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Meinberg GPS183PEX Manual

Meinberg GPS183PEX Manual

Gnss-synchronized radio clock for pci express
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MANUAL
GPS183PEX
GNSS-Synchronized Radio Clock
for PCI Express
Meinberg Funkuhren GmbH & Co. KG

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  • Page 1 MANUAL GPS183PEX GNSS-Synchronized Radio Clock for PCI Express Meinberg Funkuhren GmbH & Co. KG...

  • Page 3: Table Of Contents

    Surge Protection and Grounding ....... . . Installing the GPS183PEX in the Host System ......
  • Page 4 12.5.2 Meinberg GPS Time String ........

  • Page 5: Imprint And Legal Information

    1 Imprint and Legal Information 1 Imprint and Legal Information Publisher Meinberg Funkuhren GmbH & Co. KG Registered Place of Business: Lange Wand 9 31812 Bad Pyrmont Germany Telephone: +49 (0) 52 81 – 93 09 - 0 Fax: +49 (0) 52 81 – 93 09 - 230 The company is registered in the "A"...

  • Page 6: Change Log

    1.05 2016-04-21 Baud rate & framing set to 19200 / 8N1 by default 1.06 2018-06-28 Description of Meinberg Device Manager as optional configuration software New illustration and designation of screw terminal voltage range, housing information 2.00 2023-02-22 Fundamental revision of the manual structure Revision history Chap.

  • Page 7: Copyright And Liability Exclusion

    Meinberg reserves the right to make changes of any type to this document at any time as is necessary for the purpose of improving its products and services and ensuring compliance with applicable standards, laws &...

  • Page 8: Presentation Conventions In This Manual

    This signal word indicates a hazard with a high risk level. Such a notice refers to a procedure or other action that will very likely result in serious injury or even death if not observed or if improperly performed. GPS183PEX...

  • Page 9: Secondary Symbols Used In Safety Warnings

    Warnings of risks of product damage, data loss, and also information security risks are indicated with this type of warning box. Information: Additional information that may be relevant for improving efficiency or avoiding confusion or misunder- standings is provided in this form. GPS183PEX...

  • Page 10: Generally Applicable Symbols

    The presence of the “ESD” symbol is indicative of a risk of product damage caused by electrostatic discharge. Direct Current (DC) (symbol definition IEC 60417-5031) Alternating Current (AC) (symbol definition IEC 60417-5032) Grounding Terminal (symbol definition IEC 60417-5017) Protective Earth Connection (symbol definition IEC 60417-5019) Disconnect All Power Connectors (symbol definition IEC 60417-6172) GPS183PEX...

  • Page 11: Important Safety Information

    It is the responsibility of the operator to ensure that the product is safely and properly used. Should you require additional assistance or advice on safety-related matters for your product, Meinberg’s Technical Support team will be happy to assist you at any time. Simply send a mail techsupport@meinberg.de.

  • Page 12: Product Documentation

    If any of the safety information in the product documentation is unclear for you, do not continue with the set-up or operation of the device! Safety standards and regulations change on a regular basis and Meinberg updates the corresponding safety information and warnings to reflect these changes. It is therefore recommended to regularly visit the Meinberg website at https://www.meinbergglobal.com...

  • Page 13: Safety During Installation

    • Never short-circuit the battery! • Never attempt to recharge the battery! • Never throw the battery in a fire or dispose of it in an oven! • Never dispose of the battery in a mechanical shredder! GPS183PEX...

  • Page 14: Important Product Information

    • The device is only deemed to be appropriately used and EMC limits (electromagnetic compatibility) are only deemed to be complied with while the device housing is fully assembled in order to ensure that requirements pertaining to cooling, fire safety, electrical shielding and (electro)magnetic shielding are upheld. GPS183PEX...

  • Page 15: Maintenance And Modifications

    6 Important Product Information 6.4 Maintenance and Modifications Important! Before performing any maintenance work on or authorized modification to your Meinberg system, we recommend making a backup of any stored configuration data (e.g., to a USB flash drive from the Web Interface).

