Networking & Wiring
PC Medics consults and installs wireing for the following applications:
Computer Data Networks, Cat5e or Wireless 802.11a/b/g
Telcom, Cat5e
Video, Cable, Satilite, RG6
Sound Systems, 14/2 THX
The Following is some basic information types of cable we use.
Cat 5e cable is an enhanced version of Cat 5 that adds specifications for far end crosstalk. It was formally defined in 2001 in the TIA/EIA-568-B standard, which no longer recognizes the original Cat 5 specification. Although 1000BASE-T was designed for use with Cat 5 cable, the tighter specifications associated with Cat 5e cable and connectors make it an excellent choice for use with 1000BASE-T. Despite the stricter performance specifications, Cat 5e cable does not enable longer cable distances for Ethernet networks: cables are still limited to a maximum of 100m (328ft) in length (normal practice is to limit fixed ("horizontal") cables to 90m to allow for up to 5m of patch cable at each end). Cat 5e cable performance characteristics and test methods are defined in TIA/EIA-568-B.2-2001.
RG-6/U is a common type of coaxial cable used in a wide variety
of residential and commercial applications. The term "RG-6" itself
is quite generic and refers to a wide variety of cable designs, which differ
from one another in shielding characteristics, center conductor composition,
and dielectric type. RG-6 was originally a military spec where RG means Radio
Guide, but is now obsolete; in practice, the term "RG-6" is generally
used to refer to coaxial cables with an 18 AWG center conductor and 75 ohm characteristic
impedance.The most commonly-recognized variety of RG-6 is CATV distribution
coax, used to route cable television signals to and within homes, and RG-6 type
cables have become the standard for CATV, mostly replacing the smaller RG-59,
in recent years. CATV distribution coax typically has a copper-coated steel
center conductor and a combination aluminum foil/aluminum braid shield, typically
with low coverage (about 60%). RG-6 type cables are also used in professional
video applications, carrying either baseband analog video signals or serial
digital (SDI) signals; in these applications, the center conductor is ordinarily
solid copper, the shielding is much heavier (typically aluminum foil/95% copper
braid), and tolerances are more tightly controlled, to improve impedance stability.RG-6
cables typically are fitted with some type of connector at each end; in CATV
distribution applications, these are typically F connector style; in professional
baseband video, BNC connectors; and in consumer a/v applications other than
RF and CATV, RCA plugs.
THX is the trade name of a high-fidelity sound reproduction system for movie theaters, screening rooms, home theaters, computer speakers, gaming consoles, and car audio systems. THX was developed by Tomlinson Holman at George Lucas's company Lucasfilm in 1982 to ensure that the soundtrack for the third Star Wars film, Return of the Jedi, would be accurately reproduced in the best venues.The THX system is not a recording technology, and it does not specify a sound recording format; all sound formats, whether digital (Dolby Digital, SDDS) or analog (Dolby SR, Ultra-Stereo), can be "shown in THX." THX is mainly a quality assurance system. THX-certified theaters provide a high-quality, predictable playback environment to ensure that any film soundtrack mixed in THX will sound as near as possible to the intentions of the mixing engineer.