Bohack

Recently I needed to connect to a Cisco router and didn’t have a serial cable on hand. The Cisco routers just like their switches come supplied with a console port built in. This console port is usually a female RJ-45 in the back of the unit and is labeled console. A lot of other manufacturers also use this method to connect to their equipment; everything from Sun servers to appliance servers.

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Again I find myself wiring up T1 circuits for a Telco provider that my company is going to use. I also find myself scouring the Internet for color codes for the T1 cable at the “Smart Jack”. The smart jack is where the demarcation point or demarc resides. So what is a demarc and what exactly is the smart jack… The demarc is where the Telco ends their responsibility and yours begins. The Telco needs a way to start your responsibility for wiring and internal maintenance, that is the threshold of the demarc. The smart-jack is a way that the phone company can loop or loopback the signal so that they can remotely check that everything is OK on their side.

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Well you really can’t find out where someone lives exactly, only the phone company can tell you that and that information is confidential. However you can find which town someone lives in using the NPA/NXX database. The North America Numbering Plan was first introduced in 1947 and adopted by AT&T in 1951. The NANP was made to simplify and speed up long distance calls or calls that needed to leave the Central Office they originated from. That is where ‘Mabel’ would get on and you would ask to connect to Bayside-0213, Bayside was the central office or ’229′ b=2 a=2 y=9 or you could ask for 229-0123. The letters on the phone are there for a reason and that was when the NANP came into existence.

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