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Wegener UNITY4650 User Manual

Digital media receiver/decoder
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UNITY4650
Digital Media Receiver/Decoder
User's Manual

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Summary of Contents for Wegener UNITY4650

  • Page 1 UNITY4650 Digital Media Receiver/Decoder User’s Manual...
  • Page 2 2004 Wegener Communications, Inc. All rights reserved. WEGENER , COMPEL CONTROL , and UNITY4650 are trademarks of WEGENER Communications, Inc. All other trademarks are the property of their respective owners.
  • Page 3 Unity 4650 User’s Manual wegener.com 800034-01 Rev. A...
  • Page 4 Unity 4650 User’s Manual This page intentionally blank 800034-01 Rev. A wegener.com...

  • Page 5: Table Of Contents

    Table of Contents Chapter 1 General Information 1.1 Manual Overview ........7 1.2 U4650 Overview .
  • Page 6 Unity 4650 User’s Manual 3.2 Operation from Front Panel ....... . 40 Front-panel layout .

  • Page 7: Chapter 1 General Information

    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: (770) 497-0411 wegener.com...

  • Page 8: U4650 Overview

    Unity 4650 User’s Manual 1.2 U4650 Overview Functional The Wegener Model Unity 4650 Digital Media Receiver/Decoder is a fully DVB- Description compliant satellite video IRD. The U4650 receives an L-band RF carrier from an external LNB (or, if configured as a decoder, accepts ASI transport from a terres- trial source), extracts the MPEG transport stream, and provides the decompressed program content to analog audio/video and (optional) digital audio/video outputs.

  • Page 9: U4650 Specifications

    Unity 4650 User’s Manual 1.3 U4650 Specifications Table 1: Technical Specifications Characteristic Specification POWER Voltage 90-132 or 175-264 VAC auto-detect/selected Frequency 60/50 Hz 2% Consumption With full LNB DC load, PRO option, & QPSK receiver card: 30 W typical power dissipation 45 VA typical line loading Table 2: Transport In Options TRANSPORT IN OPTIONS...
  • Page 10 Unity 4650 User’s Manual Table 1: Technical Specifications Characteristic Specification COMPOSITE VIDEO OUTPUT (meets R5250C "Short Haul") Output Level 1.0 V , ± 2% Output Impedance Multiburst NTSC: From 0.5 to 4.2 MHz: ±0.3 dB PAL-B: From 0.5 to 4.8 MHz: ±0.3 dB Differential Gain 2 IRE...
  • Page 11 Unity 4650 User’s Manual Table 1: Technical Specifications Characteristic Specification AUDIO OUTPUT Output Level-MAX PPL +24.0 dBm into 600 ohms @ 0 dB attenuation (+18.0 dBm is optional) Output level adjust range 0 to 20 dB attenuation in 2 dB steps from Output Levels above Output Impedance Balanced: <...
  • Page 12 Unity 4650 User’s Manual Table 1: Technical Specifications Characteristic Specification TEST MODES Audio/Video Port 1&2 audio test tones: pulsing 1 kHz tone @ ~ PPL -10dB Video test pattern: 75% Color bars (on composite video only) Signals are for system connection verification and are not use- ful for measurements.
  • Page 13 Unity 4650 User’s Manual Table 1: Technical Specifications Characteristic Specification ALARM/CUEING RELAYS One relay dedicated to indicate unit ALARMS and two relays dedicated to user control (such as cueing). The ALARM relay automatically de-energizes for alarm conditions so that power loss to the unit indicates as an alarm.

