Instruction manual

ManualsBrandsWegener ManualsComputer equipment4422

TECHNOLOGY PARK / JOHNS CREEK

11350 TECHNOLOGY CIRCLE

DULUTH, GEORGIA 30097-1502

(770) 814-4000 FAX (770) 623-0698

Data, drawings, and other material contained herein

are proprietary to Wegener Communications, Inc., and

may not be reproduced or duplicated in any form

without the prior permission of Wegener

Communications, Inc.

When ordering parts from Wegener Communications,

Inc., be sure to include the equipment model number,

equipment serial number, and a description of the part.

In all correspondence with Wegener Communications,

Inc., regarding this publication, please refer to

UTY4422-001G.

Note: Features of the product described herein are

covered by U.S. Patent # 4,985,895.

First Edition: April 1999

Revised: August 2002

Instruction Manual

UNITY4422™

MPEG VIDEO

INTEGRATED

RECEIVER DECODER

Summary of content (74 pages)

PAGE 1
Instruction Manual UNITY4422™ MPEG VIDEO INTEGRATED RECEIVER DECODER Data, drawings, and other material contained herein are proprietary to Wegener Communications, Inc., and may not be reproduced or duplicated in any form without the prior permission of Wegener Communications, Inc. When ordering parts from Wegener Communications, Inc., be sure to include the equipment model number, equipment serial number, and a description of the part. In all correspondence with Wegener Communications, Inc.
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Page 3 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION As this unit is intended to interface with other electrical/electronic systems, proper engineering practices must be adhered to during installation and check-out.
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Page 4 This Page Intentionally Left Blank UTY4422-001 Page 4 of 74
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Page 5 Table of Contents SECTION 1 - GENERAL INFORMATION Paragraph 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Title Page General ..................................................................................................... Introduction .............................................................................................. Unpacking and Inspection ........................................................................ Installation Instructions ..................................................
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Page 6 Table of Contents (continued) Paragraph 2.4 2.5 2.6 Title Page Local Controls and Indicators .................................................................. 2.4.1 Front Panel ................................................................................... 2.4.1.1 Front Panel Display ....................................................... 2.4.1.2 Front Panel Keypad ....................................................... 2.4.1.3 Indicator LED’s .............................................
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Page 7 3.6.3 3.6.4 Modem .......................................................................................... PAL / NTSC Selection ................................................................. 33 33 Table of Contents (continued) Paragraph 3.7 3.8 3.9 Title Page 3.6.5 Display / Push Buttons ................................................................. Serial Port - Command Syntax ................................................................. Receiver Functions .......................
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Page 8 B1.4 B1.5 B1.6 Status Reports ........................................................................................... Version ..................................................................................................... Navigation Help ....................................................................................... Table of Contents (continued) APPDX Title 54 62 64 Page C Glossary of Terms ..................................................................................
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Page 9 SECTION 1 GENERAL INFORMATION 1.1 GENERAL The purpose of this manual is to describe the proper installation and operation of the Wegener Communications UNITY4422 MPEG Video Integrated Receiver Decoder. 1.2 INTRODUCTION The UNITY 4422 IRD is an integrated receiver/decoder designed to receive SCPC or MCPC DVB-compliant digital video signals transmitted by satellite. These include the new 4:2:0 and 4:2:2 chroma formats, as well as the traditional 4:3 and new 16:9 aspect ratios.
