Microwave Radio Communications SCM4000 Technical Reference Manual
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Microwave Radio Communications SCM4000 Technical Reference Manual

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Manual Part No. 400509-1
Rev. A February 2006
SCM4000
Single Carrier Modem
Technical Reference
Manual

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Table of Contents
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Summary of Contents for Microwave Radio Communications SCM4000

  • Page 1 SCM4000 Single Carrier Modem Technical Reference Manual Manual Part No. 400509-1 Rev. A February 2006...
  • Page 3 Quality Certification purchaser to the extent needed for their organization. No part of Microwave Radio Communications is certified to ISO 9001:2000. this material may be modified in any way, or published for resale, without the express written authorization of Microwave Radio Communications.
  • Page 4 Click on this icon to download your which is intended for connection to an external FREE copy of Adobe Acrobat conductor for protection against electric shock in Reader. case of a fault, or the terminal on a protective earth electrode. SCM4000 Technical Reference Manual Notices...

  • Page 5: Warranty Information

    Any description of equipment, whether in writing or made orally accordance with MRC specifications, or abuses other than by MRC or its agents, specification sheets, models, bulletins, SCM4000 Technical Reference Manual Notices...
  • Page 6 No warranties may be implied from any course of dealing or usage of trade. Buyer agrees that the exclusion of all warranties, other than those expressly provided herein, is reasonable. SCM4000 Technical Reference Manual Notices...

  • Page 7: Table Of Contents

    About This Manual - - - - - - - - - - - - - - - - - - - - - - - - i SCM4000 Modulator - - - - - - - - - - - - - - - - - - - - - 2-6...

  • Page 8: Table Of Contents

    Monitor Network Name - - - - - - - - - - - - - - - - - 3-133 SCM4000 Demodulator Menu Operations - - - - - - - 3-76 Monitor Service Name - - - - - - - - - - - - - - - - - - 3-134...

  • Page 9: Table Of Contents

    Chapter Overview - - - - - - - - - - - - - - - - - - - - - - - - - 8-1 Installing the SCM4000 - - - - - - - - - - - - - - - - - - - - - 5-2...

  • Page 10: Table Of Contents

    SCM4000 Demodulator/Decoder - - - - - - - - - - - - 8-5 Glossary - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1...

  • Page 11: Scm4000 Demodulator/Decoder

    Introduction Your SCM4000 will consist of one of the following configurations: • SCM4000 Modulator • SCM4000 Demodulator Chapter Overview • SCM4000 Modulator/Demodulator This chapter will introduce you to the Technical Reference • SCM4000 Modulator/Encoder Manual: what it covers, how it’s organized, and for whom it’s written.

  • Page 12: Glossary

    • SCM4000 Single Carrier Modem MPEG Encoder Option Repair Quick Reference Card (part no. 400510-3) Replacement Parts • SCM4000 Single Carrier Modem MPEG Decoder Option Quick Reference Card (part no. 400510-4) Theory of Operation Ordering Documentation Appendix A - Glossary...
  • Page 13 Calling for Service Supported Repairs MRC Technical Support is available 24 hours a day, 7 days a The SCM4000 Single Carrier Modem is designed to be compact, week. During regular business hours you can reach our expert rugged, and reliable.
  • Page 14 This page intentionally left blank. SCM4000 Operator’s Guide Introduction...
  • Page 15 System Integration support multiple configuration requirements with user-friendly Preset selections. SCM4000 Configurations The SCM4000 is ideal for microwave fixed links for Studio to SCM4000 Modulator Transmitter Links (STL), Transmitter to Studio Links (TSL), Inter- SCM4000 Demodulator City Relay (ICR) service, Electronic News Gathering (ENG), SCM4000 Modulator/ network distribution, satellite, and backhaul operations.
  • Page 16 Windows-based PC. • Available with an optional MPEG Encoder or Decoder. The rear panel of the SCM4000 contains the I/O connectors, the • Provides user control for functional parameters via front input power connector, the power switch, and a fuse.
  • Page 17 Figure 2-2: SCM4000 Front Panel View Figure 2-3: Modulator Rear Panel View T1/E1 IF OUT IF IN RS232/485 10/100 DS3/E3 DS3/E3 SMPTE SUM ALARM POWER IN AC Power FUSE Option DC Power POWER IN Option Figure 2-4: Demodulator Rear Panel Rear View...
  • Page 18 Figure 2-7: Demodulator/Decoder Rear View T1/E1 IF IN RS232/485 IF OUT 10/100 VIDEO AUDIO B AUDIO A SMPTE DS3/E3 DS3/E3 SUM ALARM POWER IN AC Power FUSE Option DC Power Demodulator Decoder Option Section Section POWER IN SCM4000 Operator’s Guide/Tech Ref Manual Product Description...
  • Page 19 2.2.3 Power Options For more details on installation of the SCM4000 in various applications, see the “Installation” Chapter on page 5-1 (part of The flexible architecture of the SCM4000 allows a number of the SCM4000 Technical Reference Manual only). options for the power source. The SCM4000 configurations can be ordered to operate on the following optional AC and DC 2.2.5...
  • Page 20 2.3.1 SCM4000 Modulator 2.3.2 SCM4000 Demodulator The SCM4000 Modulator block diagram is shown in Figure 2-8. The SCM4000 Demodulator block diagram is shown in Figure 2- Figure 2-8: SCM4000 Modulator Block Diagram Figure 2-9: SCM4000 Demodulator Block Diagram AC/DC E1/T1...
  • Page 21 2.3.4 SCM4000 Modulator/Encoder 2.3.3 SCM4000 Modulator/Demodulator The SCM4000 Modulator/Encoder block diagram is shown in The SCM4000 Modulator/Demodulator block diagram is shown Figure 2-11. Figure 2-10. Figure 2-11: SCM4000 Modulator/Encoder Figure 2-10: SCM4000 Modulator/Demodulator AC/DC POWER VIDEO AC/DC E1/T1 E1/T1 POWER...

  • Page 22: For More Information

    2.3.5 SCM4000 Demodulator/Decoder For More Information The SCM4000 Demodulator/Decoder block diagram is shown in Additional detailed technical information about the SCM4000 is Figure 2-12. contained in the SCM4000 Technical Reference Manual only. Specific topics contained in the Technical Reference Manual are...

  • Page 23: Overview Of Controls, Indicators And Connectors - - -

    SCM4000. Here are the topics Rear Panel Power Switch and Fuse The power switch is used covered. to control application of AC or DC power to the SCM4000, SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation...
  • Page 24 Alphanumeric Display The alphanumeric display provides the the AC/DC power connector. user interface to enable local control of the state of the SCM4000 POWER LED The green POWER LED is illuminated when and to provide full monitoring capability for the system.
  • Page 25 Modulator DB-9 Rear Panel RS232/ 485 Connector Modulator DB-9 SUM ALARM Connector See ”Installation” chapter on page 5-1 for connector pin assignments (part of the SCM4000 Technical Reference Manual SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation...
  • Page 26 Connector RS232 Connector See ”Installation” chapter on page 5-1 for connector pin Demodulator AC/DC Power assignments (part of the SCM4000 Technical Reference Manual Connector only). Demodulator BNC IF IN Connector Demodulator DB-9 Front Panel RS232 Connector Demodulator RJ-45 T1/E1 10/100...
  • Page 27 Demodulator DB-9 SUM ALARM Connector The SUM 100 BaseT connectors provide T1/E1 or Ethernet connections. ALARM DB-9 female connector provides summary alarm data for common faults and events. Figure 3-3: SCM4000 Demodulator Connectors RS232 Connector (Behind Access Cover) AC Power...

  • Page 28: Scm4000 Modulator/Demodulator Connectors - -

    Modulator/Demodulator DB-9 SUM ALARM Connectors See ”Installation” chapter on page 5-1 for connector pin SUM ALARM DB-9 female connectors provide summary alarm assignments (part of the SCM4000 Technical Reference Manual data for common faults and events. only). Modulator/Demodulator DB-9 Front Panel RS232...

  • Page 29: Scm4000 Modulator/Encoder Connectors - - - - - -

    Figure 3-4: SCM4000 Modulator/Demodulator Connectors RS232 Connector (Behind Access Cover) AC Power ASI SMPTE T1/E1 10/100 FRONT VIEW Connector (AC IF IN RS232/485 IF OUT Connector RS232/485 T1/E1 10/100 Connectors Option) Connector Connector Connector Connector Connectors T1/E1 T1/E1 IF IN...
  • Page 30 AC/DC power cable. The power connector is part of the power See ”Installation” chapter on page 5-1 for connector pin switch assembly. assignments (part of the SCM4000 Technical Reference Manual Modulator/Encoder BNC IF OUT Connector The IF OUT 75 only).

