Wegener DTV742 User manual

DTV742
8VSB 4-Channel Multiplexer
User’s Manual

DTV742 User’s Manual
800057-01 Rev. B 2 wegener.com
A proven world leader in digital video, audio & broadcast data systems,
WEGENER’s management system is certified to ISO 9001:2000.
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 written permission of Wegener Communications, Inc.
The information contained herein is subject to change without notice. Revi-
sions may be issued to advise of such changes and/or additions.
 2004 Wegener Communications, Inc. All rights reserved.
WEGENER, COMPEL CONTROL, and DTV742 are trademarks of
WEGENER Communications, Inc. All other trademarks are the property of
their respective owners.
Correspondence regarding this publication,
800057-01 Revision B
Second Edition: September 2004
should be forwarded to:
Wegener Communications, Inc.
Technology Park/Johns Creek
11350 Technology Circle
Duluth, GA 30097-1502
Phone: [phone]
Fax: [phone]
The Wegener DTV742 is approved under FCC Part 15B Class A, UL1950, and
CSA.

DTV742 User’s Manual
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Table of Contents
Chapter 1 General Information
1.1 Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 DTV742 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 1.1 DTV742 8VSB 4-Channel Multiplexer. . . . . . . . . . . 8
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 DTV742 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 1 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 Safety Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Glossary of Terms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 2 Glossary of Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 2 Installation
2.1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Location and Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3 DTV742 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 2.1 DTV742 System Setup . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 2.2 DTV742 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 3 DTV742 Connector Details . . . . . . . . . . . . . . . . . . . . . 17
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Terminal I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 3 Operation
3.1 Operation Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Ethernet/Web Browser Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Directly connected PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 4 DTV742 IP Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 5 PC IP Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
LAN Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3 Web Browser Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Control and Status Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 3.1 Control & Status Page . . . . . . . . . . . . . . . . . . . . . . . 21
Stream Info Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 3.2 Stream Info Page . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Unit Configuration Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 3.3 Unit Configuration Page . . . . . . . . . . . . . . . . . . . . . 25
Config In Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 3.4 Config In Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 6 DTV742 PID Group (Pidset) Addresses . . . . . . . . . . . 27

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Config Out (1, 2, 3, & 4) Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 3.5 Config Out 1 Page. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Q&A/Help Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 3.6 Q&A/Help Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4 DTV742 Controls and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 3.7 DTV742 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . 31
Liquid-crystal Display(LCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 3.8 Home Screen Example. . . . . . . . . . . . . . . . . . . . . . . 31
Push buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 3.9 DTV742 Push Buttons . . . . . . . . . . . . . . . . . . . . . . . 32
Front-panel LED Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 3.10 DTV742 LED Indicators . . . . . . . . . . . . . . . . . . . . 32
Table 7 LED Indicator Descriptions. . . . . . . . . . . . . . . . . . . . . 33
Rear-panel Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.5 Front-panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
View Alarms/Warnings screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Clear Errored Seconds screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Input Setup screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Program Status screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Front Panel Help Timeout screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
IP Setup screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Reset Unit screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Unit Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.6 Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Software Code Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Initialization Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Initialization Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.7 Transport Stream Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
RF Signal Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Input to Output Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
PSIP Structure and Program Selection . . . . . . . . . . . . . . . . . . . . . . . 42
3.8 Alarm/Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Alarm conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Warning conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.9 Software Upgrades. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Ethernet transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Serial port transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

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Chapter 4 Maintenance and Troubleshooting
4.1 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2 General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
No functions at all . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.3 Alarms and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Normal operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
ALARM: All inputs missing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
WARNING: Carrier level out of range . . . . . . . . . . . . . . . . . . . . . . 47
4.4 Trouble with Browser Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Chapter 5 Customer Service
5.1 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.2 Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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wegener.com 7 800057-01 Rev. B
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 DTV742 8VSB 4-Channel
Multiplexer, referred to throughout the manual as the DTV742.
NOTE: User interface details in this manual are based on application software
version 104.
The manual is divided into the following chapters:
1 General Information - a description of your DTV742, its functions and
specifications, and a glossary of terms
2 Installation - procedures and information for the correct and safe instal-
lation of your DTV742.
3 Operation - instructions on starting and operating your DTV742
4 Maintenance and Troubleshooting - information on maintaining your
DTV742 and resolving possible operating difficulties
5 Customer Service - our warranty and information on obtaining help
Please E-mail any suggestions or comments concerning this manual to
[e-mail]. 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.
Our Address:
Attn: Manuals
Wegener Communications, Inc.
Technology Park / Johns Creek
11350 Technology Circle
Duluth, GA 30097-1502
Our Fax Number:[phone]

