User Manual Expedio D-ENG LINK Doc.
Table of Contents ii Expedio Manual Dwg # 602-13729-01; Revision Levels: Section Drawing No: REV Revised / Released Reason Expedio -20 602-13729-01 A SN /10/21/02 NEW Expedio-20 602-13729-01 B SN /12/03/02 Add FCC Requirements see 3.2.
iii Table of Contents Table of Contents 1 SYSTEM DESCRIPTION............................................................................1-1 1.1 INTRODUCTION .......................................................................................................... 1-1 1.2 SYSTEM FEATURES ..................................................................................................... 1-2 1.2.1 Transmit Chain...............................................................................................
Table of Contents 4 iv FRONT PANEL OPERATION.....................................................................................................................4-1 4.1 INTRODUCTION .......................................................................................................... 4-1 4.2 FRONT PANEL OPERATION ........................................................................................... 4-1 4.2.1 LCD Display ...........................................................................
1 System Description 1.1 Introduction The digital system comprises of a Transmitter and a Receiver, whose output RF frequency is in the Band 1.9GHz to 2.9GHz. The RF band is approximately 300MHz. Transmitter is comprised of a MPEG2 Video Encoder which will take composite Video and digitize this and compressed, the output transport stream [DVB-TS] is then converted to DVB-ASI, which is then Modulated with COFDM (or any other digital modulators).
Installation 1-2 1.2 System Features 1.2.1 Transmit Chain RF ouput to Antenna The Block diagram below shows the various functional units that make up the transmitter. Video MPEG 2 ENCODER COFDM MODULATOR DVB-T Double up Convertor Power Amplifier 2 Audio Channels Figure 2: Transmit Chain 1.2.2 Receive Chain Recever The Block diagram below shows the various functional units that make up the Receiver.
Installation 1-3 1.2.3 Video Encoder Video input is Composite video at 75ohms BNC, with a monitor port available. There are 2 Audio channels whose input are through the XLR connections. The data is encoded using advanced MPEG-2 encoding technology. The compressed data is formatted and transmitted using the DVB-ASI standard. The unit compresses the incoming video using an adaptive field/frame MPEG-2 Main Profile @ Main Level algorithm, achieving variable bit rate of 512 Kbps-12 Mbps.
Installation 1-4 Audio Input Audio Input Format Two mono or single analog stereo inputs - Balanced Output Interfaces Digital Interface 602-13729-01 Rev B DVB-ASI Expedio Digital Electronic News Gathering Radio
Installation 1-5 1.3 Typical Configurations 1.3.1 Transport Rate Table 1-1 provides basic data channel capabilities for the Expedio. See (Installation Section) for more detailed information. Table 1-1. Expedio Data Channel Configurations A 8 MHz DVB-T COFDM Payload Data Rate Bit Rate (Mbit/s @ each Guard Interval Modulation Code Type Rate A 1/2 6.032086 5.854671 5.529412 4.976471 QPSK 2/3 8.042781 7.806228 7.372549 6.635294 2 3/4 9.048128 8.782007 8.294118 7.
Installation 1-6 1.3.2 Standalone Operation The Expedio may be used as a standalone simplex radio with a internal in the MPEG2 Encoder / Decoder system or utilize external MPEG2 units and feed DVB-ASI with 188byte format on the Input and have DVB-ASI out coming out on the Receiver.
1-7 Installation 1.4 Regulatory Notices FCC Part 15 Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Installation 1-8 1.5 System Description 1.5.1 Introduction The product is a simplex digital radio. The following sections describe the TX system, RX system, followed by sub-system components. Please reference the accompanying block diagrams for clarification. We will follow the typical end-to-end progression of a radio system starting with the TX baseband inputs, to the COFDM modulator, followed by the upconversion process and the power amplifier.
Installation 1-9 Backplane Digital Radio Figure 5: Location of the EXPEDIO Backplane and Power Amplifier The NMS/CPU card incorporates microprocessor and FPGA logic to configure and monitor the overall operation of the system via front panel controls, LCD screen menus, status LEDs and the bar graph display. Module settings are loaded into the installed cards and power-up default settings are stored in non-volatile memory.
Installation 1-10 The COFDM Modulator accepts the aggregate data stream via the DVB-ASI Port on the rear panel (see Figure 6 above). The modulated signal is provided via low IF of 9MHz which is converted --------------- IF UPCONVERTOR 70MHz SAW 9MHz I/P 70MHz IF OUT Pad 8dB 79MHZ XTAL OSCILLATOR IF Upconvertor Figure 7: IF Upconverter Block Diagram The resultant carrier is translated up to 70 MHz by the IF Upconverter.