  • Page 31: Scm4000 Demodulator/Decoder Connectors- - - -

    Connectors Modulator/Encoder DB-9 AUDIO A and B Connectors See ”Installation” chapter on page 5-1 for connector pin AUDIO A and B DB-9 male connectors receive analog audio assignments (part of the SCM4000 Technical Reference Manual inputs. only). 3.2.6 SCM4000 Demodulator/Decoder...

  • Page 32: Preparing For Operation

    Figure 3-6: SCM4000 Demodulator/Decoder Connectors RS232 Connector (Behind Access Cover) AC Power Connector 3 ASI SMPTE T1/E1 10/100 IF IN FRONT VIEW VIDEO RS232/485 (AC Option) Connector Connectors Connector Connector Connector T1/E1 IF IN RS232/485 IF OUT 10/100 VIDEO AUDIO B...
  • Page 33 3.3.1 Fixed or Mobile Installation Set the SCM4000 rear panel power switch to on ( I ). The normal power-up sequence is as follows: For fixed installations, the SCM4000 can be mounted in a The front panel green POWER LED should illuminate.
  • Page 34 Topic Page values of the Preset selected and the selected Preset options. Overview 3-12 When power is applied to the SCM4000, the Main Screen will be Menu Configurations 3-16 displayed. Refer to Table 3-2 for a list of the Main Screens displayed for the various SCM4000 configurations.
  • Page 35 SCM4000 configurations . The selections available on any menu page can exceed the number of lines physically displayed. The front panel firmware creates a box that surrounds the complete set of lines on any menu page.
  • Page 36 Rate: 9.00Mb/s System Reset Data Ch2 ASI 2 Rate: 11.00Mb/s Data Ch3 ASI 3 Rate: 10.00Mb/s Data Ch4 T1/E1: 1 Rate: 1.54Mb/s If Lvl: -6.4dBm SpectInv: On CW Tone: Off PRBS: Off SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-14...
  • Page 37 Ln Coding: On Rate: 10.00Mb/s PRBS: Off PRBS Info: Data Ch4: PRBS: Off BER: 1.200e-7 T1/E1 1 Reset PRBS Rate: 1.54Mb/s Ln Coding: On PRBS Info: PRBS: Off BER: 1.200e-7 Reset PRBS SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-15...
  • Page 38 PRBS: Off BER: 1.200e-7 Reset PRBS 3.4.2 Menu Configurations The SCM4000 determines its configuration upon power-up. The menus show only those selections that are relevant to you, based on the current hardware configuration. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation...
  • Page 39 Figure 3-20. key must be pressed to store any changes when the ! cursor is displayed. Figure 3-18: SCM4000 Main Screen Menu - Typical • cursor is displayed for menu items that are read- SCM4000 only indications or for items that are currently inactive.
  • Page 40 Left and Right keys move the values in smaller steps. All Active Errors If active errors are present in the SCM4000, the operational parameters have associated value ranges, defined Active Errors menu will display all current active errors and the by the upper and lower value limits.

  • Page 41: Scm4000 Monitor/Change Operations - - - - - - - - - -

    Operations select the required individual menu selections, options, or settings. Once your SCM4000 is powered up, you will be able to check its Please note that pressing and holding a key will not current configuration, change certain Preset settings, and automatically scroll through the menu selections, options, or monitor its operation and settings.

  • Page 42: Scm4000 Modulator Menu Operations- - - - - - - - - -

    SCM4000 Modulator Menu Monitor SMPTE Bit Rate 3-54 Operations Monitor/Change T1/E1 Enable 3-56 If your SCM4000 configuration contains the optional Modulator, Monitor/Change T1/E1 Line Standard 3-58 the procedures listed in Table 3-4 are used to monitor and/or Monitor/Change T1/E1 Termination 3-60 change internal Modulator parameters or settings.
  • Page 43 Main Screen menus for SCM4000 configurations The following Data Channel interface factory setting options are containing the Modulator option vary according to available and must be specified when your SCM4000 is ordered: hardware options installed in the unit. ”Overview” on page 3-12...
  • Page 44 Press the SEL key or Right arrow key to select the Press the Up or Down arrow keys, as required, to SR: option and observe the > cursor changes to a ! move the cursor to the Recall Preset option. Observe cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-22...
  • Page 45 “X” indicated in the Preset Menu in the following following steps. steps represents Presets 1 thru 9. “Preset #X” represents the Preset name. Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- 31 on page 3-24.
  • Page 46 Press the SEL key or Right arrow key and observe the the latest changes, go to step 20. Modulator menu is displayed. See Figure 3-33. To save Preset setting changes, perform “Save Preset Settings” on page 3-154. Procedure is complete. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-24...
  • Page 47 On or OFF is contained in the following steps. This steps represents Presets 1 thru 9. “Preset #X” procedure may only be performed for SCM4000 Data Channel 1 represents the Preset name. thru 4 options that have been factory set for ASI 1, ASI 2, or ASI Observe the Preset Menu is displayed.
  • Page 48 3-154. Procedure is complete. Rate: 9.00Mb/s To recall Preset settings without saving the latest changes, perform “Recall Preset Settings” on page 3- Press the Down arrow key to move the cursor to the 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-26...
  • Page 49 Note “X” indicated in the Preset Menu in the following procedure may only be performed for SCM4000 Data Channel 1 steps represents Presets 1 thru 9. “Preset #X” thru 4 options that have been factory set for ASI 1, ASI 2, or ASI represents the Preset name.
  • Page 50 Press the Up, Down, Left, or Right arrow keys, as required, to select the bit rate required. The bit rate range is from 0.0 to 90.0Mb/s. Press the SEL key and observe the ! cursor changes to a > cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-28...
  • Page 51 Press the SEL or Right arrow key to select the Preset state to On or Off is contained in the following steps. This Menu option. procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for DS3/E3 1 or DS3/E3 Note “X”...
  • Page 52 Press the SEL key or Right arrow key and observe the Press the Up or Down arrow keys, as required, to Modulator menu is displayed. See Figure 3-51. move the > cursor to the DS3 EN: option. Figure 3-53 on page 3-31. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-30...

  • Page 53: Monitor/Change Ds3/E3 Line Standard Setting -

    Line Standard setting to DS3 or E3 is contained in the following Line Eq: <70M steps. This procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for Press the SEL key or Right arrow key to select the DS3/E3 1 or DS3/E3 2.
  • Page 54 Preset Menu Rate: 9.00Mb/s Save Settings Press the Down arrow key to move the cursor to the ! #X: Preset #X DS3/E3 Y option required. Observe the cursor changes to a >> cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-32...
  • Page 55 This procedure may only be performed for step 22. SCM4000 Data Channel 1 thru 4 options that have been factory set for DS3/E3 1 or DS3/E3 2. Press the SEL or Right arrow key and observe the ! cursor is displayed.
  • Page 56 >> cursor to the Modulator option. Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- Modulator menu is displayed. See Figure 3-65 on page 3-35. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-34...
  • Page 57 DS3/E3 Y option and observe the cursor changes to a select <70M or >=70M. > cursor. Press the SEL key and observe the ! cursor changes to a > cursor. Press the ESC key repeatedly until the Main Screen is displayed. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-35...
  • Page 58 This procedure may only be represents the Preset name. performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for DS3/E3 1 or DS3/E3 2. Observe the Preset Menu is displayed.
  • Page 59 Press the ESC key repeatedly until the Main Screen is displayed. Mod Type: 16QAM Data Ch1: 3.6.9 Monitor/Change Ethernet Enable The procedure required to monitor or change the Ethernet enable state to On or Off is contained in the following steps. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-37...
  • Page 60 This procedure may only be performed for SCM4000 Data Note “X” indicated in the Preset Menu in the following Channel 1 thru 4 options that have been factory set for Eth 1 or steps represents Presets 1 thru 9. “Preset #X”...
  • Page 61 Press the SEL key or Right arrow key to select the Eth Y option and observe the cursor changes to a > To save Preset setting changes, perform “Save Preset cursor. Settings” on page 3-154. Procedure is complete. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-39...
  • Page 62 0.0 to 90.0Mb/s (12.5Mb/s recommended). This represents the Preset name. procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for Eth 1 or Eth 2. Observe the Preset Menu is displayed.
  • Page 63 Figure 3-86: Data Channel Menu - Typical Figure 3-87: Ethernet Enable Menu - Typical Modulator Eth 1 * Data ChX > Eth EN: On Eth Y Rate: 12.5Mb/s Rate: 9.00Mb/s LIU Rate: 10Mb SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-41...

  • Page 64: Monitor/Change Ethernet Liu Bit Rate - - - - - - -

    SCM4000 Data Channel 1 Press the SEL key or Right arrow key to select the thru 4 options that have been factory set for Eth 1 or Eth 2. Rate: option and observe the > cursor changes to a ! cursor.
  • Page 65 Press the SEL key or Right arrow key to select the Eth Press the ESC key repeatedly until the Main Screen is Y option and observe the cursor changes to a > displayed. cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-43...
  • Page 66 The procedure required to monitor or change the RS232/RS485 enable state to On or Off is contained in the following steps. This procedure may only be performed for SCM4000 Data Press the SEL key or Right arrow key to select the Channel 1 thru 4 options that have been factory set for RS232 or Rate: option and observe the >...
  • Page 67 Press the SEL or Right arrow key and observe the Recall Preset option changes to #X: Preset #X, as shown in Figure 3-98, and the > cursor changes to a ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-45...

