NV5128 Multi-Format Router • User’s Guide 91
8. Glossary
Glossary
RAM Random Access Memory
RJ45, RJ-45 Registered Jack, type 45 as defined in the United States Code of Federal Regulations. A common 8-
pin modular plug and/or jack used in the telecommunications and broadcast industry to transport
Ethernet or machine control signals.
RS-422 Sometimes referred to as RS-422 or TIA/RS-422-B and other similar variations. A bidirectional
communications standard. The use of this term implies that NVISION intends to refer to the latest
standard in effect at the time the product was developed.
RU Rack Units. A standard measure or size for frames (1.75 inches).
SD SD and SDI are equivalent terms in NVISION documents. An SD signal is a standard definition,
serial digital interface video format that conforms to the SMPTE 259M standard.
Source/Desti-
nation
The term “source device” is used interchangeably with “source” and the term “destination device”
is used interchangeably with “destination.” A source is a device that is connected to one or more
input ports. A destination is a device that is connected to one or more output ports. An example of
such a device would be a monitor.
A device can be both a source and destination. An example of such a device is a VTR.
SWB (Super Wide Band). A term originated by NVISION that refers to the ability of a router to pass a
wide range of digital bit rates and formats. NVISION’s SWB supports data rates from about 15Mb/
s to 1.5GB/s.
Input signals must be nominally 800mV p-p and bi-level or tri-level in nature. The NV5128 video
routers bypasses re-clocking for non-video rates. Rates that are re-clocked include common SD
data rates of 143 and 270 Mb/s (SMPTE 259M-A and -C, but not B or D) and HD data rates at
nominally 1.485Gb/s. SWB accepts SD at 177 Mb/s, but does not reclock it.
Sync AES,
Async AES
The term “Async AES” refers to an asynchronous AES-compliant audio signal, whereas “Sync
AES” refers to a synchronous AES signal with a data rate of 48 samples per second.
System admin-
istrator
The system administrator is the person responsible for installing, configuring, and maintaining a
router control system.
Time Code A linear time code signal complying with SMPTE 12M or the corresponding EBU standard.
UniConfig A Windows-based application (Universal Configuration) used to configure NVISION products
using a serial or Ethernet connection. UniConfig uses an easy-to-learn GUI (Graphical User Inter-
face) to simplify the configuration process.
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