Installation 1-11 1.5.3 RF Double Upconverter Expedio Double Up-Converter EXCITER OUT +5 dBm 1990-2110 MHz 2450-2500 MHz 70 MHz RF IN -10dBm AGC 45dB 13dB 480MHZ/ 25MHZ 14dB 0-15dB 480MHZ/ 25MHZ 19dB 0-5dB 17dB 12dB 70MHZ/ 9MHZ 550 MHZ SYNTH 480 MHZ SYNTH 1.97-2.02 GHZ CONVERTER CONVERTER ALC DC CONVERTERS +5 Vdc/ 200 mA +10 Vdc/ 250 mA +12V I2C PA telem MICROCONTLR REF OSC I6 MHZ INTERNAL 2-2.5 GHZ 1.51-1.
Installation 1-12 1.5.5 RF First Downconverter Single Down-Converter P2 480 MHz UHF OUT 1: 2050 MHz/ 120 MHz 2: 2475 MHz/ 50MHz 13dB 17dB 480MHZ/ 25MHZ 14dB RF input -40 to -90 dBm 1990-2110 MHz 2450-2500 MHz SYNTH 1.51-1.63 GHZ 1.97-2.02 GHZ 2-2.
Installation 1-13 1.5.6 COFDM Demodulator & UHF Downconverter 20.48 MHz 36.16 MHz ADC SAW(s) CX22702 Delayed AGC MPEG TS SCO PLL SDO SDI SCI Figure 10: UHF Downconverter Block Diagram This Module receives a UHF COFDM signal and demodulates them using the DVB-T specifications, and outputs an MPEG2 Transport stream (TTL compatible) for use to decode the Video stream out of that.
Installation 2-14 2 Status Monitor Program 2.1 Description The Expedio Status Monitor Program is a application that allows you to monitor the status of the Expedio unit from any Windows-based PC. 2.2 Software Installation 1. Power OFF the Expedio unit and the PC. 2. Connect the serial cable (RS-232) from the PC to the Expedio unit. 3. Turn the Expedio power ON, and then turn the PC power ON. 4. Run the Expedio Self-Extracting Executable from the Expedio CD.
Installation 2-15 2.3 Using the Status Monitor Program 2.3.1 Start/Stop Status Check Status Checking can be started in either of two methods: • Automatically: Select Check Status on Startup in the Communication Settings. With this selection, every time program is launched, it first reads the current settings from the Expedio unit, then starts status checking. • Manually, by Upon launching the Status Monitor Program, the main screen appears, as pictured below.
Installation 2-16 time required to make a connection and retrieve data depends upon factors such as the speed of the connection and the quantity of data. Once the connection is made, Expedio continues to send data until you click Stop Status Check. The Status area of the screen displays information that received from the Expedio unit. During monitoring, the Error Statistics continue to update anytime a change occurs on the Expedio unit itself.
Installation 2-17 Decoder Indicates the operating mode of the unit: GREEN = decoder RED = encoder NO COLOR (background) = Unknown PVR Indicates the PVR status: GREEN = Valid RED = Invalid NO COLOR (background) = Unknown, only occurs before status is obtained or during reset. CPU Version The version of firmware. FPGA Version The version number of the unit’s operating system. Updates to the CPU Version or the FPGA Version can only be performed under the guidance of Moseley Technical Support.
Installation 2-18 2.4 Communications Settings To begin communicating with the Expedio unit, the Communications Settings must be properly configured. • In the Comm Port field, select the Comm Port to which the Serial Cable to the Expedio unit is connected. • In the Baud Rate field, select the Baud Rate as configured on the Expedio unit. For more information about configuring the baud rate, see the section of this manual regarding hardware setup.
Installation 2-19 The progress bar appears, indicating that the change is in process. 2.5.2 Default MPEG/COFDM Configuration Settings The following table describes the factory-installed configurations.
Installation 3-20 3 Installation 3.1 Unpacking The following is a list of all included items. Description Quantity Digital Radio (3RU chassis) 1 Rack Ears (with hardware) 2 Power Cord (IEC 3 conductor for AC, 2-wire for DC) 2 Manual (or Soft copy on a CD) 1 Test Data Sheet (customer documentation) 1 Be sure to retain the original boxes and packing material in case of return shipping. Inspect all items for damage and/or loose parts.
3-21 Installation 3.2 Notices 3.2.1 CAUTION DO NOT OPERATE UNITS WITHOUT AN ANTENNA, ATTENUATOR, OR LOAD CONNECTED TO THE ANTENNA PORT. DAMAGE MAY OCCUR TO THE TRANSMITTER DUE TO EXCESSIVE REFLECTED RF ENERGY. ALWAYS ATTENUATE THE SIGNAL INTO THE RECEIVER ANTENNA PORT TO LESS THAN 3000 MICROVOLTS. THIS WILL PREVENT OVERLOAD AND POSSIBLE DAMAGE TO THE RECEIVER MODULE 3.2.2 WARNING HIGH VOLTAGE IS PRESENT INSIDE THE POWER SUPPLY MODULE WHEN THE UNIT IS PLUGGED IN.
Installation 3-22 3.3 Rack Mount The product is normally rack-mounted in a standard 19” cabinet. Leave space clear above (or below) the unit for proper air ventilation of the card cage. The rack ears are typically mounted as shown in Figure 11. Other mounting methods are possible by changing the orientation of the rack ears. Figure 11: Expedio Typical Rack Mount Bracket Installation 3.
