Terms and Abbreviations: P
P
p
progressive
P2P
peer-to-peer
PA
power amplifier
PAFF
picture-adaptive field/frame coding
PAL
phase alternating line
PAS
priority access service
PAT
1) program allocation table
2) program association table
PBX
private branch exchange
PCIe
PCI Express
PCM
pulse code modulation
PCMCIA
Personal Computer Memory Card International Association
PCO
private cable operator
PCR
1) program clock reference
2) production control room
PDH
Plesiochronous Digital Hierarchy
PDP
plasma display panel
PES
packetized elementary stream
P-frames
predicted frames
PID
packet ID
PIM
Protocol Independent Multicast
PIP
picture-in-picture
PKI
public key infrastructure
PMCP
Programming Metadata Communications Protocol, specified in ATSC document A/76
PMR
perpendicular magnetic recording
PMT
program map table
PON
passive optical network
POP
point of presence
POP3
Post Office Protocol version 3
POTS
plain old telephone service
PPM
peak program meter
PPTP
Point-to-Point Tunneling Protocol
PPV
pay per view
PSA
public service announcement
PsF
progressive segmented frame
PSI
- program specific information
- Phantom Source Indicator
psi
pounds per square inch
PSIP
Program and System Information Protocol
PSNR peak SNR
PSTM
public switched telephone network
PSU
power supply unit
PTS
presentation time stamp
PTT
push to talk
PTZ
pan, tilt and zoom (cameras)
PVR
personal video recorder
