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The Network Services Gateway™ 9000 is a high density edgeQAM system, capable of scaling to 144 QAM RF
outputs per unit. The system serves as a highly integrated digital video gateway, capable of
multiplexing on-demand
content streamed over an IP network. In addition to providing unparalleled output density, the NSG
9000 also supports a variety of applications including video-on-demand (VOD), switched digital broadcast,
broadcast television and modular CMTS.
 
The NSG 9000 is housed in a modular, 2-RU
chassis, and performs PID filtering, multiplexing,
scrambling, QAM modulation and RF upconversion
for up to 144 MPEG transport streams simultaneously.
The NSG accepts digital MPEG input through its
gigabit Ethernet (GbE) ports, then directs the
multimedia to different QAMs and up-converters
to create the outgoing transport streams as QAM-RF
output signals. The NSG 9000 is also designed
to meet the DOCSIS 3.0 Modular Cable Modem
Termination System (M-CMTS) requirements for
downstream data transmission.
In order to maximize
scalability and flexibility, the
NSG 9000 is designed as a completely modular
system. The chassis is fitted with a passive backplane,
while all the processing and modulation functions
are performed on retrievable modules. The chassis
has nine QAM RF module slots; each module has
two QAM RF ports, and each port is capable of
supporting up to four adjacent QAM channels. The
system can host two AC and/or DC power supplies,
which can be redundant to each other.
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