Router
A router is the device help facilitating the exchange of packets among LAN or
WAN networks. A router is often a part of the network switch.
RS232 (also known as RS-232)
This is the communication standard developed by EIA (Electronic Industries
Association) for regulating the interface between data communication and
data processing devices. In IP Surveillance, RS232 is commonly used in
giving instructions that control the movement of PTZ camera.
RTP
RTP is the abbreviation of Real-time Transport Protocol. This protocol
provides the real-time end-to-end delivery, including audio and video
signals. The provided services range from sequence numbering, time
stamping, and payload type identification, standardizing the packet format
for easy synchronization and Internet delivery.
RTSP
RTSP is the abbreviation of Real Time Streaming Protocol. This protocol
provides the control of delivered multimedia streams. The services range
from recording, possible device control, and absolute positioning within the
media stream.
RAID (Redundant Array of Independent Disk)
RAID means redundant array of independent disks. This device allows the
storage of the same data in different places on multiple hard disks.
RAM (Random Access Memory)
RAM represents Random Access Memory. RAM is the place in computer to
keep data of current use, operating system, and application programs. The
advantage of RAM is that it allows users to have quick access to those data.
Resolution
Resolution is a measure of picture clarity and sharpness. The presentation of
resolution is showed by number of pixels. There is a direct ration between
resolution and number of pixels.
