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Wegener 4422 User manual

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TECHNOLOGY PARK / JOHNS CREEK
11350 TECHNOLOGY CIRCLE
DULUTH, GEORGIA 30097-1502
(770) 814-4000 FAX (770) 623-0698
Data, drawings, and other material
contained herein are proprietary to
Wegener Communications, Inc., and
may not be reproduced or duplicated in
any form without the prior permission
of Wegener Communications, Inc.
When ordering parts from Wegener
Communications, Inc., be sure to include
the equipment model number, equipment
serial number, and a description of the
part.
In all correspondence with Wegener
Communications, Inc., regarding this
publication, please refer to UTY4422-002B.
Note: Features of the product described
herein are covered by U.S. Patent #
4,985,895.
First Edition: February 2000
Revised:
A
ugust
2
00
2
Instruction Manual
UNITY4422™
MPEG VIDEO DECODER
with
DVB-ASI INPUT CARD
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CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
As this unit is intended to interface with other electrical/electronic systems, proper
engineering practices must be adhered to during installation and check-out.
All AC power and ground must be installed in accordance with National Electric
Code Standards as to conductor size and limitations (see NFPA 70, articles 200-
280, as amended, if required), and lightning protection must be provided.
All RF interconnections must be properly shielded to prevent ingression or
egression of potential interfering sources to existing services.
Any damage to this unit caused by improper wiring/interconnections will void any
warranty extended.
All Wegener Communications products are warranted against defective materials and workmanship for
a period of one year after shipment to customer. Wegener Communications' obligation under this
warranty is limited to repairing or, at Wegener Communications' option, replacing parts, subassemblies,
or entire assemblies. Wegener Communications shall not be liable for any special, indirect, or
consequential damages. This warranty does not cover parts or equipment which have been subject to
misuse, negligence, or accident by the customer during use. All shipping costs for warranty repairs will
be prepaid by the customer. There are no other warranties, express or implied, except as stated
herein.
WARRANTY
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About This Manual
This manual was composed in Microsoft Word 97, and is configured to be used most easily as an
electronic document. It can be printed and used as a hard copy, but some features, such as links,
are not accessible in that mode.
If viewing the electronic version, we recommend you safeguard the original version to avoid the
effects of somehow altering your master copy.
1.
Cross-references
Cross-references are internally linked for easy access. If you are viewing the electronic version
of this manual, and see text that is blue and underlined, such as APPENDIX A you can “click”
your mouse on that text and “hyperlink” to that section.
When you are ready to return to the previous section, “click” on the web toolbar “back” arrow
and return. The web toolbar should appear automatically when you use a link, but if it does not
you can invoke it from Toolbars on the View menu.
Because many users will print the manual, we have also included the page numbers for most
links.
2.
Table of contents
You can also link from the Table of Contents to any listed page. This also applies to the List of
Tables and List of Illustrations. Just “click” on the page number for any section, table, etc., you
want to move to. Returning to the Table of Contents works just as in Number 1 above.
3.
Other Viewing Methods
In the electronic Word version, there are several methods of moving about a document.
“Clicking” Document Map or Online Layout on the View menu will open a window showing the
document outline. This is similar to the Table of Contents, and will allow you to move about the
document by “clicking” on a section number. It has the advantage of not going away when you
move to another section. It also has the disadvantage of taking up screen space when it is open.
Another way to better view the document is to “click” on the “Up arrow” icon on the Web
Toolbar. This will minimize most of the other toolbars, allowing you to use more of the screen
for viewing the manual.
See Section 1.9 (Page 14) for more information on manual feedback.
