PTX-PRO 13 GHz Transmitter User and Technical Manual Manual Part No. 400590-1 Rev.
Notices Microsoft®, Windows®, and Internet Explorer® are registered trademarks of Microsoft Corporation in the United States and/or other countries. About This Manual Part number 400590-1 Revision B June 2009 PTX-PRO 13 GHz Transmitter (PTX-PRO) Copyright The information contained in this manual remains the property of Microwave Radio Communications (MRC) and may not be used, disclosed, or reproduced in any form whatsoever, without the prior written consent of MRC.
WARNING - RF Power Hazard Note High levels of RF power are present in the unit. Exposure to RF or microwave power can cause burns and may be harmful to health. Remove power from the unit before disconnecting any RF cables and before inspecting damaged cables and/or antennas. Avoid standing in front of high gain antennas (such as a dish antenna) and never look into the open end of a waveguide or cable where RF power may be present.
1. [P] RF power input. Convert watts to milliwatts = Watts * 1000 2. [G] Antenna gain dBi. Convert to numeric gain = Antilog (dBi/10) 3. [EIRP] Multiply P * G 4. [R] Convert centimeters to feet = Centimeters * .0328 5. Square R 6. Multiply R² * 4π 7. [S] Divide (R² * 4π) into EIRP Figure 1: Digital Modulation S = Power Density in milliwatts per square centimeters.
Conventions Symbol Pay special attention to information marked in one of the following ways: WARNING CAUTION Meaning WARNING: General Warning. Risk of Danger Follow WARNINGS closely to prevent personal injury or death. WARNING: Risk of Electric Shock Follow CAUTIONS to prevent damage to the equipment. CAUTION: Electrostatic Discharge. Possible Damage to Equipment Fuse - Identifies fuses or their location.
Error Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Error Status - - - - - - - - - - - - - - - - - - - - - - - - - - - - Primary Error Code - - - - - - - - - - - - - - - - - - - - - - - Operational Problems - - - - - - - - - - - - - - - - - - - - - - - - Configurator Troubleshooting - - - - - - - - - - - - - - - - - - Configurator Error Messages - - - - - - - - - - - - - - - - Configurator Operational Problems - - - - - - - - - - - - - Contents Introduction - - - - - - - - - - - - - -
Power Requirements - - - - - - - - - - - - - - - - - - - - - - 6-5 Power Supply and Distribution - - - - - - - - - - - - - - - - 6-5 Power Cable Assemblies - - - - - - - - - - - - - - - - - - - 6-6 Additional Powering Notes - - - - - - - - - - - - - - - - - - 6-7 Grounding - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-8 Audio Connections - - - - - - - - - - - - - - - - - - - - - - - - - - 6-8 Front Panel Audio Connections - - - - - - - - - - - - - - - 6-8 Rear Panel Audio Connections - -
1 Introduction 1.1 For Whom It’s Written Approximate purchase date. • Firmware version, which appears on the PTX-PRO alphanumeric display at startup. - OR - This manual is intended for use by qualified operators, installers, and service personnel. Users of this manual should already be familiar with the basic concepts of radio, video, and audio. 1.2 • Related Documents • 1.4 • Van Portable Systems User and Technical Manual (part no. 400522-1) • Glossary of Terms and Abbreviations (Part No.
• Model number and serial number of the unit. This is located on a label on the bottom of each unit. • Approximate purchase date. • Firmware version, which appears on the PTX-PRO alphanumeric display at startup. - OR - • 1.5 Firmware version(s) displayed on the Main page of the MRC Radio Configurator (Configurator), when the Configurator software is connected to the PTX-PRO. Tell Us What You Think! We’d appreciate any comments or suggestions you have about this manual.
2 Product Description 2.1 microwave signal outputs for communications purposes. Figure 2-1: PTX-PRO Transmitter - Typical Chapter Overview This chapter provides an overall description of the PTX-PRO 13 GHz Transmitter (PTX-PRO) components, options, and capabilities. Here are the topics covered: Topic Page Options 2-1 2-1 Power Options 2-2 Mounting and Deployment Options 2-2 System Integration 2-3 Description 2.