  • Page 14: Table 2 Transport In Options

    Unity 4650 User’s Manual Table 2: Transport In Options Characteristic Specification DVB-QPSK RECEIVER OPTION (No RF Switch) RF INPUT Input Impedance 75 unbalanced Input VSWR, 75- system < 2.1:1 (9.0 dB R.L. min), 950-1450 MHz < 3.0:1 (6.0 dB R.L. min), 1450-2150 MHz Surge Resistance Guaranteed survival from up to 10 direct-coupled 8kV dis- charges (per IEC 801-2)
  • Page 15 Unity 4650 User’s Manual Table 2: Transport In Options Characteristic Specification LNB DC POWER (supplied on RF center conductor) Activation User- or network-controlled selectable: ON or OFF Voltage ~ +18.7 VDC nominal at no loading, +18.0 VDC min. at max loading Current (full load) 350 mA max...
  • Page 16 Unity 4650 User’s Manual Table 2: Transport In Options Characteristic Specification RF TUNING Input Frequency Range 950 to 2150 MHz LO Leakage at Input -60 dBm Symbol-rate Range 1 to 30 Msps (may be limited by Transport Rate limits) Tuning Resolution 10 kHz Input Signal Level Range -25 to -65 dBm...
  • Page 17 Unity 4650 User’s Manual Table 2: Transport In Options Characteristic Specification Max E @ Quasi-error-free threshold 1. DVB-QPSK QPSK R=1/2: 4.5 dB, (less than one uncorrected error-event per QPSK R=2/3: 5.0 dB, hour) QPSK R=3/4: 5.5 dB, QPSK R=5/6: 6.0 dB, QPSK R=7/8: 6.4 dB 2.
  • Page 18 Unity 4650 User’s Manual Table 2: Transport In Options Characteristic Specification TURBO PSK RECEIVER WITH 4-PORT SWITCH OPTION RF SWITCH INPUT 4-port, single-throw switch Input Impedance 75 unbalanced Isolation, port-to-port > 45 dB, 950-1450 MHz > 40 dB, 1450-2150 MHz Input VSWR, 75- system, selected port <...

  • Page 19: Safety Summary

    Unity 4650 User’s Manual 1.4 Safety Summary The U4650 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 U4650: Do not open the U4650 chassis cover. The U4650 incorporates security labels over some of the screws.
  • Page 20 Unity 4650 User’s Manual Table 3: Glossary of Terms Term Definition Audio Language Legacy 3-character MPEG descriptor applied to a program’s audio streams. It was origi- Descriptor nally allocated to designate languages, but is now used for generic identification. Automated Recovery The mechanism used when the U4650 is unable to acquire a valid transport stream, loses (or Recovery) network control or detects an invalid control stream, or is unable to deliver the required...
  • Page 21 Unity 4650 User’s Manual Table 3: Glossary of Terms Term Definition Extended windows Where decompression of 4:2:2 chroma sampled MPEG video is supported, the original encoder may be set to compress Vertical Blanking Interval (VBI) data in the same manner as the video in the active picture area.
  • Page 22 Unity 4650 User’s Manual Table 3: Glossary of Terms Term Definition Network Protection A non-volatile setup parameter whose value is “Shared” or “Protected” (or “not Shared”). Mode Similarly, each network control stream has a “Share” status field as part of the COMPEL packet framing.
  • Page 23 Unity 4650 User’s Manual Table 3: Glossary of Terms Term Definition Program Number A numerical code representing a program. PSI Tables A group of information-bearing tables, each borne by well-known PIDs, regularly trans- mitted in the transport stream. See also “PAT” and “PMT”. Also, ISO 13818-1 gives a thorough description of these and other Tables.
  • Page 24 Unity 4650 User’s Manual Table 3: Glossary of Terms Term Definition Transport Loss, Loss of transport stream, usually because of carrier-tracking loss, for a time period Signal Loss, or defined by a non-volatile factory setting. Transport stream can only be "lost" if the IRD Carrier Loss has first passed the "Verified Transport"...

  • Page 25: Chapter 2 Installation

    Chapter 2 Installation This chapter provides instructions on unpacking, mounting, and connecting your U4650 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.
  • Page 26 Unity 4650 User’s Manual 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.

  • Page 27: Rack Mounting

    Unity 4650 User’s Manual Rack Your U4650 is sized at a single RU and will fit an EIA-standard, 19-inch-wide Mounting 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.

  • Page 28: U4650 Connections

    Unity 4650 User’s Manual 2.3 U4650 Connections Figure 2.1 shows the connector locations on the U4650 rear panel. See Figure 2.2 for Transport In Options for this slot. Figure 2.1 U4650 Rear-panel Connector Locations 800034-01 Rev. A wegener.com...

