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2. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   Closed-circuit television (CCTV), also known as video surveillance, [1] [2] is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point , point-to-multipoint (P2MP), or ...

3. Closed-circuit television camera - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television...

   IP cameras or network cameras are digital video cameras, plus an embedded video server having an IP address, capable of streaming the video (and sometimes, even audio). [3] Because network cameras are embedded devices, and do not need to output an analogue signal, resolutions higher than closed-circuit television 'CCTV' analogue cameras are ...

4. S-mount (CCTV lens) - Wikipedia

   en.wikipedia.org/wiki/S-mount_(CCTV_lens)

   The S-mount is a standard lens mount used in various surveillance CCTV cameras and webcams. It uses a male metric M12 thread with 0.5 mm pitch on the lens and a corresponding female thread on the lens mount. S-mount lenses are often called "M12 lenses" due to the ISO metric screw thread designation of the lens's thread, M12 × 0.5.

5. Angle bracket (fastener) - Wikipedia

   en.wikipedia.org/wiki/Angle_bracket_(fastener)

   Angle brackets feature holes in them for screws. A typical example use of is a shelf bracket for mounting a shelf on a wall. In general, angle brackets have a wide range of applications, and are used, among other things, in building construction, mechanical engineering or to join two pieces of furniture

6. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   The 19-inch (482.6 mm) standard rack arrangement is widely used throughout the telecommunications, computing, audio, video, entertainment and other industries, though the Western Electric 23-inch standard, with holes on 1-inch (25.4 mm) centers, is still used in legacy ILEC/CLEC facilities.

7. Lens mount - Wikipedia

   en.wikipedia.org/wiki/Lens_mount

   CCTV, PCB: Edmund Optics μ-Video Bolex Bajonet 23.22 mm 16 mm: Breech lock Cinematography effective focal distance 17.526 mm (0.69 inches) due to beam splitter behind mount flange (accepts C-mount lenses with adapter) 1/3" bayonet mount: 25 mm 1/3" (5.24 x2.94) Bayonet Video JVC professional video cameras M39 (a.k.a. L-Mount, LTM) 28.80 mm 35 ...