PTX-PRO options consist of the following: Standard and High Definition Video All PTX-PRO configurations are available with Standard Definition (SD) or SD and optional High Definition (HD) video technologies. CAUTION Antenna Options The PTX-PRO is fully compatible with the MRC family of transmit antennas, including the following: • MRC MegaHorn Compact Horn • MRC 2, 3, and 4 ft. Parabolic Antennas. Refer to the “Installation” Chapter on page 6-1 for additional information. 2.2.
2.2.4 System Integration System Operation Once the PTX-PRO is connected and powered up, system settings can be selected or modified from the front panel of the PTX-PRO. System Configurations The PTX-PRO offers two levels of system configurations designed to match the needs of different personnel. For the field operator, the PTX-PRO has up to nine Presets that can be selected from the front panel. Each Preset controls key parameters such as modulation, frequency, and audio and video settings.
PTX-PRO User and Technical Manual Product Description 2-4
3 3.1 3.2 Overview of Controls, Indicators and Connectors Routine Operation This section describes the controls, indicators, and connectors used on the PTX-PRO. Chapter Overview This chapter provides basic information that will enable you to operate your PTX-PRO 13 GHz Transmitter (PTX-PRO). Here are the topics covered: Topic Controls, indicators, and connectors contained on the various configurations of the PTX-PRO are identified and described below.
RS 232 DB-9 Connector 3-5 3.2.1 Front Panel Controls, Indicators, and Connectors Each of these controls, indicators, and connectors are described in more detail in the following paragraphs. Controls, indicators, and connectors contained on the PTX-PRO front panel are shown in Figure 3-1.
WARNING LED Color A Major Alarm may also indicate a potential safety hazard. Shut down the PTX-PRO and disconnect power. Monitor options are dependent upon the Preset operating mode selected and provide current status of the PTX-PRO. Status includes, but is not limited to, the following: Meaning ----- Power is not on in the unit. Green Power is on and no errors are detected. Amber Minor Alarm - Power is on but some part of the system reports an abnormal condition that might impair performance.
Pressing the control switch causes an action to occur. Command Options • If the displayed setting is Chng Preset, Chng VI Mode, Chng SD/HD VI, Chng Clr Bar, or Set TX VVA, pressing the control switch causes the displayed setting to blink. Turning the control switch cw or ccw then displays the other options for that setting. When the desired option is displayed, pressing the control switch selects that option. panel are shown in Figure 3-2.
DC Fuse The rear panel DC fuse provides DC input power protection for units used with DC power sources. Connect the power cable to the power source. RS 232 DB-9 Connector The RS 232 DB-9 connector provides connections for factory test or to a Microsoft Windows-based PC when using the Configurator software. The connector also provides connections for Wayside data. If you are unsure of the power requirements or the connections, refer to the “Installation” Chapter on page 6-1.
Accessing the Control Screen You can access the Control screen at any time by turning the control switch counterclockwise (ccw). Power Down 1. 2. 3.4 Set the PWR switch to off ( 0 ). Set the power source power to off. Default to Main Screen If you do not turn or press the control switch within a period of approximately 7 seconds, the display will default to the Main screen.
Topic Page Using the Monitor Screens in COFDM Mode 3-7 Using the Monitor Screens in ASI/SDI Input Mode 3-7 Using the Monitor Screens in Ext IF Input Mode 3-7 Using the Monitor Screens in LMS-T Mode 3-7 3.5.1 utilizes a single carrier modulator and supplies a configurable LMV-S signal to the transmitter RF output and MONITOR connectors. This mode is operational for QPSK and 16 QAM modulation formats. See Figure 3-8 on page 3-11 for the LMS-T Monitor Menu Map.
Figure 3-5: COFDM Monitor Menu Map - Typical This line will display Frequency for Preset selected. Monitor Menu Access: TURN Control Switch cw to view Monitor options. This line will display the same information as the Main Screen. TX Attn 0.0dB Band 13 GHz Displays will alternately appear. Mode COFDM Main Screen QPSK ASI: 8MHz Mb COQPSK FE1/2 8MHz GI1/8 Preset NTSC NoPdstl Vid In 4:2:0 Displays power level and Channel number.
Figure 3-6: ASI/SDI Input Monitor Map - Typical Monitor Menu Access: TURN Control Switch cw to view Monitor options. This line will display Frequency for Preset selected. This line will display the same information as the Main Screen. TX Attn 0.0dB Band 13 GHz Main Screen Preset Displays power level and Channel number. Mode ASI/SDI In QPSK ASI: 8MHz IF CW Mb OFF Displays will alternately appear.