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1.2 DTV742 Overview
The DTV742 8VSB 4-Channel Multiplexer (Figure 1.1) receives VHF/UHF
broadcast HDTV signals from four independent inputs and provides four out-
put ASI streams for connection to cable-system QAM modulators or channel
groomers. It accepts broadcast or CATV 8VSB or QAM signals on the tuner
inputs and produces ASI MPEG transport stream outputs.
Physical
Description The DTV742 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 3.4 DTV742 Controls and Indicators on page 31). Ports that
allow connection to power, incoming signal, and peripheral devices are located
on the rear panel.
Figure 1.1 DTV742 8VSB 4-Channel Multiplexer
Features Your DTV742 has the following features:
• Four ATSC 8VSB RF input ports (F connector),
• Four ASI MPEG transport stream outputs (BNC connector),
• Lock and tracking of PCR information for all program streams,
• One Ethernet TCP/IP control interface (RJ-45 connector),
• One asynchronous data input/output (DB-9 connector), and
• One expansion slot.
• SNMP control and monitoring
• Storage of ten user-defined configurations

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1.3 DTV742 Specifications
Table 1: Technical Specifications
Characteristic Specification
INPUT AC POWER
Voltage 90 to 132 Vac and 175 to 264 Vac auto-detect/selected
Frequency 50/60 Hz ± 2%
Power Consumption <43 Watt
RF
Input Frequency Range 53 to 810 MHz
Symbol Rate 10.76 Msps
Input Data Rate 19.393 Msps
Input Signal Level -80 to -20 dBm
Input Impedance <3.0:1 in 75Ωsystem
LO Leakage at Input -63 dBm maximum
SERIAL PORT
Standard RS-232
Handshaking None
Service Software download
Baud Rate 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)
SNMP 2c MIB available (contact Customer Service, see page 49)
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 C, NC, NO, and Common available on connector
Rating 30Vdc open circuit, 100 mA max current closed

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1.4 Safety Summary
The DTV742 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 DTV742:
Do not open the DTV742’s chassis cover.
EXPANSION MODULE SLOT for future use
MECHANICAL
Height 1 std. RU (1.75 inches nominal) (44.5 mm)
Width EIA std. 19-inch mounting (482.6 mm)
Depth 13.5 inches (342.9 mm)
Weight 10.3 lb (4.67 kg)
Expansion Module Slots 1 each - 2.5"W x 1.375"H x 7"D on rear panel
ENVIROMENTAL
Use Indoor
Altitude Up to 2000 meters
Temperature Range 0° C to +50° C Operating
-20° C to +70° C Storage
Cooling Internal fan
Relative Humidity (max.) 80% for temperatures up to 31° C decreasing linearly to
50% relative humidity at 40° C.
Table 1: Technical Specifications
Characteristic Specification

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1.5 Glossary of Terms and Abbreviations
Table 2: Glossary of Terms
Term Definition
AC Alternating current
Alarm A condition or notification of a condition that prevents your DTV742 from performing
properly
Application Soft-
ware
The main host software which sets up the unit hardware, runs the process of acquiring
transport stream sources, sets up and monitors the demodulation and multiplexing pro-
cesses, monitors unit operations, and provides interfaces with the network and local users
ASI (or DVB-ASI) An “asynchronous” bit-serial physical interface for Transport Streams; Transmitting
and receiving functions are designed such that the time relationships between all pack-
ets and their timing references are unchanged.
ATSC Advanced Television Systems Committee - sets standards for standard definition and
high definition television in the U.S. Sometimes used to mean the HDTV standards
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-
gramming code
IEEE Institute of Electrical and Electronics Engineers
LAN Local area network; Your DTV742 may be connected to an Ethernet LAN.
LCD Liquid crystal display; The front-panel text screen on your DTV742 is a liquid crystal
display.
LED Light-emitting diode; The front-panel indicator lights on your DTV742 are LEDs.
Mbps, kbps Megabits per second or kilobits per second - units of data transport rate
MIB Management Information Base - the database of object definitions
MPEG Moving Picture Experts Group - refers to the method of video compression established
by this group
NVRAM Non-volatile memory; this memory is 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. This table associates Program numbers to the PIDs bearing the associated
program’s PMT.

