Communications Cables Revised: 08/22/99 20:08
Residential Installation - Termination Reason for Revision: New page
At each wall outlet, the CAT 5 UTP is terminated in a Superior Modular brand 8 position RJ45 type data jack configured to 568B pinouts. While 568B is more prevalent for commercial data applications, the 568A pinout scheme is actually more conducive to a combined voice & data installation in the home. In this install, 568B was used and the pinout scheme was compensated for at the incoming service line. Note that a standard RJ11 type plug used by phones will fit in a RJ45 jack, allowing the jacks to be used for voice or data at the home owners choice.
An equipment rack was built from 2 x 4s and scrap lumber to hold the patch panel during termination. After termination, the distribution points were permanently mounted on the wall for greater stability and protection to the components, and to free up floor space.
Every cable that runs to a jack on a faceplate is terminated on a Superior Modular brand 48 port Category 5 patch panel. For faceplates with two jacks, the runs were punched down so that the top jack on a faceplate terminates in a top jack on the patch panel The bottom jacks were done likewise. This picture shows the back of the patch panel before the wires were organized and bundled together. Note that I was working with wire samples provided for free, so limited color coding of the runs was done, although this would be desirable.
This is the 48 port patch panel with the cables organized and dressed. It is attached to the wall using a hinged rack-mount bracket.
This is the distribution block for the phone lines. It consists of a 66 block type punchdown pre-wired to 568B pinout RJ45 outlets. It is manufactured by Hubbell. The outlets are daisy-chained together using individual pairs from a piece of CAT 5 cable. Starting from the left at position one of the block, white/blue is punched down on position 1, 5, 9, etc. White/orange is punched down on position 2, 6, 10, etc. The pattern is continued for white/green and white/brown. This block allows for up to 12 phone extensions, each capable of handling 4 phone lines. Additional blocks could be daisy chained to this one to provide for more extensions.
Incoming line one is punched down on position 1 of the block. In the 568B pinout scheme, this corresponds to the center 2 pins of the phone plug, which is just where your phone equipment expects it. Your phone equipment expects line two be split on either side of the center pins. This corresponds to pair three (white/green) in the 568B scheme, so incoming line two is punched down on position 3 of the block. If the 568A pinout scheme was used, line two could be punched down on position two of the block. The two red crimp connectors above the block are where the security system connects to line one before it is terminated on the block.
This photo shows the communication distribution installation. In the center is the patch panel where all the runs to the faceplates terminate. On the right is the phone distribution block. Patch cords (grey) are used to connect from the phone block to any port on the panel where a phone extension will be plugged into a faceplate jack. On the left is a small Ethernet hub. Patch cords (yellow) are used to connect the hub to any port on the panel where a PC will be plugged into a faceplate jack.
The video distribution center. The incoming CATV line is terminated in a 22 dB amplifier with four outputs. Each output is connected to an 8 position splitter. The coax runs are connected to the splitters for distribution of the CATV signal throughout the house. This set up can be flexed to handle multiple video inputs or Internet access via cable modems.
The whole shebang.

Security wiring terminates in the grey box on the right. The orange cables looped above are the fiber optic cables installed for future termination and use.

Return to Notebook Page 1