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ACO-4500 User Guide (v3.0)

Front Panel Menu System • 35

Front Panel Menu System

The ACO-4500 provides the user with a menu interface on the chassis to control the functions and options of the 
unit. 

Navigating the Panel Menu System

The menus can always be viewed on the front panel LCD display, and optionally “in-vision” in an 
on-screen-display (OSD) viewable on any pattern output. By default, the OSD is set On for each pattern output, but 
can be independently disabled if desired.

The menus are accessed from the initial start-up (Time) screen by pressing the rotary control. To return to the Time 
screen, press the blue escape/back button. If you repeatedly press the blue button, the LCD display will cycle 
between the display of time and the display of logo.

The Logo menu reports the Device Name, IP Address (when connected), and the Software version number.

Figure 7.1  Example of the Logo Screen

This menu also gives you access to the key menus that are used to control and configure the ACO-4500: Signal 
Strength, the Channel Setup, and the System Setup menus.

Menu Trees

Figure 7.2

 is a basic menu tree structure of the ACO-4500.

Figure 7.2  ACO-4500 — Menu Tree (Diagrammatic)

Audio Type

Audio

=

###.###.###.###

ACO-4500

v##

Signal Strength Screen

Channel Setup Menu

Logo Screen

Temp Report

Event Report

System Report

DashBoard

Calibration

Configuration

Network

T

R

System Setup Menu

Содержание 4500DR-204-03

Страница 1: ...ACO 4500 User Guide ...

Страница 2: ...people that make things happen At Ross our employees are a special group Our employees truly care about doing a great job and delivering a high quality customer experience every day This code of ethics hangs on the wall of all Ross Video locations to guide our behavior 1 We will always act in our customers best interest 2 We will do our best to understand our customers requirements 3 We will not s...

Страница 3: ...ational use only It is subject to change without notice and should not be construed as commitment by Ross Video Limited Ross Video Limited assumes no responsibility or liability for errors or inaccuracies that may appear in this manual Safety Notices Refer to the Important Regulatory and Safety Notices document that accompanied your product EMC Notices United States of America FCC Part 15 This equ...

Страница 4: ...he extraction and use of natural resources for its production It may contain hazardous substances that could impact health and the environment To avoid the potential release of those substances into the environment and to diminish the need for the extraction of natural resources Ross Video encourages you to use the appropriate take back systems These systems will reuse or recycle most of the mater...

Страница 5: ... 1K0 Ogdensburg New York Canada USA 13669 0880 General Business Office 1 613 652 4886 Fax 1 613 652 4425 Technical Support 1 613 652 4886 After Hours Emergency 1 613 349 0006 E mail Technical Support techsupport rossvideo com E mail General Information solutions rossvideo com Website http www rossvideo com ...

Страница 6: ......

Страница 7: ...O 4500 into a Rack Unit 18 Installing the Rear Support Brackets 18 Connecting an SRG 4500 to an ACO 4500 19 Connecting the Primary SRG 4500 to the ACO 4500 19 Connecting the Backup SRG 4500 to the ACO 4500 20 Installing the Breakout PCB 20 Before You Begin 21 Installing the Breakout PCB on the Rack Tray 21 Installing the Breakout PCB into the Rack Frame 22 Cabling the Breakout PCB to the ACO 4500 ...

Страница 8: ...em Setup Menus 39 Temperature Reports 40 Event Report 40 System Report 42 Configuration Menu 43 Network Menu 44 DashBoard Menu 45 Calibration Menu 47 Changeover Channel 47 Do Calibration 47 P NSig B NSig 48 Troubleshooting 49 Troubleshooting Checklists 49 Replacing a Power Supply 49 Moving the Handle on the PS 4500 50 Removing the Front Faceplate 50 Removing the Failed PS 4500 51 Installing the Ne...

Страница 9: ...32 Connector 60 Breakout Cable 60 Pin Views of Chassis Connectors 61 Calibration Procedure 63 Disclaimer 63 Calibrating the ACO 4500 63 Service Information 65 User Maintenance 65 General Care 65 Exterior Cleaning 65 Preventive Maintenance 65 Servicing 65 Service Safety Overview 66 Important Information Regarding the use of Switch Cleaners 66 Warranty and Repair Policy 66 In Case of Problems 67 Glo...

Страница 10: ...iv Contents ACO 4500 User Guide v3 0 ...

