List of Connections
On a conventional wired telephone, there are 4 connections, each of which may be hardwired, but more often uses a plug and socket:
- telephone line to phone cable
- The wall jack. This connection is the most standardized, and often regulated as the boundary between an individual's telephone and the phone network. (In many homes, though, the boundary between utility-owned and household-owned cable is a jack on an outer wall; all wall jacks in the home are part of the household's internal wiring.)
- phone cable to phone base
- This and further connections are generally not regulated, but instead have de facto standards. It is often 6P4C, which is often RJ11, but may be proprietary or hardwired.
- phone base to handset cable
- handset cable to handset
- The last two (the handset cable) has a de facto standard of a 4P4C connector with straight through cable.
Some of these may be absent:
- Wired telephones may not have a separate base and handset,
- the defining characteristic of wireless telephones is that they do not have a handset cable, and
- the defining characteristic of mobile telephones is that they do not have a phone cable.
Read more about this topic: Telephone Plug
Famous quotes containing the words list of, list and/or connections:
“I made a list of things I have
to remember and a list
of things I want to forget,
but I see they are the same list.”
—Linda Pastan (b. 1932)
“Do your children view themselves as successes or failures? Are they being encouraged to be inquisitive or passive? Are they afraid to challenge authority and to question assumptions? Do they feel comfortable adapting to change? Are they easily discouraged if they cannot arrive at a solution to a problem? The answers to those questions will give you a better appraisal of their education than any list of courses, grades, or test scores.”
—Lawrence Kutner (20th century)
“The conclusion suggested by these arguments might be called the paradox of theorizing. It asserts that if the terms and the general principles of a scientific theory serve their purpose, i. e., if they establish the definite connections among observable phenomena, then they can be dispensed with since any chain of laws and interpretive statements establishing such a connection should then be replaceable by a law which directly links observational antecedents to observational consequents.”
—C.G. (Carl Gustav)