Figure 3-7: Ext IF Input Monitor Map - Typical Monitor Menu Access: TURN Control Switch cw to view Monitor options. This line will display Frequency for Preset selected. This line will display the same information as the Main Screen. TX Attn 0.0dB Main Screen Preset Displays power level and Channel number. Band 13 GHz NOTE All Monitor Screens revert to the Main Screen after 7 seconds of inactivity.
Figure 3-8: LMS-T Monitor Menu Map This line will display Frequency for Preset selected. Monitor Menu Access: TURN Control Switch cw to view Monitor options. This line will display the same information as the Main Screen. TX Attn 0.0dB Band 13 GHz Mode LMS-T Displays will alternately appear. Main Screen QPSK ASI: 10MHz Mb QPSK FE2/3 10MHz GI1/8 Preset NTSC NoPdstl Vid In 4:2:0 Displays power level and Channel number.
3.6 PTX-PRO Control Operations This section describes how to configure your PTX-PRO using the front panel control switch. Turning the front panel control switch counterclockwise (ccw) controls transmitter functions including changing Presets, changing the video input (VI) mode, changing SD or HD video inputs, changing color bar settings, and setting RF attenuation levels. See ”Front Panel vs.
Figure 3-9: Control Menu Map Control Menu Access: TURN Control Switch ccw and PRESS to activate. Main Screen NOTE The Chng VI Mode, Chng SD/HD VI, and Chng Clr Bar Control Screens are present only if the Preset operating mode is COFDM or LMS-T. SD Mode only 1) PRESS to activate 2) TURN to change 3) PRESS to select (SD Option) Preset Displays power level and Channel number.
3.7 Front Panel vs. Configurator Settings Table 3-1: Front Panel vs. Configuration Setting (Continued) The design of the PTX-PRO and the Configurator software makes commonly available settings accessible from the PTXPRO front panel switches and alphanumeric display and more advanced settings accessible through the Configurator software. A summary of settings that can be controlled by each method is shown in Table 3-1. Table 3-1: Front Panel vs.
Table 3-1: Front Panel vs. Configuration Setting (Continued) Available Settings Parameter Set Using Control Switches Set Using Configurator SD Video Input Mode (NTSC Operation) • SDI 525 In ✔ • NTSC In ✔ • NTSC No Pedestal ✔ SD Video Input Mode (PAL Operation) • SDI 625 ✔ • PAL In ✔ • PAL M In ✔ • PAL N In ✔ • 720p @ 50 Hz ✔ • 720p @ 59.94 Hz • HD Video Input Mode Video Delay Chroma Format Table 3-1: Front Panel vs.
Table 3-1: Front Panel vs.
Troubleshooting 4 4.1 WARNING Chapter Overview A Major Alarm may also indicate a potential safety hazard. Shut down the PTX-PRO and disconnect power. This chapter describes how to troubleshoot your PTX-PRO 13 GHz Transmitter (PTX-PRO). Here are the topics covered: Table 4-1: Power LED Indications Topic Page Power LED 4-1 LED Color Display Messages 4-2 ----- Power is not on in the unit. Error Codes 4-3 Turn on power, as required. Operational Problems 4-6 Green None.
4.3 Display Messages See Table 4-2 for descriptions of the messages and what to do when they appear. One of the ways the PTX-PRO will alert you to problems is by error messages on the PTX-PRO front panel displays. These are displayed on the Monitor screens. Table 4-2: Display Messages Message Not On Chnl No Video Meaning Channel frequencies defined in the Channel Plan for that band are not being recognized. The PTX-PRO is unable to lock onto video signal.
4.4 Error Codes 4.4.1 The PTX-PRO has a library of diagnostic error codes to help you pinpoint any problems. Error Status The significance of the Error Status digit depends on what Primary Error Code is being reported. See Table 4-3. These error codes: • • Table 4-3: Error Status Digit Are displayed on the front panel display, on the Error Code Screen. Status Digit Cause the PWR status LED to glow amber, alerting you to investigate the problem.
