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
wegener.com 3 800057-01 Rev. B
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

DTV742 User’s Manual
800057-01 Rev. B 4 wegener.com
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

DTV742 User’s Manual
wegener.com 5 800057-01 Rev. B
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

DTV742 User’s Manual
800057-01 Rev. B 6 wegener.com
This page intentionally blank

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]

DTV 742 User’s Manual
800057-01 Rev. B 8 wegener.com
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

DTV 742 User’s Manual
wegener.com 9 800057-01 Rev. B
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

DTV 742 User’s Manual
800057-01 Rev. B 10 wegener.com
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