Structured Cabling: Horizontal Runs

What are Horizontal Runs?

Structured cabling horizontal runs begin at the telecommunication equipment room and extend to the individual workstation outlets on a single floor of a building. Horizontal runs may be routed through the building walls.

Horizontal Runs: UTP Cable Insertion Loss (Attenuation) / NEXT Loss (Worst Pair)

To find the chart for your cable, select a cable type.

CAT 3⬇

CAT 4⬇

CAT 5e⬇

CAT 6⬇

Frequency
(MHz)		 Cat 3 Cat 4
Attn*
(dB)		 NEXT*
(dB)		 Attn*
(dB)		 NEXT*
(dB)
0.064 0.9 --- 0.8 ---
0.150 --- 53 --- 68
0.256 1.3 --- 1.1 ---
0.512 1.8 --- 1.5 ---
0.772 2.2 43.0 1.9 58
1.0 2.6 40.3 2.2 56
4.0 5.6 32.3 4.3 47
8.0 8.5 27.8 6.2 42
10.0 9.7 26.3 6.9 41
16.0 13.1 23.2 8.9 8.9
20.0 --- --- 10.0 36
25.0 --- --- --- ---
31.25 --- --- --- ---
62.5 --- --- --- ---
100.0 --- --- --- ---
*100 meters (328 feet) Cable
Frequency
(MHz)		 Cat 5e Cat 6
Attn*
(dB)		 NEXT*
(dB)		 Attn*
(dB)		 NEXT*
(dB)
0.064 0.8 --- --- ---
0.150 --- 74 --- ---
0.256 1.1 --- --- ---
0.512 1.5 --- --- ---
0.772 1.8 67.0 1.8 76.0
1.0 2.0 65.3 2.0 74.3
4.0 4.1 56.3 3.8 65.3
8.0 5.8 51.8 5.3 60.8
10.0 6.5 50.3 6.0 59.3
16.0 8.2 47.2 7.6 56.2
20.0 9.3 45.8 8.5 54.8
25.0 10.4 44.3 9.5 53.3
31.25 11.7 42.9 10.7 57.9
62.5 17.0 38.4 15.4 47.4
100.0 22.0 35.3 19.8 44.3
*100 meters (328 feet) Cable

Available CAT Cable Products

Cat 6 Cable

Cat 6 Cable for Data Communication Shop Cat 6 Cable

Cat 5e Cable

CAT5E Cable for Data Communication Shop Cat 5e Cable

Telecom Wire and Cable

Twisted pair cable unshielded Shop Telecom Cable

Wire Marking Sleeve

Permasleeve Heat Shrink Polyolefin Wire Marking Sleeves Shop Labeling Equipment

Cable Puller

Wire cable puller Shop Cable Pullers

Cable Tray

Cable tray Shop Cable Trays
See Our Other Helpful Data Communication Cabling Guides:

Warning: When using this information to perform electrical work, call a licensed electrician and consult the NEC® for safety. All licensed electricians have passed examinations covering the National Electric Code®, know state and local building codes, and may carry insurance to cover damages.