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Proggresive Insurance Call Center Phone Board. Brandon, Florida
This is a prime example of the typical voice(phone) board. All the 66 blocks are mounted on Homaco frames that are mounted on 3/4" plywood, coated with fire retardent paint. There are approx. 4000 different pairs or voice lines coming to this MC (Main Cross Connect). Some of the pairs are in a outside plant cabling. These contain 300 pairs per cable. They are referred to as outside plant because this is the type of cable that is used to go underground through conduit piping. Some of these pairs come to the board inside 100 pair cables, that go directly into surge protection boxes. Consisting of both digital and analog protectors, that travel into a butt splice and go to the other building on the same campus. And finally the rest of the cables going on this board are the 25 pair switchtails, that are coming out of very large Infinity phone switches. The switch blocks are labeled in a sequence example A1, A2, A3, B1 etc... I have to know which 66 block is digital or analog, place a cross-connect(light blue wire seen in pic) from the card blocks to the individual phone pair at the other end of the board. From there the phone signal transfers into the outside plant cable to another room called an IC(IntermediateCrossconnect) where again transfers from the outside plant with a cross connect wire to the station cable. The station cable is the one that travels to the user(meaning you!). This is what you would plug your phone into. And that is just one style of setting up a phone system.