DIRECTV Set-Top Box Information for the Installer
DIRECTV, Inc.
March 5, 2008
Version 2.2
Page 42 of 42
DTV-MD-0058
9 Appendix: Acronyms
Term
Definition
APG
Advanced Program Guide. DIRECTV’s new generation of the electronic
program guide.
CAM
Conditial Access Module. Also referred to as the “access card” or “smart card”.
A removable, electronic subassembly providing conditional access control of
the subscriber terminal. The CA system equipment (smart card) needed in the
Integrated Receiver Decoder to control a subscriber's service channel
authorization and decryption.
DBS
Direct broadcast satellite. A satellite operating in accordance with International
Telecommunications Union and Federal Communications Commission
regulations for high power broadcasting from space to individual consumers.
DIRECTV
®
Trademarked name of the DIRECTV Group.
DVI
Digital Visual Interface.
DVR
Digital Video Recorder.
HDCP
High-bandwidth Digital Content Protection.
IPPV
Impulse Pay Per View. Movie purchases placed using the on-screen displays.
IR
Infrared.
IRD
Integrated Receiver Decoder.
LHCP
Left Hand Circular Polarization.
LNB
Low Noise Block down converter.
NTSC
National Television Systems Committee.
ODU
Outdoor Unit.
OPPV
Order-Ahead Pay Per View. Movie purchases placed by calling a customer
service representative rather than using the on-screen displays. Necessary to
purchase movies when the subscriber does not connect the phone to the IRD.
OSD On-Screen
Display.
PCM
Pulse Code Modulation.
PPV
Pay Per View.
RF Radio
Frequency.
RHCP
Right Hand Circular Polarization.
RID Receiver
Identification.
S/P DIF
Sony/Phillips Digital Interface. Commonly used as an optical Dolby Digital
connector.
Smart card
See CAM.
STB Set-top
box.
UTC
Universal Time Coordinate.