DTV701
Broadcast Digital Television Processor
User’s Manual
DTV 701 User’s Manual
Data, drawings, and other material contained herein are proprietary to W e gener
Communications, Inc., and may not be reproduced or duplicated in any form
without the prior written permission of Wegener Communications, Inc.
The information contained herein is subject to change without notice. Revisions may be issued to advise of such changes and/or additions.
Correspondence regarding this publication:
800015-01 Revision D
should be forwarded to:
Wegener Communications, Inc.
Technology Park/Johns Creek
11350 Technology Circle
Duluth, GA 30097-1502
Phone: 770-814-4000
Fax: 770-623-0698
DTV701 and COMPEL are trademarks of WEGENER Communications, Inc.
All Rights Reserved.
All other trademarks are the property of their respective owners.
The Wegener DTV701 is approved under FCC Part 15B Class A, UL1950, and
CSA.
800015-01 Rev. D 2 wegener. com
DTV 701 User’s Manual
Table of Contents
Chapter 1 General Information
1.1 Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 DTV701 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 DTV701 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Safety Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5 Glossary of Terms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 2 Installation
2.1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Location and Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Desktop Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3 DTV701 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Terminal I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 3 Operation
3.1 Operation Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Ethernet/Web Browser Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Directly connected PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
LAN Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using the Web Browser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Control and Status Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Stream Information Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Q&A/Help Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3 DTV701 Controls and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Liquid-crystal Display(LCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Push buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Front-panel LED Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Rear-panel indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4 Front-panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Unit Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.5 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Software Code Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Software Code Swapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Initialization Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Initialization Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.6 Transport Stream Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
RF Signal Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Input to Output Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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PSIP Structure and Program Selection . . . . . . . . . . . . . . . . . . . . . . . 31
3.7 Alarm/Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Alarm Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Warning Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.8 Software Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Download via Serial Port procedure . . . . . . . . . . . . . . . . . . . . . . . . . 32
Chapter 4 Maintenance and Troubleshooting
4.1 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.2 General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
No functions at all . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
LED indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
WARNING Carrier level out of range. . . . . . . . . . . . . . . . . . . . . . . . 36
WARNING no ATSC stream synchronization . . . . . . . . . . . . . . . . . 36
4.4 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ALARM loss of RF input signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.5 Trouble with Browser Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
DTV 701 User’s Manual
Chapter 5 Customer Service
5.1 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2 Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Index
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Chapter 1 General Information
1.1 Manual Overview
This manual provides instructions and reference information for the proper
installation and operation of the Wegener Model DTV701 Broadcast Digital
Television Processor, referred to throughout the manual as the DTV701.
NOTE:
version 112.
The manual is divided into the following chapters:
An
information.
Please E-mail any suggestions or comments concerning this manual to
manuals@wegener.com. If you prefer to post them through the mail, please
send your comments to the address below. If you have substantial or complex
changes to recommend, our preference is that you copy the page(s) in question,
mark your changes on that copy, and fax or mail us the copy. We always
appreciate constructive criticism.
User interface details in this manual are based on application software
1 General Information
specifications, and a glossary of terms
2 Installation
lation of your DTV701.
3 Operation
4 Maintenance and Troubleshooting
DTV701 and resolving possible operating difficulties
5 Customer Service
Index
of keywords is also provided to help you quickly locate needed
- procedures and information for the correct and safe instal-
- instructions on starting and operating your DTV701
- a description of your DTV701, its functions and
- information on maintaining your
- Our warranty and information on obtaining help
Our Address:
Attn: Manuals
Wegener Communications, Inc.
Technology Park / Johns Creek
11350 Technology Circle
Duluth, GA 30097-1502
Our Fax Number:(770) 497-0411
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1.2 DTV701 Overview
The DTV701 Broadcast Digital Television Processor (see Figure 1.1) receives
VHF/UHF broadcast HDTV signals and provides an output ASI stream for
connection to a cable system QAM modulator. It will accept a broadcast ATSC
8VSB signal on the tuner input and produces an ASI MPEG Transport Stream
output suitable for connection to a QAM modulator (64QAM or 256QAM).
Programs may be remapped or selected for removal from the output stream.
DTV 701 User’s Manual
Physical
Description
Features
The DTV701 is housed in a standard, rack-mountable chassis. Its front panel
provides a user interface through an LCD, eight LEDs, and six push buttons
(see section
3.3 DTV701 Controls and Indicators
on page 24). The rear panel
holds the ports that allow connection to power , in coming signal, and peripheral
devices.
Figure 1.1 DTV701 Broadcast Digital Television Processor
Your DTV701 has the following features:
• One ATSC 8VSB tuner input (F connector)
• Two duplicate ASI MPEG Transport Stream outputs (BNC connectors)
• Time re-stamping of PCR, PTS, and DTS information.
• User selection of input programs to be included in the output stream.