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Page 10 1.4.2 Reduced Air Flow Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised. 1.4.3 Mechanical Loading Mounting of equipment in a rack should be such that a hazardous condition is not achieved due to uneven loading. 1.4.
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Page 11 1.7 PHYSICAL SPECIFICATIONS The operating temperature of the IRD is +10°C to +40°C in still air with unblocked side vents. (The unit is fan-cooled.) Table 1. Physical Specifications Parameter Description Size 19”W x 1.75”H x 13.75”D Weight 10.5 Pounds Operating Temperature +10°C to +40°C Power Requirements 115VAC, 60Hz, 0.8A Typ., or 230VAC, 50Hz, 0.5A Typ. 1.
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Page 12 1.9 MANUALS If you have any suggestions concerning this, or any Wegener Manual, please E-mail them to manuals@wegener.com. If you would rather mail them, please do so to the address shown below. Our preference is that you copy the page in question, mark it up, and fax or mail us the copy. We do appreciate constructive criticism. The Fax Number is 770-497-0411. Attn: Manuals Wegener Communications, Inc.
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Page 13 SECTION 2 SYSTEM CONFIGURATION 2.1 UNIT OVERVIEW The UNITY 4422 IRD features several separate hardware components: The DC switching power supply, the main motherboard, an L-band DVB receiver, front-panel keypad controller card, a front-panel LCD assembly, and the optional L-band RF switch. The DC switching power supply provides all internal regulated DC power.
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UTY4422-001 Page 14 of 74 --> --> --> --> --> --> --> --> --> --> --> 20MHz BUFFER RATE FIFO PLL SRAM 32K X 8 32K X 8 32K X 8 MPEG2 TRANSPORT 27 Mhz VCXO Data MPEG2 A 16 D DEMUX I2C BUS DB9 I/O PORT TO FRONT PANEL DISPLAY & PUSHBUTTONS RJ11 I2C BUS FRAM 2048 X 8 SRAM 128K X 8 128K X 8 (32K X 8) (32K X 8) L_Addr Addr/Data Control CLK_EN CS I2C BUS AUDIO 2 IRQ / CTL 128K X 8 128K X 8 FLASH 2 BUS I2C BUS I2C J1 SDI VIDEO OUT RESET DB9 SERIAL PORT ALARM RELAY LNB POWER
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Page 15 The control system on the main board is run by the main host processor. This processor interfaces with the COMPEL™ network as well as local users and then controls and monitors the unit’s operations. To do its job, this processor accesses the control data streams recovered from the main transport demultiplexer. One of these may be a conditional access data stream (if used).
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Page 16 Table 3. QPSK Demodulator Requirements Inner Code Rate Symbol Rate Transport Rate Threshold Eb/No 1/2 2.71-30 Msps 2.5-27.647 Mbps 4.0 2/3 2.04-30 Msps 2.5-36.863 Mbps 5.0 3/4 1.81-30 Msps 2.5-41.471 Mbps 5.5 5/6 1.63-30 Msps 2.5-46.078 Mbps 6.0 7/8 1.55-30 Msps 2.5-48.382 Mbps 6.4 2.3.3 Transport DEMUX The transport demux is used to extract the desired video and audio streams from the multiplexed data stream. 2.3.
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Page 17 2.3.7 Video Specifications NTSC video performance is specified below at a 9 Mbps video PES rate, 720Hx480V resolution. Table 5. Video Specifications Parameter Production Specification Signal Type Output Level Output Impedance Multiburst NTSC NTSC 1.0 Vp-p, ± 2% 75 Ohms From 0.5 to 4.2 MHz: ≤+0/−1.0 dB ≤ 4 IRE ≤ 1.5° ≤ ± 4 IRE ≤ ± 26 nS ≤ 1 IRE p-p ≤ 3 IRE p-p PAL 1.0 Vp-p, ± 2% 75 Ohms From 0.5 to 4.8 MHz: ≤+0/−1.2 dB ≤ 4 IRE ≤ 1.
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Page 18 2.3.9 Serial ASYNC Data, Monitor and Control of IRD Two serial ports (SERIAL 1 and 2) for data to/from the IRD have the following characteristics: Table 7. Serial ASYNC Port Requirements Parameter Specification Signal Type Serial Asynchronous Character Data Levels RS-232 Mode Always 8 data-bits, one start, one stop-bit, half-duplex. Pin-outs DCE to AT-compatible serial port, 3-wire subset (Rxd, Txd, and Ground) without handshake lines 2.3.
