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Related Manuals for Wegener DTV742
Summary of Contents for Wegener DTV742
- Page 1 DTV742 8VSB 4-Channel Multiplexer User’s Manual...
- Page 2 Second Edition: September 2004 should be forwarded to: Wegener Communications, Inc. Technology Park/Johns Creek 11350 Technology Circle Duluth, GA 30097-1502 Phone: 770-814-4000 Fax: 770-497-0411 The Wegener DTV742 is approved under FCC Part 15B Class A, UL1950, and CSA. 800057-01 Rev. B wegener.com...
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Page 3: Table Of Contents
1.3 DTV742 Specifications ........9... - Page 4 Figure 3.6 Q&A/Help Page ......30 3.4 DTV742 Controls and Indicators......31 Figure 3.7 DTV742 Front Panel .
- Page 5 DTV742 User’s Manual Chapter 4 Maintenance and Troubleshooting 4.1 Maintenance..........45 4.2 General Troubleshooting .
- Page 6 DTV742 User’s Manual This page intentionally blank 800057-01 Rev. B wegener.com...
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Page 7: Chapter 1 General Information
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. -
Page 8: Dtv742 Overview
It accepts broadcast or CATV 8VSB or QAM signals on the tuner inputs and produces ASI MPEG transport stream outputs. Physical The DTV742 is housed in a standard, rack-mountable chassis. Its front panel Description provides a user interface through an LCD, eight LEDs, and six push buttons (see section 3.4 DTV742 Controls and Indicators on page 31). -
Page 9: Dtv742 Specifications
DTV 742 User’s Manual 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 Input Frequency Range 53 to 810 MHz Symbol Rate 10.76 Msps... -
Page 10: Safety Summary
80% for temperatures up to 31° C decreasing linearly to 50% relative humidity at 40° C. 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. -
Page 11: Glossary Of Terms And Abbreviations
Institute of Electrical and Electronics Engineers Local area network; Your DTV742 may be connected to an Ethernet LAN. Liquid crystal display; The front-panel text screen on your DTV742 is a liquid crystal display. Light-emitting diode; The front-panel indicator lights on your DTV742 are LEDs. - Page 12 Term Definition 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.
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Page 13: Chapter 2 Installation
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. - Page 14 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.
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Page 15: Rack Mounting
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. -
Page 16: Dtv742 Connections
DTV 742 User’s Manual 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. -
Page 17: Table 3 Dtv742 Connector Details
DTV 742 User’s Manual Table 3: DTV742 Connector Details Designation Connector Type Signal Name Number 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... -
Page 18: Ethernet
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. -
Page 19: Chapter 3 Operation
There are two basic methods of using the Ethernet connection – with a directly connected PC or with a PC connected through a LAN. Directly For control from a local PC, attach the DTV742’s Ethernet port to the Ethernet connected PC network connector on the PC using a crossover RJ-45 cable (8 pins). -
Page 20: Lan Connection
DTV 742 User’s Manual 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. Table 4: DTV742 IP Setup... -
Page 21: Control And Status Page
Figure 3.1 Control & Status Page Control The first item on the control side is the serial number of the DTV742 unit and the version number of the installed application software. Below this are the Inputs, Outputs, and Control sections. - Page 22 RF input. ASI output information includes the output data rate, the TSID, and the occu- pied bandwidth of each of the four ASI outputs (ASI Output 1 through ASI Output 4). 800057-01 Rev. B wegener.com...
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Page 23: Stream Info Page
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 DTV742’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). -
Page 24: Unit Configuration Page
Load button. As soon as the load but- ton is pressed, the selected configuration is loaded and those settings immediately become the active output characteristics. This feature allows quick changes of multiplex characteristics between predefined settings. 800057-01 Rev. B wegener.com... -
Page 25: Figure 3.3 Unit Configuration
DTV 742 User’s Manual Figure 3.3 Unit Configuration Page wegener.com 800057-01 Rev. B... -
Page 26: Config In Page
RF inputs. The user may easily view these programs when selecting programs to be included in the multiplexers. Figure 3.4 Config In Page 800057-01 Rev. B wegener.com... -
Page 27: Table 6 Dtv742 Pid Group (Pidset) Addresses
After all desired programs have been selected, click Submit to activate your selections. After the Config In has been established, the output configurations for each of the four ASI outputs may be set up. Table 6: DTV742 PID Group (Pidset) Addresses PID Group PID Addresses 0x020 to 0x02f... - Page 28 DTV 742 User’s Manual Table 6: DTV742 PID Group (Pidset) Addresses PID Group PID Addresses 0x110 to 0x11f 0x120 to 0x12f 0x130 to 0x13f 0x140 to 0x14f 0x150 to 0x15f 0x160 to 0x16f 0x170 to 0x17f 0x180 to 0x18f 0x190 to 0x19f...