• One Ethernet TCP/IP control interface (RJ-45 connector)
• One asynchronous data input/output (DB-9 connector)
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DTV 701 User’s Manual
1.3 DTV701 Specifications
Table 1: Technical Specifications
Characteristic Specification
AC Power
Voltage 90 to 132 Vac or 175 to 264 Vac auto-detect/selected
Frequency 50 or 60 Hz ± 2%
Power Consumption < 15 Watts
RF
Input Frequency Range 53 to 810 MHz
Symbol Rate Range 10.76 Msps
Input Data Rate 19.393 Msps
Input Signal Level -80 to -20 dBm
Input Impedance 75 Ω, unbalanced
Input VSWR < 3.5:1 in 75-Ω system
LO Leakage at Input
SERIAL PORTS
Standard RS-232
Handshaking None
Service Software download
Baud Rates 115.2 kbps
Formatting 8 data-bits, 1 start, 1 stop-bit, no parity
ETHERNET PORT
Physical Layer 10BaseT/100BaseT (twisted pair) on RJ-45 jack
Media Access and Link Layer Per IEEE 802.3 (Ethernet)
≤
-63 dBm max
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Table 1: Technical Specifications
Characteristic Specification
ALARM AND WARNING RELAYS
Alarm Function Contact closure for main power off, loss of input signals
Warning Function Contact closure for poor signal quality
Type Form A, Normally Closed (internal jumper may be set at
factory for normally open)
Rating 30Vdc open circuit, 500 mA max current closed
EXPANSION MODULE SLOT Allowable expansion modules
· 8VSB tuner module
MECHANICAL
Height 1 std. RU (1.75 inches nominal)
Width EIA std. 19-inch mounting
Depth ~13.32 inches (back of rack ears to end of connectors)
Weight ~12 lb
Open Module Slots 2 - each 2.5"W x 1.375"H x 7"D on rear panel
Cooling Internal fan
ENVIROMENTAL
Location Indoor only
Operating Temperature +10° C to +40° C
Storage Temperature -20° C to +70° C
Altitude Up to 2000 meters
Humidity Maximum relative humidity of 80% for temperatures up to
31° C decreasing linearly to 50% relative humidity at 40° C.
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DTV 701 User’s Manual
1.4 Safety Summary
The DTV701 is designed for safe use with few special precautions required of
the user. The following items are basic precautions to use when installing and
working with your DTV701:
Do not open the DTV701’s chassis cover.
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DTV 701 User’s Manual
1.5 Glossary of Terms and Abbr eviations
Table 2: Glossary of Terms
Term Definition
AC Alternating current
Alarm A condition or notification of a condition that prevents your DTV701 from performing
properly
Application Software
ASI (or DVB-ASI) An “asynchronous” bit-serial physical interface for Transport Streams. Transmitting
ATSC Advanced Television Systems Committee - sets standards for standard definition and
Boot loader Software residing in non-writable zone of flash which executes at unit reset.
Carrier An RF signal containing coded audio, video, and/or other data
DVB-ASI see ASI
EIA Electronic Industries Association
Ethernet The widely-used LAN technology specified by IEEE standard 802.3
Flash memory A memory dedicated to storing the unit’s software and an image of some hardware pro-
IEEE Institute of Electrical and Electronics Engineers
LAN Local area network. Your DTV701 may be connected to an Ethernet LAN.
The main host software which sets up the unit hardware, runs the process of acquiring
Transport Stream sources, sets up and monitors the multiplexing processes, monitors
unit operations, and provides interfaces with the network and local users.
and receiving functions are designed such that the time relationships between all packets and their timing references are unchanged.
high definition television in the U.S. Sometimes used to mean the HDTV standards.
gramming code.
LCD Liquid crystal display. The front-panel text screen on your DTV701 is a liquid crystal
display.
LED Light-emitting diode. The front-panel indicator lights on your DTV701 are LEDs.
Mbps, kbps Megabits per second or kilobits per second - units of data transport rate.
MPEG Moving Picture Experts Group - refers to the method of video compression established
by this group.
NVRAM Non-volatile memory. A memory dedicated to storing the unit’s setup parameters. This
memory retains its contents through power outages.
PAT Program Allocation Table. Master table which identifies all the Programs in the Trans-
port Stream. It associates Program numbers to the PIDs bearing the associated Pro-
gram’s PMT.
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DTV 701 User’s Manual
Table 2: Glossary of Terms
Term Definition
PCR Program Clock Reference. Time-base signal used to synchronize transport stream data.
PID Packet Identifier. The unique Transport Stream packet identifier assigned to each con-
stituent data stream within the Transport Stream. Also, in this document, “PID” is used
to designate the stream itself.
PMT Program Map Table. Table for a given Program identifying all the PIDs for its PCR,
video, audio, and user data streams.
Program In the MPEG hierarchy, a grouping of related audio, video, or generic data PIDs sharing
a common PCR time base and (usually) sharing a common schedule. See PMT.
PSI Tables Program-Specific Information Tables. A group of information-bearing tables, each
borne by well-known PIDs, regularly transmitted in the Transport Stream. See also
“PAT” and “PMT”. Also, ISO 13818-1 gives a thorough description of these and other
Tables.
PSIP Program and System Info rmation Prot ocol - a met hod f or tr anspor ting d igital te levis ion
system information and electronic program guide data.
RAM Random access memory. A general term for all memory volatile memory types out of
which application software executes and into wh ich its variables, state info rmation, and
messages are stored. RAM is also used to designate the volatile storage used by the
Transport Demux and decompression devices.
RF Radio frequency
TMRA Maximum Recomme nded Ambient Temperature, the highest op erating temp eratur e for
which the unit is rated
Transport Stream
(or MPEG Transport Stream)
W arning A condition or notification of a condition that may compromise the proper performance
A multiplex of several data streams, each of which is borne in Transport packets, 188-
byte blocks containing a sync word, header information (incl udin g a P ID ), and pay l oad
data. This multiplex includes PSI data tables, Programs, and padding in the form of null
packets.
of your DTV701.