Table 4-4: Primary Error Codes Error Code Meaning Suggested Operator Action Suggested Technical Staff Action Status Errors (Some part of System is reporting an abnormal condition.) E000 E001 E020 E021 E080 Error Summary Message ID TX IF Fault TX RF Fault Communication Failure with the COFDM/MPEG Module • Provides error summary. • Contact technical staff. • Displayed when a specific status message times out. • Contact technical staff. • Verify condition of all cable connections.
Table 4-4: Primary Error Codes (Continued) Error Code E034 Meaning TX Temperature Error Suggested Operator Action Suggested Technical Staff Action • Check PTX-PRO to be sure it is not too close to sources of heat. Relocate PTX-PRO, if possible. • Verify PTX-PRO has room around it for air circulation. Move objects preventing air flow. • Contact technical staff. • Contact technical staff. Call MRC Technical Support.
4.5 Operational Problems For video problems, See Table 4-5; for general system problems, See Table 4-6 on page 4-7. Information provided on the following pages will assist you in troubleshooting problems that arise in the operation of your PTXPRO. Table 4-5: Video Problems Problem Possible Cause Suggested Technical Staff Action Suggested Operator Action Video Problems No video.
Table 4-6: General System Problems Problem Possible Cause Suggested Operator Action Suggested Technical Staff Action General System Problems PWR LED on PTXPRO is off when PWR switch is set to on ( I ). PWR LED on PTXPRO is amber. Missing input power. PTX-PRO is indicating a Minor Alarm. • Make sure power cable is connected properly. • Check input power voltage. • Check both AC and DC power fuses. • Verify power source is turned on. • Call MRC Technical Support. • Contact technical staff.
Table 4-7: Configurator Error Messages (Continued) Table 4-7: Configurator Error Messages Error Message Connection failed on [COM port name] Querying [Setting] failed... Possible Cause Error Message Suggested Action Configuration File Corrupt PTX-PRO system power is off. Turn PTX-PRO system power on. RS-232 cable is disconnected. Connect cable. Ensure connectors are fully seated on both ends. RS-232 cable is defective. Replace cable. Installed PTX-PRO hardware is defective.
Problem Configurator crashes when trying to run. Possible Cause Program files damaged. Use the “Add/Remove Programs” function in Microsoft Windows Control Panel to uninstall the Configurator, then reinstall it. Problem with PC or its disk drive. Contact your PC service provider. AND / OR Get “Runtime Error” message.
PTX-PRO User and Technical Manual Troubleshooting 4-10
5 Advanced Operation 5.1 Chapter Overview This chapter describes how to use the MRC Radio Configurator (Configurator) software to configure settings in the PTX-PRO 13 GHz Transmitter (PTX-PRO). This information is provided and intended for use by the technical staff. A summary of settings that can be made using the front panel control switches and those that can be made using the Configurator software is provided in “Front Panel vs. Configurator Settings” on page 3-14.
5.2.4 can be saved to a file on your PC and can be recalled at a later date. System Rules CAUTION Do not make any configuration changes to your PTX-PRO while the PTX-PRO is connected to a radio system that is actively transmitting. Attempts to program configuration changes into a PTX-PRO when the radio system is actively transmitting will interrupt broadcast operations. When configuring your PTX-PRO on-line (connected to a PC), the following system rules must be followed.
5.2.6 Channel Plans New channel plans can be created from scratch, updated from existing files on your PC, or may be loaded in from a PTX-PRO and modified. Once a channel plan is created or modified and saved, you can load the channel plan into your PTX-PRO. The steps required to load channel plan changes are provided in the applicable procedures provided in this Chapter. Once a channel plan is created or modified, it should be saved to a file on your PC.
Figure 5-1: Determine Licensed Options MRC Configurator Icon Main Page Licensing Tab Main Tab Radio Control Connect Select COM port required Radio Mode, MPEG, COFDM, LMS-T, Channel Plan, and Licensing Tabs are displayed PTX-PRO User and Technical Manual Disconnect Close Configurator window Licensed Features COM Port menu Radio Control Record licensed options highlighted in green Advanced Operation 5-4
5.3.3 Create New Configuration On-Line The flowchart required to create new Preset configuration settings and channel plans in the on-line mode is contained in Figure 5-2 thru Figure 5-6.
Figure 5-3: Create New Configuration On-Line - Sheet 2 of 5 Note Perform all operations on the MPEG page for each active Preset, as required.
