Abbreviation for vestigial sideband. See vestigial sideband transmission.

Virtual Service Operations

Video Service Provider

Abbreviation for voltage standing wave ratio.

VDSL Transmission Unit, Intermediate

VDSL2 Transceiver Unit at the Optical Network Unit

1. VDSL2 Transceiver Unit at the Remote Site,
2. VDSL Transmission Unit, Remove.

Abbreviation for volume unit.

1. In communications security, see susceptibility.
2. The extent to which a system will degrade when subjected to a specified set of environmental conditions.
3. In communications interference, see susceptibility threshold.
4. In cryptology, the point of weakness within the encrypted system where threats can occur, such as equipment, facilities, hardware, software, operating systems and personnel. [After X9.49]
5. [A]… (Read More →)

1. The systematic examination of a system to identify those critical infrastructures or related components that may be at risk from an attack and the determination of appropriate procedures that can be implemented to reduce that risk.
2. [The] systematic examination of an information system (IS) or product to determine the adequacy of security measures. identify security deficiencies, provide data… (Read More →)