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DTV 701 User’s Manual
800015-01 Rev. D 12 wegener.com
Chapter 2 Installation
This chapter provides instructions on unpacking, mounting, and connecting
your DTV701 as well as connector information including detailed pinouts.
2.1 Unpacking and Inspection
Carefully unpack the unit and its ac power cor d and inspect for obvious signs
of physical damage that might have occurred during shipment. A ny damage
claims must be reported to the carrier immediately. Be sure to check the package contents carefully for important documents and materials.
NOTE:
case you must later return the unit for repair. Packing these units in other
containers in such a way that they are damaged will void your warranty.
Please save the packing materials and original shipping containers in
2.2 Location and Mounting
The DTV701 should be located indoors and may be mounted in a standard,
19-inch equipment rack within one standard RU.
This is a Class A product. In a domestic environment this product may cause
radio interference for which the user may need to take mitigating action.
WARNING
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DTV 701 User’s Manual
DANGER
To avoid damage to this and other equ ipment, or personal injury, the following
items should be strictly observed.
Elevated Operating Ambient
When equipment is installed in a closed or multi-unit rack assembly, the
operating ambient of the rack environment may be greater than the room
ambient. Therefore, consideration should be given to the ambient air
temperature within the rack, and not just inside the room, when deciding if the
maximum recommended ambient operating temperature (TMRA) is being met
or exceeded.
Reduced Air Flow
Equipment should be installed such that airflow required for safe operation of
the equipment is not compromised.
Mechanical Loading
Mounting of the equipment in a rack should be such that a hazardous
condition is not produced by uneven loading. This unit is not very heavy, but
total rack loading must be considered. Also, do not rest any unsupported
equipment on your DTV701.
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. Ensure that the total rack or breaker
power consumption does not exceed the limits of the ac branch circuit.
Appropriate consideration of equipment ratings should be used when
addressing this concern.
Reliable Earthing
Reliable earthing of rack-mounted equi pment sho uld be maintai ned. Part ic ula r
attention should be given to supply connections other than direct connections
to the branch circuit (use of power strips, chassis ground lugs, etc.).
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DTV 701 User’s Manual
Rack
Mounting
Desktop
Installation
Your DTV701 is sized to fit in an EIA-standard, 19-inch-wide equipment rack.
a) First install angle brackets or cross-supports capable of supporting both
the unit and its connecting cables. Screw or bolt the supports securely
to the equipment rack.
b) Place the DTV701 on its supports and use four anchor screws or bolts
and nuts to secure the unit’s front brackets to the rack.
c) Connect the chassis grounding screw to an earth ground before
connecting the power cord to the unit.
WARNING
The front brackets must be secured to the rack. If front brackets are left
unsecured, the unit may shift forward and fall from the rack during installation
or operation. Failure to secure the front brackets may result in personal injury
and/or damage to the equipment.
T o set up the DTV701 in a deskto p environment, place the chassis on a flat surface where it will not be subject to spills or impacts. Also route cables to the
unit so that they will not be hit or pulled causing damage to the connectors or
to the unit itself. Ensure a sufficient flow of cool air (See “Reduced Air Flow”
on page 14.) so that the unit's operating ambient temperature range is not
exceeded.
WARNING
Locate the DTV701 and its cables to avoid impacts, spills, and pulling cables
and to ensure sufficient air flow. Failure to locate the DTV701 in a proper
environment may result in damage to the equipment.
2.3 DTV701 Connections
Figure 2.1 DTV701 System Setup shows placement of the DTV701 in a basic
system setup. Figure 2.2 DTV701 Rear Panel on page 17 illustrates details of
the DTV701’s rear panel.
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DTV 701 User’s Manual
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Figure 2.1 DTV701 System Setup
DTV 701 User’s Manual
Before applying power, make the following connections to your DTV701
(refer to Table 3 for connector details):
a) Connect the chassis grounding screw to an earth ground before
b) Connect the ATSC 8VSB signal from your antenna to the DTV701’s
c) Connect downstream equipment to the ASI OUT 1 and ASI OUT 2
Figure 2.2 DTV701 Rear Panel
connecting the power cord to the unit.
input RF port.
ports as desired.
d) Connect your LAN line to the DTV701’s Ethernet port.
e) If desired, connect the Relays port to your equipment to provide contact
closures during alarms and warnings.
f) Finally, connect the supplied ac power cord to the DTV701’s IEC
receptacle and to a 100-to-120 Vac source.
Table 3: DTV701 Connector Details
Designation Connector Type
115/230 Vac Power Male IEC receptacle AC LINE IN
RF Input female T ype F RF IN
ASI Out 1 female BNC ASI OUT 1
ASI Out 2 female BNC ASI OUT 2
Pin
Number
Signal Name
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Table 3: DTV701 Connector Details
DTV 701 User’s Manual
Designation Connector Type
Ethernet LAN female RJ-45 1
Serial Async I/O DB-9 1
Alarm/Warning
Relays
male DB-9 1
Pin
Number
Signal Name
EN OUT +
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
EN OUT -
EN IN +
NC
NC
EN IN -
NC
NC
DCD (+5V, 4.7 kΩ)
RxD (output)
TxD (input)
NC
GND
DSR (+5V, 4.7 kΩ)
NC
CTS (+5V, 4.7 kΩ)
RI (+5V, 33 Ω)
Not used
Not used
WARNING COM
ALARM COM
NC
Not used
Not used
WARNING +
ALARM +
Ethernet
An Ethernet 10BaseT/100BaseT port is included and is the primary user interface using an HTML browser based interface. The unit has a URL which is
assigned via the front panel. The “home” page is then accessed by users via the
Ethernet port. From this page, the desired channel selections may be performed
and status monitored.