  • Page 29: Figure 2.2 U4650 Transport In Options

    Unity 4650 User’s Manual Figure 2.2 U4650 Transport In Options below shows rear-panel views of the five available receiver modules. Figure 2.2 U4650 Transport In Options wegener.com 800034-01 Rev. A...

  • Page 30: Table 4 Rear-Panel Connectors

    Unity 4650 User’s Manual Table 4: Rear-panel Connectors below lists the U4650 rear-panel connectors, their types and pinout information. See Interpreting LEDs on page 45 for descriptions of rear-panel indicators. Table 4: Rear-panel Connectors Connector Type Signal Name Designation ALARM/CUEING 10-pin male header OK (COM closes here when OK) (mates to removable...
  • Page 31 Unity 4650 User’s Manual Table 4: Rear-panel Connectors Connector Type Signal Name Designation SERIAL CONTROL RS232, 9-pin D DCD (internally pulled to +5V) female jacks RxD (data output) TxD (data input) DTR (not connected) DSR (internally pulled to +5V) RTS (internally pulled to +5V, may be upgraded for handshaking) CTS (asserted ON, may be upgraded for handshaking)

  • Page 32: Table 5 Front-Panel Connectors

    Unity 4650 User’s Manual Table 4: Rear-panel Connectors Connector Type Signal Name Designation DVB-QPSK Transport In Option RF IN Type F coax jack L-band RF Input from external LNB (with LNB DC on center pin) RF OUT Type F coax jack Loop-thru RF output DVB-QPSK with 4-way RF Switch Transport In Option RF IN –...

  • Page 33: Serial Port Configuration

    Unity 4650 User’s Manual 2.4 Serial Port Configuration Device The U4650 has one external serial port. A “device” must be assigned once to assignments the serial port, but no “device” may be assigned more than once. In addition, more than one device may be assigned at one time but only one device which accepts input may be assigned.

  • Page 34: Device Handling

    Unity 4650 User’s Manual Device Terminal I/O - The Terminal device is used for command and control of the handling U4650. This I/O is a basic VT100-like emulation. All I/O is prompted by user- input text strings terminated in carriage-returns. The terminal, whether local or (via modem) remote, should be set to local echo ON.

  • Page 35: Installation Testing

    Unity 4650 User’s Manual Aux Data - The Aux Data device is defined to allow for async data streams to be carried within the transport stream and their raw payload output on an IRD serial port. The PID of these streams may or may not be assigned to a program number within a PMT.

  • Page 36: Audio/Video Check

    Unity 4650 User’s Manual Audio/video This test puts out a video test pattern and audio test tones to allow verification check of video and audio connections. The video pattern is vertical color bars. On Port 1, the audio is a slowly pulsing (triangle-wave) tone with a higher fre- quency on Right than on Left.

  • Page 37: Chapter 3 Operation

    Chapter 3 Operation This chapter provides an overview of Unity 4650 operation, details of controls and indicators, the alarm/warning system, and user interface details. 3.1 Theory of Operation Functional If an L-band receiver card is installed, the Unity 4650 accepts carriers in that summary band from an external antenna LNB and then demodulates and extracts the transmitted MPEG transport stream.

  • Page 38: Automated Recovery

    Unity 4650 User’s Manual Automated If unable to deliver required services to predetermined standards, or if unable recovery to detect a required network control stream (COMPEL ), the U4650 attempts to resume normal operation through a process called Automated Recovery. Referring to an internal, non-volatile list of "presets", the U4650 will attempt to restore either services or network control, depending on what caused the recovery.

  • Page 39: Figure 3.1 Unity 4650 Functional Block Diagram

    Unity 4650 User’s Manual Figure 3.1 Unity 4650 Functional Block Diagram wegener.com 800034-01 Rev. A...

  • Page 40: Operation From Front Panel

    Unity 4650 User’s Manual 3.2 Operation from Front Panel Front-panel The U4650 front panel (Figure 3.2) includes the layout following four main parts: a liquid crystal dis- play (LCD), six pushbuttons, eight LED indica- tors, and the front-panel audio and video monitor ports.