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Page 19 No user-accessible controls or indicators are located on the module. 2.3.13.2 Electrical Characteristics The characteristics described in Table 8 are measured at a -25 dBm input level. Table 8. RF Switch Characteristics 2.4 Parameter Specification Input Isolation, Port to Port (all ports terminated) > 35 dB, 950-1450 MHz ≥ 24 dB, >1450-2150 MHz Input VSWR (selected port, 75-ohm system) ≤ 2.5:1, 950-1450 MHz ≤ 3.5:1, >1450-2150 MHz Insertion Loss ≤ 1.
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Page 20 2.4.1.3 Indicator LED’s Table 9. Front Panel LED’s* Label Mnemonic Meaning (See Section 3.
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Page 21 2.5 EXTERNAL INPUTS AND OUTPUTS Table 11.
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Page 22 Table 12. Analog Audio Channel 1 and Channel 2 Connector Pinouts Channel 1, J5, DB9 Channel 2, J6, DB9 Pin # 1 2 3 4 5 6 7 8 9 Pin # 1 2 3 4 5 6 7 8 9 Signal AUDIO1R+ GNDD AUDIO1RAUDIO1L+ GNDD AUDIO1LNC NC NC Signal AUDIO2R+ GNDD AUDIO2RAUDIO2L+ GNDD AUDIO2LNC NC NC 2.5.1 Balanced Audio Outputs There are two audio channel outputs on the rear panel. Each Channel (Ch1 & Ch2) has a right and left pair. Each of these pairs is a balanced, low-impedance audio output.
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Page 23 will cause the rear panel alarm outputs to short together (alarm relay closed). Ratings for the alarm relay and network-controlled closures are 100 mA at 30 VDC. The two contact closures are controlled via the COMPEL command stream from the uplink. See the COMPEL™ Manual for the commands and structure for the relay closures. 2.5.4 AES/EBU Connector Pinout The AES/EBU digital audio is output on a DB-9 connector on the rear of the unit. The pinouts are shown below. Table 13.
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Page 24 Figure 2. Ferrite Bead Installation MAX 250 mA ALARM G L + - N D N B CLOSURE 1 2 + - + - * * * CAUTION * * * To meet FCC requirements, the alarm and contact closures must have a ferrite bead installed on each pair of wires leading from them. See Section 2.5.2 and Figure 2-2 for instructions on their installation. There are 3 ferrite beads packed with the unit. One of these is for the alarm relay output, and two are for the contact closures.
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MODULE 2 The Digital Broadcasting Platform MODULE 1 RF IN MPEG RF LEVEL COMPEL CARRIER WARNING CUE ALARM AUTH Page 25 of 74 CH 2 BALANCED AUDIO RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CH 1 AVIS: G L N N D B 1 2 CLOSURE + - + CONTACT RATING 0.1A @ 30VDC + - ALARM MAX 250mA Figure 4. UTY4422 Rear Panel MPEG 4:2:2 & 4:2:0 UNITY4422 MPEG-2 IRD Figure 3.
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Page 26 2.6 EXPANSION CARD CONFIGURATION The purpose of this section is to detail the jumper settings and labeling instructions for the Unity Expansion Cards. 2.6.1 Balanced Audio Expansion Card 2.6.1.1 Audio Card Jumper Configuration Jumper settings – Dotted and Non-dotted. The headers used here have 3 pins, so a jumper connecting 2 of these pins can connect pins 1 & 2 or pins 2 & 3. The “Normal” position of this jumper is marked by a dot on the silkscreen near either pin 1 or pin 3.
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Page 27 When a second balanced audio expansion card is installed, channels 5 and 6 are used. The second card is installed in the vacant module slot and connected to the first card and the motherboard by a 3-connector cable, rather than the 2-connector cable used with a single card. The second card enables Channels 5 & 6 when the jumpers are set to the “Non-dotted” position. Labeling this card is done like the first card, except it will be labeled [CH 6 CH5]. 2.6.
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Page 29 SECTION 3 OPERATION 3.1 MODES OF OPERATION 3.1.1 Power Up At power up, the unit does a quick checksum test on the EEPROM. If the test passes, the unit then initializes various devices and configures itself according to the EEPROM settings. It then waits for the receiver board to complete its boot-up. When the receiver board boots up, the IRD sends a tune request to the receiver board and the Welcome Banner to the serial port.