  • Page 68: Monitor/Change Rs232/Rs485 Baud Rate - - - -

    600bps to 115.2kbps. This procedure may only be Baud: 115.2kbps performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for RS232 or RS485. Press the SEL key or Right arrow key to select the Verify the SCM4000 is powered up.
  • Page 69 >> cursor to the Modulator option. Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- Modulator menu is displayed. See Figure 3-106 on 104. page 3-48. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-47...
  • Page 70 Settings” on page 3-154. Procedure is complete. the > cursor to the Baud: option. See Figure 3-108. To recall Preset settings without saving the latest changes, perform “Recall Preset Settings” on page 3- 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-48...
  • Page 71 The procedure required to monitor the RS232 or RS485 Bit Rate is contained in the following steps. This procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have Note “X” indicated in the Preset Menu in the following been set for RS232 or RS485.
  • Page 72 The procedure required to monitor or change the SMPTE enable Data Ch1: state to On or Off is contained in the following steps. This procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for SMPTE. Note In the following steps, “Data ChX”...
  • Page 73 Press the SEL or Right arrow key and observe the Recall Preset option changes to #X: Preset #X, as shown in Figure 3-118, and the > cursor changes to a ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-51...
  • Page 74 > SMPTE EN: On to Analog or Digital is contained in the following steps. This Mode: Analog procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for SMPTE. Verify the SCM4000 is powered up.
  • Page 75 Modulator Preset Menu > SR: 20.0MS/s Mod Type: 16QAM * #X: Preset #X Save Settings Data Ch1: Recall Preset Note In the following steps, “Data ChX” represents Data Ch1 thru Data Ch4. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-53...
  • Page 76 The procedure required to monitor the SMPTE Bit Rate is contained in the following steps. This procedure may only be SMPTE performed for SCM4000 Data Channel 1 thru 4 options that have > SMPTE EN: On been set for SMPTE.
  • Page 77 >> cursor to the Modulator option. Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- Modulator menu is displayed. See Figure 3-133 on 131. page 3-56. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-55...
  • Page 78 On or Off is contained in the following steps. This Mod Type: 16QAM procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for T1/E1 1 or T1/E1 2. Data Ch1: Verify the SCM4000 is powered up.
  • Page 79 Preset 1 thru 9, as required, and press the SEL key. E1 X option and observe the cursor changes to a > Press the ESC key repeatedly until the Main Screen is cursor. displayed. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-57...

  • Page 80: Monitor/Change T1/E1 Line Standard- - - - - - - -

    T1 or E1 is contained in the following steps. This Line Std: T1 procedure may only be performed for SCM4000 Data Channel 1 Term: 120 Ohm thru 4 options that have been factory set for T1/E1 1 or T1/E1 2.
  • Page 81 Rate: 1.54Mb/s Preset Menu Save Settings Press the Down arrow key to move the cursor to the ! #X: Preset #X T1/E1 X option. Observe the cursor changes to a >> cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-59...

  • Page 82: Monitor/Change T1/E1 Termination - - - - - - - - -

    > T1E1 EN: On contained in the following steps. This procedure may only be Line Std: T1 performed for SCM4000 Data Channel 1 thru 4 options that have Term: 120 Ohm been factory set for T1/E1 1 or T1/E1 2.
  • Page 83 Press the SEL or Right arrow key and observe the Recall Preset option changes to #X: Preset #X, as shown in Figure 3-152, and the > cursor changes to a ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-61...

  • Page 84: Monitor/Change T1/E1 Line Coding State - - - - -

    On or Off is contained in the following steps. Line Std: T1 This procedure may only be performed for SCM4000 Data Term: 120 Ohm Channel 1 thru 4 options that have been factory set for T1/E1 1 or T1/E1 2.
  • Page 85 >> cursor to the Modulator option. Observe the Preset Menu is displayed. See Figure 3- Press the SEL key or Right arrow key and observe the 158. Modulator menu is displayed. See Figure 3-160 on page 3-64. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-63...
  • Page 86 3-154. Procedure is complete. move the > cursor to the Ln Coding: option. To recall Preset settings without saving the latest Figure 3-162. changes, perform “Recall Preset Settings” on page 3- 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-64...

  • Page 87: Monitor/Change T1/E1 Receiver Gain - - - - - - -

    Gain setting is contained in the following steps. This procedure represents the Preset name. may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for T1/E1 1 or T1/E1 2. Observe the Preset Menu is displayed.
  • Page 88 Press the SEL key or Right arrow key to select the T1/ E1 X option and observe the cursor changes to a > cursor. Press the Up or Down arrow keys, as required, to SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-66...
  • Page 89 This procedure may only be represents the Preset name. performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for T1/E1 1 or T1/E1 2. Observe the Preset Menu is displayed.
  • Page 90 The procedure required to monitor and/or change the IF level > SR: 20.0MS/s from -5 to -15dBm is contained in the following steps. Mod Type: 16QAM Verify the SCM4000 is powered up. Data Ch1: Verify the Main Screen is displayed. See Figure 3-176 on page 3-69.
  • Page 91 >> cursor to the Modulator option. Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- Modulator menu is displayed. See Figure 3-180 on 178. page 3-70. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-69...

  • Page 92: Monitor/Change Spectrum Inverter State - - - - -

    Lvl: option and observe the > cursor changes to a ! Inverter state to On or Off is contained in the following steps. cursor. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Note The IF Level is a system parameter that is 182.
  • Page 93 * #X: Preset #X Data Ch1: Save Settings Recall Preset Press the Up or Down arrow keys, as required, to move the cursor to the SpectInv: option. Figure 3-187 on page 3-72. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-71...
  • Page 94 For normal operation, CW Tone should be set to Off. Press the SEL key or Right arrow key to select the Verify the SCM4000 is powered up. SpectInv: option and observe the > cursor changes Verify the Main Screen is displayed.
  • Page 95 Press the Up, Down, Left, or Right arrow keys to select Press the ESC key repeatedly until the Main Screen is Preset 1 thru 9, as required, and press the SEL key. displayed. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-73...
  • Page 96 During normal operation, the PRBS state should be set to steps represents Presets 1 thru 9. “Preset #X” Off. represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3-194. Observe the Preset Menu is displayed.
  • Page 97 Press the Up or Down arrow keys, as required, to move the >> cursor to the Modulator option. Press the SEL key or Right arrow key and observe the Modulator menu is displayed. See Figure 3-198. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-75...

  • Page 98: Scm4000 Demodulator Menu Operations - - - - - - -

    Demodulator Data Channel interface parameters and settings are dependent upon factory settings and hardware Topic Page configurations. The following factory setting options are available and must be specified when your SCM4000 is ordered: Monitor/Change Symbol Rate Settings 3-77 Monitor/Change Modulation Type Settings 3-79...

  • Page 99: Monitor/Change Symbol Rate Settings - - - - - - -

    16QAM, 32QAM, and 64QAM modulation rates and bandwidth. Note ASI 2, DS3 2, and E3 2 Data Channel interfaces Verify the SCM4000 is powered up. are not available in the SCM4000 Demodulator/ Verify the Main Screen is displayed. See Figure 3- Decoder configuration.
  • Page 100 Figure 3-203: Recall Preset Option displayed. Preset Menu Save Settings ! #X: Preset #X Press the Up, Down, Left, or Right arrow keys to select Preset 1 thru 9, as required, and press the SEL key. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-78...
  • Page 101 Presets 1 thru 9. “Preset #X” type to QPSK, 16QAM, 32QAM, or 64QAM is contained in the represents the Preset name. following steps. Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- Verify the Main Screen is displayed.
  • Page 102 The procedure required to monitor Signal to Noise Ratio (SNR) is contained in the following steps. Press the Up or Down arrow keys, as required, to move the > cursor to the Mod Type: option. Verify the SCM4000 is powered up. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-80...
  • Page 103 Presets 1 thru 9. “Preset #X” Press the SEL key or Right arrow key and observe the represents the Preset name. Demodulator menu is displayed. See Figure 3-214 on page 3-82. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-81...
  • Page 104 The procedure required to monitor Error Vector Magnitude Observe the Preset Menu is displayed. See Figure 3- (EVM) is contained in the following steps. 217. Verify the SCM4000 is powered up. Figure 3-217: Preset Menu - Typical Verify the Main Screen is displayed. See Figure 3-215.

