CHAPTER 2: SYSTEM DESCRIPTION
2-2
DigiVu
®
Series Multichannel MPEG-2/H.264 Encoder/Multiplexer with QAM &/or IP Output - Installation & Operation Manual
2.2.2 DigiVu
®
CD 3RU
This is very much the same as DigiVu with the addition of an
integrated channel dropping filter. This is a 3RU model with
up to 10 channels of SD MPEG-2 encoding or 5 channels of
HD/SD MPEG-2/H.264 where an existing cable TV channel
lineup requires that a channel be removed before inserting
the new QAM channel. The output is a single QAM. GbE
IP output is available but the number of encoded channels
is reduced for IP output, as one card slot is used for the IP
output card. This is a popular model in applications where up to 10SD/5HD channels of cost effective video are required in
commercial sites such as headends, MDUs, stadiums, hospitals and other health care facilities where in-house educational
channels are implemented.
Distinguishing Features:
•
3RU Chassis.
•
Integrated (optional) Channel Dropping Filter.
•
6 card slots for encoders or I/O cards. (Not all slots can be used for all card types)
•
Up to 10 integrated SD MPEG-2 encoded programs using dual encoder cards.
•
Up to 5 integrated SD/HD MPEG-2/H.264 encoded programs.
2.2.3 DigiVu
®
Mini 1RU
This is the Mini 1RU model with up to 4 channels of HD/SD
MPEG-2/H.264. The output is single QAM. GbE IP output is
available but the number of encoded channels is reduced for
IP output, as one card slot is used for the IP output IP card.
This is a popular model in applications where up to 4SD/2HD
channels of cost effective video are required in commercial sites such as headends, MDUs, stadiums, hospitals and other
health care facilities where in-house educational channels are implemented.
Distinguishing Features:
•
1RU Chassis.
•
2 card slots for encoders or I/O cards.
•
Up to 4 integrated SD MPEG-2 encoded programs using dual encoder cards.
•
Up to 2 integrated SD/HD MPEG-2/H.264 programs encoded.
2.3 The DigiVu
®
Encoder
DigiVu series products are headend or network-edge local content encoding devices for digital video networks. They encode
local baseband analog content into a digital format at the headend or within a property provisioned with digital only TVs, STBs
or DTAs where analog spectrum is not available or where digital content is needed in addition to analog content.
Target applications include:
•
Cost-effective encoding, multiplexing & transmission (QAM and/or GigE).
•
Headend application of digital simulcast or digital delivery of PEG.
•
Hub site specific programming.
•
Security or surveillance camera feeds (MDUs, retirement homes).
•
Text/character generator or local information channel (hotels, conference centers, gated communities).
•
Distribution of ‘in-house’ or private channels throughout a property (e.g., sports stadiums, network studios).
In addition to headend/hub applications, all deployments of digital signals in a modern cable TV system are presented with
challenges which did not exist in the former analog deployments. Specific challenges are faced when MDUs and institutions
within the cable plant require locally inserted content which must be received by the installed base of cable TV set top boxes
(STB). The DigiVu can be used in these properties to encode local analog video cameras, message boards, instructional
and advertising channels into HD/SD MPEG-2/H.264 streams. The resulting stream content may be inserted into a blank EIA
channel or may perform digital drop and insert into pre-existing clear QAM carriers or also perform Add/Drop Multiplexing
within a QAM channel. The flexible architecture of the product makes it an ideal candidate for any number of programs that a
headend, hub, MDU or similar property is likely to require.
Figure 2-2: 3RU DigiVu
®
CD
Figure 2-3: 1RU DigiVu
®
Mini
