Nokia of America Corporation BBTRX-14 Benutzerhandbuch

Service provider

Customer who purchases switching and Site equipment from system vendors, which, in turn, is
provided to end-user subscribers through resellers and distribution channels.

SFP (Small Form-Factor Pluggable)

A compact, hot-pluggable transceiver that interfaces a network device motherboard to a
fiber-optic or copper networking cable to support telecommunication and data communications.

Shield

A housing, screen, sheath, or cover that substantially reduces the coupling of electric, magnetic, or
electromagnetic fields into or out of circuits or transmission lines.

Short-term

No more than 96 consecutive hours or 15 days per year.

Single-phase

A circuit in which there is only one sinusoidal voltage variation.

Site

An installation that houses the equipment needed to set up and complete calls on a cellular
telephone.

Site preparation

To perform the requirements necessary at the site before installation can begin.

Stranded

Wires twisted together to form a strong flexible cable.

Surge protector

Protective device used to limit surge voltages by discharging or bypassing any unwanted surge
current that may enter a building or equipment.

Sweep

To vary the frequency of a signal over a whole band as a means of checking the response of
equipment under test.

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A four-wire voice and data trunking facility that carries 24 duplex channels over 56-kbps time
slots.

THHN (Thermoplastic high-heat resistant nylon-coated)

Three-phase

An alternating current supply with three sinusoidal voltages differing in phase by 120°.

THWN (Thermoplastic heat and water resistant nylon-coated)

Glossary

December 2013

Alcatel-Lucent – Proprietary

Use pursuant to applicable agreements

GL-9