  • Page 105: Monitor/Change Asi Bit Rate Settings - - - - - - -

    0.0 to 90.0Mb/s is contained in the following steps. Press the Up, Down, Left, or Right arrow keys to select This procedure may only be performed for SCM4000 Data Preset 1 thru 9, as required, and press the SEL key.
  • Page 106 Ch1 thru Data Ch4 and “ASI Y” represents ASI 1 thru ASI 3. Press the Up or Down arrow keys, as required, to move the cursor to the Recall Preset option. Observe the cursor changes to a > cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-84...
  • Page 107 Press the SEL key or Right arrow key to select the ASI To recall Preset settings without saving the latest Y option and observe the cursor changes to a > changes, perform “Recall Preset Settings” on page 3- cursor. See Figure 3-226. 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-85...
  • Page 108 The procedure required to monitor and/or change the DS3/E3 Menu option. Line Standard setting to DS3 or E3 is contained in the following steps. This procedure may only be performed for SCM4000 Note “X” indicated in the Preset Menu in the following Data Channel 1 thru 4 options that have been factory set for steps represents Presets 1 thru 9.
  • Page 109 Press the SEL key and observe the ! cursor changes to a > cursor. Press the Down arrow to move the cursor to the DS3/ E3 Y option required. Observe the cursor changes to a >> cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-87...

  • Page 110: Monitor/Change Ds3/E3 Line Equalizer Setting-

    This procedure may only be performed for Note “X” indicated in the Preset Menu in the following SCM4000 Data Channel 1 thru 4 options that have been factory steps represents Presets 1 thru 9. “Preset #X” set for DS3/E3 1 or DS3/E3 2.
  • Page 111 DS3/E3 Y option and observe the cursor changes to a move the >> cursor to the Demodulator option. > cursor. Press the SEL key or Right arrow key and observe the Demodulator menu is displayed. See Figure 3-238. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-89...
  • Page 112 The procedure required to monitor the DS3/E3 bit rate is contained in the following steps. This procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have Observe the Line Eq: option is <70M or >=70M and been factory set for DS3/E3 1 or DS3/E3 2.
  • Page 113 Note In the following steps, “Data ChX” represents Data Ch1 thru Data Ch4 and “DS3/E3 Y” represents DS3/E3 1 or DS3/E3 2. Press the Up or Down arrow keys, as required, to SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-91...
  • Page 114 This procedure may only be performed for steps represents Presets 1 thru 9. “Preset #X” SCM4000 Data Channel 1 thru 4 options that have been factory represents the Preset name. set for Eth 1 or Eth 2.
  • Page 115 Press the Down Arrow key, as required, to move the cursor to the Rate: option. Observe the cursor Press the SEL key or Right arrow key and observe the changes to a * cursor. Demodulator menu is displayed. See Figure 3-251. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-93...
  • Page 116 (Auto recommended) is contained in the following steps. This LIU Rate: 10Mb procedure may only be performed for SCM4000 Data Channel 1 thru 4 options that have been factory set for Eth 1 or Eth 2. Press the SEL key or Right arrow key to select the Rate: option and observe the >...
  • Page 117 >> cursor to the Demodulator option. Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- Demodulator menu is displayed. See Figure 3-258 256. on page 3-96. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-95...
  • Page 118 > cursor to the LIU Rate: option. Settings” on page 3-154. Procedure is complete. Figure 3-260. To recall Preset settings without saving the latest changes, perform “Recall Preset Settings” on page 3- 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-96...
  • Page 119 This procedure may only be performed for Note “X” indicated in the Preset Menu in the following SCM4000 Data Channel 1 thru 4 options that have been factory steps represents Presets 1 thru 9. “Preset #X” set for RS232 or RS485.
  • Page 120 “Recall Preset Settings” on page 3- Press the SEL key or Right arrow key to select the 155. RSX option and observe the cursor changes to a > cursor. See Figure 3-267. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-98...
  • Page 121 Presets 1 thru 9. “Preset #X” is contained in the following steps. This procedure may only be represents the Preset name. performed for SCM4000 Data Channel 1 thru 4 options that have been set for RS232 or RS485. Observe the Preset Menu is displayed.
  • Page 122 This procedure may only be Note In the following steps, “Data ChX” represents Data performed for SCM4000 Data Channel 1 thru 4 options that have Ch1 thru Data Ch4 and “RSX” represents RS232 been factory set for SMPTE.
  • Page 123 Press the SEL or Right arrow key and observe the Recall Preset option changes to #X: Preset #X, as shown in Figure 3-277, and the > cursor changes to a ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-101...

  • Page 124: Monitor/Change T1/E1 Line Standard - - - - - - -

    The procedure required to monitor or change the T1/E1 line standard to T1 or E1 is contained in the following steps. This procedure may only be performed for SCM4000 Data Channel 1 Note “X” indicated in the Preset Menu in the following thru 4 options that have been factory set for T1/E1 1 or T1/E1 2.
  • Page 125 > cursor to the Line Std: option. Press the SEL key or Right arrow key and observe the Figure 3-286 on page 3-104. Demodulator menu is displayed. See Figure 3-284. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-103...

  • Page 126: Monitor/Change T1/E1 Line Coding - - - - - - - -

    The procedure required to monitor or change the T1/E1 line coding state to On or Off is contained in the following steps. > Line Std: T1 This procedure may only be performed for SCM4000 Data Ln Coding: Off LBO: <40M/0dBm Channel 1 thru 4 options that have been factory set for T1/E1 1 or T1/E1 2.
  • Page 127 Press the Up, Down, Left, or Right arrow keys to select E1 X option and observe the cursor changes to a > Preset 1 thru 9, as required, and press the SEL key. cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-105...

  • Page 128: Monitor/Change T1/E1 Line Build Out - - - - - - -

    T1/E1 X Out (LBO) settings is contained in the following steps. This > Line Std: T1 procedure may only be performed for SCM4000 Data Channel 1 Ln Coding: Off LBO: <40M/0dBm thru 4 options that have been factory set for T1/E1 1 or T1/E1 2.
  • Page 129 Figure 3-297: Recall Preset Option Rate: 1.54Mb/s Preset Menu Save Settings Press the Down arrow to move the cursor to the T1/E1 ! #X: Preset #X X option. Observe the cursor changes to a >> cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-107...
  • Page 130 <40M/0dBm, 40M-80M, 80M-120M, contained in the following steps. This procedure may only be 120M-160M, 160M-200M, -7.5dBm, -15dBm, or performed for SCM4000 Data Channel 1 thru 4 options that have -22.5dBm. been factory set for T1/E1 1 or T1/E1 2.
  • Page 131 SNR: 30.3dB * #X: Preset #X Save Settings Recall Preset Note In the following steps, “Data ChX” represents Data Ch1 thru Data Ch4. Press the Up or Down arrow keys, as required, to SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-109...
  • Page 132 The procedure required to monitor or change the Line Equalizer represents the Preset name. state to On or Off is contained in the following steps. Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- Verify the Main Screen is displayed.
  • Page 133 Press the Up or Down arrow keys, as required, to move the >> cursor to the Demodulator option. Press the SEL key or Right arrow key and observe the Demodulator menu is displayed. See Figure 3-311. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-111...
  • Page 134 During normal operation, the PRBS state should steps represents Presets 1 thru 9. “Preset #X” be set to Off. represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Observe the Preset Menu is displayed.
  • Page 135 Demodulator menu is displayed. See Figure 3-317. Press the Up or Down arrow keys, as required, to select On or Off. Press the SEL key and observe the ! cursor changes to a > cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-113...
  • Page 136 Sequence (PRBS) Bit Error Rate (BER) is contained in the following steps. Note “X” indicated in the Preset Menu in the following Verify the SCM4000 is powered up. steps represents Presets 1 thru 9. “Preset #X” Verify the Main Screen is displayed. See Figure 3- represents the Preset name.
  • Page 137 Press the SEL key or Right arrow key and observe the Demodulator menu is displayed. See Figure 3-324. Observe the current Bit Error Rate is displayed. Press the ESC key repeatedly until the Main Screen is displayed. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-115...
  • Page 138 Presets 1 thru 9. “Preset #X” Sequence (PRBS) Bit Error Rate (BER) is contained in the represents the Preset name. following steps. Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- 329.
  • Page 139 SCM4000 Modulator/Demodulator Figure 3-331: Demodulator Menu - Typical Demodulator Menu Operations > SR: 10.0MS/s If your SCM4000 configuration contains both a Modulator and a Mod Type: 16QAM Demodulator module, refer to “SCM4000 Modulator Menu SNR: 30.3dB Operations” on page 3-20 to monitor or change internal Modulator Preset parameters or settings.

