What is a Telephone Jack ?
What is a Telephone Jack ?
Telephone Jack is a telephone connection interface registered with the Federal Communications Commission, sometimes called RJ-XX.
Telephone Jack It is a series of telephone connection interfaces registered with the US Federal Communications Commission (FCC).
It is derived from the partial interface of AT&T's Universal Service Classification Code (USOC) and is used in FCC regulations.
The most commonly used telephone jack is the RJ-11 jack, which usually has 6 conductors but only implements 4.
An RJ-11 jack is similar to a jack from a common wire that a home or office phone plugs into, with the jack connected to an outside twisted pair that connects to a telephone company central office or private branch exchange.
The 4 lines are distinctive, a pair of red and green, and a pair of black and white. Red and green lines carry voice or data. In the telephone company's external connections, black and white wires are used to carry low-voltage signals such as telephone lights. In a PXB system, they are used to carry other signals.
RJ-14 is the same as RJ-11, 4 wires for 2 phone lines. A set of wires includes red wires and green wires. Another set includes yellow and black wires. Each group loads one type of analog signal (voice or data)
RJ-45 is a single wire jack, which is used for digital transmission on ordinary telephone lines, which can be twisted pair and non-twisted pair.
D Type CAT3 RJ11 Female To Female Connector
Premier Cable D Type Cat3 Modular Keystone Jack
Cat.3 RJ11 4p4c Modular D type Tellephone Connector
Panel Mount RJ11 RJ12 4p4c Jack Cat3 Socket Adapter
Premier Cable D-Type Module RJ11 Cat3 jack connector
D-type network pass-through Telephone CAT3 socket module
CAT3 docking dual-pass 86 panel plug RJ11 socket D-type module
D-Type Connector Cat.3 RJ11 4P4C Modular Terminal panel Mount Classis Connector for Tellephone
1. D type XLR housing
2. RJ11 Connector
3. Panel mount connector
4. Chassis mount connector
5. Gender Female to Female
6. Application Audio & Video
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