Kht Report Auxilliary

7/25/2019 Kht Report Auxilliary

1/10


2/10


3/10

Master Station or Base Station These are units that can control the system,i.e., initiate a call with any of the stations and make announcements over the wholesystem.

Sub-station Units that are capable of only initiating a call with a Master Stationbut not

capable of initiating calls with any other stations (sometimes called slave units).

Door Station ike sub!stations, these units are only capable of initiating a call toa Master Station. They are typically weather!proof.


4/10

Wireless intercoms"or installations where it is not desirable or possible to run wires to support an intercomsystem, wireless intercom systems are available. There are two ma#or bene$ts of awireless

intercom system over the traditional wired intercom. The $rst is that installation is mucheasier since no wires have to be run between intercom units. The second is that you caneasily move the units at any time. %ith that convenience and ease of installation comesarisk of interferenceinterferencefrom other wireless and electrical devices.

Category 5 cable, commonly referred to as cat &, is a twisted pair cable for carryingsignals.

This type of cable is used in structured cabling for computer networks such as 'thernet.Thecable standard provides performance of up to M*+ and is suitable for -S'!T,

-S'!T ("ast 'thernet), and -S'!T (/igabit 'thernet). 0at & is also used tocarry

CABL !SD "# "#$%C&MCategory ' cable commonly no*n as Cat ' or station *ire and less commonlyknown as +, or +oice-grade (as or e.am/le in 011Base+,) is an unshieldedt*isted /air

(UT1) cable used in telephone wiring. 2t is part of a family of copper cabling standards de$ned#ointly by the 'lectronic 2ndustries -lliance and the Telecommunications 2ndustry -ssociationand de$ned in T2-3'2-!&45!.-lthough designed to reliably carry data up to Mbit3s, moderndata networks run at much higher speeds, and 0at&e or 0at4 is now used for all newinstallations ! and many large institutions re6uire any repairs or additions to e7isting buildingsthat currently use 0at8 to be upgraded to 0at&e.0at 8 was widely used in computer networking in the early 99s for -S'!T'thernet (and to a lesser e7tent for ase:/ 'thernet, token ring and -S'!T;),

but from the early


5/10

Category 2The mainstream adoption of /igabit 'thernet (-S'!T) re6uired new industry!standard cables capable of transmitting at a higher fre6uency of


6/10

Closed-circuit tele3ision (CC$+) also known as 3ideo sur3eillance is the use ofvideocameras to transmit a signal to a speci$c place, on a limited set of monitors. 2t di?ersfrombroadcast television in that the signal is not openly transmitted, though it may employ

pointto point (1


7/10

%,-2 is cable television (0-T:) distribution coa7, used to route cable television signals to

and within homes, and @/!4 type cables have become the standard for 0-T:, mostlyreplacing the smaller @/!&9, in recent years. 0-T: distribution coa7 typically has acopper!clad steel (00S) center conductor and a combination aluminum foil3aluminumbraid shield, typically with low coverage (about 4A). @/!4 type cables are also used inprofessional video applications, carrying either base band analog video signals or serialdigital interface (SB2) signalsC in these applications, the center conductor is ordinarilysolid copper, the shielding is much heavier (typically aluminum foil39&A copper braid),

and tolerances are more tightly controlled, to improve impedancestability.


8/10

- digital 3ideo recorder (D+%) sometimes referred to by the merchandising term/ersonal3ideo recorder (+%) is a consumer electronics device or application software thatrecordsvideo in a digital format to a disk drive, US Dash drive, SB memory card, SSB or other

localor networked mass storage device. The term includes set!top bo7es (ST) with direct todiskrecording facility, portable media players (1M1) with recording, T: gateways with networkand local recordings, recorders (1M@) as camcorders that record onto Secure Bigitalmemorycards and software for personal computers which enables video capture and playback to

andfrom a hard disk drive.

Wi-6i (or Wi6i) is a local area wireless computer networking technology that allowselectronic

devices to connect to the network, mainly using the


9/10

$he name 7Wi-6i7The term Wi-Fi, commercially used at least as early as August 1999,[16] was coined bybrandconsulting $rm 2nterbrand 0orporation. The %i!"i -lliance had hired 2nterbrand todetermine a name that was Ea little catchier than G2''' 5


10/10

Coa.ial cable or coa. is a type of cable that has an inner conductor surroundedby a tubular insulating layer, surrounded by a tubular conducting shield. Manycoa7ial cables also have an insulating outer sheath or #acket. The term coa7ialcomes from the inner conductor and the outer shield sharing a geometric a7is.0oa7ial cable was invented by 'nglish engineer and mathematician =liver*eaviside, who patented the design in 55. 0oa7ial cable di?ers from othershielded cable used for carrying lower fre6uency signals, in that the dimensions of

the cable are controlled to give a precise, constant conductor spacing, which isneeded for it to function eHciently as a transmission line.

RG-59 flexible coaxial cable composed of:

A. Outer plastic sheath

B. Woven copper shield

C. Inner dielectric insulator

D. Copper core

RG59 AND RG6

Cable tele3ision is a system of delivering television programming to payingsubscribers via radio fre6uency (@") signals transmitted through coa7ial cables orlight pulses through $ber optic cables. This contrasts with broadcast television, inwhich the television signal is transmitted over the air by radio waves and received bya television antenna attached to the television. "M radio programming, high!speed2nternet, telephone service, and similar nontelevision services may also be provided

through these cables.- cable channel (sometimes known as a cable network) is a television networkavailable via cable television. %hen available through satellite television, includingdirect broadcast satellite providers such as BirecT:, Bish Fetwork and Sky, as wellas via 21T:, it is referred to as a satellite channel.

Documents

Kht Report Auxilliary