Terminal I/O
The Terminal serial port is configured to 115.2k, N, 8, 1. The Terminal device
is used for command and control of the DTV701. This I/O is a basic VT100like emulation. User input text strings terminated in carriage-returns prompt all
I/O. The terminal should be set to local echo ON because the DTV701 only
echoes a carriage-return/linefeed and then a ‘>’ prompt after e ntry of a command-line terminated in carriage-return.
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Chapter 3 Operation
3.1 Operation Overview
This chapter contains detailed operating instructions for your DTV701. The
following sections address:
• Ethernet/Web Browser Control
• DTV701 Controls and Indicators
• Front-panel Operation
• Initialization
• Transport Stream Processing
• Alarm/Warning System
• Software Downloads
Local user control is from a LAN via RJ-45 Ethernet or the front-panel LCD/
keypad. All settings may be presumed to be retained through power cycling
unless otherwise specified. This means that they are still in effect through
resets, whether by power outage, commanded reset, or failure-recovery resets.
3.2 Ethernet/Web Browser Control
The DTV701’s primary user interface is from a web browser using the rearpanel Ethernet LAN connection. An HTML script interface a llows a user to
control and monitor the unit using a standard web browser. Each unit contains
a user-defined quad URL address, subnet mask, and gateway address (See
DTV701 IP Setup).
There are two basic methods of using the Ethernet connection – with a directly
connected PC or with a PC connected through a LAN.
Directly
connected PC
For control from a local PC, attach the DTV701’s Ethernet port to the Ethernet
network connector on the PC using a crossover RJ-45 cable (8 pins).
Before using this Ethernet connection, the appropriate IP address, netmask,
and gateway must be selected via the front-panel interface.
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DTV 701 User’s Manual
Perform the DTV701 IP Setup as shown in Table 4. Other addresses than those
shown may be used if they are compatible. If you have any questions, ask your
network administrator.
Table 4: DTV701 IP Setup
Parameter Setting
IP Address 172.016.100.020
Netmask 255.255.000.000
Gateway 000.000.000.000
Perform the PC IP Setup as shown in Table 5:
Table 5: PC IP Setup
Parameter Setting
IP Address 172.016.100.001
LAN
Connection
Using the
Web Browser
Subnet Mask 255.255.000.000
For LAN connection, attach the DTV701’s Ethernet port to the LAN using a
normal RJ-45 cable (8 pins). Set the DTV701 IP Address, Netmask, and Gateway as directed by your network administrator. Use any PC on the LAN to
connect to the DTV701 using the web browser instructions below.
NOTE:
Each unit on the network must have a unique address.
To begin monitor and control functions from a PC or LAN connection:
a) Open the current internet browser of your choice from the local PC or
computer on the LAN attached to your DTV701.
b) Set the browser's address field to http://nnn.nnn.nnn.nnn where
nnn.nnn.nnn.nnn is the IP address of the unit to be controlled (set from
the DTV701’s front-panel, IP Address screen).
NOTE:
For IP addresses which include subfields with leading zeros, you must
omit those zeros when entering the address in your browser. For example, IP
address 128.092.050.004 must be entered as 128.92.50.4.
The DTV701 Control and Status page will appear. You may select either the
Stream Information or Q&A/Help pages at any time by clicking on their
respective tabs at the top of the screen.
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DTV 701 User’s Manual
Control and
Status Page
The Control and Status page (see
Figure 3.1 Control and Status Page
on
page 22) allows you to select the off-air channel number for the HDTV input.
The status section provides signal status.
The RF Input Control is used to select the video channel. Select the Broadcast
radio button for off-air signals or the Cable radio button for cable television
signals. The user enters the desired channel number and clicks the Tune button.
The unit then tunes to the desired channel and sends back the status information via the Status frame on the right side of the web page. The unit then periodically updates the page with ongoing status reports.
Acquiring Broadcast ATSC Signals
As with the traditional television broadcast, you will need a good-quality
outdoor antenna pointed toward the transmitter. With the antenna correctly
positioned and the cable connected to the DTV700’s RF input, select the
channel number on the front panel or via the web interface. Note that this is
the ATSC RF channel number (not the broadcaster’ s legacy analog channel).
Weak Signal
- If you’re within reception range you should see an SNR
between 20 dB and 35 dB with no errored seconds. An SNR l ess than 20 dB
with accumulating errored seconds indicates a weak signal condition that
results in impaired video and audio. Check antenna pointing for maximum
signal (higher SNR). If this is not successful, you may need a line amplifier
or a higher gain antenna.
Multipath
- If you have video problems and the SNR shows wide fluctuations, you could be experiencing multipath reception which is the reception
of the direct signal and a strong reflection. Rotating the antenna away from
the interfering signal may solve this problem.
At bottom left, PSIP may be enabled or disabled by selecting On or Off. Enable
PSIP in order to change output channel numbers and channel short name.