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TABLE OF CONTENTS
ABOUT THIS MANUAL........................................................................................5
SECTION 1 GENERAL INFORMATION ............................................11
1.1 GENERAL....................................................................................................................... 11
1.2 INTRODUCTION........................................................................................................... 11
1.3 UNPACKING AND INSPECTION .............................................................................. 11
1.4 INSTALLATION INSTRUCTIONS ............................................................................ 11
1.4.1 ELEVATED OPERATING AMBIENT .............................................................................. 11
1.4.2 R
EDUCED
A
IR
F
LOW
.................................................................................................. 12
1.4.3 M
ECHANICAL
L
OADING
............................................................................................. 12
1.4.4 CIRCUIT OVERLOADING ............................................................................................. 12
1.4.5 R
ELIABLE
E
ARTHING
................................................................................................. 12
1.5 PHYSICAL ENVIRONMENT ...................................................................................... 12
1.6 SECURITY LABELS ..................................................................................................... 12
1.7 PHYSICAL SPECIFICATIONS................................................................................... 13
1.8 TECHNICAL SUPPORT............................................................................................... 13
1.9 MANUALS ......................................................................................................................14
SECTION 2 SYSTEM CONFIGURATION ..........................................15
2.1 UNIT OVERVIEW......................................................................................................... 15
2.2 BLOCK DIAGRAM DISCUSSION.............................................................................. 15
2.3 SPECIFICATIONS......................................................................................................... 17
2.3.1 TRANSPORT DEMUX ................................................................................................ 17
2.3.2 S
YSTEM
P
ROCESSOR
.................................................................................................. 17
2.3.3 AUXILIARY DATA PROCESSING.................................................................................. 17
2.3.4 COMPOSITE VIDEO ENCODER..................................................................................... 17
2.3.5 V
IDEO
S
PECIFICATIONS
.............................................................................................. 18
2.3.6 AUDIO SPECIFICATIONS ............................................................................................. 18
2.3.7 SERIAL ASYNC DATA, MONITOR AND CONTROL OF UNIT........................................ 19
2.3.8 OPTION MODULES FOR EXPANSION PORTS ................................................................ 19
2.3.9 AC POWER ................................................................................................................ 19
2.3.10 LNB DC POWER ....................................................................................................... 20
2.4 LOCAL CONTROLS AND INDICATORS................................................................. 20
2.4.1 FRONT PANEL ............................................................................................................ 20
2.4.1.1 Front Panel Display.........................................................................................................................20
2.4.1.2 Front Panel Keypad.........................................................................................................................20
2.4.1.3 Indicator LED’s ..............................................................................................................................21
2.4.2 REAR PANEL .............................................................................................................. 21
2.4.2.1 DVB/ASI Module LEDs.................................................................................................................21
2.4.2.2 Standard DVB Synchronous Interface............................................................................................21
2.5 EXTERNAL INPUTS AND OUTPUTS ....................................................................... 22
2.5.1 BALANCED AUDIO OUTPUTS...................................................................................... 23
2.5.2 FCC-M
ANDATED
S
UPPRESSION OF
R
ADIATED
E
MISSIONS
........................................ 23
2.5.3 ALARM RELAY AND ADDRESSABLE CONTACT CLOSURES ......................................... 24
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UTY4422-002 Page 8 of 72
2.5.4 AES/EBU C
ONNECTOR
P
INOUT
................................................................................ 24
2.6 EXPANSION CARD CONFIGURATION................................................................... 27
2.6.1 B
ALANCED
A
UDIO
E
XPANSION
C
ARD
........................................................................ 27
2.6.1.1 Audio Card Jumper Configuration..................................................................................................27
2.6.1.2 Audio Card Label Instructions........................................................................................................27
2.6.2 S
YNC OR
ASI O
UTPUT
D
ATA
C
ARD
J
UMPER
C
ONFIGURATION
.................................. 27
SECTION 3 OPERATION ......................................................................29
3.1 MODES OF OPERATION ............................................................................................ 29
3.1.1 P
OWER
U
P
.................................................................................................................. 29
3.1.2 BOOT FAIL ................................................................................................................. 29
3.1.3 ALARM, WARNING, & NORMAL ................................................................................ 29
3.2 LED & ALARM / WARNING CONDITIONS............................................................ 30
