Network Plus Certification/Media and Topologies/Wiring Distribution

Objective 2.8: Install components of wiring distribution

66 block
A 66 block has a maximum 16 MHz Category 3 signaling compatibility.

110 block
A 110 block a maximum 100 MHz Category 5 signaling compatibility.

25 pair
This is a cable from a telephone company's lines containing 25 twisted pairs that is then punched down into a 66 block (see above).

100 pair
This is a cable from a telephone company's lines containing 100 twisted pairs that is then punched down into a 110 block (see above).