  • Page 41: Lcd Screen Relationships

    Unity 4650 User’s Manual LCD screen Figure 3.3 below shows LCD screen relationships from the top level down- relationships ward. These screens are structured in two dimensions, reflecting their relation- ships as peers, as parents, and as children of other screens. The up-and-down dimension represents the parent-child screen relationships (navigated with the ESC and ENT buttons).

  • Page 42: Figure 3.4 Unity 4650 Top-Level Screens

    Unity 4650 User’s Manual Figure 3.4 Unity 4650 Top-level Screens Recovery Abort (when applicable) •Allows user to abort a recovery in progress or abort the result of an auto- mated recovery - or - •Allows user to adopt a recovered setting as a new permanent setting Front-Panel Email (when applicable) Allows user to read and clear unread email sent by network control SW Download Status (when applicable)
  • Page 43 Unity 4650 User’s Manual Unit Status/History Allows user to access unit status and diagnostics. Typical items located under this menu include: 1.Current unit state 2.Signal Quality 3.Last commanded and last successful unit settings 4.Program Analysis 5.Local audio/video decompression history 6.Network control status/history 7.Current LAN settings 8.Unit internal temperature 9.Option module presence/status...

  • Page 44: Home And Default Screens

    Unity 4650 User’s Manual Home and The home screen appears on the LCD by default at boot up. During operation, default the user may return to the home screen at any time, from any location in the screens menu hierarchy, by pressing the Escape (ESC) button repeatedly (or pressing and holding it).

  • Page 45: Interpreting Leds

    Unity 4650 User’s Manual Interpreting Front panel LEDs LEDs Table 7: Front-panel LED Indicator Descriptions provides the meaning of the color and state of each LED. Figure 3.5 LED Indicators Table 7: Front-panel LED Indicator Descriptions Indicator Label Color and State* Meaning CARRIER GREEN constant...
  • Page 46 Unity 4650 User’s Manual Table 7: Front-panel LED Indicator Descriptions Indicator Label Color and State* Meaning GREEN constant A user cue relay is closed (energized). GREEN flutter During a user relay “pulse” activation on any relay. All user cue relays are open (de-energized). ALARM RED constant One or more current alarm indications.

  • Page 47: Front-Panel Audio Monitor

    Unity 4650 User’s Manual Genlock Status LEDs (rear panel) When the Digital A/V Pro Option is installed, there are two LEDs located to the left of the GENLOCK REF IN jack. Note that both LEDs are off if genlock is not enabled (or if the option is not installed): SYNC –...

