Talkswitch CT.TS005.003904 User Manual page 288

Demarcation point
Residential Building
Incoming
telephone lines
Demarcation point
H O M E / O F F I C E W I R I N G G U I D E
The demarcation point is the point of interconnection
between the telephone company facilities and your building.
Location: It is usually a box located inside the building,
within 15 feet of the incoming phone wiring. In newer
houses, it may be located near the fuse box.
Wiring: The box will contain at least four posts used to
branch the incoming wiring to the internal phone wiring. The
RED post should have all the RED wires attached to it, the
GREEN should have all the GREEN wires attached etc.
This demarcation point shows two loops. Each loop has two
lines (four wires). Depending on how the jack is wired, the
phone can be plugged into Line 1, Line 2, or both.
Loop 2
Loop 1
Phone jack
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