Installation Guide

Glossary
30 4035812 Rev B
MPEG-2
Intended for higher quality video-on-demand applications and runs at data rates between 4
and 9 Mbps.
MPTS
Multi-program transport stream.
N
Nm
Newton meter. A measure of torque defined by the application of one Newton of force on a
lever at a point on the lever that is one meter from the pivot point. (1 Nm = 0.737561 ft-lb)
node
Any device, such as a DSAN unit, that is connected to a network, or a branching or exchange
point.
NTSC
National Television Standards Committee. A committee that determines video signal
standards for television displays in the United States, Canada, Mexico, and Japan, as well as
other Latin American and Asian countries. The NTSC standard calls for fixed-resolution,
interlaced displays that are updated 30 times per second with a resolution of 525 lines.
O
OID
object identifier.
P
PID
packet/program identifier. A number assigned to MPEG transport packets to identify the
contents of the data and the information stream to which they belong. The 13-bit PID number
is assigned in the MPEG-2 transport packet headers. All packets from the same stream have
the same PID number.
provisioning
The process of preparing a device or service so that it operates properly and its control system
recognizes it.
PWR
power.
Q
QAM
quadrature amplitude modulation. An amplitude and phase modulation technique for
representing digital information and transmitting that data with minimal bandwidth. Both