Страница 11: ...provides an overview of how to calibrate your ACO 4500 Service Information provides information on the warranty and repair policy for your ACO 4500 Glossary provides a list of terms used throughout this guide Related Publications It is recommended to consult the following Ross documentation before installing and configuring your ACO 4500 DashBoard User Manual Ross Part Number 8351DR 004 ACO 4500 Q...

Страница 12: ...cal Support At Ross Video we take pride in the quality of our products but if problems occur help is as close as the nearest telephone Our 24 hour Hot Line service ensures you have access to technical expertise around the clock After sales service and technical support is provided directly by Ross Video personnel During business hours Eastern Time technical support personnel are available by telep...

Страница 13: ...econdary connector channel relays switch in unison upon fault detection in any active BNC channel front panel command or remote command The ACO 4500 uses signal amplitude as the basis for error checking You can configure each BNC channel to check for a different type of input There is a selection of predefined checking levels relating to the various signals that are supported No Measurement Color ...

Страница 14: ...d Tight integration with SRG 4500 Functional Block Diagram This section provides the functional block diagram that outlines the workflow of the ACO 4500 Figure 2 1 ACO 4500 Functional Diagram Including unmonitored multi way channels BACKUP PEAK DETECT PRIMARY PEAK DETECT PRIMARY LEVEL CHECK BACKUP LEVEL CHECK Output Primary Input Secondary Input RELAY OTHER CHANNELS OTHER CHANNELS OTHER CHANNELS L...

Страница 15: ...ush control has two functions the rotary function is used to navigate up or down items in a menu or to cycle through a range of values relating to a menu item the push function is used to confirm a menu item selection for editing to exit menu item editing or take you forward to the next menu item Selecting or editing menu items requires you to turn the Rotary Control in order to select or change t...

Страница 16: ...connector input for the primary SRG 4500 3 BACKUP PRIMARY BNCs Each triplet of BNCs relates to one changeover channel comprising of a Primary input a Backup input and an output BACKUP An input from the Backup SRG 4500 is connected here The signal applied must be the same format as the Primary The switched output from either the Primary input or the Backup input appears on the center BNC of each tr...

Страница 17: ... equipment bay it is imperative that you ensure there is sufficient space all around the unit to allow the airflow to vent away any excess heat generated by the unit For More Information on environmental operating specifications refer to the chapter Technical Specifications on page 55 Unpacking Unpack each ACO 4500 you received from the shipping container and ensure that all items are included Ini...

Страница 18: ... product is shipped Rack Mount Installation You can install the ACO 4500 into an equipment rack It is recommended to use the rack mount kit and to loom the cables so that they do not introduce extra weight or twisting force on the front panel rack mountings or rear panel connectors If installed in a mobile application the rack mount kit is essential This section describes how to install the ACO 45...

Страница 19: ...talled in the section Connecting the Primary SRG 4500 to the ACO 4500 The Primary SRG 4500 connects directly to the ACO 4500 via its BALANCED connector and the Interface Cable 4400CR 100 01 This cable has red and violet wires and two 30 pin Connectors To connect the Primary SRG 4500 to the ACO 4500 1 Connect one end of the Interface Cable 4400CR 100 01 to the BALANCED connector on the primary SRG ...

Страница 20: ...5 6 PRIMARY PRIMARY PRIMARY PRIMARY Primary SRG 4500 GbE PTP 100 BaseT GPS 1Hz 10MHz IN 10MHz WK TTL1 WK TTL2 6Hz TTL3 DARS AES 1 AES 2 BALANCED AUDIO AES LTC COMPOSITE BLACK 1 REF LOOP TRI BLACK 2 TRI BLACK 3 TRI BLACK 4 SDI 2 BLACK SDI 1 SDI 1 BLACK SDI 2 SDI 4 BLACK SDI 3 SDI 3 BLACK SDI 4 Backup SRG 4500 GbE PTP 100 BaseT GPS 1Hz 10MHz IN 10MHz WK TTL1 WK TTL2 6Hz TTL3 DARS AES 1 AES 2 BALANCE...

Страница 21: ...enables you to cable a Primary SRG 4500 and a Backup SRG 4500 to the ACO 4500 and provide access to the AES DARS and Analog Audio connections on balanced 3 pin connectors You will need a Phillips screwdriver to affix the Breakout PCB to the rack tray using the four M3 10mm screws that were included in the SRG 4500 Install Kit For More Information on installing the rear support brackets into the ra...