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Page 30 3.2 LED & ALARM / WARNING CONDITIONS The following definitions apply throughout this section: Table 14. LED and Alarm Conditions Blink LED is OFF for 1 second, and then blinks on count times (ON for 250 mS and OFF for 250 mS). This overall pattern is continued. Flash ON for 100mS, OFF for 100mS, … Flutter ON for 50 mS, OFF for 50 mS, … AMBER RED and GREEN turned ON at the same time. The UNITY4422 has eight front panel LED's, each of which is described below. 3.2.
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Page 31 3.2.7 Alarm (Red) FLASH if any of following: (see Table 14, Page 30) 1. EEPROM Boot Failure. 2. Receiver board diagnostics Boot failure. 3. Receiver board communications Boot failure. 4. Secure micro / host ID mismatch Boot failure. ON if any of the following: 1. Receiver board run-time failure. 2. Fade mode > 10 seconds. 3. Installation mode > 10 seconds. 4. Carrier table search mode. 5. Header search mode. 6. Satellite search mode. 7. Alarming Eb/No. 8.
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Page 32 8. No video data < 5 seconds and have MPEG sync. 9. COMPEL required and no COMPEL within last 2 minutes. 10. Selected audio not available. Otherwise, OFF. * * * CAUTION * * * E-mail messages should be read as soon as possible after receipt, because each message will be over-written by the next one. 3.3 RELAYS This IRD supports 1 alarm relay and 2 solid state user relays. The user relays are controlled via COMPEL™ and the modem/terminal interface.
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Page 33 Table 15. Audio Handling Stereo Original encoder L and R routed to corresponding L and R outputs on IRD Reverse Stereo Original encoder L routes to IRD R output, while original R routes to the L output 1 on both Original encoder L is routed to both L and R outputs on IRD 2 on both Original encoder R is routed to both L and R outputs on IRD 3.6 SOURCES OF CONTROL The IRD can be controlled via COMPEL™, terminal, modem, and Display / push buttons.
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Page 34 3.6.5 Display / Push Buttons This interface supports a variety of controls and status displays, including the following: 1. Status. 2. Selecting and configuring the Serial Port devices. 3. Setting the LNB LO's. 4. Front panel email. See the Display / Push Button Menus, Appendix A, for complete details. 3.7 SERIAL PORT - COMMAND SYNTAX The UNITY4422 contains two serial ports. These are labeled Serial Port 1 and Serial Port 2.
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Page 35 Note 1. For Printer: ‘B’ may be 1200, 2400, 4800, 9600, or 19.2k baud; ‘P’ may be ‘O’ for Odd, ‘E’ for Even, or ‘N’ for No parity. Note 2. For Aux Data: ‘B’ may be 1200, 2400, 4800, 9600, 19.2k, or 38.4k baud. ‘P’ may be ‘O’ for Odd, ‘E’ for Even, or ‘N’ for No parity. Note 3. For Modem: ‘B’ may be 9600, or 19.2k baud; parity is always ‘N’ for No parity. * Note: Baud rate and parity are configurable for the Printer, but the serial ports do not support parity for modem applications.
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Page 36 3.8.1 Perms, Temps, Searching & Settings The term settings is used throughout this document and includes the following parameters: Table 19. Settings Parameters {RF_In} Value from 1 - 4, specifying the RF input (if RF Switch is installed) Carrier The downlink frequency specified in MHz with up to two decimal places. This value’s absolute difference with the LNB LO frequency must be ≥ 950 MHz and ≤ 2150 MHz. Data_rate The data_rate is the MPEG2 transport rate in Mbps.
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Page 37 The IRD is acting on one of three groups of settings at any given time, each of which is described in the following table: Table 20. Group Settings Settings Group Description Temp These settings are entered via COMPEL or the TEMP / TEMPCH terminal commands. The unit is said to be inserting when it is configured to the temp settings. The maximum length of an insert is approximately 18 hours (65535 seconds).
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Page 38 3.8.3 Frequency Tagging Under normal operation, the IRD can only acquire carriers that contain frequency tags. These tags are inserted in the COMPEL control stream at the uplink and are used for identifying the carrier’s frequency. Tagging was mandated because, without tags the IRDs could have locked on some other nearby (adjacent) carrier while looking for the intended carrier. The tuning can be off by a small amount due to minor offsets in the LNB and within the receiver itself.