3.2.1 CARRIER (GREEN)...................................................................................................... 30
3.2.2 RF LEVEL (GREEN) ................................................................................................. 30
3.2.3 MPEG
(G
REEN
)......................................................................................................... 30
3.2.4 C
UE
(G
REEN
) ............................................................................................................. 30
3.2.5 COMPEL™ (GREEN)................................................................................................ 30
3.2.6 A
UTHORIZED
(G
REEN
)............................................................................................... 30
3.2.7 A
LARM
(R
ED
) ............................................................................................................ 31
3.2.8 WARNING (AMBER) ................................................................................................... 31
3.3 RELAYS .......................................................................................................................... 32
3.4 PROGRAM SELECTION ............................................................................................. 32
3.5 AUDIO HANDLING ...................................................................................................... 32
3.6 SOURCES OF CONTROL............................................................................................ 33
3.6.1 L
OCAL
C
ONTROL
E
NABLED
/D
ISABLED
...................................................................... 33
3.6.2 COMPEL™ .............................................................................................................. 33
3.6.3 TERMINAL.................................................................................................................. 33
3.6.4 M
ODEM
...................................................................................................................... 33
3.6.5 PAL / NTSC SELECTION ........................................................................................... 33
3.7 SERIAL PORT - COMMAND SYNTAX..................................................................... 34
3.8 RECEIVER FUNCTIONS............................................................................................. 35
3.8.1 PERMS, TEMPS, SEARCHING & SETTINGS .................................................................. 35
3.8.2 SIGNAL QUALITY MONITORING ................................................................................. 36
3.8.3 OVERVIEW ................................................................................................................. 37
3.8.4 PUSH BUTTON FUNCTIONS......................................................................................... 38
3.8.5 E-MAIL....................................................................................................................... 41
APPENDIX A TERMINAL/MODEM COMMANDS ..........................43
A.1 STATUS COMMANDS.................................................................................................. 43
A.1.1 H [COMMAND] ........................................................................................................... 43
A.1.2 R TYPE [PAGE] ........................................................................................................... 43
A.2 CONTROL COMMANDS............................................................................................. 44
A.2.1 ABORT ..................................................................................................................... 44
A.2.2 ADDS LOCATION SETTINGS......................................................................................... 44
A.2.3 DELS LOCATION ........................................................................................................ 44
A.2.4 MUTE [
SOURCE
][
SOURCE
]........................................................................................ 44
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Page 9 of 72 UTY4422-002
A.2.5 OH............................................................................................................................. 45
A.2.6 PC
DEVICE BAUD PARITY
............................................................................................. 45
A.2.7 PERM
SETTINGS
......................................................................................................... 45
A.2.8 PERMCH LOCATION.................................................................................................. 45
A.2.9 PW PASSWORD ........................................................................................................... 45
A.2.10 RE
STATE
[
NUMBER
]................................................................................................... 45
A.2.11 SETAUDIO
PORT ROUTE
[
PROGRAM
] [
ATTEN
] .......................................................... 45
A.2.12 SETTIMEOUT SOURCE TIME .................................................................................... 46
A.2.13 TEMP
SETTINGS TIME
................................................................................................. 46
A.2.14 TEMPCH LOCATION TIME.......................................................................................... 46
A.2.15 UNMUTE [SOURCE][SOURCE].................................................................................. 46
APPENDIX B FRONT PANEL DISPLAY ............................................47
B.1 HOME SCREEN............................................................................................................. 47
B.2 UNIT SERIAL NUMBER.............................................................................................. 47
B.3 EMAIL............................................................................................................................. 48
B.4 HARDWARE SETUP .................................................................................................... 48
B.4.1 CURRENT SETTINGS ................................................................................................... 49
B.4.2 C
HANNEL
S
ELECTION
................................................................................................ 49
B.4.3 E
DIT
C
HANNEL
.......................................................................................................... 49
B.4.4 ASPECT RATIO SETTINGS ........................................................................................... 50