Страница 22: ... Position the Breakout PCB and Tray behind the ACO 4500 in the rack frame Figure 4 5 while ensuring to a position the Breakout PCB so that its white 30 pin connector is aligned with the ACO 4500 rear panel 30 pin connectors b leave enough space between the ACO 4500 rear panel and the Breakout PCB to properly cable the connectors Figure 4 5 Installing the Breakout PCB and Tray to the Rear Brackets ...

Страница 23: ...nectors that provide access to the AES DARS and Analog Audio connections This section outlines the pinout designations and how to wire the 3 pin connectors Figure 4 7 illustrates the pinout assignment of the Breakout PCB 3 pin connectors Each connector has locations for the positive negative and grounded wires This information is also included in the PCB silk screen Figure 4 7 Breakout PCB Top Vie...

Страница 24: ...e on separate independent and secure power grids However you still gain the security of power supply failure redundancy if you use the same power grid for both connections AC Power Requirement Check that your location provides the proper electrical power requirements as listed in Table 4 2 Connecting the Power Cable Connect the power cable to the instrument first and then connect it to the AC powe...

Страница 25: ...sly checked channels Because the unmonitored channels on the 30 pin Molex connectors are secondary to the BNC channels no specific details are listed in this procedure regarding their function Simply connect suitable signals to the relevant connector pins and monitor the signal changeovers happening at the same time as the BNC channels listed in the procedure below Required Equipment The following...

Страница 26: ...ilized which should occur after 20 minutes It is good practice to soak the instrument before proceeding 6 Selecting or editing menu items requires you to turn the Rotary Control in order to select or change the highlighted menu item setting then to press the Rotary Control to select or confirm that menu item setting Pressing the Rotary Control will either select the highlighted menu item for editi...

Страница 27: ...ress the Rotary Control and Back indicates that you should press the blue push button To select the number of active channels 1 Verify that you are in the Top Level menu ACO 4500 2 Select System Setup 3 Confirm 4 Select the System Setup Menu 5 Highlight Configuration 6 Confirm 7 Highlight Number of channels 8 Confirm 9 Set the number of channels For initial configuration select 1 channel 10 Confir...

Страница 28: ...ndication changes to show that the Primary input signal is now correct and the channel output automatically switches back to the Primary input signal Composite Video 4 Press Confirm to clear the fault indication 5 Select Operational Mode Manual 6 Press Back to go to the Stand By screen 7 Disconnect the Primary input signal Composite Video Note that no switching occurs but that the Primary fault in...

Страница 29: ...in non volatile memory When selecting the number of channels you must always start from number 1 and continue up to the number of signals you wish to monitor You should set any unused channels to No Measurement If you select more active channels than you have signals connected Input Missing errors will always be reported leading to inconsistent operation You can now connect your signals to the ACO...

Страница 30: ...30 Functional Check Procedures ACO 4500 User Guide v3 0 Table 5 1 ACO 4500 Channel Configuration Channel Channel Type Signal Attached 1 2 3 4 5 6 7 8 9 10 11 12 ...

Страница 31: ...that has a physical wired ethernet connection For More Information on downloading and installing the DashBoard client software refer to the DashBoard User Manual the ACO 4500 interfaces in DashBoard refer to the chapter To launch DashBoard 1 Ensure that you are running DashBoard software version 8 3 0 or higher 2 Launch DashBoard by double clicking its icon on your computer desktop Enabling a Conn...

Страница 32: ...ashBoard 1 In the Basic Tree View of DashBoard locate the ACO 4500 node 2 Expand the ACO 4500 node 3 Double click a sub node to display the ACO 4500 interface in the right pane of the DashBoard window In the example below the user selected the Slot 1 sub node 4 Select a tab to display its options in the right side of the DashBoard window In the example above the user selected the Configuration tab...

Страница 33: ...ault occurs in one of the configured channels on either the Primary or Backup input the LCD indicator will illuminate to report the fault The fault reporting is persistent i e even if the fault is only an intermittent one the fault indicator will stay illuminated If more than one fault exists only the first one is reported i e counting from the lowest numbered configured channel As faults are repa...

Страница 34: ...34 Getting Started ACO 4500 User Guide v3 0 ...