  • Page 140: Scm4000 Modulator/Encoder Menu Operations - -

    Menu Operations Topic Page Monitor Network Name 3-133 Once the SCM4000 Modulator/Encoder is powered up, you will be able to check its configuration, change certain Preset Monitor Service Name 3-134 settings, and monitor its operation. Figure 3-468 on page 3-166...
  • Page 141 Press the SEL key or Right arrow key and observe the operation, options are PAL, Auto, or Off. Recall Preset option changes to #X:Preset #X, as shown in Figure 3-337, and the > cursor changes to a ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-119...
  • Page 142 To monitor or change Chroma option settings to 4:2:0 or 4:2:2, represents the Preset name. perform the following steps for each Preset, as required: Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- 341 on page 3-121.
  • Page 143 To save Preset setting changes, perform “Save Preset 343. Settings” on page 3-154. Procedure is complete. To recall Preset settings without saving the latest changes, perform “Recall Preset Settings” on page 3- 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-121...
  • Page 144 Note Basic Interoperable Scrambling System (BISS) is a factory-installed option that must be specified when you order your SCM4000 MPEG Encoder. Press the Up or Down arrow keys, as required, to move the >> cursor to the Preset Menu option.
  • Page 145 Standard (< 200 ms), perform the following steps for each Chroma: 4:2:0 Preset, as required: BISS: Off Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Press the Up or Down arrow keys, as required, to 349.
  • Page 146 Delay: option. Press the SEL key or Right arrow key and observe the Press the Up or Down arrow keys, as required, to > cursor changes to a ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-124...
  • Page 147 Presets 1 thru 9. “Preset #X” perform the following steps for each Preset, as required. represents the Preset name. Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- Verify the Main Screen is displayed.
  • Page 148 Press the SEL key or Right arrow key and observe the changes, go to step 20. MPEG Encoder menu is displayed. See Figure 3- 358. To save Preset setting changes, perform “Save Preset Settings” on page 3-154. Procedure is complete. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-126...
  • Page 149 Preset, as required: steps represents Presets 1 thru 9. “Preset #X” represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Observe the Preset Menu is displayed.
  • Page 150 Press the SEL key or Right arrow key and observe the following steps for each Preset, as required: > cursor changes to a ! cursor. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3-...
  • Page 151 Preset Menu >> MPEG Encoder * #X: Preset #X Modulator Save Settings System Menu Recall Preset Press the Up or Down arrow keys, as required, to select the Audio A Input: option. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-129...
  • Page 152 Settings” on page 3-154. Procedure is complete. required, to change the Mode: setting to Mono or To recall Preset settings without saving the latest Stereo. changes, perform “Recall Preset Settings” on page 3- 155. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-130...
  • Page 153 Presets 1 thru 9. “Preset #X” following steps for each Preset, as required: represents the Preset name. Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- Verify the Main Screen is displayed.
  • Page 154 Press the SEL key and observe the ! cursor changes Press the ESC key repeatedly until the Main Screen is to a > cursor. displayed. Press the Down arrow key to select the Audio B Mode: option. See Figure 3-376. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-132...
  • Page 155 To monitor individual Preset Network names, perform the steps represents Presets 1 thru 9. “Preset #X” following steps for each Preset, as required: represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3-378.
  • Page 156 Monitor Service Name ! cursor. To monitor individual Preset Service names, perform the following steps for each Preset, as required: Figure 3-381: Recall Preset Option Verify the SCM4000 is powered up. Preset Menu Verify the Main Screen is displayed. See Figure 3-383.
  • Page 157 SCM4000 MPEG Demodulator/ ! cursor. Decoder Menu Operations Figure 3-386: Recall Preset Option Once the SCM4000 Demodulator/Decoder is powered up, you Preset Menu will be able to check its configuration, change certain Preset settings, and monitor its operation. Save Settings...

  • Page 158: Monitor/Change Color Bars Settings - - - - - - - -

    Decoder Presets. To monitor or change Color Bars option settings to Auto or Off, Refer to “SCM4000 Demodulator Menu Operations” on page 3- perform the following steps for each Preset, as required: to monitor or change internal Demodulator Preset parameters Verify the SCM4000 is powered up.
  • Page 159 Press the Up, Down, Left, or Right arrow keys to select Preset 1 thru 9, as required, and press the SEL key. Press the ESC key, as required, until the Main Screen is displayed. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-137...

  • Page 160: Monitor/Change Audio Output Settings - - - - - -

    Presets 1 thru 9. “Preset #X” analog, perform the following steps for each Preset, as required: represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Observe the Preset Menu is displayed.

  • Page 161: Monitor/Change Generator Lock Settings - - - -

    To monitor or change Gen Lock option settings to On or Off, perform the following steps for each Preset, as required: Gen Lock: Off Verify the SCM4000 is powered up. Press the Up or Down arrow keys, as required, to select the Audio Out: option.
  • Page 162 MPEG Decoder menu is displayed. See Figure 3-402 steps represents Presets 1 thru 9. “Preset #X” on page 3-141. represents the Preset name. Observe the Preset Menu is displayed. See Figure 3- 400. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-140...

  • Page 163: Monitor/Change Ntsc Pedestal Settings - - - -

    MRC and Tandberg Encoders provide a Press the SEL key or Right arrow key and observe the choice of pedestal or no pedestal, and the SCM4000 Decoder > cursor changes to a ! cursor. permits selection of a pedestal (On) or no pedestal (Off).
  • Page 164 Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- MPEG Decoder menu is displayed. See Figure 3-407 405. on page 3-143. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-142...
  • Page 165 Press the SEL key or Right arrow key and observe the you order your SCM4000 Decoder option. > cursor changes to a ! cursor. Press the Up, Down, Left, or Right arrow keys, as...
  • Page 166 Recall Preset option changes to #X:Preset #X, as Press the SEL key and observe the ! cursor changes shown in Figure 3-411, and the > cursor changes to a to a > cursor. ! cursor. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-144...
  • Page 167 To monitor Audio A channel status, perform the following steps Press the SEL key or Right arrow key to select the for each Preset, as required: Preset Menu option. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Note “X”...
  • Page 168 Preset 1 thru 9, as required, and press the SEL key. for each Preset, as required: Press the ESC key, as required, until the Main Screen Verify the SCM4000 is powered up. is displayed. Verify the Main Screen is displayed.
  • Page 169 Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- MPEG Decoder menu is displayed. See Figure 3-422 420. on page 3-148. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-147...
  • Page 170 Perform the following steps for each Preset, as steps represents Presets 1 thru 9. “Preset #X” required: represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Observe the Preset Menu is displayed.
  • Page 171 Preset 1 thru 9, as required, and press the SEL key. Preset, as required: Press the ESC key, as required, until the Main Screen Verify the SCM4000 is powered up. is displayed. Verify the Main Screen is displayed. See Figure 3-428 Press the Up arrow key to move the >>...
  • Page 172 Press the SEL key or Right arrow key and observe the Observe the Preset Menu is displayed. See Figure 3- MPEG Decoder menu is displayed. See Figure 3-432 430. on page 3-151. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-150...
  • Page 173 To monitor the Service Name of the selected Preset, perform the Preset Menu option. following steps for each Preset, as required: Verify the SCM4000 is powered up. Note “X” indicated in the Preset Menu in the following steps represents Presets 1 thru 9. “Preset #X”...
  • Page 174 SCM4000 System Menu Figure 3-436: Recall Preset Option Operations Preset Menu The SCM4000 detects which modules are contained in the unit Save Settings upon power-up. Menus then show only those selections that are ! #X: Preset #X relevant to you, based on the SCM4000 configuration. All...
  • Page 175 The procedure required to monitor and/or change the current represents the Preset name. active Preset is contained in the following steps: Verify the SCM4000 is powered up. Observe the Preset Menu is displayed. See Figure 3- Verify the Main Screen is displayed.
  • Page 176 The procedure required to save Preset settings is contained in steps represents Presets 1 thru 9. “Preset #X” the following steps. represents the Preset name. Verify the SCM4000 is powered up. Verify the Main Screen is displayed. See Figure 3- Observe the Preset Menu is displayed.
  • Page 177 Preset name. To recall individual Presets, perform the following steps. Observe the Preset Menu is displayed. See Figure 3- Verify the SCM4000 is powered up. 448. Verify the Main Screen is displayed. See Figure 3- 446. If the Main Screen is not displayed, press the...
  • Page 178 See the “Troubleshooting” Chapter on page 4-1 a complete list of possible SCM4000 Error Codes. 3.11.4 Monitor Active Errors Press the SEL key or Right arrow key to select the The procedure required to monitor active errors is contained in Active Errors option and observe the Active Errors the following steps.
  • Page 179 The procedure required to monitor and clear the error log is See the “Troubleshooting” Chapter on page 4-1 contained in the following steps. the complete list of possible SCM4000 Error Codes. Verify the SCM4000 is powered up. Verify the Main Screen is displayed.
  • Page 180 See Figure 3-460 on page 3-159. The procedure required to monitor the firmware versions of the options contained in your SCM4000 configuration is contained in the following steps. Verify the SCM4000 is powered up. Verify the Main Screen is displayed.
  • Page 181 Figure 3-460: System Info Menu - Typical Note All options contained in your SCM4000 will be System Info displayed in the System Info menu. Figure 3-460 shows information applicable to the SCM4000 * DCC Demodulator/Decoder configuration. Other 0.0.0.9 configurations shall display system information Front Panel applicable only to their configurations.
  • Page 182 3.11.7 Perform System Reset System Reset option and observe the SCM4000 The procedure required to perform a SCM4000 system reset, in powers down momentarily, and then re-boots. the event of a suspected system crash or lock-up, is contained in After a short delay, observe the Main Screen is the following steps.
  • Page 183 Set to On or Off. Select QPSK, Channel 1 bit rate. Channel 2 bit rate. Channel 3 bit rate. Channel 4 bit rate. 16QAM, 32QAM, or 64QAM. (See Notes) (See Notes) (See Notes) (See Notes) SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-161...
  • Page 184 > Serial EN: On > Baud: 115.2kbps Select 10Mb, 100Mb, Select baud rate from Select On or Off. Select On or Off. Select bit rate from 0.0 or Auto. 600bps to 115.2kbps. to 80.0Mb/s SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-162...
  • Page 185 Select T1 or E1. 100 Ohm, or 120 Select On or Off. Select On or Off. Digital. Select -30 dBm or -36 Ohm. dBm. E1 Option: Select -12 dBm or -43 dBm. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-163...
  • Page 186 Channel 1 bit rate. Channel 2 bit rate. Channel 3 bit rate. Channel 4 bit rate. 64QAM. PRBS Info * BER: 0.000e+00 (See Notes) (See Notes) (See Notes) (See Notes) Observe bit error rate. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-164...
  • Page 187 T1 Options: Select T1 or E1. Select On or Off. 115.2kbps. Select <40M/ 0dBm, 40M-80M, 80M-120M, 120M- 160M, 160M- 200M, -7.5dBm, -15dBm, or -22.5dBm. E1 Options: 75 Ohm, 120 Ohm, or ILL. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-165...
  • Page 188 Select 4:2:0 or Select Mono or Select MPEG or Select Mono or Select MPEG or Select Low or TstTon, Analog, TstTon, Analog, Stereo. Off. Stereo. Off. 4:2:2. Standard. or SDI. or SDI. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-166...
  • Page 189 > NTSC Ped: Off * Audio_B: Locked * PktEr: 0E/S Select Dig or Observe Aud_B Observe number Select Off or On. Ana. status (Unlock, of packet errors Mono, or Stereo). per second. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-167...
  • Page 190 Typical System Info is shown. Observe current Select active thru 9 to save all System information is active Preset. Preset 1 thru 9. setting changes. dependent upon the actual Observe firmware SCM4000 configuration. versions for SCM4000. SCM4000 Operator’s Guide/Tech Ref Manual Routine Operation 3-168...

