OG-X-FR openGear Frame v1.0r1 43 www.aja.com
Chapter 11 – Glossary
The following terms are used throughout this guide:
Active image — the portion of the video picture area (production aperture) that
is being utilized for output content. Active image excludes letterbox bars and
pillarbox bars.
Card — openGear terminal devices within openGear frames, including all
components and switches.
CBR — constant bit rate.
CDN — content distribution network.
DashBoard — the DashBoard Control System.
DF — Differentiated Services.
DTVCC captions — CEA-708 captions.
Frame — the OG-X-FR frame that houses the OG-X-FR.
HLS — HTTP Live streaming.
HTTP — Direct Hypertext Transfer Protocol.
MIB — management information base.
Network Controller Card — the MFC-OG3-N and any available options unless
otherwise noted.
NTSC captions — the CEA-608-D: Line 21 Data Services captions.
openGear frame — refers to the OG-X-FR frames unless otherwise noted.
PAL — PAL-B and PAL-G unless otherwise stated.
PCR — program clock reference.
PID — packet identifier.
Production aperture — the image lattice that represents the maximum possible
image extent in a given standard (e.g. the full size of all active pixels and active
lines). For example, the 1080i production aperture would be 1920x1080.
RTMP — Real Time Messaging Protocol.
Stream — a transport stream present at the port.
System— the mix of interconnected production and terminal equipment in your
environment.
TCP — Transmission Control Protocol.
TOS — Type of Service.
TPG — Test Packet Generator.
TTL — Time To Live.
UDP — User Datagram Protocol.
User — the person who uses the OG-X-FR.