Страница 35: ...urn to the Time screen press the blue escape back button If you repeatedly press the blue button the LCD display will cycle between the display of time and the display of logo The Logo menu reports the Device Name IP Address when connected and the Software version number Figure 7 1 Example of the Logo Screen This menu also gives you access to the key menus that are used to control and configure th...

Страница 36: ...rength ACO 4500 Primary Operational Mode Menu Enter Menu Enter Menu Enter Output Manual Network Configuration System Report Event Report Temp Report Menu Enter Menu Enter Menu Enter Menu Enter Menu Enter Fixed PSU Undefined 1v2 Regulator 3v3 Regulator Sensor absent Sensor absent 45 45 Case Internal 45 45 45 45 Sensor absent Ev 00008 NewMinTemp5 03 22 18 700 13 Ev 00009 NewMinTemp5 03 22 21 255 13 ...

Страница 37: ...rrespective of any existing faults Output This menu line displays which of the inputs is currently switched to the output The options for the field are Primary Backup The user can only switch the output to Backup when the Operational Mode is set for Manual Other Menus The Signal Strength Menu Channel Setup Menu and System Setup Menu provide access to further menus or features all of which are deta...

Страница 38: ...rect signal present Similarly Color Black connected to a TriSync channel will appear significantly lower in amplitude The widths of the bars in each channel pair are different the Primary bar is wider than the Backup bar The bottom line of the menu displays the actual detected levels of the Primary and Backup input signals for the currently selected channel Channel POK X BOK X The options in the f...

Страница 39: ...nes all set to their relevant signal types Another scenario is one where more signals are required to be switched than monitored On the ACO 4500 when a fault occurs ALL channels switch regardless of how many inputs are populated or configured So for this case the user can either select the additional channel types as No Measurement or reduce the Number of Channels setting to correspond to the actu...

Страница 40: ...epending on the exact configuration and options in the ACO 4500 one or more of the sensors might not be installed In this case the description in the relevant line appears as seen in Figure 7 8 These menu lines report the power cycle counts and in service times for both of the PSUs installed in the N 1 Dual Redundant PSU ACO 4500 Because the temperature report includes not only the current tempera...

Страница 41: ...vent Code EventDefault 0 EventNewMaxTempAlarm1 27 Event Power On 1 EventNewMaxTempAlarm2 28 EventWatchdogReturn 2 EventNewMaxTempAlarm3 29 EventLVDReturn 3 EventNewMaxTempAlarm4 30 EventPowerOff 4 EventNewMaxTempAlarm5 31 EventLVDEvent 5 EventNewMaxTempAlarm6 32 EvetnSetUTCTimeFromGPS 6 EventNewMaxTempAlarm7 33 EventGPSTimeLost 7 EventNewMinTemp0 34 EventSetUTCTimeFromNTP 8 EventNewMinTemp1 35 Eve...

Страница 42: ...detailed Ethernet link status The options in the first sub field appear as Blank 10Mbps 100Mbps The options in the second sub field appear as Full Duplex Half Duplex Additionally the current Ethernet link status is reported on the bottom line of the Logo screen of the Front Panel Display EventNewMaxTemp2 20 EventNewMinTempAlarm5 47 EventNewMaxTemp3 21 EventNewMinTempAlarm6 48 EventNewMaxTemp4 22 E...

Страница 43: ...ware are uploaded via the Ethernet interface Configuration Menu Figure 7 11 provides an example of the Configuration Menu Figure 7 11 Configuration Menu Example The Configuration Menu provides access to features that determine the functionality of the ACO 4500 not otherwise covered by other menu settings These options are typically set up during the system commissioning of the ACO 4500 and thereaf...

Страница 44: ...tified Auto Recover from Fault When set to ON the ACO 4500 will automatically switch back from Backup to Primary upon return of the Primary signal When set to OFF the ACO 4500 will need to be manually switched from Backup to Primary after the fault is corrected Event Warnings This menu item allows the user to control the behavior of the LCD when an event occurs The options are Off no warning messa...

Страница 45: ...es through each sub field 2 rotating the rotary control changes the value of the currently selected sub field Gateway This menu line allows the user to enter the pre determined Gateway address of the ACO 4500 Typically this might be the IP address of a network hub to which the ACO 4500 is connected The options in the sub fields are 000 through 255 where 000 is the default no action setting To chan...

