Key Features - ATX DigiVu Installation & Operation Manual

2.4

Key Features

2.4.1 Flexible Digital Program Insertion
Designed for deployment in both RF and IP environments, the DigiVu system is capable of inserting digital programs into an
EIA RF channel where there is no pre-existing carrier or it may be used with an integrated channel deletion filter (DigiVu CD
Model) and any EIA channel may be effectively removed making way for a new QAM created by the DigiVu. The integrated
QAM modulator may be set to any frequency between 54 and 870 MHz (extended range 15 - 975 MHz with some restrictions)
in 1 kHz steps and fully supports STD, IRC and HRC channel plans. For IP distribution/insertion installations, Ethernet transport
streams may be created as either unicast or multicast, MPTS/SPTS with any address within the valid IPv4 address and port
range.
2.4.2 Support for SD/HD MPEG-2/H.264 Encoding
The DigiVu and DigiVu Mini platforms may be ordered with or field upgraded with card slot plug-in SD or HD video encoders.
Each single channel HD plug-in card may be configured for SD or HD and can encode MPEG-2 or H.264 profiles. If SD
programs only will need to be encoded, there are affordable single and dual channel SD encoder cards available. Both SD
and HD programs may be mixed on any output multiplex (IP or QAM) for best bandwidth efficiency. Up to 2 HD programs may
be multiplexed to a QAM in the DigiVu Mini platform and up to 5 HD programs on the DigiVu platform. For platforms with IP
outputs, DigiVu Mini may output 1 HD program while the DigiVu may output up to 4 HD programs.
2.4.3 Gigabit Ethernet Output
The DigiVu systems may be provisioned with an optional gigabit Ethernet output card. The Ethernet card has 2 electrical
Ethernet ports (RJ45) as well as 2 SFP ports into which may be installed multimode fiber optic SFPs for reliable trunk
connection to distribution switches. A variety of SFP interface types such as single mode and multimode fiber are supported
and may be installed as required by system architecture. The Ethernet output may be provisioned to be the sole output of the
unit or simultaneous RF and Ethernet are supported. IP output streams may be provisioned with VLAN tagging and Pro-MPEG
FEC. If configured with IP output only(RF Disabled), then the IP programs may be all SPTS streams.
2.4.4 Integrated Add/Drop Multiplexing
Both DigiVu platforms have integral transport stream multiplexers which creates a new QAM or IP multiplex or alternately
may be used in an add/drop application along with an optional plug-in demodulator card to insert programs into an existing
QAM, clear or encrypted, replacing only the programs that are desired. If the program that is dropped was encrypted, the
replacement program stream will be in the clear. The add/drop application utilizes the QAM demodulator to analyze the MPEG
stream and selectively insert or "drop and insert" local programs in a flexible manner.
2.4.5 Remote Monitoring Via SNMP
The product fully supports Simple Network Management Protocol (SNMP) which allows the monitoring of the built in alarm
points by a remote SNMP management console. The available DigiVu MIB may be compiled into the remote Management
Console to provide notification of the triggering of alarms either across a private network or the internet if available. Upon
triggering of a predefined alarm, a trap is automatically sent by the DigiVu equipment to a listening SNMP management
console.
2.4.6 Flexible Transport Stream Re-Multiplexing
Flexibility is provided in configuring the re-multiplexed transport stream in an add/drop application. The inserted program may
be assigned any valid PID or MPEG program number and the encoder may be set to any of a wide range of valid CBR video
and audio encoding rates. A built in MPEG-2 stream analyzer (demodulator card required for this feature) for incoming MPEG
programs assists in making the correct selections for replacing programs easy and intuitive. MPEG tables PAT and PMT along
with all PID values are automatically generated to ensure that downstream STB can reliably tune the inserted multiplex and
minimum craft experience is required to implement a system. Dynamic PID monitoring avoids outages due to program table
updates.
2.4.7 Scalable Architecture is Field Upgradable
Encoder cards which accommodate one or two channels of SD MPEG-2 or one channel of HD/SD MPEG-2/H.264 encoding
may be installed as required so the system may be grown as needs grow. Hot swappable cards make upgrading the DigiVu
encoder capability faster while keeping outages to a minimum. The RF Demodulator card may be installed in any available
slot as future requirements dictate even if the initial installation did not originally include it. IP output capabilities may also be
added when required by installing a Gigabit Ethernet card in slots 2 (DigiVu Mini) or 5 (DigiVu and DigiVu CD).
2.4.8 Mass Deployment and Backup with Configuration Export
The DigiVu platforms allow the operator to export the programmed configuration as a file. The exported file may be used for
backup and archive purposes or to allow fast and easy deployment of multiple DigiVu units with similar configuration thus
DigiVu Series Multichannel MPEG-2/H.264 Encoder/Multiplexer with QAM &/or IP Output - Installation & Operation Manual
®
CHAPTER 2: SYSTEM DESCRIPTION
2-3