Prior to the start of Installation, it is important to evaluate and document the existing cable plant, making note of the layout and distances between facilities and cabling pathways. A useful method of recording and documenting this information can be found in the EIA/TIA 606 Administration Standard. This document also provides useful standards for using colored labels to color code segments of your cabling plant.

Once the structure of the plant has been evaluated and all required modifications noted, a daily work; schedule can be laid out for review with the client. When the plan is approved, installation can begin. Any unexpected circumstances that arise during installation should be immediately resolved with the customer.

Cable Handling

One of the most critical requirements in installing Category 5 cable is making sure that the cable is never bent beyond a 90 degree angle.A cable bend radius of 4 times the diameter of the cable is recommended (on a 4-pair cable, this is approximately one inch). The bend radius translates to special handling concerns when mounting face plates at work stations. Extra cable length should be minimized and special care taken when feeding the cable into the wall outlet while mounting the face plate.
Also, exercise care any time a cable pull occurs over or around an edged or cornered surface where excessive force may disturb the geometry of the pairs. Maximum pulling tension on a 4-pair cable is 25 pounds.

The following chart summarizes other guidelines necessary for proper Installation:


  • Store the cable in a protected, moisture-free area

  • Avoid unnecessary bends

  • Replace damaged cable

  • Make all connections via patch panels or cross connect blocks

  • Use velcro straps, nail-on cable clamps and D-rings to support and position the cable

  • Use separate compartments in cable tray for power and telecommunication cables

  • Avoid sources of heat such as heating ducts and hot water pipes

  • Avoid all sources of EMI (electromagnetic Interference)

  • Maintain 24 inches minimum separation from fluorescent lighting ballasts

  • Maintain the same pin-pair assignment throughout the cabling plant.


  • Step on the cable

  • Exceed the maximum bend radius of 4 times the diameter

  • Exceed the maximum tensile loading of pounds

  • Over-tighten cable ties or cords

  • Splice, bridge tap or repair cable

  • Use staple guns

  • Overstress the cable

  • Run power cables in conduit with telecommunication cables

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