Страница 46: ...al Character DashBoard Password These menu lines only appear when the Connection URM is set to Managed This menu doublet allows the user to select and edit the Dashboard password The options in the field mm are 01 through 09 There are a maximum of 9 characters in the password mm selects which character is active and hence editable in the menu In the selected DashBoard Password line as mm is change...

Страница 47: ...ord of these settings in case they become corrupted or are inadvertently changed A convenient way to achieve this is to print out the table at the end of this section and record the stored values You can then store this list in a safe place On no account should the user attempt to alter any of these settings without proper authorization from Ross Video Limited If problems are encountered these set...

Страница 48: ...that the line of calibration values is for the Primary channel Similarly the B menu line indicates that the line of calibration values is for the Backup channel The NSig nnnn sub field displays the recorded value for the no signal present and input terminated condition The Sig nnnn sub field displays the recorded value for the level of the normal amplitude signal The Fail nnnn sub field displays t...

Страница 49: ...l Status Verify that source equipment is operating correctly and that a valid signal is being supplied 4 Output Signal Path Verify that destination equipment is operating correctly and receiving a valid signal 5 Unit Exchange Exchanging a suspect unit with a unit that is known to be working correctly is an efficient method for localizing problems to individual units Table 8 1 provides additional t...

Страница 50: ...e PS 4500 in the left slot proceed to To move the handle of the PS 4500 To move the handle of the PS 4500 1 Use a Phillips 1 screwdriver to remove the four screws that affix the PSU faceplate to the PS 4500 module Figure 8 1 Removing the PS 4500 Faceplate Screws 2 Set the screws aside 3 Remove the PSU faceplate from the PS 4500 module 4 Rotate the PSU faceplate 180 and position the PSU faceplate s...

Страница 51: ...nects to the chassis midplane via the blue connector at its rear To install a new PS 4500 1 Align the new PS 4500 with its slot in the main chassis 2 Slide the new PS 4500 into the available slot You will feel the PS 4500 engage with the midplane 3 Use a 3 16 slotted screwdriver to tighten the captive screws and affix the PS 4500 to the main chassis Re install the Front Faceplate You must re insta...

Страница 52: ...pgrade Requires the Pattern files only Software upgrade Requires the Software file only Firmware upgrade Requires the Firmware file only To prepare for the upgrade 1 Connect the ACO 4500 via an Ethernet cable to your local network 2 Connect a Windows PC to the network such that the ACO 4500 is visible 3 Verify that the Ross System Update Tool and data files are in the same folder on the PC To uplo...

Страница 53: ...be uploaded you will be asked to confirm the upload 8 Monitor the upload a The software will put the ACO 4500 into Bootload mode b The Ross System Update Tool erases the old ACO 4500 file c The Ross System Update Tool uploads the new file to the ACO 4500 Upload of a file takes approximately 1 minute d The status messages field in the Ross System Update dialog confirms that the upload was completed...

Страница 54: ...54 Troubleshooting ACO 4500 User Guide v3 0 ...

Страница 55: ...nt Characteristics on page 57 The ACO 4500 must have a warm up period of at least 20 minutes The ACO 4500 must have been calibrated and adjusted at an ambient temperature between 20 C and 30 C at an altitude of less than 2000m BNC Channels Table 9 1 Technical Specifications BNC Channels Category Performance Requirement Notes Input Connector Type 3 x 75ohm BNC per channel The non selected input is ...

Страница 56: ...tics Set time max 3 ms Release time max 2 ms Set Release min 9mS Insertion Delay 1ns Table 9 3 Technical Specifications RS 232 Category Performance Requirement Notes Connector Type Molex MicroClasp 2mm 30 pin Outputs Pin 2 GND Pin 4 RS232 TX Inputs Pin 3 RS232 RX Table 9 4 Technical Specifications Ethernet Category Performance Requirement Notes Connector Type 1 x RJ45 8P8C IEEE Standards Complianc...

Страница 57: ...de 50mm 2 00 Rear 75mm 3 00 Table 9 7 Technical Specifications Mechanical Category Performance Requirement Notes Dimensions Height 43 5mm 1 71 Width 482 5mm 19 00 Depth 405mm 15 96 Net Weight 5 85kg 12 9lb Table 9 8 Technical Specifications Environment Category Performance Requirement Temperature Operating 0 C to 40 C Non operating 20 C to 60 C Relative Humidity non condensing Operating 20 to 80 r...