B.4.5 A
UDIO
S
ETTINGS
........................................................................................................ 50
B.4.6 S
ERIAL
P
ORTS
............................................................................................................ 50
B.4.7 TEST MODE................................................................................................................ 51
B.4.8 LNB DC P
OWER
....................................................................................................... 51
B.4.9 U
NIT
R
ESET
............................................................................................................... 52
B.5 STATUS REPORTS ....................................................................................................... 52
B.5.1 S
ETTINGS
S
TATUS
...................................................................................................... 52
B.5.2 ASI I
NPUT
S
TATUS
.................................................................................................... 52
B.5.3 MPEG STATUS .......................................................................................................... 55
B.5.4 S
ETTINGS
T
ABLE
........................................................................................................ 56
B.5.5 NC STATUS................................................................................................................ 56
B.5.6 PARAMETER STATUS.................................................................................................. 58
B.5.7 SERIAL PORT STATUS ................................................................................................ 59
B.5.8 RELAY STATUS .......................................................................................................... 60
B.6 VERSION ........................................................................................................................ 60
B.7 NAVIGATION HELP .................................................................................................... 61
APPENDIX C GLOSSARY OF TERMS ...............................................63
APPENDIX D RMA REQUEST .............................................................65
LIST OF ILLUSTRATIONS
Page 10
UTY4422-002 Page 10 of 72
F
IGURE
1. UNITY4422 B
LOCK
D
IAGRAM
.................................................................................... 16
F
IGURE
2. F
ERRITE
B
EAD
I
NSTALLATION
..................................................................................... 25
F
IGURE
3. UNITY4422 F
RONT
P
ANEL
......................................................................................... 26
FIGURE 4. UNITY 4422 REAR PANEL .......................................................................................... 26
LIST OF TABLES
TABLE 1. PHYSICAL SPECIFICATIONS............................................................................................ 13
TABLE 2. VIDEO RESOLUTION REQUIREMENTS............................................................................. 18
T
ABLE
3. V
IDEO
S
PECIFICATIONS
................................................................................................. 18
T
ABLE
4. A
UDIO
S
PECIFICATIONS
................................................................................................. 19
TABLE 5. SERIAL ASYNC PORT REQUIREMENTS......................................................................... 19
T
ABLE
6. F
RONT
P
ANEL
LED’
S
.................................................................................................... 21
T
ABLE
7. S
ERIAL
1
AND
S
ERIAL
2 P
ORT
P
IN
-
OUTS
....................................................................... 21
T
ABLE
8. I
NPUT AND
O
UTPUT
C
ONNECTORS
................................................................................ 22
T
ABLE
9. A
NALOG
A
UDIO
C
HANNEL
1
AND
C
HANNEL
2 C
ONNECTOR
P
INOUTS
........................... 23
T
ABLE
10. AES/EBU D
IGITAL
A
UDIO
P
INOUTS
........................................................................... 24
T
ABLE
11. LED
AND
A
LARM
C
ONDITIONS
................................................................................... 30
T
ABLE
12. A
UDIO
H
ANDLING
....................................................................................................... 32
TABLE 13. SERIAL PORT DEVICE COMBINATIONS......................................................................... 34
T
ABLE
14. S
ERIAL
P
ORT
S
ETTINGS
............................................................................................... 34
TABLE 15. SERIAL PORT OPERATION............................................................................................ 35
TABLE 16. GROUP SETTINGS ........................................................................................................ 36
T
ABLE
17. U
NIT
S
IGNAL
Q
UALITY
................................................................................................ 36
TABLE 18. DISPLAY MODES ......................................................................................................... 37
TABLE 19. PUSH BUTTON FUNCTIONS .......................................................................................... 38
T
ABLE
20. LC D
ISPLAY
M
ENUS
................................................................................................... 39
Page 11
Page 11 of 72 UTY4422-002
SECTION 1
GENERAL INFORMATION
1.1 GENERAL
The purpose of this manual is to describe the proper installation and operation of the Wegener
Communications UNITY4422 MPEG Video Decoder.
1.2 INTRODUCTION
The UNITY 4422 unit is an MPEG decoder designed to receive its input from a DVB-ASI input
source. These inputs include the new 4:2:0 and 4:2:2 chroma formats, as well as the traditional
4:3 and new 16:9 aspect ratios. The input is a DVB-compliant signal, which is processed to
produce NTSC or PAL video, audio, e-mail (front panel text) output, and electronic-relay cueing
signals. The unit is fully network-controlled via the Wegener Communications, Inc. (WCI)
COMPEL
control system.
The optional decryption feature allows for use of WCI
COMPEL
Conditional Access
(COMPEL-CA™). Authorization of each unit is under network control.
In addition to network control, the unit features a front-panel LCD interface, for unit control and
viewing local status information. In addition, limited control of the unit (if allowed by the
COMPEL network) may be implemented via serial port, connecting either to a local terminal
or (via phone modem) to a remote terminal.