The received signal parameters are labeled RF Input. This section includes
frame lock status (true or false), signal-to-noise ratio (in dB), errored seconds,
and signal strength quality. The ASI Output section lists the output stream data
transport rate as well as the output lock status. (The QAM modulator associated with the data rate is shown after the data rate, 64 QAM for 26.97 Mbps or
256 QAM for 38.81 Mbps.)
wegener.com 21 800015-01 Rev. D
DTV 701 User’s Manual
Stream
Information
Page
Figure 3.1 Control and Status Page
The Stream Information page shown in Figure 3.2 below displays input and
output status. The input side lists the program streams included in the input
(both standard definition and high definition signals in this example). The output side displays the programs contained in the ASI output stream.
800015-01 Rev. D 22 wegener.com
Figure 3.2 Stream Information Page
DTV 701 User’s Manual
NOTE:
If PSIP is turned off on the Control Page, the check boxes do not
appear and the ability to change program or channel numbers is disabled.
T o change major and minor channel numbers and the channel short name, click
the highlighted channel name and number. The following window will appear:
Click the Submit button after making your changes and the new information
will appear on the Status Page. Note that the major and minor channel numbers
are limited to three characters and the short name to seven characters.
Q&A/Help
Page
A list of questions and answers about operating your DTV701 is available on
the Q&A/Help page shown below in Figure 3.3. Click the Q&A/Help tab to
display this page.
wegener.com 23 800015-01 Rev. D
Figure 3.3 Q&A/Help Page
3.3 DTV701 Controls and Indicators
There are three major parts of your DTV701’s front-panel controls and indicators: the liquid-crystal display (LCD), the six push buttons, and the eight LED
indicators. Essentially all control available through the terminal is also available via the front panel (shown below in Figure 3.4).
Figure 3.4 DTV701 Front Panel
DTV 701 User’s Manual
Liquidcrystal
Display(LCD)
The DTV701’s 2x20-character LCD indicates unit status and prompts for and
reflects user input. Here, you will see your DTV701’s "home screen" which
alternates between showing the channel number and the RF downlink frequency on the left and continuously shows the signal-to-noise ratio in the
lower right. No matter which LCD screen is currently shown, pressing the ESC
button repeatedly returns the display to the home screen. From this home
screen, press the ENT button to display the unit’s serial number and the application software version number. Using the adjacent push buttons, you can navigate the DTV701’s various screens and edit input fields (see section
Front-panel Operation
CHAN: 20
BDCAST SNR:32.1
on page 27).
551.00MHz
8VSB SNR:32.1
3.4
The default LCD screen is this "home screen". No matter where a user may be
in the LCD screen hierarchy, if no front-panel key press is made for more than
five minutes, then the LCD menu reverts to the “home screen”.
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DTV 701 User’s Manual
Push buttons
These six push buttons (shown below in Figure 3.5) are your means of commanding the DTV701 from the front panel. The four arrow buttons allow navigation through the menu screens and character selection when editing userinput fields. The Enter (ENT) button serves to select menu options (downward
navigation), to open user-input fields, or to commit user input to the DTV701.
The Escape (ESC) button allows exit from user-input fields without saving the
entry or selection. ESC also provides upward navigation through the menu
structure to the home screen. The arrow buttons also provide navigation
through user-input screens and switching between user-selectable options.
Figure 3.5 DTV701 Push Buttons
Front-panel
LED
Indicators
Figure 3.6 below shows the eight light-emitting diodes (LEDs) that provide
status information about your DTV701 and its processes.
cator Descriptions
on page 26 provides the meaning of the c olor and state of
Table 6: LED Indi-
each LED.
Figure 3.6 DTV701 LED Indicators
wegener.com 25 800015-01 Rev. D
Table 6: LED Indicator Descriptions
DTV 701 User’s Manual
Indicator
Label and Color
Indicator State Indicator Meaning
CARRIER LOCK Constant RF receiver board is tracking a carrier
GREEN Off RF receiver board is not tracking a carrier
CARRIER LEVEL
Constant RF receiver board is tracking a carrier and RF
level is OK
GREEN
Off RF level is not correct
ATSC LOCK
Constant A TSC input has Transport Stream synchronization
present
GREEN
Off ATSC input does not have Transport Stream syn-
chronization present
PSIP PRESENT
Constant Program and System Information Protocol is
enabled
GREEN
Off Program and System Information Protocol is not
enabled
WARNING Constant Warning condition(s) exists
YELLOW Off No Warning condition exists
ASI OUT LOCK Constant ASI Output is active
GREEN Off ASI Output is inactive
ALARM Constant Alarm condition(s) exists
RED Off No Alarm condition exists
LAN ACTIVITY
Flash LAN activity present. Only lights when data is
transferred to the DTV701. This is not a continu-
GREEN
ous monitor of LAN communications.
Off No LAN activity transferring data to the unit
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DTV 701 User’s Manual
Rear-panel
The LED indicator on the rear panel gives Ethernet status.
indicator
Green Ethernet LED: OFF for no signal, ON for input signal detected
3.4 Front-panel Operation
The DTV701 may be set up and controlled from the front panel as follows:
1. Home Screen
First Screen
Second Screen
Press the ENT key to view the unit’s serial number.
Press the key to go to Input Setup (step 2).
(alternates between screens every 4 seconds.)
CHAN: 20
BDCAST SNR:32.1
551.00MHz
8VSB SNR:32.1
2. Input Setup
Input Setup...
Press the ENT key to go to Channel Selection (3).
Press the key to go to Output Rate Select (6).
