Point of appearance is a generic term for any point in a
telephone/data circuit from which a technician can test or pull stats. Some appearances are virtual, such as a
Digital cross connect system computer terminal. Others are physical, like a
punch down COSMIC frame
A frame is often a structural system that supports other components of a physical construction and/or steel frame that limits the construction's extent.
Frame and FRAME may also refer to:
Physical objects
In building construction
*Framing (con ...
where a technician can place a
test set, or a
heat coil socket. In the
outside plant there is an appearance at the cross box, pedestal, and
network interface device. The ultimate appearance is the telephone or other
customer premises equipment (CPE).
See also
*
Demarcation point
In telephony, the demarcation point is the point at which the public switched telephone network ends and connects with the customer's on-premises wiring. It is the dividing line which determines who is responsible for installation and mainte ...
*
Point of presence
A point of presence (PoP) is an artificial demarcation point or network interface point between communicating entities. A common example is an ISP point of presence, the local access point that allows users to connect to the Internet with their ...
References
Communication circuits
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