The UNITY4422 normally has expansion ports for two add-in modules. This unit, the DVB-
ASI Input model, has the DVB-ASI Input board mounted as Module 1. Therefore, there is only
room for one additional add-in module. Contact the Wegener Sales Department about available
options.
1.3 UNPACKING AND INSPECTION
Carefully unpack the unit and inspect it for obvious signs of physical damage that might have
occurred during shipment. Any damage claims must be reported to the carrier immediately. Be
sure to check the package contents carefully for important documents and materials.
1.4 INSTALLATION INSTRUCTIONS
To avoid damage to this and other equipment, or personal injury, the following items should be
strictly observed.
1.4.1 Elevated Operating Ambient
If equipment is installed in a closed or multi-unit rack assembly, the operating ambient of the
rack may be greater than the room ambient. Therefore, considerations should be given to the
TMRA, or Temperature inside the Mounting Rack, and not just inside the room.
Page 12
UTY4422-002 Page 12 of 72
1.4.2 Reduced Air Flow
Installation of the equipment in a rack should be such that the amount of airflow required for safe
operation of the equipment is not compromised.
1.4.3 Mechanical Loading
Mounting of equipment in a rack should be such that a hazardous condition is not achieved due
to uneven loading.
1.4.4 Circuit Overloading
Consideration should be given to the connection of the equipment to the supply circuit and the
effect that overloading of circuits could have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this
concern.
1.4.5 Reliable Earthing
Reliable earthing of rack-mounted equipment should be maintained. Particular attention should
be given to supply connections other than direct connection to the Branch (use of power strips).
1.5 PHYSICAL ENVIRONMENT
See specific statements in Section 1.4 (Page 11).
Mount the UNITY4422 unit in a standard EIA 19-inch equipment rack located in a clean, dry
environment, and do not place unsupported equipment on the unit. Make sure that total rack
power consumption does not exceed the limits of the AC branch circuit, and that a reliable earth
safety ground is maintained. The unit will meet the full 10-40
o
C operating temperature
specification only if adequate clearance around vent-holes is provided. The units may be
arranged without empty space between them, as long as enough rack ventilation is provided to
prevent severe heat buildup. Please note the maximum per-unit power dissipation of 45 watts.
1.6 SECURITY LABELS
The UNITY4422 uses security labels over some of the screws. There are no user-serviceable
components within the unit, and tampering with the security labels or opening the units will void
your warranty. If you have questions, contact Wegener's customer service department at the
address, phone, or fax numbers listed in Section 1.8 (Page 13).
* * * WARNING * * *
When connecting cables to “F” type connectors apply a force of no more than 12 inch
lb. (Finger tight). Avoid connecting adapters directly to “F” type connectors. Use at
minimum a 1-foot flexible extension cable between “F” type connectors and adapters.
Page 13
Page 13 of 72 UTY4422-002
1.7 PHYSICAL SPECIFICATIONS
The operating temperature of the unit is +10°C to +40°C in still air with unblocked side vents.
(The unit is fan-cooled.)
Table 1. Physical Specifications
Parameter Description
Size 19”W x 1.75”H x 13.75”D
48.26 Cm W x 4.8 Cm H x 34.9 Cm D
Weight 10.5 Pounds (4.8 kg)
Operating Temperature +10°C to +40°C
+50°F to +104°F
Power Requirements 115VAC, 60Hz, 0.8A Typ., or
230VAC, 50Hz, 0.5A Typ.
1.8 TECHNICAL SUPPORT
In the event the unit fails to perform as described, contact Wegener Communications Customer
Service at (770) 814-4057, FAX (678) 624-0294, or e-mail “[email protected]”.
To return a product for service:
1. Obtain a Return Material Authorization (RMA) number by completing and faxing a copy of
the RMA Form (See Appendix D (Page 65) to (678) 624-0294. You may e-mail the same
information instead to:
[email protected]
2. Plainly write the RMA number on the OUTSIDE of the product-shipping container.
NOTE: Writing the RMA number on the outside of the shipping container will
help us to return your equipment to you sooner. Thank you.
