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2. Telephone jack and plug - Wikipedia

   en.wikipedia.org/wiki/Telephone_jack_and_plug

   A telephone jack and a telephone plug are electrical connectors for connecting a telephone set or other telecommunications apparatus to the telephone wiring inside a building, establishing a connection to a telephone network. The plug is inserted into its counterpart, the jack, which is commonly affixed to a wall or baseboard. The standards for ...

3. Insulation system - Wikipedia

   en.wikipedia.org/wiki/Insulation_system

   Basic insulation is any material added to protect a user from accidental contact with energized parts. Supplemental insulation is rated to withstand 1500 volts AC. Double insulation is a design concept where failure of one insulation system will not expose the user to a shock hazard due to the presence of a second independent layer of insulation.

4. IDC (electrical connector) - Wikipedia

   en.wikipedia.org/wiki/IDC_(electrical_connector)

   An insulation-displacement contact (IDC), also known as insulation-piercing contact (IPC), is an electrical connector designed to be connected to the conductor(s) of an insulated cable by a connection process which forces a selectively sharpened blade or blades through the insulation, bypassing the need to strip the conductors of insulation ...

5. Sleek Socket Ultra-Thin Electrical Outlet Cover is a must-have

   www.aol.com/lifestyle/sleek-socket-amazon...

   Sleek Socket Ultra-Thin Outlet Cover The Sleek Socket is a handy three-outlet power strip that stays out of sight while leading into one inconspicuous cover. $24 at Amazon

6. Knob-and-tube wiring - Wikipedia

   en.wikipedia.org/wiki/Knob-and-tube_wiring

   Its cloth and rubber insulation can dry out and turn brittle. [10] It may also be damaged by rodents and careless activities such as hanging objects from wiring running in accessible areas like basements or attics. Currently, the United States National Electrical Code forbids the use of loose, blown-in, or expanding foam insulation over K&T ...

7. 110 block - Wikipedia

   en.wikipedia.org/wiki/110_block

   A 110 punch block. A 110 block is a type of punch-down block used to terminate runs of on-premises wiring in a structured cabling system. The designation 110 is also used to describe a type of insulation displacement contact (IDC) connector used to terminate twisted pair cables, [1] which uses a punch-down tool similar to the type used for the older 66 block.

8. Modular connector - Wikipedia

   en.wikipedia.org/wiki/Modular_connector

   The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the Trimline telephone. [1] Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through PhoneCenter stores in the early 1970s. [2]

9. Keystone module - Wikipedia

   en.wikipedia.org/wiki/Keystone_module

   The origin of the "Keystone" module may be traced back to US Patent 4261633 of Aug 27, 1979 for a "Wiring module for telephone jack" - by Amp Incorporated. [1] The module referred to in that patent was affixed by "A pair of diagonally inclined mounting flanges (which) include stepped, panel bearing surfaces .. at the outer free ends thereof."