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PCR Program Clock Reference - a time-base signal used to synchronize the DTV742's tim-
ing to the MPEG encoder for that program. Multiple programs may share a PCR,
depending on the multiplexer used to create the final transport stream.
PID Packet Identifier - the unique transport stream packet identifier assigned to each constit-
uent 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 Information Protocol - a method for transporting digital television
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 which its variables, state information, and
messages are stored. RAM is also used to designate the volatile storage used by the
transport demux and decompression devices.
RF Radio frequency
SNMP Simple Network Management Protocol - A network protocol used to manage TCP/IP
networks. This protocol provides functions that enable access to data objects whose
definitions are located in the MIB.
TMRA Maximum Recommended Ambient Temperature - the highest operating temperature for
which the unit is rated
Transport Stream
(or MPEG Trans-
port Stream)
A multiplex of several data streams, each of which is borne in transport packets, 188-
byte blocks containing a sync word, header information (including a PID), and payload
data. This multiplex includes PSI data tables, programs, padding in the form of null
packets, and floating PIDs such as those used by COMPEL network control.
Table 2: Glossary of Terms
Term Definition

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Chapter 2 Installation
This chapter provides instructions on unpacking, mounting, and connecting
your DTV742 as well as connector information including detailed pinouts.
2.1 Unpacking and Inspection
Carefully unpack the unit and its ac power cord and inspect 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 pack-
age contents carefully for important documents and materials.
NOTE: Please save the packing materials and original shipping containers in
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.
2.2 Location and Mounting
The DTV742 should be located indoors and may be mounted in a standard,
19-inch equipment rack within one standard RU.
WARNING
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.

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DANGER
To avoid damage to this and other equipment, 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 DTV742.
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 equipment should be maintained. Particular
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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Rack
Mounting Your DTV742 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 DTV742 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.
WARNING
Locate the DTV742 and its cables to avoid impacts, spills, and pulling cables
and to ensure sufficient air flow. Failure to locate the DTV742 in a proper
environment may result in damage to the equipment.

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2.3 DTV742 Connections
Figure 2.1 DTV742 System Setup shows placement of the DTV742 in a basic
system setup. Multiple RF inputs may be split from a single antenna or sepa-
rate antennas may be used. Although the figure shows only one antenna con-
nection, each enabled RF input must be connected to an antenna or splitter.
Figure 2.2 DTV742 Rear Panel illustrates details of the DTV742’s rear panel.
Figure 2.1 DTV742 System Setup
Figure 2.2 DTV742 Rear Panel
Before applying power, make the following connections to your DTV742
(refer to Table 3 for connector details):
a) Connect the chassis grounding screw to an earth ground before
connecting the power cord to the unit.
b) Connect the ATSC 8VSB signals from your antenna(s) to the
DTV742's RF IN ports(1, 2, 3, and 4).
c) Connect your downstream equipment to the ASI OUT 1, 2, 3, or 4 ports
as desired.
d) Connect your LAN line to the DTV742’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 DTV742’s IEC
receptacle and to a 90 to 132 Vac source.