Installation 3-23 Video Monitor AC Supply or DC as requested Video Level Control Video O/P From Rx Antenna RF Connector Audio Level Control Audio Left Audio Right - identify Pin Connect? Figure 12: Expedio -20 Rear Panel Receiver Connections Connect to this port if using external MPEG2 Encoder Tx Antenna RF Connector Video Monitor Complete Video I/P Audio Figure 13: Expedio -20 Rear Panel Transmitter Connections 602-13729-01 Rev B Expedio Digital Electronic News Gathering Radio
Installation 3-24 Power Supply: Inputs: Status LED: AC: Universal Input, 100-240V, 50/60 Hz; IEC 3 conductor DC: 24v/48v (Isolated Input); 2 pin socket (custom) +12V: Green LED indicates +12 volt supply OK +5V: Green LED indicates +5 volt supply OK NMS Card I/O Port: RS232 PC access; 9 pin D-sub (female) Reset Switch: Activates hard system reset Status LED: Green LED Indicates CPU OK Converter Module RF Connectors: Status LED: TO PA: SMA (female), Upconverter output to be applied to lin
Installation 3-25 RF I/O Panel RF Connectors: ANTENNA: Type N (female), RF cabling from internal PA module. PA IN: SMA (female), RF cabling to internal PA module. RX OUT: SMA (female), RF cabling from internal duplexer. SEMI-RIGID CABLE Ensure that the cables are secure and tightly attached. Check for any damage (kinks or breaks in the copper sheath). 3.5 Power Requirements 3.5.
Installation 3-26 3.5.3 DC Input Option An optional DC input power supply is available for the EXPEDIO; using high reliability, DC-DC converter(s) capable of operation within the following input ranges (dependent upon nominal input rating): Nominal DC Input Operating Input Range 24 Volt: 20 – 28 VDC 48 Volt: 32 – 64 VDC The DC input is isolated from chassis ground and can be operated in a positive or negative ground configuration.
3-27 Installation 3.7 Site Installation The installation of the EXPEDIO involves several considerations. A proper installation is usually preceded by a pre-installation site survey of the facilities. The purpose of this survey is to familiarize the customer with the basic requirements needed for the installation to go smoothly. The following are some considerations to be addressed.
Installation 3-28 3.8 Antenna/Feed System 3.8.1 Antenna Installation For compliance with FCC RF Exposure requirements the following has to be adhered to: 1. All antenna installation and servicing is to be performed by qualified technical personnel only. When servicing the antenna, or working at distances closer than those noted below, ensure the transmitter has be disabled. 2.
4 Front Panel Operation 4.1 Introduction This section describes the front panel operation of the EXPEDIO digital radio/modem. This includes: • LCD display (including all screen menus) • Cursor and screen control buttons • LED status indicators 4.2 Front Panel Operation A picture of the EXPEDIO front panel is depicted in Figure 14 below. Figure 14: EXPEDIO Front Panel 4.2.
Appendix 4-2 Backlight: An automatic backlight is built-in to the LCD for better clarity under low-light conditions. This backlight is enabled on power-up and will automatically turn off if there is no button activity by the user. The backlight will automatically turn on as soon as any button is pressed. Contrast Adjustment: Internal adjustment on board (in back of front panel button PCB). 4.2.
Appendix 4-3 4.2.3 LED Status Indicators Table 3-1. LED Status Indicator Functions LED Name Function RX Receiver Green indicates that the receiver is enabled, the synthesizer is phase-locked, and a signal is being received. RXD Receive Data Green indicates that valid data is being received. BER Bit Error Rate Flashes red for each data error detected. FLT Fault General fault light (red). Consult the STATUS menus for out of tolerance conditions.
Appendix 4-4 4.3 Main Menu MAIN MENU METER QAM RADIO SYSTEM ALARMS/FAULTS Scroll NXE1 The main menu appears on system boot-up and is the starting point for all screen navigation. Unlike most other screens in the software, the main menu scrolls up or down, one line item at a time. 4.3.1 Launch Screens The LAUNCH screen allows the user to quickly get to a particular screen within a functional grouping in the unit. The logic is slightly different than other screens.
Appendix 4-5 NXE1 MAIN MENU ENT Scroll METER QAM RADIO SYSTEM ALARMS/FAULTS Cycle through STATUS, CONTROL, CONFIGURE choices: QAM Radio Launch QAM Radio Launch STATUS MODEM QAM Radio Launch CONTROL MODEM CONFIGURE MODEM Move cursor to next line Cycle through MODEM, TX, RX choices: QAM Radio Launch STATUS MODEM QAM Radio Launch QAM Radio Launch STATUS TX STATUS RX ENT TX STATUS chosen, press ENTER to view. QAM Radio TX Status FreqA 948.0000 MHz Page down/up with down or up arrow.
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