Руководство Пользователя для Cisco DNCS System Release 2.8.1 3.8.1 4.3.1
GQAM Modulator for Content
The content GQAM modulator performs the same tasks that a QAM or an MQAM modulator performs: it takes the
data it receives and, if necessary, it encrypts the data before modulating it onto an RF carrier for distribution to
all DHCTs in a hub. Unlike the content QAM modulator, which can receive data from only one ASI MPEG source, a
content GQAM modulator can receive content from up to four ASI MPEG sources. A content GQAM modulator can
also send the modified data out to the hubs on up to 16 transport streams in contrast to the QAM modulator,
which can send data out on only one transport stream. In other words, you can use one GQAM modulator to
perform the work of 16 QAM modulators.
data it receives and, if necessary, it encrypts the data before modulating it onto an RF carrier for distribution to
all DHCTs in a hub. Unlike the content QAM modulator, which can receive data from only one ASI MPEG source, a
content GQAM modulator can receive content from up to four ASI MPEG sources. A content GQAM modulator can
also send the modified data out to the hubs on up to 16 transport streams in contrast to the QAM modulator,
which can send data out on only one transport stream. In other words, you can use one GQAM modulator to
perform the work of 16 QAM modulators.
The content GQAM can also receive data on a Gigabit Ethernet (GbE) input. Typically, GbE input is used to receive
data that provides VOD service.
data that provides VOD service.
What do you want to do?
on the GQAM modulator
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