What is a demarc?
Demarc is short for demarcation location. This is the point where lines managed by Allstream and lines managed by your interconnect meet. It may be a telephone room on your floor, on another floor or within your suite. It can be in a closet or in a lunch or staff room. The termination equipment can be a PBX, key system or a bix block. It is important to know where your demarc is, how you can gain access to it (whether or not it is locked) and what type of equipment you are terminating to.
DSL service is typically provided on the local telephone company’s lines up to the DEMARC for your residence or business. The DEMARC is where the telephone company’s wires end – and yours begin. Sometimes this is a box on the outside of your building or in your basement. In business environments this may be punch-down blocks or other high capacity interconnects, most often where large telephone cables enter your building.
