icon; or blue jack)

other telecommunications outlet/connectors at same location (generally, the other outlet connectors in the same faceplate, e.g.: A02, A03, A04; or B01, C01, D01)

faceplate configuration (e.g.: single gang, four port, telco ivory)

position of outlet connector on faceplate or MUTOA (eg.: top left)

pathway to outlet (e.g.: fishable wall or surface raceway)

presence or absence of MUTOA (is there a MUTOA in this link, yes or no)

length of work area cord if MUTOA is present

presence of absence of CP (is there a CP in this link, yes or no)

equipment circuit currently using link (e.g.: 100BaseT switch port #16)

current user name (e.g.: Bill Smith)