3. Return the product, freight prepaid, to the address below:
Service Department RMA# ________
Wegener Communications, Inc.
359 Curie Dr.
Alpharetta, GA 30005
NOTE: All returned material must be shipped freight prepaid.
C.O.D. shipments will not be accepted.
Please contact Customer Service at one of the numbers above if you have any questions
regarding service procedures.
Page 14
UTY4422-002 Page 14 of 72
1.9 MANUALS
If you have any suggestions concerning this, or any Wegener Manual, you can E-mail them to
[email protected]. If you would rather mail them, please do so to the address shown
below. Our preference is that you copy the page(s) in question, mark it up, and fax or mail us the
copy. We do appreciate constructive criticism. The Fax Number is 770-497-0411.
Attn: Manuals
Wegener Communications, Inc.
11350 Technology Circle
Duluth, GA 30097
Page 15
Page 15 of 72 UTY4422-002
SECTION 2
SYSTEM CONFIGURATION
2.1 UNIT OVERVIEW
The UNITY 4422 features several separate hardware components: The DC switching power
supply, the main motherboard, a DVB-ASI input card, front-panel keypad controller card, and a
front-panel LCD assembly. The DC switching power supply provides all internal regulated DC
power. The unit’s input is to the ASI card, mounted as Module 1. That card has two BNC input
connectors and an internal (inside the chassis) connector that connects its output to the
motherboard. This output data stream feeds the main motherboard, which demultiplexes the
selected video and audio elemental streams. These are, in turn, de-compressed and converted
back to the original analog source material for output. Meanwhile, the user may query the unit
using the front-panel keypad for input and the LCD to read the returned status information.
2.2 BLOCK DIAGRAM DISCUSSION
Refer to Figure 1 (Page 16) for the following discussion.
The DVB-compliant receiver card detects the incoming 270 Mbit ASI carrier. The MPEG sync
is detected. The decoded byte stream is output to the main board.
The input to the main board is the multiplexed MPEG2 transport stream. The resulting “clear”
transport stream is then fed to the transport demultiplexer. This device selects the component
elemental stream for selected video and audio programs, as well as the network control data
streams. The selected video data is passed to an MPEG video decoder, which converts the
signal to linear digital video. This is then converted to analog NTSC/PAL in a final encoder for
output. Meanwhile, the selected MPEG compressed audio stream is also routed to a combined
decompression and digital-to-analog converter (DAC) IC. The output is one stereo pair of audio
signals (L and R) on Channel 1 at the back panel. In addition to the first stereo pair, a digital
signal processor monitors and demultiplexes another selected digital audio stream, which is also
decoded and output as the stereo pair on Channel 2 at the back panel.
Page 16
UTY4422-002 Page 16 of 72
Figure 1. UNITY4422 Block Diagram
VIDEO DEC
EXPANSION BUS CONNECTORS
27 M
Hz Clock Distributions:
27M1A
-->
EXPA (Audio)
27M1D1
-->
D1 (Video)
27M2
-->
XC5204
27M3
-->
80C51XA
27M4
-->
CPU_2096, TMS2490
27M5
-->
DSP_2096
27M6
-->
CS4920_1, CS4920_2
VCLK
-->
CL9100
GCLK
-->
CL9100
27M7
-->
XC5202
27M
1M
-->
EXPM (M
PEG2)
CHCLK (7.5 MHz) Distributions:
CHCLKA
-->
DVB Receiver Module
CHCLKB
-->
CL9110
CHCLKC
-->
XC5202
EC
LK
-->
EXPM
20MHz
-->
DSP_320C203
CLOCK
27 Mhz
256K x 16
32K x 8
32K x 8
32K x 8
256K x 16
256K x 16
256K x 16
256K x 16
256K x 16
128K x 8
128K x 8
(32K x 8)
128K x 8
(32K x 8)
128K x 8
128K x 8
128K x 8
AUDIO
DEC 2
AUDIO
DEC 1
DEMUX
REG
REG
REG
20.000 MHZ
VCXO
VIDEO
ENCODER
COMPOSITE
VIDEO
CPU
FLASH 1
FLASH 2
Control
Control
Addr/Data
DSP
DSP CTL
Address