  • Page 16: Prevention Of Esd Damage

    Systems and modules with ESDS compo- nents usually bear this symbol. Important! Due to its complexity, the GPS183PEX is especially sensitive to electrostatic discharges and requires special care when handling. Please consider wearing special industrial-grade ESD-proof clothing and shoes when handling the product.

  • Page 17: Disposal

    It can be returned to Meinberg for disposal. Any transportation expenses for returning this product (at end-of- life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself. If you wish for Meinberg to handle disposal for you, please get in touch with us. Otherwise, please use the return and collection systems provided within your country to ensure that your device is disposed of in a compliant fashion to protect the environment and conserve valuable resources.

  • Page 18: Introduction

    As shown in the diagram above, the PCI Express interface serves three primary purposes: communication of management data between the GPS183PEX card and the host PC, communication of time data from the card to the host PC to allow the host PC’s operating system to synchronize the time of the mainboard’s real-time clock, and delivery of the required power from the host PC’s power source to the card.
  • Page 19 GPSANTv2 Multi-GNSS Antenna Multi-Band Antenna Compatible The GPS183PEX is designed for operation with the Meinberg GPSANTv2 Antenna, which allows the use of longer antenna routes. Please refer to the following chapters for more information: • Chapter 8.1, “Installing a GPS Antenna”...

  • Page 20: Manual Revisions

    This version of the manual has been prepared based on the feature set provided by Firmware Version 1.20 of your GPS183PEX as well as MbgMon Version 3.16. When using GPS183PEX with different firmware or software versions, there may be noticeable differences, for example in the presentation and availability of options in the user interface.

  • Page 21: Basic Installation And Setup Of The Gps183Pex

    8 Basic Installation and Setup of the GPS183PEX This chapter describes how to set up the basic infrastructure required for operation of the GPS183PEX, how to install the card itself, and how to install and configure the software drivers and management software on the host PC.

  • Page 22: Installing A Gps Antenna

    8.1.1 Selecting the Antenna Location There are essentially two ways a compatible Meinberg GPS Antenna (such as a GPSANTv2) can be installed using the accessories included: 1. Mounted on a pole 2.
  • Page 23 • A clear view between the 55 north and 55 south parallels (satellite orbits). Information: Problems may arise with the synchronization of your Meinberg time server if these conditions are not met, as four satellites must be located to calculate the exact position. GPS183PEX...

  • Page 24: Installation Of The Antenna

    • Do not carry out any work on the antenna installation or the antenna cable if there is a risk of lightning strike. • Do not perform any work on the antenna installation if it is not possible to maintain the prescribed safety distance from exposed power lines or electrical substations. GPS183PEX...
  • Page 25 8 Basic Installation and Setup of the GPS183PEX Mount the Meinberg GPS Antenna (as shown in Fig. 3) at a distance of at least 50 cm (1.6 ft) to other antennas using the mounting kit provided, either onto a vertical pole of no more than 60 mm (2.36 in) diameter or directly onto a wall.

  • Page 26: Antenna Cable

    Meinberg provides suitable cable types with its antennas and these are ordered together with the antenna to match the length you need from your antenna to your Meinberg reference clock. The route to be covered for your antenna installation should be determined and the appropriate cable type selected accordingly before confirming your order.
  • Page 27 The propagation of the signal from the antenna to the receiver (reference clock) can incur a certain delay. This delay can be compensated for in the Meinberg Monitoring Tool "MbgMon". If you are using standard RG58 or RG213 cable, the length of the cable can be simply entered in meters by selecting "By Length".
  • Page 28 Fig. 4.1: "Rcvr. Config" menu in MbgMon Chapter 8.1.4, “Surge Protection and Grounding” explains how to implement effective surge protection for an antenna installation. GPS183PEX...

  • Page 29: Surge Protection And Grounding

    Please refer to the standards regarding antenna installations (e.g., DIN EN 60728-11) for more information. However, in order to preserve the safety of the building and to protect your Meinberg system, Meinberg recommends the use of the MBG-S-PRO surge protector, which is addressed in more detail later in this chap- ter.