Press the ESC key to go to the Home Screen (1)
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DTV 701 User’s Manual
3. Channel Selection
CHANNEL:
20
Press the ENT key and then the or key to change the selected channel
number. Press ENT to confirm the selection or ESC to cancel changes.
Press the key to go to the RF Standard screen (4).
Press the ESC key to go to Input Setup (2).
4. RF Standard Selection
RF Standard:
BROADCAST
Press the ENT key and then the or key to select BROADCAST or
CATV. Press ENT to confirm the selection or ESC to cancel changes.
Press the key to go to MPEG Select (5)
Press the key to go to Channel Selection (3)
Press the ESC key to go to Input Setup (2)
5. MPEG Selection
MPEG Select:
SELECT
Press the ENT key and then the or key to select ALL or SELECT.
Press ENT to confirm the selection or ESC to cancel a change.
Press the key to go to RF Standard (4).
Press the ESC key to go to Input Setup (2).
Choosing ALL prevents changes to program numbers or stream content. The
received MPEG stream is passed through to the output unchanged. Choosing
SELECT allows the user to change program and channel numbers (and
channel short name) as well as to exclude program streams from the output.
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DTV 701 User’s Manual
6. Output Rate Selection
Press the ENT key and then the or key to select 19.39 Mbps, 26.97
Mbps, or 38.81 Mbps.
Press ENT to confirm the selection or ESC to cancel changes.
Press the key to go to IP Setup (7).
Press the key to go to Input Setup (2).
Press the ESC key to go to the Home Screen (1).
7. IP Setup
Output rate:
38.81 Mbps
IP Setup...
Press the ENT key to go to IP Address Select (8).
Press the key to go to Output Rate Select (6).
Press the ESC key to go to the Home Screen (1).
8. IP Address Selection
IP Address:
000.000.000.000
Press the ENT key and then press the arrow keys to change the IP address.
Press ENT to confirm the address or ESC to cancel changes.
Press the key to go to Netmask Select (9).
Press the ESC key to go to IP Setup (7).
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DTV 701 User’s Manual
9. Netmask Selection
Netmask:
255.255.0.0
Press the ENT key and then press the arrow keys to change the Netmask.
Press ENT to confirm the Netmask or ESC to cancel changes.
Press the key to go to Gateway Select (10).
Press the key to go to IP Address Select (8).
Press the ESC key to go to IP Setup (7).
10. Gateway Selection
Gateway:
0.0.0.0
Press the ENT key and then press the arrow keys to change the Gateway.
Press ENT to confirm the Gateway or ESC to cancel changes.
Press the key to go to Netmask Select (9).
Press the ESC key to go to IP Setup (7).
Unit
Shutdown
Simply remove power to the unit to shut down your DT V701. No spec ial procedure is required.
3.5 Initialization
Software
Code
Structure
Software
Code
Swapping
The DTV701 Processor contains the following unit software: A boot loader
and one version of operating application software. Before power-up, these
components are stored in non-volatile memory. The boot loader resides in a
portion of the memory that may only be written at the factory while the application is stored in a portion of memory tha t can be over-written with downloads of new software. The boot code has the responsibility of deciding if the
resident application software image should be allowed to execute.
In the situation where a newly downloaded application fails a quality self-test,
a running application will automatically pass control to its backup application.
Initialization
Sequence
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At power up, the boot loader software executes first. It performs a test of RAM
and then relocates itself f or further execution from there. (See
3.8 Software
DTV 701 User’s Manual
Initialization
Failure
Downloads
on page 32 for instructions on putting the DTV701 into serial
command mode.) During boot-up, the following screens appear on the LCD:
FPCon v001
Checking Current
Application . . .
Loading Application
All LEDs light at this stage.
102
Wegener DTV701
Following normal boot-up, the "home" screen will appear as described in sec-
3.4 Front-panel Operation
tion
on page 27 and the LEDs reflect the actual
state of the unit.
When in Initialization Failure mode, the unit is essentially dead. There is no
ASI output, the alarm relay is de-energized (alarm state), the alarm LED is ON,
the general purpose relays are all open, and the unit does not attempt acquisition of input streams.
3.6 Transport Stream Processing
Refer to ISO 13818-1 for supporting details on the structure of MPEG Transport Streams.
RF Signal
Reception
Input to
Output
Processing
PSIP
Structure and
Program
Selection
The channel number or the carrier frequency must be supplied to the tuner in
order for the unit to derive its Transport Stream from the RF input. This data is
used to set up the tuner module. If carrier acquisition is successful, then the
Transport Stream borne in the carrier will be passed to the ASI output.
The DTV701 has an RF ATSC input which the unit processes. Programs are
passed through to the ASI output. Processing includes PSIP changes as
required. The unit accepts input from the ATSC port and based on user selection, certain PIDs may be dropped or remapped and then passed to the ASI output with time stamping updated.
Within the transport stream are PIDs carrying tabular information on that
stream. The PAT describes all the programs available. The program number
identifies each program in the transport stream. When a source of data is
acquired, the stream is passed to the internal transport demultiplexer. This cir-
wegener.com 31 800015-01 Rev. D
cuit then extracts the PAT and PMT information and provides this information
to the user via the Stream Information page of the web interface.
3.7 Alarm/Warning System
The alarm and warning system is intended to provide indications to local user
of a critical failure or imminent failure. See
tions
on page 26 for actual indications.
