| F |
|
|
|
| F |
|
Frequency |
|
| Feeder Cable |
|
In a CATV system, the transmission cable from the head end(signal
pickup)to the trunk amplifier. Also called a trunk cable. |
|
| Feed-through |
|
A connector or terminal block, usually having double-ended
terminals which permit simple distribution and bussing of electrical
circuits. Also used to describe a bushing in a wall or
bulkhead separating compartment at different pressure levels,
with terminations on both sides. |
|
FEP |
|
Fluorinated ethylene-propylene. A thermoplastic material with
good electrical insulating properties and chemical and heat
resistance. |
|
| Ferrule |
|
A short tube. Used to make solderless connections to shielded
or coxial cable
(e.g.as in crimping). |
|
| Fiber |
|
A signle, separate optical transmission element characterized
by core and cladding. |
|
| Field |
|
An area through which electric and/or magnetic lines of force
pass. |
|
| Fillers |
|
Nonconducting components cabled with the insulated conductors
or optical fibers to impart roundness, flexibility, tensile
strength, or a combination of all three, to the cable. |
|
| Flange |
|
A projection extending from, or around the periphery of, a
connector and provided with holes to permit mounting the connector
to a panel, or to another mating connector half. |
|
| Flexibility |
|
The ability of a cable to bend in a short radius(also see
limpness). |
|
| FM |
|
Frequency modulation |
|
| Foam Polyethylene |
|
See cellular polyethylene. |
|
| Frequency |
|
The number of times a periodic action occurs in one second.
Measured in Hertz. |
|
| Frequency Modulation(fm) |
|
A scheme for modulating a carrier frequency in which the amplitude
remains constant but the carrier frequency is displaced in frequency
proportionally to the amplitude of the
modulating signal. An fm broadcast is practically immune to
atmospheric and man-made interference. |
|
Front Mounted
(front mounting) |
|
A connector is front mounted when it is attached to the outside
or mating side of a panel. A front mounted connector can only
be installed or removed from the outside of the equipment. |
|