  • Page 30: Electrical Bonding

    M8 nut (Pos. 4) onto the thread of the grounding bolt. Tighten the nut (Pos. 4) with a max. torque of 6 Nm. Once the antenna has been correctly installed with the grounding cable, connect the grounding cable to the bonding bar (see Fig. 5 and 6). GPS183PEX...
  • Page 31 8 Basic Installation and Setup of the GPS183PEX The following drawings illustrate how a Meinberg GPS Antenna can be installed in accordance with the above conditions on a pole (e.g., antenna pole) or building roof. Antenna Installation without Insulated Lightning Rod System α...
  • Page 32 Antenna Installation with Insulated Lightning Rod System α Fig. 6: Roof Installation Meinberg GPS Antenna Lightning Rod Lightning Rod Conductor Antenna Cable Bonding Conductor Bonding Bar Foundation Electrode Safety Zone GPS183PEX...

  • Page 33: Installation Conditions

    8 Basic Installation and Setup of the GPS183PEX Optional MBG S-PRO Surge Protector Information: The surge protector and suitable coaxial cable are not included as standard with a Meinberg GPS Antenna, but can be ordered as an optional accessory. Construction The MBG-S-PRO is a surge protector (Phoenix CN-UB-280DC-BB) for coaxial connections.

  • Page 34: Installation And Connection

    Meinberg system in order to prevent destructive potential differences. Connect the coaxial cable from the antenna to one of the surge protector connectors, then connect the other surge protector connector to the coaxial cable leading to the Meinberg reference clock. Caution!

  • Page 35: Installing The Gps183Pex In The Host System

    PC to dissipate before beginning with the installation. This chapter explains how to install the GPS183PEX in your PC or server system. Please note that this guide assumes that the card is being installed in an upright ATX or EATX enclosure.
  • Page 36 Ensure that the corresponding rear cover panel is removed if not already done. Insert the GPS183PEX into the PCI Express slot, taking care to hold the card by the edges while doing so. A certain amount of force may be required to ensure that the PCI Express connector is inserted securely into the slot;...

  • Page 37: Installation Of Drivers And Software

    Meinberg Time Service as long as the Meinberg Time Service is synchronized to a reference source. If this option is not selected, it is likely that the GPS183PEX and NTP service will clash and result in timing errors in the host PC clock.
  • Page 38 Ensure that the tab “Radio Clock” is selected in the lower half of the window. In the “Radio Clock” drop-down menu, ensure that GPS183PEX is selected. If your GPS183PEX does not appear in the menu, the drivers may not be correctly installed. In this case, remove the Meinberg Driver & Software Package (see Uninstallation below) and reinstall, ensuring that you do so with administrative privileges.

  • Page 39: Further Information

    Base at the following link: https://kb.meinbergglobal.com/kb/driver_software/driver_software_for_windows/mbgtools_for_windows Uninstallation The Meinberg Driver & Software Package can be uninstalled from the host PC using the “Uninstall” tool from the Windows Start Menu or from the Windows program management tool (Add/Remove Programs or Apps and Features).

  • Page 40: Installation Of Drivers And Software Under Linux

    8.3.2 Installation of Drivers and Software under Linux Meinberg provides an all-in-one driver & tool package for Linux users that includes the drivers required to not only manage the GPS183PEX’s configuration and monitor its status but also to synchronize the host PC’s clock.
  • Page 41 This should return one or more entries with “System peripheral: Meinberg Funkuhren” for each Meinberg PCI Express card in your system. If you have not already done so, you should download the Meinberg Linux Driver Package, which is avail- able from the Meinberg website at the following link: https://www.meinbergglobal.com/english/sw Once downloaded, you may unpack the .tar.gz archive into a suitable subdirectory with:...
  • Page 42 GPS183PEX’s operation. Uninstallation The Meinberg Driver & Tools Package can be uninstalled from the host PC by executing the following from the command line while in the directory in which the Meinberg Driver & Tools archive was unpacked:...
  • Page 43 When downloading a new driver archive, please ensure that you unpack it to a new folder. If you have downloaded the driver archive by cloning the Meinberg Git repository, you can update the contents of the build folder by pulling the latest updates to the Master branch by executing: git pull while the current directory is the build folder.