  • Page 48: Operation From Local/Remote Terminal

    Unity 4650 User’s Manual 3.3 Operation from Local/Remote Terminal Overview and The following discussions apply to control by both the Terminal and Modem syntax devices. Once a user has fulfilled the password requirement for Modem access, the communication is identical to Terminal control. Commands listed in this section detail command syntax and action taken.
  • Page 49 Unity 4650 User’s Manual COMPEL-req: Values are REQ, NR, or GL. Forces COMPEL to be tempo- rarily required, not required, or left as normal global unit setting (respectively) when attempting this Preset during Recovery. tags-req:Values are REQ, NR, or GL. Forces Carrier ID Tags to be temporarily required, not required, or left as normal global unit setting (respectively) when attempting this Preset during Recovery.
  • Page 50 Unity 4650 User’s Manual APPSTAT Forces IRD to report the status of the two application storage spaces, showing current and backup application software (if any). A Local Control Command (available from the terminal regardless of "Local Control Enable/Disable" commands from the network). APPSWITCH Unloads the currently executing application software and, instead, loads and runs the backup software.
  • Page 51 Unity 4650 User’s Manual AUXPID [PID] PID: Selects the PID (in hex) for the Transport packets carrying the desired data stream. Must be ‘20’ to ‘1ffe’ inclusive. If PID is omitted, the current value is displayed. Sets the PID used for Aux Data extraction. CLRDIAG Clears all the volatile counts and statistics, as if the unit was reset.
  • Page 52 Unity 4650 User’s Manual DTMFTST [level] [tone] level: Integer between 0 and 100 inclusive. tone: Tone code (0-15 signifying digits 1-9,0,*,#,A-C). Volatile test command for DTMF output, if supplied. Tones will be output at the percentage of full-scale voltage indicated by level. If tone is supplied, then that tone is output continuously.
  • Page 53 Unity 4650 User’s Manual FORCERF port port:Either OFF or the numbers 1, 2, 3, or 4. Command to either disable or enable effective RF switch bypassing. If port is a number, then all subsequent carrier reception is sought at that RF feed port, regardless of the current Unit Setting.
  • Page 54 Unity 4650 User’s Manual GLPHASE phase phase: Integer between -180 and +180 inclusive. Command to adjust the subcarrier phase of genlocked composite video output, relative to the reference. The offset in degrees is set by the phase parameter, with the actual register values set for the nearest degrees of adjustment reso- lution.
  • Page 55 Unity 4650 User’s Manual LAN GATEWAY addr addr:IP address formatted as n1:n2:n3:n4 where n1, n2, n3, and n4 are integers between 0 and 255. Command sets the IRD’s static internet Gateway IP address. No protection is offered against entry of non-standard addresses (e.g. 0:0:0:0). Omitting the addr parameter shows the current static Gateway IP.
  • Page 56 Unity 4650 User’s Manual LAN SUBNET addr addr:IP address formatted as n1:n2:n3:n4 where n1, n2, n3, and n4 are integers between 0 and 255. Note that not all values can be legal. Command sets the IRD’s static subnet mask address. Command entries that do not assert legal IP address masks will be rejected.
  • Page 57 Unity 4650 User’s Manual MARGIN margin_offset margin_offset:Integer values between 0 and N in the form of x.x, representing dB (to tenths of a dB). N is defined by individual IRD specifications for every modulation/FEC combination. Command sets the Margin Warning point. This provides warning to local users that their Eb/No’s are approaching the error-threshold where system perfor- mance will collapse.
  • Page 58 Unity 4650 User’s Manual MUTE [source][source][source] [...] source: If no source is specified then video and all audios are selected. Source can be any of the following: ASI - to indicate the DVB-ASI transport output. V - to indicate Video. A[specifier] - To indicate Audio.
  • Page 59 Unity 4650 User’s Manual Configures communication parameters for any serial device. A Local Control Command (available from the terminal regardless of "Local Control Enable/ Disable" commands from the network). PERM [format] [pol/feed#] [carrier freq] [data rate] [FEC] [Tag Site] [pro- gram#] [label] format: If an RF input, one of the legal modulation formats: QPSK (for "DVB- QPSK"), 8PSK (for “DVB 8PSK”), TQPSK (for "Turbo-QPSK"), T8PSK (for...