Figure 5-4: Create New Configuration On-Line - Sheet 3 of 5 From Figure 5-3 B Wayside State Select Off, IRD Compatible, or Strata Compatible, as required Audio A and Audio B Encryption Type E Key and E ID 1 Key Select OFF, BISS-1, or BISSE, as required Enter E Key and E ID data Enter 1 Key data PID Info Baud Select 1200, 2400, 4800, 9600, 19200, or 38400, as required (Active in IRD Compatible and Strata Compatible only) Note Type Mode Input BISS encryption is a factory-enabled option.
Figure 5-5: Create New Configuration On-Line - Sheet 4 of 5 Note Note Perform all operations on the COFDM page for each active Preset, as required. From Figure 5-3 C Perform all operations on the LMS-T page for each active Preset, as required.
Figure 5-6: Create New Configuration On-Line - Sheet 5 of 5 From Figure 5-5 D Channel Plan Tab Main Tab Radio Control Disconnect Close Configurator Window Currently Selected Band Observe Currently Selected Band indicates High Band (13 GHz) Offset - Enter minus offset frequency for each channel, as required Center Offset + Enter center frequency for each channel, as required Enter plus offset frequency for each channel, as required Radio Control And/Or Save All Settings to File Program All S
5.3.4 Load and Modify Configuration Settings On- Line The flowchart required to load Preset configuration settings and channel plans from the radio and to modify the settings in the on-line mode is contained in Figure 5-7 thru Figure 5-11.
Figure 5-8: Load and Modify Configuration Settings On-Line - Sheet 2 of 5 Note Perform all operations on the MPEG page for each active Preset to be modified, as required.
Figure 5-9: Load and Modify Configuration Settings On-Line - Sheet 3 of 5 From Figure 5-8 B Wayside State Select new State option, as required Audio A and Audio B Encryption Type E Key and E ID Select new encryption Type option, as required Enter E Key and E ID data, as required PID Info 1 Key Baud Select new Baud rate, as required (Active in IRD Compatible and Strata Compatible only) Enter 1 Key data Type Note BISS encryption is a factory-enabled option.
Figure 5-10: Load and Modify Configuration Settings On-Line - Sheet 4 of 5 Note Note Perform all operations on the COFDM page for each active Preset, as required. From Figure 5-8 Modulation Type Select new Modulation Type option, as required C Perform all operations on the LMS-T page for each active Preset, as required.
Figure 5-11: Load and Modify Configuration Settings On-Line - Sheet 5 of 5 From Figure 5-10 D Currently Selected Band Observe the Currently Selected Band indicates High Band (13 GHz) Channel Plan Tab Main Tab Radio Control Disconnect Close Configurator window Offset - Modify minus offset frequency for each channel, as required Center Offset + Modify center frequency for each channel, as required Radio Control Modify plus offset frequency for each channel, as required And/Or And/Or Save All
5.3.5 Load Configuration File into Radio On-Line The flowchart required to load a configuration and channel plan from a file on your PC into your PTX-PRO is contained in Figure 5-12.
5.3.6 Change Preset Names in On-Line Mode The flowchart required to change Preset names in the on-line mode is contained in Figure 5-13.
5.3.7 Create Channel Plan Offline The flowchart required to create new channel plans in the offline mode is contained in Figure 5-14. Figure 5-14: Create Channel Plan Offline MRC Configurator Icon Main Page Channel Plan Tab Close Configurator window Offline Programming Radio Pull-Down Menu Low Band PullDown Menu Select PTX-PRO Dual Band Select option High Band PullDown Menu Select 13 GHz (12.7 – 13.
5.3.8 Modify Channel Plan in Offline Mode The flowchart required to modify a channel plan contained in a file on your PC is contained in Figure 5-15.
5.3.9 Load and Modify a Channel Plan On-Line The flowchart required to load a channel plan in your radio and to modify the plan in the on-line mode is contained in Figure 5-16.
5.3.10 Load Channel Plan File into Radio On-Line The flowchart required to load a channel plan from a file on your PC into your PTX-PRO in the on-line mode is contained in Figure 5-17.
5.3.11 Add Licensed Option The flowchart required to add new licensed options to your PTX-PRO is contained in Figure 5-18. The license required to add a new licensed feature must be obtained from MRC prior to performing this procedure.
