Selenio
TM
VMG-14+ Hardware Setup Guide
88
Gen2 Release 1.4.0
P
PEM—Power
Entry
Module
PSU—Power
Supply
Unit
R
RADIUS—Remote
Authentication
Dial
In
User
Service
A networking protocol that provides centralized AAA services.
Redundancy
A method of providing a backup for critical system components to ensure uninterruptible service in the
event of a failure. High availability and reliability.
RF—Radio
Frequency
Television signals are modulated onto RF signals and are then demodulated by the television tuner.
RTP—Real
Time
Protocol
RTP provides services such as payload type identification, sequence numbering, time-stamping, and
delivery monitoring to real-time applications.
RTM—Rear
Transition
Module
RU—Rack
Unit
A common increment of equipment space height. The height of 1 RU is 1.75 inches.
S
SCTE—Society
of
Cable
Telecommunications
Engineers
An organization that develops training for cable television installers and engineers and standards for the
cable industry.
SD—Standard
Definition
Television systems that have a resolution that meets standards but not considered either enhanced
definition or high definition.
SFP—Small
Form
Factor
Pluggable
An optical interface that is used in network switches for Fibre Channel, Gigabit Ethernet and InfiniBand.
SCM—Shelf
Control
Manager
Manager of the chassis population and infrastructure.
SPTS—Single
Program
Transport
Stream.
A transport stream that contains only one program.
Status
Bar
Strip located at the bottom of an application window, which displays system status information.