Call Us +44 0207 378 1400

clarity and precision

Glossary

Search for glossary terms (regular expression allowed)
Term Main definition
PS Picosecond

One trillionth of a second.

Hits - 1150
PS2

PS2- A 6 pin mini din connector replaces old keyboard connections.

Hits - 1119
PSACR Power-sum attenuation-to-crosstalk ratio

The ratio of attenuation to power-sum near-end crosstalk; while not a requirement of ANSI/TIA-568-C.2, it is figure of merit used by all manufacturers to denote the signal to power-sum noise ratio in the near end.

Hits - 1521
PSAFEXT Power-sum alien far-end crosstalk

The power-sum measurement of alien crosstalk in the far end (away from the transmitter); the result from this test is used with the attenuation to calculate power-sum alien attenuation-to-crosstalk ratio (far end) (PSAACRF), a requirement of ANSI/TIA-568-C.2 for Category 6A cables.

Hits - 1637
PSANEXT Power-sum alien near-end crosstalk

The power-sum measurement of alien crosstalk in the near end (at the transmitter); a newly established requirement in ANSI/TIA-568-C.2 for Category 6A cables.

Hits - 1625
PSTN Master

FULL Master - For a direct line from the telephone company and not via the office telephone exchange, PABX.

Hits - 1186
PSTN Public switched telephone network

The basic phone service provided by the phone company. See also plain old telephone service.

Hits - 1088
Public data network
A network established and operated for the specific purpose of providing data transmission services to the public. See also public switched network.
Hits - 1173
Public switched network
A network provided by a common carrier that provides circuit switching between public users, such as the public telephone network, telex, Sprint
Hits - 1417
Puck
In fiber optics, metal disc that holds a connector in the proper position against an abrasive for polishing the connector endface.
Hits - 1198
Pull strength
The pulling force that can be applied to a cable without damaging a cable or affecting the specified characteristics of the cable. Also called pull tension.
Hits - 1155
Pull string
A string that is tied to a cable and is used to pull cables through conduits or over racks. Similar to fish tape.
Hits - 1146
Pulse
A current or voltage that changes abruptly from one value to another and back to the original value in a finite length of time.
Hits - 2048
Pulse dispersion
The dispersion of pulses as they travel along an optical fiber.
Hits - 1179
Pulse spreading
The dispersion of an optical signal with time as it propagates through an optical fiber.
Hits - 1382