PTX-PRO User and Technical Manual Advanced Operation 5-22
6 Installation 6.1 Chapter Overview This chapter describes how to unpack and install your PTX-PRO 13 GHz Transmitter (PTX-PRO). The topics covered in this chapter are as follows: Topic • Be sure to locate all parts and accessories. • Verify that the items shipped agree with those listed on the packing list. • DO NOT discard the container or packing material until you have inspected the equipment and are sure there is no shipping damage.
6.5 Mounting and Cabling CAUTION of the PTX-PRO using four 1/2-inch long, #6-32, flat head screws. The Quick Release Mount typically remains attached to the PTX-PRO. The Quick Release Mount and PTX-PRO are then attached to the Dovetail Adapter Plate machined into the MRC tripod mount. See Figure 6-1. Be sure the power being supplied matches the power required by the equipment. Figure 6-1: Quick Release Mount on MRC Tripod CAUTION CAUTION Power supply cords and cables must be protected.
Note Figure 6-2: Dovetail Adapter Plate on Non-MRC Tripod The versatility of the Quick Release Mount and a mating Dovetail Adapter Plate allow the Dovetail Adapter Plate to be attached to the bottom of the PTX-PRO and the Quick Release Mount to be attached to a non-MRC tripod, or vice versa. The method you use to attach the PTX-PRO to a nonMRC tripod is your choice.
Figure 6-3: Quick Release Mount on Non-MRC Tripod Flat Head Screws Dovetail Adapter (4 Each) Plate (Attached to PTX-PRO) Quick Release Mount Figure 6-4: Quick Change Adapter on QuickSet Tripod Mount - Typical QuickSet Quick Pan Head Screws, Change Adapter Lock Washers, and (Attached to PTXFlat Washers (4 Each) PRO) Tripod Mount Locking Clamp Tripod Mount QuickSet Tripod Mount Mounting - Non-MRC Tripod (Option 3) A third option is available to mount a PTX-PRO to a non-MRC tripod that contains a QuickSet t
Figure 6-5: Complete Tripod Installation - Typical Power Consumption: 6.6.2 Antenna Lock Plate 50 watts nominal Power Supply and Distribution AC or DC power is supplied externally, from an external power source. PTX-PRO (Typical) CAUTION Antenna (2 Options Shown) Avoid possible equipment damage. If you are using a DC power source for your PTXPRO, do not exceed 36 volts DC input power. Power is distributed to the PTX-PRO through the front panel PWR connector on the PTX-PRO.
Pin designations on the front panel PWR connector are shown in Table 6-1. Table 6-1: Front Panel AC/DC Power Connector Pin-Outs Connector Information Pin-Out 12-Pin, Male, Panel-Mount H J A B G K M F C E 6.6.3 L D Signal Description A 90 to 264 VAC B N/C C Neutral D N/C E N/C F N/C G N/C H N/C J DC (+) K DC (-) L AC Ground / DC (-) M DC (+) wiring diagram of the 120 VAC Power Cable Assembly. The 240 VAC Power Cable Assembly comes with a power connector on one end only.
Figure 6-6: 120 AC Power Cable Assembly 120 VAC Neutral Ground Figure 6-8: DC Power Cable Assembly Black DC Negative A White C Green L DC Positive Black L K Red M E J F A B B D C G NC H Neutral Ground Black E J F K G M H 6.6.4 Figure 6-7: 240 VAC Power Cable Assembly 240 VAC D NC Additional Powering Notes A White C Green CAUTION Be sure the power being supplied matches the power required by the equipment. CAUTION Power supply cords and cables must be protected.
CAUTION Ensure that the electrical supply is protected by over-current protection devices, as required by the applicable electrical codes. both Audio A inputs. Connector pin-outs are shown in Figure 69. Pin-out connections are shown in Table 6-2. Figure 6-9: XLR Connector Pin-Outs Check the electrical supply to be sure it can provide all the power needed at the site without overloading. Power ratings for equipment can be found on a rating plate, usually on the rear panel.
6.8.2 Rear Panel Audio Connections The PTX-PRO provides a maximum of four audio circuits. Each audio circuit is a 3-wire balanced circuit capable of carrying one tone or voice signal. An audio circuit can carry one analog balanced channel or two digital AES/EBU channels. The rear panel AUDIO 3 & 4 10-pin female connector receives balanced audio inputs for audio channels 3 and 4. This connector is used for both Audio B inputs. The mating connector that plugs into this panel connector is described below.
