Technicolor COM3000, Руководство интегратора, Страница: 12 / 102

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standards. IP systems require technicians proficient in IP switch configurations,
specifically multicast networks utilizing Internet Group Management Protocols (IGMP).
PSIP Program and System Information Protocol. Signals included in a digital TV signal that
instruct the TV to tune to a specific channel. For example an off-air channel may be
broadcast on UHF ch 38 but the station call letters are ch 7. PSIP data instructs the TV to
look for ch 7 on UHF38. PSIP data also includes current and future programming
information.
http://www.atscforum.org/
QAM20 Cards A board that installs in the upper left side of a COM400 Chassis. It converts the COM51 ’s
IP-packetized streams to QAM-modulated RF for distribution throughout a property. The
board provides up to 16 QAM channels and is software upgradeable in groups of two
QAMS for a maximum of 48 QAM channels.
Satellite
Distribution
Network This network consists of the dish, LNB and associated equipment necessary to provide
KA/KU band satellite signals to the COM3000. The COM3000 requires a SWiM 8 signal to
each card. It is assumed that installation technicians have adequate expertise and proper
test equipment required to install the distribution system to AT&T / DIRECTV
specifications.
SD Standard Definition
SWiM Switch Single Wire Multi-switch – A AT&T / DIRECTV module used for distribution of satellite
signals. Available models support 8,16, of 32 tuners.
SWQAM2 The SWQAM2 is a software key that will enable 2 QAM channels per key on a QAM20
card. By pruchasing 3 SWQAM2 keys a QAM20 can be expanded to 12 QAM channels.
System
Integrator The person or company that performs the onsite installation.
System
Operator The company or organization that typically holds the “right of entry” and is responsible
for installation and all onsite support on a daily basis.
Transcryption The process by which the COM 1000 system converts content streaming from AT&T /
DIRECTV
’s conditional access system to Pro:Idiom encrypted video.