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Table 3: DTV742 Connector Details
Designation Connector Type Pin
Number Signal Name
115/230 Vac Power Male IEC receptacle AC LINE IN
RF In 1 female F RF IN 1
RF In 2 female F RF IN 2
RF In 3 female F RF IN 3
RF In 4 female F RF IN 4
ASI Out 1 female BNC J4 ASI OUT 1
ASI Out 2 female BNC J6 ASI OUT 2
ASI Out 3 female BNC J8 ASI OUT 3
ASI Out 4 female BNC J9 ASI OUT 4
Ethernet LAN female RJ-45 J7-1
J7-2
J7-3
J7-4
J7-5
J7-6
J7-7
J7-8
EN OUT +
EN OUT -
EN IN +
NC
NC
EN IN -
NC
NC
Terminal female DB-9 J1A-1
J1A-2
J1A-3
J1A-4
J1A-5
J1A-6
J1A-7
J1A-8
J1A-9
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)
Relays female DB-9 J1B-1
J1B-2
J1B-3
J1B-4
J1B-5
J1B-6
J1B-7
J1B-8
J1B-9
not used
not used
WARNING COM
ALARM COM
GND
WARNING NO
ALARM NO
WARNING NC
ALARM NC (closes on alarm condition or
power failure)

DTV 742 User’s Manual
800057-01 Rev. B 18 wegener.com
Ethernet An Ethernet 10BaseT/100BaseT port is included and, along with an HTML
browser, is the primary user interface. The unit has a URL which is assigned
via the front panel. The “home” page can then be accessed via the Ethernet port
and an attached computer by entering the unit’s URL (web address) in your
browser’s address field. From this page, you can select desired channels and
monitor unit status.
SNMP MIB is available. Contact Customer Service (see page 49) for assis-
tance.
Terminal I/O The Terminal serial port is configured to 115.2k, N, 8, 1. The Terminal device
is used for factory testing and debugging of the DTV742. This I/O is a basic,
VT100-like emulation. User input text strings that are terminated in carriage-
returns prompt all I/O. The terminal should be set to local echo ON because the
DTV742 only echoes a carriage-return/linefeed and then a ‘>’ prompt after
entry of a command-line terminated in carriage-return.

wegener.com 19 800057-01 Rev. B
Chapter 3 Operation
This chapter contains detailed operating instructions that will guide you in the
efficient use of your DTV742. The following sections address:
• Operation Overview
• Ethernet/Web Browser Setup
• DTV742 Controls and Indicators
• Front-panel Operation
• Initialization
• Transport Stream Processing
• Alarm/Warning System
• Software Upgrades
3.1 Operation Overview
The DTV742 contains four RF tuners and four multiplexers in a single chassis.
Programs from the four tuners are selected for processing. Each ASI output has
its own multiplexer which selects programs from any one or all of the tuners. A
given program may be included in one or more of the output ASI streams.
The unit is controlled primarily through the Ethernet connector using a web
browser. Limited control is available from the front-panel LCD/keypad. All
settings may be presumed to be retained through power cycling unless other-
wise 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 Setup
The DTV742’s primary user interface is from a web browser using the rear-
panel Ethernet LAN connection. An HTML script interface allows 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
Table 4: DTV742 IP Setup) which must be established from the front panel.
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 DTV742’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.

DTV 742 User’s Manual
800057-01 Rev. B 20 wegener.com
Perform the DTV742 and PC IP Setups as shown in Table 4 and Table 5.
Addresses other than those listed may be used if they are compatible. Consult
your network administrator if you have questions.
LAN
Connection For LAN connection, attach the DTV742’s Ethernet port to the LAN using a
normal RJ-45 cable (8 pins). Set the DTV742 IP Address, Netmask, and Gate-
way as directed by your network administrator. Use any PC on the LAN to
connect to the DTV742 using the web browser instructions below.
NOTE: Each unit on the network must have a unique address.
3.3 Web Browser Control
Getting
Started 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 DTV742.
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 DTV742’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 DTV742 Control and Status screen will appear. You may also select either
the Stream Info, Unit Configuration, Config In, Config Out (1 through 4), or
Q&A/Help pages at any time by clicking their respective tabs at the top of the
screen. The following paragraphs detail the use of each of these pages.
Table 4: DTV742 IP Setup
Parameter Setting
IP Address 172.016.100.020
Netmask 255.255.000.000
Gateway 000.000.000.000
Table 5: PC IP Setup
Parameter Setting
IP Address 172.016.100.001
Subnet Mask 255.255.000.000