DTV 701 User’s Manual
Table 6: LED Indicator Descrip-
Alarm
Conditions
Warning
Conditions
Generally, if the unit is unable (or presumed to be unable) to present output
from a selected transport stream, then that is an alar m state. The following list
defines all alarms during normal operation (also see
page 31).
1. RF receiver card run-time failure
2. Eb/No below alarm level while tracking RF carrier
3. Failure of various outputs (see
Generally, the unit presents warnings when an alarm condition may be immi-
nent from unit stress or poor signal conditions.
3.8 Software Downloads
Download via
Serial Port
procedure
The DTV701 must be placed in the application download mode in order to
place new application software in the unit via the rear-panel terminal port. The
new application (DTV701_nnn.DL where nnn is the revision number) should
be located on the PC used to connect to the DTV701. The PC runs a terminal
emulator program (such as Hyper Terminal) set to 115.2 kbps, no parity, 8 data
bits, and one stop bit. The terminal must be set up to echo typed characters
(ASCII setup). The PC is connected to the DTV701 using a 9-pin extender
cable.
Initialization Failure
Warning Conditions
on
below)
1. Place the DTV701 in the download mode by using the following steps:
NOTE:
closely following the LED cues. The proc ess will not succ eed if keys trokes are
delayed or performed incorrectly.
800015-01 Rev. D 32 wegener.com
This procedure must be followed carefully and executed quickly,
a) While holding the front panel left and right arrow keys down, power on
the unit.
b) When the red alarm LED goes on, release the right arrow key.
c) When the yellow alarm LED goes on, release the left arrow key.
DTV 701 User’s Manual
d) When the red alarm LED goes on again, push the right arrow key.
e) The unit should now be in upload mode and accessible via the terminal.
2. The front panel should indicate Boot Loader Mode and show the time
remaining to initiate the upload. The front-panel warning and alarm LEDs
are flashing. If the download is not initiated within five minutes, the unit
automatically restarts and runs the current application.
Boot Loader Mode
Terminal Time: 04:54
3. The terminal screen will show the following message (note that the version
may differ from that indicated below).
Entering Terminal Mode.
Mode will timeout after approx. 5 min. of inactivity.
Wegener Communications Copyright 2002
DTV700 Boot Loader Version 100
Type H for a list of terminal commands
>
4. After typing "H" you will receive the following output.
SETBAUD baud_rate Set terminal rate (9600, 19200, 38400,
57600, 115200)
DLAPP [A | B] [F] Download over bad app in flash (.DL file)
A | B Download to flash A or B (A is
default)
F Force download even if app is good
GOAPP [F] Starts the current application ('F' forces
app. load)
RESET Resets the unit
APPSTAT [Q] Reports application info. ('Q' performs
quick check)
SWITCH [A | B] Switches app A or B. If no arg, switch to
backup.
OK>
5. Type "DLAPP A F" to download (force to flash A) the latest .DL application file to the DTV701. (To download to flash B, type "DLAPP B F".)
6. On the terminal program, send the desired application (DTV701_nnn.DL)
by entering send file using the XMODEM 1K protocol. (Only the
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DTV 701 User’s Manual
XMODEM 1K protocol may be used.) The following will appear on the
front-panel LCD:
DOWNLOADING:
APP CODE (FLASH x)
Where x is either A or B, representing the two possible application code
storage spaces in the Flash memory.
7. When the terminal indicates that the file transfer is complete, type
“APPSTAT” to verify that the application loaded correctly. (This takes
approximately four minutes to complete.) An asterisk is shown beside the
current application (A or B).
8. If the current application is not the desired one, use the SWITCH command to make another application the current one. Type "SWITCH A" to
switch to application A or "SWITCH B" to change to application B.
9. Type RESET to restart the unit.
10. As the unit restarts, verify from the front panel (should display as shown
below) that the desired application is being initiated.
Loading Application
NNN
800015-01 Rev. D 34 wegener.com
Chapter 4 Maintenance and Troubleshooting
4.1 Maintenance
Maintenance of the DTV701 is limited to keeping the chassis clean and ensuring that cables remain firmly connected. Occasionally wipe the exterior with a
soft, damp cloth to remove any accumulated dust and dirt and check that cables
are securely attached.
The DTV701 incorporates security labels over some of the screws. There are
no user-serviceable components within the DTV701. Tampering with the security labels or opening the unit will void your warranty. If you have any questions, contact Wegener’s Customer Service Department at the address or
numbers listed under Customer Service.
4.2 General Troubleshooting
This section is not an intended as an exhaustive list of all possible situations.
Please contact us as directed in
any problems you cannot resolve independently.
If you are experiencing any difficulties, first check the LCD and LED indicators on the DTV701 to determine if any warnings or alarms are active. See
Table 6: LED Indicator Descriptions
states. If operating over the Ethernet interface, check the Control and Status tab
on your browser for Warning messages.
No functions
at all
If the unit is not functioning at all and neither the LCD nor any LEDs are
active, there may be a loss of ac power. Do the following:
a) Check that ac power cord is firmly connected at both ends.
b) Check that your ac power source is supplying ac power.
Chapter 5 Customer Service
on page 26 for descriptions of LED
on page 39, with
wegener.com 35 800015-01 Rev. D
DTV 701 User’s Manual
LED
indicators
In the following sections, LEDs are illustrated as black (off) or white (on) to
represent actual LED appearance. The LEDs are shown here reflecting the
DTV701 in normal operation with no Alarms or Warnings:
4.3 Warnings
WARNING
Carrier level
out of range
Video may be ga rbled or lost when the RF carrier leve l is out of range. If the
carrier level is too high or too low, the WARNING LED will be lit and the
CARRIER LEVEL LED will be off (as shown below). Some means of amplifying or attenuating the signal should be attempted to bring the carrier level
into range.