  • Page 60 Unity 4650 User’s Manual PERMCH value value: Either the value of a settings table entry number OR the Channel Label of an entry, priority given to Label if any ambiguity. If an entry number, legal values range from 1 up to N (where N is number of Preset support this product). Unit Settings set to equal those in the Preset Table entry specified by value.
  • Page 61 Unity 4650 User’s Manual R type [page] type: Indicates the type of report as follows: Carrier Status Parameters Group Status Genlock system (if installed and applicable) MPEG PSI Status Network Controller Status Relay Status RTLOG - non-volatile log of last 10 “tuning” type commands Settings Status Settings Table Serial Port Configuration...
  • Page 62 Unity 4650 User’s Manual RD group group: Indicates group of status/diagnostic information to report, as follows: Audio service diagnostics Alarm/Warning status Conditional Access diagnostics Conditional Digital Program Insertion (DPI) Genlock system (if installed and applicable) IP/Ethernet diagnostics COMPEL network control diagnostics PRGMP Program mapping at ASI output Miscellaneous diagnostics...
  • Page 63 Unity 4650 User’s Manual Miscellaneous PRGMP Program mapping at ASI output Automated Recovery Carrier and RF Return Path Current Unit (“Perm”) Settings Serial Ports Application software maintenance Transport Stream processing Video service Expanded U4650 report on unit NV operating parameters. A Local Control Command (available from the terminal regardless of "Local Control Enable/ Disable"...
  • Page 64 Unity 4650 User’s Manual RPATH FROM domain domain:Legal string of keyboard characters in proper domain-name format (e.g. string1.string2.string3…) Domain name portion of “from” email address in Return Path reporting. A Local Control Command (available from the terminal regardless of "Local Control Enable/Disable"...
  • Page 65 Unity 4650 User’s Manual SAVEP [entry#] [channel_label] entry#: A Preset Table Entry number or the text, "PERM". If a preset entry, must be equal to number between 1 and N inclusive, where N is highest entry number. channel_label: Channel Label associated with a unit setting or a Preset Table entry.
  • Page 66 Unity 4650 User’s Manual SET [parameter] [value] SET TO [destination] [time] SET FROM [source] parameter: One of format, feed, freq [for “carrier freq”], rate [for “data rate”], FEC, tag [for “tag site”], prog [for “program”], margin [for “Eb/No margin warning zone”], aud1, or aud2 [for “descriptors assigned to audio ports 1 and 2”].
  • Page 67 Unity 4650 User’s Manual atten: Must be a numeric value for attenuation in dB. Legal values are given in individual IRD specifications. This programs the net audio attenuation, where ‘0’ gives 0dB attenuation (maximum level). If field omitted, attenuation remains unchanged on that audio port. The audio PES stream, with the language descriptor program, is decompressed in the port audio port, and then its components are routed to the Left and Right outputs according to route.
  • Page 68 Unity 4650 User’s Manual SETPEDEST xxx xxx: “E” for enable or “D” for disable. Enables or disables the “pedestal” setup, the addition of +7.5 IRE to the lumi- nance level of active NTSC video. A Local Control Command (available from the terminal regardless of "Local Control Enable/Disable"...
  • Page 69 Unity 4650 User’s Manual SP program program: Either an integer between 1 and 65,535 (representing a number) or an alphanumeric string (representing a name), preference being on a number to resolve ambiguity. Command changes selected program by Program Number (from PAT) or SDT descriptor.
  • Page 70 Unity 4650 User’s Manual TEST group value group:Mnemonic for a test group: Either RF, AV, DTMF, or REL. value:Parametric value which has meaning depending on the test group selected. Command to activate Installation Test Modes. A Local Control Command (available from the terminal regardless of "Local Control Enable/Disable" commands from the network).
  • Page 71 Unity 4650 User’s Manual VBI enable line field enable: Takes values of “E” or “D” for Enable and Disable respectively. line: Line # where VBI data is normally to be re-inserted. Values below 7 or above 22 are illegal. field: Field # where VBI data is normally to be re-inserted. Values are “1” or “2”...
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  • Page 73: Chapter 4 Maintenance And Troubleshooting