  • Page 44: Cable Connections

    Once this process has been completed, you can proceed with the configuration of your GPS183PEX. Please note that even once the GPS183PEX has a GNSS lock, it may take some time for your GPS183PEX to begin synchronizing the clock of the host PC and generate signals via the outputs, as the card’s oscillator still needs to adjust to the time reference.

  • Page 45: Mbgmon Guide

    PC. Set Ref. Clock Time: This is used to manually set the time of the GPS183PEX (not the host PC clock). This can be helpful to speed up the synchronization process as the GPS183PEX typically will not make hard adjustments to the time and may not adjust the time at all if the discrepancy between the reference clock’s...
  • Page 46 (relating to the Meinberg time services running on the host PC) and system-level events (relating to events logged by the GPS183PEX itself), and also load a previously saved log file for reference. The window also provides filter options to limit output to events...

  • Page 47: Upper Panel

    Time Adjustment Service (if any). 9.1.2.2 Time Service The Time Service tab of the upper panel shows a number of advanced settings relating to the Meinberg Time Service. Important! Any changes here must be saved using the Save button before switching to another tab.

  • Page 48: Expert Settings

    9.1.2.3 Service Events The Service Events tab of the upper panel contains a number of advanced settings relating to how the Meinberg Time Service responds to the GPS183PEX achieving and losing synchronization. Important! Any changes here must be saved using the Save button before switching to another tab.
  • Page 49 GPS183PEX loses synchronization with its reference signal and when it achieves synchronization respectively. Async Event This is the shell command that is executed when the GPS183PEX loses Command: synchronization with its reference signal. By default, this is set to net stop ntp, which will stop the NTP service.

  • Page 50: Lower Panel

    The Radio Clock tab of the lower panel shows status information relating to the selected reference clock, i.e., the GPS183PEX. This includes the current time of the reference clock, its operating mode, synchronization state, as well as GNSS-related information such as the detected position, the satellites that should be visible according to the current almanac, and those that the GPS183PEX actually has a lock on.
  • Page 51 GPS183PEX. The GPS183PEX assumes a delay of 5 ns per meter of RG58 cable. Thus, by way of example, if 30 m is entered here, the GPS183PEX will apply a 150 ns correction to the received time.
  • Page 52 9.1.3.5 COM Port The COM Port tab of the lower panel provides configuration options for the time string output of the GPS183PEX. The two tabs COM0 and COM1 relate to the RS-232 pin outputs in the box headers on the GPS183PEX board.
  • Page 53 GPS183PEX (i.e., it will begin immediately upon initialization of the GPS183PEX). 9.1.3.6 IRIG Out The IRIG Out tab of the lower panel provides configuration options for the timecode output of the GPS183PEX. IRIG TX Code Format: Specifies the data format of the output signal. Each option represents both an amplitude-modulated timecode format and its pulse-width modulated DCLS equivalent.
  • Page 54 The Pulses tab of the lower panel provides configuration options for the programmable signal output of the GPS183PEX. It features four tabs Out 1 through Out 4. These represent four signal channels on the GPS183PEX that are output via the pins PPO_0 to PPO_3 (Out 1 = PPO_0, Out 4 = PPO_3).
  • Page 55 “Synth”). 9.1.3.8 Synth The Synth tab of the lower panel provides configuration options for the frequency synthesizer of the GPS183PEX. The frequency synthesizer output is enabled by selecting the option Frequency Synthesizer as the output signal for one of the programmable signal channels ( Chapter 9.1.3.7,...
  • Page 56 9.1.3.11 Revision The Revision tab of the lower panel provides some internal information relating to the GPS183PEX, including the kernel version, device type, serial number, and firmware ID. Meinberg recommends making a note of this information when contacting Meinberg Technical Support, as it can be useful for diagnosing problems and find-...