Data
MPEG2 A / V
POWER
SUPPLY
120 VAC
SRAM
MPEG2
TRANSPORT
TRANSPORT
AUDIO 2
CONTACT
CLOSURE
DECRYPTION
I
2
C BUS
I
2
C BUS
I
2
C BUS
I
2
C BUS
ALARM
RELAY
R/X CONTROL
CS
R/X CONTROL
R/X CONTROL
R/X DATA IN
FRAM
SRAM
FLASH (DEBUG)
TX1
AUDIO
3 & 4
16
HS BUS
23
HBUS
I
2
C BUS
IRQ / CTL
L_Addr
CLK_EN
RESET
5 & 6
SECURE MC
2048 X 8
DB-9
PLL
FIFO
DUART
MPEG2
RATE
BUFFER
MPEG2
AUDIO
INT
POWER ON -
WATCHDOG
RESET
LNB
DVB RECEIVER
MODULE (OR
DECRYPTION
EXPANSION)
-12V
+5V
+24V
+5V
LNB
+3.3V
+3.3V
+12V
GND
+24V
+5V
DB-9
I/O PORT
AUDIO 2
I
2
C BUS
I
2
C BU
S
A
C
D
A
LEFT
RIGHT
LEFT
RIGHT
DECRYPTION
SERIAL
PORT
DRAM
DRAM
TO FRONT PANEL
DISPLAY &
PUSHBUTTONS
I
2
C BUS
RJ-11
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The main host processor runs the control system on the main board. This processor interfaces
with the
COMPEL
™ network as well as local users and then controls and monitors the unit’s
operations. To do its job, this processor accesses the control data streams recovered from the
main transport demultiplexer. One of these may be a Conditional Access data stream (if used).
The main processor sends this data to a separate secure microprocessor, which looks to see if its
unit serial number is authorized to receive the broadcast signal and, if so, recovers the secret
keys for decrypting the incoming encrypted transport stream. Meanwhile, the main host
processor also communicates with several peripheral devices. It manages the data passed
to/from the front-panel keypad controller (which lights status LED's, manages an LCD display,
and reads back keypresses). It manages two serial ports that allow for use of a terminal, modem,
printer, or auxiliary data device as well as the display and printing of local e-mail. Additionally,
it controls the L-band receiver daughtercard and any installed Options Modules.
For maximum flexibility, and to make value-added upgrades easily possible, the operating unit
software is stored in flash memory and may be dynamically replaced via the local serial port or
from the satellite network control channel.
2.3 SPECIFICATIONS
The UNITY4422 can be factory-configured for a tuner-QPSK Demodulator input, or for a DVB-
ASI Input. The difference is whether the tuner card or DVB card is installed. The unit can auto-
detect whether a tuner or DVB input card is installed in order to do field troubleshooting, but if a
field modification is being done the boot code will need to be changed. Also, when the boot
code is changed the app and dsp codes will need to be loaded into the unit. This allows one
software package to be installed in a number of different unit configurations, and simplifies
updating that software.
2.3.1 Transport DEMUX
The transport demux is used to extract the desired video and audio streams from the multiplexed
data stream.
2.3.2 System Processor
The main system processor is an extended architecture processor, and uses flash memory for
microcode storage with download capability via either terminal or satellite channel.
The unit also has an MPEG2 video processor
ASIC
, and an audio processor
ASIC
.
2.3.3 Auxiliary Data Processing
An asynchronous user-data stream embedded in the transport stream may be routed to SERIAL 1
or SERIAL 2 ports under user or network control.
2.3.4 Composite Video Encoder
The unit supports the following video resolutions:
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Table 2. Video Resolution Requirements
NTSC PAL
720H x 480V (Full Resolution) 720H x 576V
544H x 480V (3/4 Resolution) 544H x 576V
480H x 480V 480H x 576V
352H x 480V (1/2 Resolution) 352H x 576V
352H x 240V 352H x 288V
2.3.5 Video Specifications
NTSC video performance is specified below at a 9 Mbps video PES rate, 720Hx480V
resolution.