Страница 58: ... 2 65m s2 0 27Grms 5Hz to 500Hz 10 minutes per axis three axes Non operating 22 3m s2 2 28Grms 5Hz to 500Hz 10 minutes per axes three axes Shock Non operating 294m s2 30G half sine 11ms duration Table 9 8 Technical Specifications Environment Category Performance Requirement ...

Страница 59: ... micro clasp connector located on the ACO 4500 rear panel Table 10 1 Balanced Pinouts Pin Signal Function 1 Ground 2 Ground 3 LTC1 4 AES1 8 DARS 2 0484MHz 4 5 LTC1 4 AES1 8 DARS 2 0484MHz 6 7 LTC1 4 AES1 8 DARS 2 0484MHz 8 9 LTC1 4 AES1 8 DARS 2 0484MHz 10 11 LTC1 4 AES1 8 DARS 2 0484MHz 12 13 LTC1 4 AES1 8 DARS 2 0484MHz 14 15 LTC1 4 AES1 8 DARS 2 0484MHz 16 17 LTC1 4 AES1 8 DARS 2 0484MHz 18 19 ...

Страница 60: ... and can be used for the following connector types 10 pin connector Molex 2mm MicroClasp series socket female 9 pin connector D type plug male Figure 10 1 Chassis Connectors Molex 55959 3030 Figure 10 2 Mating Connectors Molex 51353 3000 Table 10 2 GPI RS232 Connector Pin Signal Function 1 Ground 2 Ground 3 RS232 RX 4 RS232 TX 5 GP Input 1 TTL compatible 6 GP Input 2 TTL compatible 7 GP Output 1 O...

Страница 61: ... 1 TTL compatible n c 6 GP Input 2 TTL compatible n c 7 GP Output 1 Open Collector n c 8 GP Output 2 Open Collector n c 9 ONAIR Open Collector 9 10 Ground Figure 10 3 Chassis Connectors Molex 55959 1030 Figure 10 4 Mating Connectors Molex 51353 1000 Table 10 3 RS232 Breakout Cable 10 Pin Micro clasp Signal Function D9 Plug Male 2 10 1 9 10 2 9 1 ...

Страница 62: ...62 Connector Pinouts ACO 4500 User Guide v3 0 ...

Страница 63: ...tailed Calibration Procedure that follows Contact Ross Video for further instructions Calibrating the ACO 4500 The ACO 4500 Calibration Procedure should ideally be performed on a test bench Easy access to the rear panel BNCs is required The following specific equipment is required to perform this procedure At least 2 x 75ohm BNC terminations certified At least 2 x 50ohm BNC terminations certified ...

Страница 64: ...om step 2 for the next channel Use either the same T piece or a second one for applying the terminations 13 If you do not wish to continue use the back button to return to the Main Menu 14 You must exit fully from the Menu system in order to permanently save the new calibration values 15 If you had previously recorded the calibration values when you received the unit the values stored after this c...

Страница 65: ...mains use a cloth or swab dampened with a 75 isopropyl alcohol solution A swab is useful for cleaning in narrow spaces around the controls and connectors Do not use excessive amounts of the approved cleaning solution when cleaning the instrument Do not use abrasive compounds on any part of the instrument Preventive Maintenance Preventive Maintenance mainly consists of periodic cleaning Periodic cl...

Страница 66: ...after spraying into relevant components Some equipment produced by Ross Video contains components that should not be cleaned using these types of cleaners due to the compact nature of the components their operating characteristics or their inaccessibility This is because push buttons for example rely on clean dry conductive contact surfaces to operate correctly Applying Switch Cleaner lubricant on...

Страница 67: ...Support on page 12 A Return Material Authorization number RMA will be issued to you as well as specific shipping instructions should you wish our factory to repair your ACO 4500 If required a temporary replacement frame will be made available at a nominal charge Any shipping costs incurred will be the responsibility of you the customer All products shipped to you from Ross Video Limited will be sh...

Страница 68: ...68 Service Information ACO 4500 User Guide v3 0 ...

Страница 69: ...Keplerian like parameters with corrections that account for the perturbations to the orbit caused by the earth s gravitational field and other forces Epoch is an instant of time or a date from which values of data are referenced Note an Era is the period of time between successive epochs GLONASS refers to the Global Navigation Satellite System GPS refers to global positioning system Operator and U...

Страница 70: ...70 Glossary ACO 4500 User Guide v3 0 ...

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