Figure 6-10: Audio XLR Cable Assembly 38.00" [96.52 cm] 22.00" [55.88 cm] Face View 6.8.4 AES/EBU Audio Input four individual channels. All four circuits are balanced inputs, with each pair (+ and -) sharing one ground. The PTX-PRO will only provide digital audio when operating in digital mode. In digital mode, the PTX-PRO receives a digital signal and routes the data to the MPEG encoder and then to the COFDM modulator.
PRO. Video input selections are made by selecting Presets created using the Configurator software. Table 6-5: Signal Connections Video input options for the PTX-PRO are shown in Table 6-4. Unit Table 6-4: Video Input and Output Signal Options Operation Mode MPEG/ COFDM IF Out Ext IF In 6.
6.10.1 PTX-PRO Programming connections to the serial port through a Multipurpose Data Cable provided by MRC. The RS-232 data connection is used when programming the PTX-PRO using the Configurator software running on a Microsoft Windows-based PC. Compatibility MRC has verified that the Wayside channel is compatible with the following receivers: The PTX-PRO is configured to be a DTE device.
Figure 6-12: Wayside and Serial Interface Connections RS-232 Serial Connection to PC or Laptop Figure 6-13: RS-232 Panel Connector DB-9 Male Front View TX or RX Multipurpose Data Cable 1 2 3 4 5 6 7 8 9 RS-232 Wayside Data Channel Signal (i.e., GPS Data) 6.10.4 The cable connects to the RS 232 connector on the PTX-PRO and has connections for both the Wayside channel and the PC or laptop required for use with the MRC Radio Configurator (Configurator) software.
connected to a DCE device, a null modem cable must be connected between the DCE device and the Multipurpose Data Cable DB-9 female WAYSIDE connector. If connected to a DTE device, a null modem cable cannot be used, but a straight pin-topin extension cable will be required. • This cable is needed to connect to the PTX-PRO data connector (DB-9) on one end and connect to the device server on the other (a DB-25 connector in the case of the UDS-10).
Figure 6-16: Network Interface Cable To PTX-PRO RS-232 Connector DB-9 (Male) RD Radio Data TD SG 2 3 TD RD Transmit Data 5 SG Wayside Data Receive Data 7 Signal Ground Wayside Data to External Device 8 Wayside Data from External Device (Not Used) PTX-PRO User and Technical Manual Installation Transmit Wayside Data Receive Wayside Data 6-15
Figure 6-17: Multipurpose Radio and Wayside Data Cable 5 9 1 6 1 6 5 9 RADIO (M) RADIO/ WAYSIDE (F) 9 6 5 1 WAYSIDE (F) 1 2 3 4 5 1 2 3 4 RADIO/WAYSIDE (F) 5 6 7 8 RED WHT BLK WHT RED 9 RADIO (M) 6 7 8 9 1 2 3 4 5 WAYSIDE (F) 6 7 8 9 6.11 • Powering Up When the wiring and mounting are completed, it is time to power up the PTX-PRO. As good practice, you should make a final check before power is applied. 6.11.
2. Verify all front and rear panel cables and connectors have been properly connected. Connect the power cable to AC or DC power of the correct voltage and polarity. Verify the power source is turned on. Set the PWR switch to I (on). The normal power-up sequence is as follows: 3. 4. - - - transmitting and receiving video and audio. If you have any problems, refer to the “Troubleshooting” Chapter on page 4-1 to determine the cause. 6.
Note 5. If any version of the MRC Radio Configurator is already installed, you must uninstall it before attempting to install a new version. Figure 6-20: Select Installation Folder Window Use the “Add/Remove Programs” feature in the Microsoft Windows Control Panel to do this. 1. 2. 3. 4. Select the Next option button and observe the Select Installation Folder window is displayed. See Figure 6-20. Locate the CD that was provided with your PTX-PRO. Insert the CD into your computer CD drive.