Table 3. Video Specifications
Parameter Production Specification
Signal Type
NTSC
PAL
Output Level
1.0 Vp-p, ± 2% 1.0 Vp-p, ± 2%
Output Impedance 75 Ohms 75 Ohms
Multiburst NTSC From 0.5 to 4.2
MHz: ≤+0/−1.0 dB
From 0.5 to 4.8
MHz: ≤+0/−1.2 dB
Differential Gain
≤ 4 IRE ≤ 4 IRE
Differential Phase
≤ 1.5°≤ 1.5°
L/C Gain Inequality
≤ ± 4 IRE ≤ ± 4 IRE
L/C Delay Inequality
≤ ± 26 nS ≤ ± 26 nS
Line Time W-form Distortion
≤ 1 IRE p-p ≤ 1 IRE p-p
Field Time W-form Distortion
≤ 3 IRE p-p ≤ 3 IRE p-p
Video
S/N Weighted
≥
56 dB
≥
56 dB
2.3.6 Audio Specifications
Audio performance is specified below at a compressed-audio PES rate of 256 kbps.
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Table 4. Audio Specifications
Parameter Specification (each channel of stereo pair)
Output Level-MAX PPL +18.0 ±0.5 dBm into 600 ohms, at 0 dB
attenuation level
Impedance Balanced: < 60 Ohms
Frequency Response 20 Hz to 20 kHz, + 0.5/-1.5 dB
50 Hz to 15 kHz, ± 0.5 dB
Phase accuracy
50 Hz to 15 kHz, ≤± 2°from linear phase
Harmonic Distortion (1 kHz
test-tone, 1 dB below PPL)
≤ 0.5 %
S/N Ratio
m 80 dB (22 Hz to 20 kHz) unweighted
Dynamic Range 16 bits
A/V Sync
≤
±
50 mS error
2.3.7 Serial ASYNC Data, Monitor and Control of unit
Two serial ports (SERIAL 1 and 2) for data to/from the unit have the following characteristics:
Table 5. Serial ASYNC Port Requirements
Parameter Specification
Signal Type Serial Asynchronous Character Data
Levels RS-232
Mode Always 8 data-bits, one start, one stop-bit, half-duplex.
Pin-outs DCE to AT-compatible serial port, 3-wire subset (Rxd,
Txd, and Ground) without handshake lines
2.3.8 Option Modules for Expansion Ports
The unit has one expansion slot, which can be used as a high-speed or low-speed slot. Using it
as a high-speed expansion port provides the transport layer multiplexed stream while using it as
a low-speed expansion port provides the filtered packet data. An I
2
C bus provides control for
option modules. The specifications for individual modules are included in documentation for the
module.
The RF Switch is not an option when the DVB-ASI Input Card is installed.
2.3.9 AC Power
The unit features a universal-input power supply. AC line power is fed into a standard IEC jack.
The nominal inputs are 115 or 230 VAC ± 10% at 50-60 Hz ± 2%. The total AC current
consumption with max LNB DC load is 0.8A at 115 VAC, and 0.5A at 230 VAC. See Table 1
(Page 13).
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2.3.10 LNB DC Power
The unit may feed DC power to an external antenna-mounted LNB using either the RF-In
connector’s center-pin or a terminal on the rear-panel terminal strip (with an external DC power
inserter). The nominal voltage supplied is +17 to +24 VDC, while the maximum load current is
250 mA. The output is short-circuit protected by a thermal fuse. An internal jumper (J27) is
used to enable/disable DC power on the RF-In center-pin. Once that jumper has been set, the
LNB power can be turned on via the front panel menu.
LNB DC Power is available in all audio and video modes.
2.4 LOCAL CONTROLS AND INDICATORS
2.4.1 Front Panel
See Figure 3 (Page 26) for a view of the front panel.
2.4.1.1 Front Panel Display
The front-panel includes a 2-line by 20-character display to support the monitor/control
interface. See Table 20 (Page 39), and APPENDIX B for details on the messages displayed
there, as well as the menus supporting the keypad interface described in Section 2.4.1.2 (Page
20).
2.4.1.2 Front Panel Keypad
The front-panel includes a keypad for user input. The keys are right, left, up, down arrows and
SELECT, and ENTER. See Section 3.8.4 (Page 38), and APPENDIX B (Page 47) for details on
their use.
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