  • Page 191: Status Leds

    Troubleshoot Status LEDs using tables in this chapter. Alphanumeric The SCM4000 front panel contains three status LEDs. The LED display will default to the indications are listed in Table 4-1. Active Errors menu screen when errors are present.
  • Page 192 Error Codes problem and will provide an error message label adjacent to the error code, i.e., MPEG PCR. The SCM4000 has a library of diagnostic Error Codes to help you pinpoint any problems. Note If you are viewing this manual on-line, major alarm...
  • Page 193 Table 4-2: SCM4000 Modulator Primary Error Codes Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action Status Errors (Some part of System is reporting an abnormal condition.) E220 Mod Ch1 OF Channel 1 FIFO Overflow Fault •...
  • Page 194 Table 4-2: SCM4000 Modulator Primary Error Codes (Continued) Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action E260 ASI1 LOS Loss of Signal - The given • Verify that a valid signal is If problem persists, possible interface doesn’t recognize or...
  • Page 195 Table 4-2: SCM4000 Modulator Primary Error Codes (Continued) Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action E26C SMPTE PLL SMPTE Phase Lock Loop - The • Verify that you have a clean If problem persists, possible phase lock loop is having trouble SMPTE stream.
  • Page 196 Table 4-3: SCM4000 Demodulator Primary Error Codes (Continued) Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action E248 Dem Cal Er Rate Calculation Error - The total • Increase the symbol rate, If problem persists, possible data rate exceeds the capacity for move the modulation to a hardware failure.
  • Page 197 Table 4-3: SCM4000 Demodulator Primary Error Codes (Continued) Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action E280 De Ch1 ULK Channel 1 Unlock Fault - An • Verify all data rates match If problem persists, contact MRC incorrect amount of data is coming those on the Modulator.
  • Page 198 Table 4-4: SCM4000 Encoder Parameter Errors Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action Status Errors (Some internal parameter is outside of allowable limits.) E080 COFDM/MPEG Comm Error • Contact technical staff. If problem persists, possible hardware failure.
  • Page 199 Table 4-5: SCM4000 Decoder Parameter Errors (Continued) Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action E121 MPEG Video Video Lock Fault - Unable to • Check and resolve errors If problem persists, possible decode video. E120 and E122 first, as both hardware failure.
  • Page 200 Table 4-6: SCM4000 Chassis Errors Error Suggested Technical Staff Error Message Meaning Suggested Operator Action Code Action Status Errors (Some internal parameter is outside of allowable limits.) E330 DCC 5.5 DCC 5.5 Volt Line Fault • Contact technical staff. If problem persists, possible hardware failure.
  • Page 201 Contact technical staff. Cables are disconnected. • Verify all cables are properly connected. • Contact technical staff. No video at transmitter. • Ensure that Encoder has a good video source. • Contact technical staff. SCM4000 Operator’s Guide/Tech Ref Manual Troubleshooting 4-11...
  • Page 202 Contact technical staff. Technical Support . Color Bars on with Service Name • Color bars turned on in and Heartbeat. Encoder. • Color bars set to Auto in Encoder and no video signal. SCM4000 Operator’s Guide/Tech Ref Manual Troubleshooting 4-12...
  • Page 203 Check and adjust the RF path to increase signal strength, move antennas, or remove obstacles to get a clearer transmission path. • Try moving to a different (cleaner) channel. • Contact technical staff. SCM4000 Operator’s Guide/Tech Ref Manual Troubleshooting 4-13...
  • Page 204 RF it should probably be off. hardware (low-side vs. high-side up- • Contact technical staff. converters and down-converters). This must be set correctly for the RF path being used. SCM4000 Operator’s Guide/Tech Ref Manual Troubleshooting 4-14...
  • Page 205 “Symbol Rate Calculations” Appendix on errors should be 0.000e+00 to 1.000e-07. page C-1 to determine bit rate vs. symbol rate vs. ”Monitor PRBS Bit Error Rate” on page 3-114. QPSK, 16QAM, 32QAM, and 64QAM modulation rates. SCM4000 Operator’s Guide/Tech Ref Manual Troubleshooting 4-15...
  • Page 206 Make the necessary changes and repeat from step 6. Turn off PRBS on the Modulator. See ”Monitor/ Change PRBS State” on page 3-74. Turn off PRBS on the Demodulator. See ”Monitor/ Change PRBS State” on page 3-112. SCM4000 Operator’s Guide/Tech Ref Manual Troubleshooting 4-16...
  • Page 207 The container and packing must be This chapter describes how to unpack and install your SCM4000 available in the event that a damage claim needs to be Single Carrier Modem.
  • Page 208 (0800 - 1900 hrs US ET) 5.5.1 Equipment Rack Friday The SCM4000 mounts into the mounting rails of a standard 19- inch (48.3 cm) equipment rack. It occupies 1 rack unit (1RU) of 8:00 AM - 5:00 PM Eastern Time (US) height.
  • Page 209 Always allow cause personnel injury. adequate ventilation. Lift the SCM4000 into place, lining up its mounting • If possible, install the SCM4000 in a climate-controlled holes with the holes in the rack mounting rails.