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Page 29: Config Out (1, 2, 3, & 4) Page
3 is changed to output program 1 and input pro- gram 2 is kept as program 2. Even though the program number is unchanged, it must be entered in the Program box. wegener.com 800057-01 Rev. B... -
Page 30: Q&A/Help Page
ASI output or remove one or more programs from the output. Q&A/Help A list of questions and answers about operating your DTV742 is available on Page the Q&A/Help page (Figure 3.6 below). Click the Q&A/Help tab to display this page. -
Page 31: Dtv742 Controls And Indicators
Liquid- The DTV742’s 2-line by 20-character LCD indicates unit status and prompts crystal for and reflects user input. Here, you will see the DTV742’s "home screen" Display(LCD) (the default LCD screen, see Figure 3.8 below) which rotates through data from each of the four RF inputs. The channel number, modulation type (8VSB, 64QAM, or 256QAM), signal-to-noise ratio, and errored seconds are displayed for each input. -
Page 32: Push Buttons
Push buttons The six push buttons (shown below in Figure 3.9) are your means of com- manding the DTV742 from the front panel. The four arrow buttons allow navi- gation through the menu screens and enable character selection when editing user-input fields. -
Page 33: Rear-Panel Indicators
Off Not receiving parameter-change commands Rear-panel Two LED indicators on the rear panel give Ethernet status: Indicators ACT – Amber LED: flashes to indicate LAN activity. LAN – Green LED: ON for 100baseT, OFF for 10baseT. wegener.com 800057-01 Rev. B... -
Page 34: Front-Panel Operation
DTV 742 User’s Manual 3.5 Front-panel Operation The DTV742 may be set up and controlled from the front panel as follows: NOTE: From any screen, pressing the ESC key repeatedly will return you to the Home Screen. Home screen The Home screen alternates between the screens shown below (four seconds per screen). -
Page 35: View Alarms/Warnings Screen
Press the ENT to clear the errored seconds counter (for all RF inputs). Press the key to go to the Input Setup screen. Press the key to go to View Alarms/Warnings. Press the ESC key to go to the Home Screen. wegener.com 800057-01 Rev. B... -
Page 36: Input Setup Screen
Press ENT to enable or disable the RF tuner selecting ON or OFF with the key. Press the key to go to the Channel Number screen. Press the ESC key to return to the second-level Input Setup screen. 800057-01 Rev. B wegener.com... -
Page 37: Program Status Screen
Press the ENT key to view the third-level program status screen for this input (1). Press the key to go to the next input (2, 3, and 4). Press the ESC key to return to the Program Status screen. wegener.com 800057-01 Rev. B... -
Page 38: Front Panel Help Timeout Screen
Press the ENT key to go to IP Address Selection. Press the key to go to Reset Unit Screen. Press the key to go to Front Panel Timeout. Press the ESC key to go to the Home Screen. 800057-01 Rev. B wegener.com... - Page 39 Press the ENT key and then press the arrow keys to change the Gateway. Press the ENT key to confirm the selection or ESC to cancel changes. Press the key to go to Netmask Selection. Press the ESC key to go to IP Setup. wegener.com 800057-01 Rev. B...
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Page 40: Reset Unit Screen
Press ESC to QUIT Press ENT to enable a TFTP through Ethernet software upgrade. Press ESC to quit and continue booting. Unit Simply remove power to the unit to shut down your DTV742. No special pro- Shutdown cedure is required. 800057-01 Rev. B... -
Page 41: Initialization
At power up, the boot loader software executes first. It performs a test of RAM Sequence and then relocates itself for further execution from there. (See 3.9 Software Upgrades on page 43 for instructions on putting the DTV742 into serial com- mand mode.) During boot-up, the following screens appear in sequence on the LCD:... -
Page 42: Transport Stream Processing
Stream borne in the carrier will be passed to the ASI output. Input to The DTV742 has four RF ATSC inputs that the unit processes. Programs are Output passed through to the selected ASI output. A program or programs from one Processing RF input may be routed to one or more ASI outputs. -
Page 43: Software Upgrades
Place the new application code (dtv742.cf) in a separate folder specifically for this purpose. (Note that only one copy of the DTV742.cf file is allowed in this directory. If you have a new code revision, DTV742_102.cf for example, first delete the current copy of DTV742.cf. -
Page 44: Serial Port Transfer
X-Modem). If using Tera Term, select send file and check the binary checkbox. f) The file to send is the latest version of the DTV742.cf file. (Using serial port transfer, you may select the DTV742_xxx.cf file without renaming it to DTV742.cf.) -
Page 45: Chapter 4 Maintenance And Troubleshooting
If you are experiencing any difficulties, first check the LCD and LED indica- tors on the DTV742 to determine if any warnings or alarms are active. See Table 7: LED Indicator Descriptions on page 33 for descriptions of LED states. -
Page 46: Alarms And Warnings
Normal RF Input and ASI Output Locked - The LEDs are shown here reflecting the operation DTV742 in normal operation with no Alarms (more than one RF input may be locked at a given time): ALARM: Video is lost when incoming signal is lost. The ALARM LED lights if all RF All inputs inputs are missing. -
Page 47: Warning: Carrier Level Out Of Range
Ethernet LED is illuminated, check that you are using the correct IP address. (See “Ethernet/Web Browser Setup” 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. wegener.com 800057-01 Rev. B... - Page 48 DTV 742 User’s Manual This page intentionally blank 800057-01 Rev. B wegener.com...
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Page 49: Chapter 5 Customer Service
DTV742 8 VSB 4-Channel Multiplexer: 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. - Page 50 DTV 742 User’s Manual This page intentionally blank 800057-01 Rev. B wegener.com...