This document and the information contained in
it is the property of TANDBERG Television Ltd
and may be the subject of patents pending and
granted. It must not be used for commercial
purposes nor copied, disclosed, reproduced,
stored in a retrieval system or transmitted in
any form or by any means (electronic,
mechanical, photocopying, recording or
otherwise), whether in whole or in part, without
TANDBERG Television’s prior written agreement.
Table 2.1: Types of Connector................................................................................................9
Table 2.2: Fuse Type and Rating..........................................................................................10
Table 5.1: Recommended Values for the Different Video Parameters.................................19
EN5990 Encoder for MPEG-4 Part 10
1 Who Should Use This User Guide?
This User Guide is written for operators/users of the EN5990 Encoder to assist in
installation and operation. It is not intended to be a detailed source of information.
This can be found in the Reference Guide companion document, which is issued
1.1 What Equipment is Covered by This User Guide?
on CD.
WARNING
Do not remove the covers of this equipment. Hazardous voltages are
present within this equipment and may be exposed if the covers are
removed. Only TANDBERG Television trained and approved service
engineers are permitted to service this equipment.
CAUTION
Unauthorised maintenance or the use of non-approved replacements
may affect the equipment specification and invalidate any warranties.
EN5990/BAS/48V EN5990/BAS Encoder with -48 Vdc input
H.264/AVC HD video encoding for low
bitrate applications.
1.2 Hardware and Software Options
See Table 1.2 for a list of hardware options and Table 1.3 for a list of software
options available with the Encoder. Detailed information is in the Reference Guide.
Table 1.2: Hardware Options
Marketing Code Description
EN5900/HWO/IPTS IP Network Interface Card that enables transport stream
EN5900/HWO/IPTSDUAL Replacement for previous option card that has 2 se par ate
5
output over an IP/Ethernet network. Single 10/100BaseT
output. Has been superseded by the IPTSDUAL card.
IP/Ethernet ports and can interface to GigE network.
EN5990 Encoder for MPEG-4 Part 10
Table 1.3: Software Options
Marketing Code Description
EN5900/SWO/AC3 Allows the audio input to be encoded using the Dolby AC-3
EN5900/SWO/BISS Allows the output transport stream to be scrambled using the Basic
EN5900/SWO/MPEG2/AAC Allows the audio input to be encoded using MPEG-2 AAC LC
EN5900/SWO/MPEG4/HEAAC Allows the audio input to be encoded using MPEG-4 HE-AAC
EN5900/SWO/NR Allows the pre-processor to enable a noise filter on the incoming
EN5900/SWO/RAS Enables Remote Authorization System which is a propri etary public-
EN5900/SWO/REFLEX Allows the encoder to be a part of an reflex multiplexor group.
encoder.
Interoperable Scrambling System (BISS) with a operator defined
key.
profile, encapsulated with ADTS.
profile, encapsulated with LAOS/LAT M.
video source.
key encryption system to prevent unauthorize d v iewing of a TV
program.
1.3 Summary of HD MPEG-4 Encoder
The MPEG-4 HD Encoder is a professional-grade Encoder for highly efficient
H.264/AVC video encoding and MPEG-4 audio encoding. It delivers unsurpassed
compression performance in real-time for broadcast applications.
The product is based on technology and knowledge gained over ten years and six
generations of MPEG video and audio developments. The dedicated hardware
and software implementation gives consistently the very best real-time quality at
the very lowest possible bitrates.
1.3.1 Video Encoder
1.3.2 Audio Encoder
6
The Encoder compresses a high definition video signal into an encoded bitstream
for broadcast transmission in accordance with the ISO/IEC-14496-10 standard,
also known as H.264/AVC.
Pre-processing features include noise-reduction filters, video resizing and deinterlacing. More details are given in Section 5.
The Encoder can handle multiple audio services to accompany the video
component, including:
!The ability to pass thru pre-compressed Dolby Digital bitstreams with the
option of glitch suppression.
EN5990 Encoder for MPEG-4 Part 10
!Compression of stereo and 5.1 audio services using algorithms such as
MPEG-2 AAC-LC, MPEG-4 HE-AAC, Dolby AC-3
operator can define the language descriptor associated with each service.
1.3.3 Encapsulation Methods
The video and audio bitstreams are multiplexed into a compliant MPEG-2 transport
stream enabling the transmission over existing MPEG broadcast infrastructure (or
optionally transport over IP).
2 Installing the Equipment
2.1 Introduction
For best performance and reliability, follow the instructions for site requirements
2.2 Operating Voltage
and installation in the Reference Guide and only use installation accessories
recommended by the manufacturers.
CAUTION
This product should be operated only from the type of power source
indicated on the marking label. If you are not sure of the type of power
supply to your business, consult a qualified electrical engineer or your
local power company.
NOTE
Refer to the Reference Guide for details of the colour codes used
on the mains leads.
®
or MPEG layer II. The
See Table 2.2 for fuse information and also the Reference Guide for a full power
supply specification.
A.C. Models
A.C. models are fitted with a wide-ranging power supply. It is suitable for supply
voltages of 100-120 Vac -10%/+6% or 220-240 Vac -10%/+6% at 50/60 Hz
nominal.
-48 Vdc Models
Model EN5990/BAS/48V uses a –48 Vdc power supply.
7
EN5990 Encoder for MPEG-4 Part 10
2.3 Power Cable and Earthing
Check that the power cable is suitable for the country in which the Encoder is to be
used.
WARNINGS
1. The Technical Earth is not a Protective earth for electric shock
protection.
2. This unit must be correctly earthed through the moulded plug
supplied. If the local mains supply does not have an earth
conductor do not connect the unit. Contact Customer Services
for advice.
3. Before connecting the unit to the supply, check the supply
requirements in Annex B of the Reference Guide.
2.4 Power Supply Stand-by Switch
This switch puts the Encoder into stand-by mode. It powers down the supply rails
of the display and internal circuits within the unit. The switch type avoids accidental
powering-down of the Encoder. For normal use, using a screwdriver, ensure that
the I is always at the top (see Figure 2.1).
8
WARNING
This is NOT a mains switch and will not isolate the Encoder from the
power supply. Disconnect the power cord to isolate the unit.
Figure 2.1: Stand-by Switch
On position
Stand-by position
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