  • Page 210: Power Connections

    Ensure that the electrical supply is protected power source or from the mobile power source. by over-current protection devices as Power is distributed to the SCM4000 in one of two ways, required by the applicable electrical codes. depending upon the input power option ordered.
  • Page 211 The common ground must DC Return (-) Use 18 ga. stranded wire for lengths up to 10’ (3 m). Consult be connected to the SCM4000 ground terminal on the rear of the factory if you need longer unit. cabling.
  • Page 212 CAUTION Never modify a grounded power plug to • SCM4000 Demodulator/Decoder connect to an ungrounded receptacle. All audio inputs or outputs are through the SCM4000 AUDIO A and AUDIO B connectors. Audio Connections 5.8.1 Panel Connections The SCM4000 Modulator/Encoder and Demodulator/Decoder AUDIO A and AUDIO B connectors are present on the rear of configurations both use the same type of audio connectors.
  • Page 213 Pin-out connections for the Encoder section of the SCM4000 are shown in Table 5-2. Pin-out connections for the Decoder section of the SCM4000 are shown in Table 5-3. Left + Decoder digital audio outputs are available on the AUDIO B Digital - connector only.
  • Page 214 Changes to Presets are limited by the hardware options installed in the unit(s). All configurations of the SCM4000 contain an RS-232 connector located on the front panel behind an access cover. All SCM4000 5.8.3 Audio Configurations configurations contain different rear panel connectors, based on Each SCM4000 contains a maximum of four audio circuits.
  • Page 215 SCM4000 Demodulator rear panel connectors are shown in Figure 5-8. Figure 5-8: Demodulator Rear Panel Connectors AC Power IF IN T1/E1 IF OUT RS232/485 10/100 Option DC Power DS3/E3 DS3/E3 SMPTE SUM ALARM POWER IN Option T1/E1 RS232/ IF IN...
  • Page 216 SCM4000 Modulator/Encoder rear panel connectors are shown in Figure 5-10. Figure 5-10: Modulator/Encoder Rear Panel Connectors AC Power IF OUT T1/E1 RS232/485 IF IN VIDEO 10/100 AUDIO A AUDIO B Option DC Power SMPTE DS3/E3 DS3/E3 SUM ALARM Option POWER IN...
  • Page 217 Block diagrams and typical transmit/receive site system block Figure 5-12: Modulator Block Diagram diagrams for the individual SCM4000 configurations are listed in AC/DC E1/T1 E1/T1 POWER Table 5-4. 10/100 10/100 DS3/E3 DS3/E3 SMPTE RS232/ ALARM Table 5-4: SCM4000 Configuration Block Diagrams...
  • Page 218 INTERFACE BOARD VIDEO TS POWER ASI OUT MPEG ENCODER MODULATOR IF OUT CORE BOARD IMB/ POWER DISTRIBUTION COMMAND AND CONTROL AND FRONT PANEL MICROPROCESSOR ENCODER DISPLAY KEYPAD STATUS MODULATOR STATUS POWER SUPPLY CONTROL (RS232) SCM4000 Technical Reference Manual Installation 5-12...
  • Page 219 Figure 5-17: Modulator Simplex Transmit Site Block Diagram - Typical Simplex Transmitter Terminal SCM4000 ASI/DS3/E3 ASI/DS3/E3 ASI/SMPTE 310 70 MHz PLUS RS-232/RS-485 T1/E1/10/100 T1/E1/10/100 Digital IF Modulator SCM4000 Technical Reference Manual Installation 5-13...
  • Page 220 Figure 5-18: Demodulator Simplex Receive Site Block Diagram - Typical Simplex Receiver SCM4000 Terminal ASI/DS3/E3 ASI/DS3/E3 ASI/SMPTE 310 70 MHz PLUS RS-232/RS-485 T1/E1/10/100 Hotstandby Shelf T1/E1/10/100 Digital IF Demodulator SCM4000 Technical Reference Manual Installation 5-14...
  • Page 221 Duplex Transmit/ SCM4000 Receive Terminal ASI/DS3/E3 ASI/DS3/E3 ASI/SMPTE 310 70 MHz PLUS RS-232/RS-485 T1/E1/10/100 T1/E1/10/100 Digital IF Modulator SCM4000 ASI/DS3/E3 ASI/DS3/E3 ASI/SMPTE 310 70 MHz PLUS RS-232/RS-485 T1/E1/10/100 Hotstandby Shelf T1/E1/10/100 Digital IF Demodulator SCM4000 Technical Reference Manual Installation 5-15...
  • Page 222 Video/SDI Audio Simplex Audio MPEG Encoder Transmitter AES/EBU Terminal ASI* *ASI/DS3/E3 *ASI/DS3/E3 ASI/SMPTE 310 70 MHz PLUS RS-232/RS-485 T1/E1/10/100 T1/E1/10/100 Digital IF Modulator *When installed, the MPEG Decoder replaces and disables an ASI/DS3/E3 Port SCM4000 Technical Reference Manual Installation 5-16...
  • Page 223 Audio MPEG Decoder Simplex Receiver AES/EBU Terminal ASI* *ASI/DS3/E3 *ASI/DS3/E3 ASI/SMPTE 310 70 MHz PLUS RS-232/RS-485 T1/E1/10/100 Hotstandby Shelf T1/E1/10/100 Digital IF Demodulator *When installed, the MPEG Decoder replaces and disables an ASI/DS3/E3 Port SCM4000 Technical Reference Manual Installation 5-17...
  • Page 224 Front Panel RS-232 Connector 5.9.2 SCM4000 Rear Panel Connectors The front panel RS-232 connector is used for factory test. Front Details of rear panel signal connections on the various SCM4000 panel RS-232 connector pin-outs are shown in Figure 5-22 configurations are provided in Table 5-6 on page 5-19.
  • Page 225 Modulator, Modulator/ IF OUT 75 Ohm BNC The IF OUT 75 ohm BNC female connector provides the 70 MHz Demodulator, and Modulator/ output from the SCM4000 Modulator module. Encoder Demodulator, Modulator/ IF IN 75 Ohm BNC The IF IN 75 ohm BNC female connector provides the 70 MHz Demodulator, and Demodulator/ input to the SCM4000 Demodulator module.
  • Page 226 RS232/485 9- Pin, Male, “D” The RS232/485 connector provides either RS-232 or RS-485 Connector pin-outs for both the connection to the SCM4000. RS-232 and RS-485 connectors are shown in Figure 5-24 on page 5-21 . Pin-out connections for RS-232 operation are...
  • Page 227 Table 5-7: RJ-45 T1/E1 Connector Pin-Outs Figure 5-24: RS-232/RS-485 and SUM ALARM Connector Connector Pin-Outs Pin Number Signal Name Information RJ-45 Connector Tx Data- (Output) (Front View) Tx Data+ (Output) Rx Data- (Input) Rx Data+ (Input) SCM4000 Technical Reference Manual Installation 5-21...
  • Page 228 Normally Open Common Normally Closed 5.10 Cable Assemblies Table 5-10: RS-485 Connector Pin-Outs The alarm harness used to connect the SCM4000 to a DAR Plus Connector Signal Pin-Out radio is shown in Figure 5-25 on page 5-23, the DB-9 to DB-25...
  • Page 229 Figure 5-25: Alarm Harness SUM ALARM OUTPUT SCM4000 Technical Reference Manual Installation 5-23...
  • Page 230 Figure 5-26: DB-9 to DB-25 Wiring Harness WIRE LIST From J5 J4B-1 J4B-2 J4B-3 J4B-4 J4B-5 J4B-6 J3A-1 J3A-2 J3A-3 J3A-4 J3A-5 J3A-6 No Connection J2B-1 J2B-2 J2B-3 J2B-4 J2B-5 J2B-6 J1A-1 J1A-2 J1A-3 J1A-4 J1A-5 J1A-6 SCM4000 Technical Reference Manual Installation 5-24...
  • Page 231 AUDIO 2/R2 AUDIO 2/R2 Transmitter Receiver (Female) (Male) WIRING LIST AUDIO 1/R1 SIGNAL SHIELD AUDIO 2/L2 Transmitter AUDIO 2/L2 (Female) Receiver AIDIO 1/L1 SIGNAL (Male) SHIELD AUDIO 2/R2 SIGNAL SHIELD AUDIO 2/L2 SIGNAL SHIELD SCM4000 Technical Reference Manual Installation 5-25...
  • Page 232 Connect the SCM power cable to AC/DC power of the correct type and voltage. Verify the power source is turned on. Set the SCM4000 rear panel power switch to on ( I ). After approximately a 10 second delay, the normal power up sequence is as follows: The front panel green POWER LED illuminates.
  • Page 233 E-mail: support@mrcbroadcast.com Supported Repairs When contacting Technical Support, please have the following The SCM4000 is designed to be compact, rugged and reliable. information available: The SCM4000 requires specialized test equipment and software • Model number and serial number of the unit. This is to calibrate amplitude and frequency characteristics after repair.
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  • Page 235: Replacement Parts

    This chapter describes replacement parts available for the Figure 7-1: Power Fuse Location - AC Power Option SCM4000 Single Carrier Modem. IF IN Since there are no supported field repairs on the SCM4000, the only parts available are external cables and power fuses. POWER IN External Cables...
  • Page 236 Table 7-2: Fuse Ratings (Continued) Operating Voltage Fuse Rating 48 VDC 4.0A, 125V AGX, Fast Blow 24 VDC 7.5A, 32V AGC, Fast Blow SCM4000 Technical Reference Manual Replacement Parts...