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Page 39 3.9.2 Push Button Functions Table 23. Push Button Functions LCD MODE HOME MENU PARAMETER EDIT PUSH BUTTON FUNCTION SELECT N/A ENTER Shows unit serial number for approximately 2 seconds ∧ (UP) N/A ∨ (DOWN) N/A > (RIGHT) Enters MENU mode. < (LEFT) Enters MENU mode. SELECT Enters PARAMETER mode ENTER N/A ∧ (UP) N/A ∨ (DOWN) N/A > (RIGHT) Scrolls forward through MENU selections. < (LEFT) Scrolls backward through MENU selections.
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Page 40 Table 24. LC Display Menus Note: Screens marked by ‘*’ are not shown if local control is disabled (either programmed into non-volatile memory at factory or set by COMPEL command). Exception: “Audio Settings” screen is shown but only “Attenuation” may be changed by local user.
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Page 41 Table 24. LC Display Menus (Continued) MAIN LEVEL SECOND LEVEL THIRD LEVEL Status Reports (Continued) Carrier Status (Not Tracking) Acq.
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Page 42 Table 24. LC Display Menus (Continued) MAIN LEVEL SECOND LEVEL Version Info Application Boot Code Audio Demux (DSP) Xilinx PLDs Lattice PLD Secure Micro Video Decoder Audio Decoder Receiver Card Conditional Access ¶ or • to Scroll to cancel Changes Navigation Help THIRD LEVEL NOTE: When moving through the front panel menus, pressing and to view the first 20 characters of the message on the display. To view more of the message press <•>. You may scroll in either direction by pressing <•> or <¶>. Pressing and releasing either of these keys will scroll the message 1 character. 3. When you pass the end of the E-mail message, the following will be displayed: < - - E N D O F E MA I L - - > 3.
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Page 44 7. If you press at the above second or third screen, the following screen (second level) appears: < E E MA I L ME SS A G E Q U I C K B R O WN F O X > J U ‘<’ and ‘>’ are shown only when scrolling is necessary to view email message. To exit email screen you must scroll to end of message.
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Page 51 S A V E : C A N C E L : < E N T E R > < S E L E C T > saves the entry (new setting) and returns to 2nd level screens under “HARDWARE SETUP>. allows for display of all valid Settings Table entries, including “Last Acquired” carrier and “Last Requested” carrier settings.
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Page 59 time_string (timer.delay_remaining), {if non-zero} S / N : 1 2 3 4 5 6 U N L O C K E D C O MP E L : R E Q U I R E D serial_number COMPEL.unlocked COMPEL.required L O C A L C T R L : E N A B L E D N E T WR K MO D E : local_control COMPEL.network_mode L A S T H D R : 0 0 0 : 0 0 : 0 0 L A S T A D R : 0 0 0 : 0 0 : 0 0 timer.last_header timer.last_addr_header H I S T O R Y : 00 0 : 0 0 : 0 0 T O T L P R O C E S S D : x x x x x x timer.powered_up COMPEL_stats.
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Page 60 R E T U R N P r e s s < S E L E C T > B1.4.6 Parameter Status P A R A ME T E R S T A T U S P r e s s < S E L E C T > If the RF switch is not installed: L N B L O : 0 0 0 0 0 . 0 0 freq_string (lnb_lo_freq[0]) Else: L N B L N B L O : 0 0 0 0 0 . 0 0 L O : 0 0 0 0 0 . 0 0 # # L N B L N B L O : 0 0 0 0 0 . 0 0 L O : 0 0 0 0 0 . 0 0 # # Where ‘#’ equals RF Switch Position S N R S N R A L R M MA R G L E V E L : 0 0 . 0 O F F S E T : 0 0 . 0 SNR ALARM LEVEL snr.
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Page 61 A U D D E MU X : I NS T A L L E D A U D I O P O R T S : ( x x x x x ) value of options.program_demux options.audio3_4, options.audio5_6 This output is dependent on the Balanced Audio Card Jumper Settings. E N C R Y P T I O N : NO T I N S T L R F S WI T C H : I NS T A L L E D options.encryption options.
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Page 62 P R I N T E R : 9 6 0 0 N 8 1 RS232 settings: Baud: 9600 - 19200 Parity: N, E, 0 Data Bits set to 8 and stop bit set at 1. R E T U R N P r e s s < S E L E C T > B1.4.8 Relay Status R E L A Y S T A T U S 1 : O P E N 2 : C L O S E D Current state of corresponding relay. B1.5 VERSION V E R S I O N I N F O P r e s s < S E L E C T > Pessing