    Chapter 4 Maintenance and Troubleshooting 4.1 Maintenance Maintenance of the Unity 4650 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.

  • Page 74: No Audio Or Video Output

    Unity 4650 User’s Manual LEDS: ALARM ON and CARRIER OFF No audio or video output The U4650 is unable to lock to an RF carrier at the selected RF port: a) If the first front-panel alarm message is "No RF Signal", then: (1) either the outdoor antenna LNB is not operating or is not connected to the IRD at the selected RF port;...

  • Page 75: Alarms And Warnings

    Unity 4650 User’s Manual LEDS: ALARM and WARNING OFF If no alarms or warnings are shown, suspect a bad connection or mis-program- ming of the U4650. (Typically, if the U4650 is unable to present services, it should be showing Alarms or Warnings. However, the unit can be set not to indicate, even though this is not recommended.) If audio or video are missing, check at the front-panel monitor jacks.
  • Page 76 Unity 4650 User’s Manual Table 8: Alarm and Warning Descriptions LCD Alarm or Warning Meaning / Possible Cause Message ASI TS muted ASI Transport output has been muted per user or network command. Aud N bad PES data Requested audio PES stream for port N is invalid or cannot (N=audio port number) be decompressed or processed.
  • Page 77 Unity 4650 User’s Manual Table 8: Alarm and Warning Descriptions LCD Alarm or Warning Meaning / Possible Cause Message Bad Video PTS Excessive jumps or jitter in video PTS values. There may be a defective uplink encoder or mux. Cmd’d app SW switch COMPEL-commanded application software switch (to backup app software).
  • Page 78 Unity 4650 User’s Manual Table 8: Alarm and Warning Descriptions LCD Alarm or Warning Meaning / Possible Cause Message Lost COMPEL PID Data traffic at designated packet ID (PID) for COMPEL has been lost for more than two minutes. See "No COMPEL" indication.
  • Page 79 Unity 4650 User’s Manual Table 8: Alarm and Warning Descriptions LCD Alarm or Warning Meaning / Possible Cause Message No Def for mapping ASI transport output bears no program content because an Output Definition Table has not been loaded from the net- work.
  • Page 80 Unity 4650 User’s Manual Table 8: Alarm and Warning Descriptions LCD Alarm or Warning Meaning / Possible Cause Message PAT version changed Version number in Program Allocation Table has changed but no change to program lineup. PCR disappeared Formerly valid Program Clock Reference ceases to be received or becomes corrupt.
  • Page 81 Unity 4650 User’s Manual Table 8: Alarm and Warning Descriptions LCD Alarm or Warning Meaning / Possible Cause Message Ser pt N input fail Input buffer overflow on serial port N. Send device at (N=audio port number) uplink may be set too fast compared to IRD serial port device, especially if sending data constantly with only one stop bit.
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  • Page 83: Chapter 5 Customer Service

    Wegener Communications' obligation under this warranty is limited to repairing or, at Wegener Communications' option, replacing parts, subas- semblies, or entire assemblies. Wegener Communications shall not be lia- ble for any special, indirect, or consequential damages.
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  • Page 85: Appendix A Monitoring And Control Details

    Appendix A Monitoring and Control Details A.1 Basic Navigation Monitoring and control of the U4650 from the front panel is accomplished by first navigating to the appropriate screen for the desired function (see LCD screen relationships and LCD screen content on page 41 for screen structure and contents).

  • Page 86: Menu Screens

    Unity 4650 User’s Manual A.3 Menu Screens Menu screens are also read-only and display the menu name for a group of screens. For example, the Miscellaneous Setups screen is a menu screen. The child screens "beneath" a menu screen (reached by pressing ENT) may be any of the screen types (i.e.

  • Page 87: Parameter Screens

    Other Screens? (to return to the Home screen). Home? Hold In <ESC> first row: - information label UNIT LABEL: second row: - editable parameter Unity4650 after brief delay UNIT LABEL: UNIT LABEL: UNIT LABEL: Change? Press<ENTER> Home? Hold In <ESC>...
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  • Page 89 Index controlling the U4650 remotely ac power connector 31 cables cross supports 27 connecting to unit ad avail 19 routing of CUE LED 46 agency approvals 13 CARRIER LED 45 customer service 83 air flow for safe operation 26 CE certification 13 alarm changes to manual, definition...
  • Page 90 Unity 4650 User’s Manual front-panel audio monitor definition earthing 26 email indicators Eb/No,energy-per-bit noise functional description 8, 37 left arrow 40 density per hertz 20 light-emitting diodes elevated operating ambient 26 (LEDs) 21 e-mail address grounding 26 liquid crystal display customer service (LCD) 21 regarding manual...
  • Page 91 Unity 4650 User’s Manual PID 22 rack assembly, temperature of 26 opening the chassis 19 pinouts, connector 30 radiated emissions, operating ambient PMT 22 suppressing 25 temperature 26 polarity of alarm/cueing radio interference 25 operating temperature 13 relays 13 random access memory operation of the U4650 37 port specifications (RAM) 23...
  • Page 92 Unity 4650 User’s Manual service descriptor 23 supply circuit, connection transport stream 24 to 26 SERVICES LED 45 troubleshooting 73 support, technical 83 services, selectable 12 suppressing emissions 25 setting up the U4650 25 Underwriter Laboratories synchronization 22 shared status 22 (UL) listing 13 syntax, terminal command 48 shipping container 25...

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