  • Page 237: Theory Of Operation

    This chapter provides descriptive details about the design and • The SCM4000 can be configured as a Modulator, functioning of the SCM4000 Single Carrier Modem. This chapter Demodulator, or both a Modulator and a Demodulator. is intended to complement the information in the “Product...
  • Page 238 The single carrier modulation/demodulation scheme uses Operation symbol rates up to 20Ms/s. An extremely powerful equalizer The SCM4000 can be comprised of one or more of the following removes multipath and is coupled with a Reed Soloman Noise primary components: Reduction System to form a robust, reliable communications link.
  • Page 239 8.3.5 SCM4000 Modulator Description designed to go directly to the radio system for transmission. The The SCM4000 Modulator configuration receives up to four Demodulator will be presented with the same 70 MHz IF signal independent asynchronous data signals (channels) and after it has been sent over the radio link via the radio system.
  • Page 240 Figure 8-3: SCM4000 Demodulator Block Diagram A simplified SCM4000 Modulator block diagram is shown in Figure 8-2. AC/DC E1/T1 E1/T1 POWER IF IN SMPTE 10/100 10/100 DS3/E3 DS3/E3 RS232/ ALARM Figure 8-2: SCM4000 Modulator Block Diagram AC/DC E1/T1 E1/T1 POWER...
  • Page 241 MPEG Decoder and a Demodulator. This configuration provides analog video and audio output access, as one of the four data output channels, configured for your individual requirements. A simplified SCM4000 Demodulator/Decoder block diagram is shown in Figure 8-5.
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  • Page 243 Alarm Indication Signal (all one’s) Alternate Mark Inversion, line code format for traffic 4 FSK 4-state Frequency Shift Keying data. 8 PSK 8-Phase Shift Keying Average SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
  • Page 244 DC from entering the IDU. Composite A band or grouping of frequencies and/or subcarriers, (Baseband) including video, occupied by the signal in a radio transmission system. Also called Baseband. Code Runner 4 Channel-State Information SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
  • Page 245 34.368 Mbps data rate Discrete Fourier Transform Electronic Industries Association DMUX, Demultiplexer DEMUX An industry association that establishes various DQPSK Differential Quadrature (Quaternary) Phase-Shift standards. Keying Data Return Link SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
  • Page 246 Inter-Symbol Interference Finite Impulse Response International Standards Organization FM Video Modulator or FM Transmitter kbps Kilobits per second FPGA Field Programmable Gate Array Kilo (1,000) cycles per second Frequency-Shift Keying Local Area Network Firmware SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
  • Page 247 Provides 625 horizontal lines of resolution Normally Closed (Relay or switch contacts) with 50 lines per field. Not compatible with NTSC or No Connection SECAM. NICAM Near-Instantaneous Companding and Multiplexing Normally Open (Relay or switch contacts) SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
  • Page 248 Not compatible with NTSC or PAL. Not supported by this product. Receiver Control Unit Symbol Error Rate Received Carrier Level Setpt Set point Rcvr Receiver Single-Frequency Network Receive Data Signal Ground Radio Data System SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
  • Page 249 Video. Composite Video combines them into one signal. S/W or SW Software SYNTH Synthesizer 1.544 Mbps data rate Transmitter Control Transmitter Control Unit Transmit Data Transmitter Transmitter Unit Voltage Controlled Oscillator VCXO Voltage Controlled Crystal Oscillator Volts Direct Current SCM4000 Operator’s Guide/Tech Ref Manual Glossary...
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  • Page 251 Preset Settings • If your SCM4000 contains the Modulator option, refer to Figure B-1 on page B-2 to record Preset parameters or settings. Worksheets • If your SCM4000 contains the Demodulator option, refer Figure B-4 on page B-5 to record Preset parameters or settings.
  • Page 252 Set to On or Off. Channel 1 bit rate. Channel 2 bit rate. Channel 3 bit rate. Select QPSK, Channel 4 bit rate. 16QAM, 32QAM, or 64QAM. (See Notes) (See Notes) (See Notes) (See Notes) SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...
  • Page 253 > Serial EN: _____ > Baud: ______kbps Select 10Mb, 100Mb, Select baud rate from Select On or Off. Select On or Off. Select bit rate from 0.0 or Auto. 600bps to 115.2kbps. to 80.0Mb/s SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...
  • Page 254 Select On or Off. Select T1 or E1. 100 Ohm, or 120 Select On or Off. Select On or Off. Digital. Select -30 dBm or -36 Ohm. dBm. E1 Option: Select -12 dBm or -43 dBm. SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...
  • Page 255 Channel 1 bit rate. Channel 2 bit rate. Channel 3 bit rate. Channel 4 bit rate. 64QAM. PRBS Info * BER: _________ (See Notes) (See Notes) (See Notes) (See Notes) Observe bit error rate. SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...
  • Page 256 Select 800bps to T1 Options: Select T1 or E1. Select On or Off. 115.2kbps. Select <40M/ 0dBm, 40M-80M, 80M-120M, 120M- 160M, 160M- 200M, -7.5dBm, -15dBm, or -22.5dBm. E1 Options: 75 Ohm, 120 Ohm, or ILL. SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...
  • Page 257 Select AES/EBU, Select Mono or Select MPEG or Select Mono or Select MPEG or Select 4:2:0 or Select Low or TstTon, Analog, TstTon, Analog, Stereo. Off. Stereo. Off. 4:2:2. Standard. or SDI. or SDI. SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...
  • Page 258 > Audio Out:___ > NTSC Ped:___ * Audio_B: Locked * PktEr: ____E/S Observe Aud_B Select Dig or Observe number Select Off or On. status (Unlock, Ana. of packet errors Mono, or Stereo). per second. SCM4000 Operator’s Guide/Tech Ref Manual Preset Settings...

  • Page 259: Bit Rates And Symbol Rates

    RF channel bandwidth. This Appendix is provided as a guide to determine the symbol rate required for your SCM4000 based on your particular Data Table C-5 is a blank worksheet used to calculate your total bit Channel interface configurations.
  • Page 260 Table C-4, the rate should be rounded upward . To determine your symbol rate, complete Table C-5 using your SCM4000 Data Channel interface configurations. Then, locate your Table C-5 Total in the Summary Rate Total column of Table C-4. The symbol rates and valid modulation types are...
  • Page 261 Desired total bit rate (in Mb/s) = QPSK 16QAM 32QAM 64QAM 52.9847 Symbol Rates (from Table C-4) 14.6 11.7 Symbol rate must be between 500 Invalid Rate Valid Rate Valid Rate Valid Rate kb/s and 19.5 Mb/s. SCM4000 Technical Reference Manual Symbol Rate Calculations...
  • Page 262 Rate Total 11.6 12.1 1.544 12.7 13.2 2.048 13.8 14.3 14.9 15.4 16.0 16.6 17.1 17.7 18.2 18.8 34.368 19.0 19.3 19.9 10.2 10.5 10.8 11.1 10.5 11.3 19.392658 10.7 11.6 11.0 11.9 SCM4000 Technical Reference Manual Symbol Rate Calculations...
  • Page 263 11.0 18.3 15.3 16.6 13.3 11.1 18.6 15.5 16.9 13.5 11.2 18.8 15.7 17.1 13.7 11.4 19.0 15.8 17.4 13.9 11.6 19.2 16.0 17.7 14.1 11.8 19.5 16.2 18.0 14.4 12.0 19.7 16.4 SCM4000 Technical Reference Manual Symbol Rate Calculations...
  • Page 264 Table C-4: Symbol Rate Calculations (Continued) Summary QPSK 16QAM 32QAM 64QAM Rate Total 19.9 16.6 20.1 16.8 16.9 17.1 17.3 17.5 17.7 17.9 18.1 18.2 18.4 18.6 18.8 19.0 19.2 19.3 19.5 19.7 19.9 20.1 SCM4000 Technical Reference Manual Symbol Rate Calculations...
  • Page 265 Mb/s) = Symbol Rates (from Table C-4) ________________________ ___________________ _____________________ _____________________ Symbol Rate must be between 500 kb/s and Valid / Invalid Valid / Invalid Valid / Invalid Valid / Invalid 19.5 Mb/s SCM4000 Technical Reference Manual Symbol Rate Calculations...
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  • Page 267 ........A-3 Business Hours ......1-2, 1-3 SCM4000 Technical Reference Manual Index-1...
  • Page 268 Monitor or change T1/E1 line standard ..3-102 Transmitter to Studio Links ....2-1 Monitor Pseudo Random Bit Sequence Bit Error Rate 3- Documents SCM4000 Technical Reference Manual Index-2...
  • Page 269 Factory settings and hardware configurations ..3-21 Installing the SCM4000 ..... . . 5-2 FCC ........A-4 Introduction .
  • Page 270 IF OUT Connector ..... . 3-3 Monitor and/or change Spectrum Inverter state 3-70 Rear Panel RS232/485 Connector ..3-3 SCM4000 Technical Reference Manual Index-4...
  • Page 271 Power Requirements ......5-4 Mounting the SCM4000 ......5-2 power requirements .
  • Page 272 Powering the SCM4000 ..... . 3-11 Demodulator/Decoder block diagram ..2-8 PRBS ........A-6 Description .
  • Page 273 SCM4000 Demodulator ....8-4 SCM4000 Modulator ..... 8-3 SCM4000 Modulator/Demodulator .
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