WARNING
no ATSC
stream
If ATSC stream synchronization is not present, video quality may be diminished. This condition is indicated when the ATSC LOCK LED is inactive or
unlit (as shown below).
synchronization
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DTV 701 User’s Manual
4.4 Alarms
ALARM loss
of RF input
signal
Video is lost when the incoming signal is lost. When the CARRIER LOCK
LED is inactive or unlit (shown below), no RF input signal is being tracked by
the DTV701. The ALARM LED lights and the ATSC LOCK, PSIP PRESENT ,
and ASI OUT LOCK LEDS will be unlit. Check RF connections and try repositioning the antenna and retuning to correct the problem..
4.5 Trouble with Br owser Interface
If the unit appears to be functioning normally with no alarm or warning conditions, but you cannot use the web browser interface, first check the LED on the
rear panel next to the Ethernet connector. It will illuminate and blink as LAN
data are detected. If this LED is off check the cabling to the LA N. If the LED
remains off after verifying the LAN connection, contact Customer Service. If
the Ethernet LED is illuminated, check that you are using the correct IP
address. (See “Ethernet/Web Browser Control” on page 19.)
If the address is correct, but the interface still does not function, check your
computer’s IP settings and consult your network administrator for additional
help.
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DTV 701 User’s Manual
800015-01 Rev. D 38 wegener.com
Chapter 5 Customer Service
5.1 Warranty
The following warranty applies to all Wegener Communications products
including the DTV701 Broadcast Digital Television Processor:
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.
5.2 Technical Support
In the event that the unit should fail to perform as described, or if you need
help resolving problems with your DTV701, contact Wegener Communications Customer Service at (770) 814-4057, FAX (678) 624-0294, or E-mail service@wegener.com.
To return a product for service:
a) Obtain a Return Material Authorization (RMA) number by completing
and faxing a copy of the RMA Request Form to (678) 624-0294. You
may E-mail the same information instead to:
service@wegener.com
b) To help us identify and control returned units, plainly write the RMA
number on the outside of the product-shipping container. This will help
us return your unit to you as quickly as possible.
c) Return the product, freight prepaid, to the address below:
Service Department RMA# ________
Wegener Communications, Inc.
359 Curie Drive
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 the number above if you have any questions about obtaining service for your DTV701.
wegener.com 39 800015-01 Rev. D
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DTV 701 User’s Manual
800015-01 Rev. D 40 wegener.com
Index
A
AC Power 7
address
customer service 39
manual comments or questions5
air flow 14
alarm
loss of RF input 37
alarm and warning relays 8
alarm and warning system 32
ASI output 21
B
boot loader 30
boot-up 31
C
channel selection 21
channel selection screen 28
chassis
description 6
dimensions8
photograph 6
circuit overloading 14
cleaning 35
code swapping 30
connections
ac power 17
contact closures and relays 17
grounding 17
LAN 17, 20
output 17
RF input 17
connector details 17
control and status 21
controls and indicators 24
D
definitions 10
desktop use 15
dimensions 8
download procedure 32
E
earthing 14
email
customer service 39
regarding manual 5
Enter (ENT) button 25
environment, operating 8
equipment rack 15
Escape (ESC) button 25
Ethernet
connection and use 18, 20
LED27
port 7
expansion module slot 8
F
fax number
customer service 39
manuals 5
front panel
appearance 6
figure and description24
operation from 27
G
gateway 20
gateway selection screen 30
glossary of terms 10
grounding 14, 15, 17
H
I
initialization sequence 30
input setup screen 27
IP address 20
IP address screen 29
IP setup screen 29
L
labels, security 35
LAN connection 20
LCD 24
LED indicators 25, 36
LEDs
alarm 26
ASI OUT lock 26
ATSC lock 26
carrier level 26
carrier lock 26
LAN activity 26
rear-panel 27
warning 26
local control 19
M
maintenance 35
mechanical loading 14
mechanical specifications 8
Mounting 13
mounting
desktop 15
equipment rack 15
N
netmask 20
netmask selection screen 30
wegener.com 41 800015-01 Rev. D
help23
home screen 24, 27
DTV 701 User’s Manual
O
opening the chassis 9
output connections 17
output rate screen 29
P
phone number
customer service
39
pinouts 17
push buttons 25
Q
Q&A 23
R
rack mounting 15
rear panel
figure and connections
27
LEDs
Return Material
Authorization 39
17
RF input 17, 21
data rate
frequency range
impedance
LO leakage
signal level
symbol rate range
VSWR
7
7
7
7
7
7
7
RF standard screen 28
S
safety 9
serial ports 7
shutdown 30
signal processing 31
signal reception 31
size of DTV700 8
software
application
download procedure
30
32
specifications 7
status information 21
stream information 22
suggestions or comments 5
system setup 16
T
temperature, ambient
operating 14
terminal I/O 18
TMRA 14
troubleshooting 35
U
unpacking 13
W
warnings
carrier level out of range
no ATSC stream sync
36
36
warranty 39
web browser control 19, 20
800015-01 Rev. D 42 wegener.com
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