Lesson 4: Basic Telephone Wiring Flashcards
The inside wiring for telephones was deregulated in what year?
1984
The traditional cable for use in installing basic telephones is called __?__ wire.
D-Station
Identify each of the following acronyms: UTP STP PBX LAN WAN COAX FO DTMF
UTP - unshielded twister pair STP - shielded twisted pair PBX - private branch exchange LAN - local area network WAN - wide area network COAX - Coax FO - fiber optics DTMF - dual tone multi-frequency
The nominal voltage supplied from the telephone company on public telephone lines (except during ringing) is __?__.
-48VDC
Pulse dial telephones will or will not normally work on lines equipped for tone dial operation.
will
What tone(s) would be transmitted when the digit “*” is dialed on a touch-tone phone?
1336 Hz and 852 Hz
When a phone line is brought into a building by the phone company, the phone circuit is terminated at a point called the __?__.
NID-Residential
List the two items which can be disconnected from each other at the “point of demarcation” of a telephone service.
Network and CPE (Customer Premise Equipment)
Wire used to distribute telephone signals within a building is identified as __?__ wire.
Residential POTS
When using D-station wire, the __?__ (what color) conductor is connected to the “Line-1 TIP” conductor, and the __?__ (what color) conductor is connected to the “Line-1 RING” conductor.
Green
Red
A specification number __?__ modular jack contains connection points for two telephone pairs.
RJ11
In a building with six phone outlets, __?__ (how many) station wire(s) return to the network interface or wire junction if an open-loop topology is used in wiring the system.
One
If the building in Question 12 is wired using home-run topology, then __?__ (how many) wire(s) return to the network interface or wire junction.
Six