Figure 6-21: Confirm Installation Window 8. When the software installation is complete, observe the Installation Complete window is displayed. See Figure 6-23. Figure 6-23: Installation Complete Window 7. Select the Next option button and observe the Installing MRC Radio Configurator window is displayed. See Figure 6-22. 9. Figure 6-22: Installing MRC Radio Configurator Window Select the Close option button and observe the MRC Radio Configurator icon is displayed on your desktop. See Figure 6-24.
6.13 Product Modifications The product you purchased has been carefully designed and tested, and is warranted to meet specifications when connected and operated as described in this manual. Note If you modify a product without authorization from MRC, you will void the warranty.
7 7.1 Replacement Parts Table 7-1: PTX-PRO Cables and Connectors (Continued) Description Chapter Overview Null Modem Cable Connects PTX-PRO RS-232 connector to PC RS-232 connector. For programming and monitoring data only. See ”Data Connections” on page 6-11. Audio Input Connector Connects to PTX-PRO AUDIO 3 & 4 connector for Audio 3 and 4 inputs. See ”Data Connections” on page 6-11. Multipurpose Data Cable Connects to PTX-PRO RS 232 connector to monitor Wayside and Radio data.
Table 7-2: PTX-PRO Mounting Hardware (Continued) Description Quick Release 7.4 Table 7-3: Fuse Ratings Comments Provides quick release mounting capabilities of the PTX-PRO units on an MRC tripod Power Fuses The PTX-PRO configurations operate on the following external AC or DC power sources: • 90 to 264 VAC, 50/60 Hz • +11.0 to +36.0 VDC Power fuses for the AC and DC configurations of the PTX-PRO are located on the rear panel of the unit. See Figure 7-1 .
8 8.1 Theory of Operation Figure 8-1: PTX-PRO System Architecture A U D IO / AES/EBU Chapter Overview SD I/SD / HD This chapter provides technical details about the design and functioning of the PTX-PRO 13 GHz Transmitter (PTX-PRO). This chapter is intended to complement information contained in the “Product Description” Chapter on page 2-1.
All PTX-PRO configurations are available with Standard Definition (SD) or SD and optional High Definition (HD) video technologies. The PTX-PRO can accept a wide variety of signal formats and includes an RF up-converter for use in transporting signals over a microwave link. The PTX-PRO also contains an MPEG/ COFDM module. The PTX-PRO contains a universal power supply and can operate on 90 to 264 VAC, 50/60 Hz or +11.0 to +36.0 VDC. 8.
Figure 8-2: Standalone 13 GHz PTX-PRO Block Diagram RF 13 GHz Mixer Band Pass Filter 13 GHz Power Amplifier LO 13 GHz RF Output IF X4 Up Converter 70 MHz SDI/SD/ HD SDI/ASI INPUT AUDIO 1 SIGNAL INPUT HD Encoder/ Modulator AUDIO 2 Baseband Combiner MONITOR AC Input AUDIO 3 & 4/ AES/EBU ASI Output AC Fuse DC Input PTX-PRO User and Technical Manual AC to DC Converter Front Panel DC Fuse DC Power Distribution and Control Theory of Operation RS232 8-3
PTX-PRO User and Technical Manual Theory of Operation 8-4
Index load configuration file into the PTX-PRO . . . . . . . . . . 5-3 system rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notices-iv Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notices-i Creating a Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Customer-created channel plans . . . . . . . . . . . . . . . . . . 2-1, 2-3 A About This Manual . .
O Frame or Chassis . . . . . . . . . . . . . . . . . . . . . . Notices-iv Protective Earth . . . . . . . . . . . . . . . . . . . . . . . Notices-iv Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8 On-Line Viewing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notices-iv Operational Problems General System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PTX-PRO Configuration Utility Creating a Configuration . . . . . . . . . . . . . . . . . . . . . . 5-3 PWR LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 PWR switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 RF output connector . . . . . . . . . . . . . . . . . . . . . . .3-4 RS 232 connector . . . . . . . . . . . . . . . . . . . . . . . . .3-5 SDI/ASI INPUT connector . . . . . . . . . . . . . . . . . . .3-3 SDI/HD/SD connector . . . . . . . . . .
Command and Control Power Supply . . . . . . . . . . . . .9-2 MPEG/COFDM Encoder/Modulator Module . . . . . . . .9-2 System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . .9-1 Technical details . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 Error Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 Primary Error Code . . . . . . . . . . . . . . . . . . . . . . . . . .