  • Page 57: Gps183Pex Indicators And Connectors

    10 GPS183PEX Indicators and Connectors 10 GPS183PEX Indicators and Connectors Information: The numbering in the drawing above relates to the relevant subsection in this chapter. GPS183PEX...

  • Page 58: Am Timecode Output

    10.1 AM Timecode Output Connector Type: BNC, Female (on device) Output Signal: AM Timecode (IRIG-B12x, AFNOR NF S87-500 IEEE 1344, IEEE C37.118) Signal Level: / 1 V (MARK/SPACE) with 50 load Carrier Frequency: 1 kHz (IRIG-B12x) Cable: Coaxial Cable, Shielded GPS183PEX...

  • Page 59: Status Leds

    10 GPS183PEX Indicators and Connectors 10.2 Status LEDs “T ” LED: Initialization status of reference clock “N” LED: Navigation data (position/time) is available “A” LED: Antenna status “F ” LED: Lack of available reference sources Colors Description Blue The internal firmware is initializing and a connection is being established with the host PC.

  • Page 60: D-Sub 9 Output Port

    10.3 D-Sub 9 Output Port The D-Sub 9 output of the GPS183PEX provides out- puts for a number of clock signals generated on the GPS183PEX board. The output of certain pins is dependent on the state of the DIP switches on the board of the GPS183PEX.

  • Page 61: Antenna Input: Gps Receiver

    10 GPS183PEX Indicators and Connectors 10.4 Antenna Input: GPS Receiver Danger! Do not work on the antenna installation during thunderstorms! Danger of death from electric shock! • Do not carry out any work on the antenna installation or the antenna cable if there is a risk of lightning strike.

  • Page 62: Updating The Firmware

    11 Updating the Firmware While Meinberg continuously updates the firmware of the GPS183PEX, it is generally not necessary to update your firmware so unless a specific need arises. If the firmware fails to install due to improper handling, your GPS183PEX may become inoperable and require servicing by Meinberg.

  • Page 63: Technical Appendix

    12 Technical Appendix 12 Technical Appendix 12.1 Technical Specifications: GPS183PEX Receiver: 12-channel C/A code receiver based on frequency downconversion technology Supply Voltage for 15 V Antenna: Surge Immunity: IEC 61000-4-5 Level 4 (test voltage: 4000 V; max. peak current given 2...

  • Page 64: Technical Specifications: Gpsantv2 Antenna

    12.2 Technical Specifications: GPSANTv2 Antenna Physical Dimensions GPS183PEX...

  • Page 65: Electrical Specifications

    Group Delay Ripple within 2.4 MHz Max. 15 ns System Bandwidth: Polarization: Right-Hand Circular Polarization ETSI-Compliant Frequency Blocked frequency range further extended to 6 GHz Blocking: –40 dBm P1dB Input: Antenna Pattern: Vertical 3 dB Angle Width: 100 centered around azimuth GPS183PEX...

  • Page 66: Mechanical And Environmental Specifications

    –60 C to +80 C (–76 C to +176 F) Temperature Range (Storage): –20 C to +70 C (–4 C to +158 F) Relative Humidity (Operation): 5 % to 95 % (non-condensing) Weight: 1.4 kg (3.09 lbs), including mounting kit GPS183PEX...

  • Page 67: Technical Specifications: Mbg-S-Pro Surge Protector

    Data Sheet (Download): https://www.meinbergglobal.com/download/docs/shortinfo/english/cn-ub-280dc-bb_pc.pdf 12.4 Overview of Programmable Signals Meinberg systems with programmable pulse outputs provide the following signal options; the actual range of available signal options will vary from system to system: Idle Selecting "Idle" allows individual programmable outputs to be disabled individually.

  • Page 68: Single Shot

    For example, if a cycle time of 1:45.00 is set, this will output pulses at intervals of 6300 seconds. However, between the last pulse of any given day and the pulse at midnight on the following day, there will be an interval of just 4500 seconds. GPS183PEX...
  • Page 69 DC level shift timecode. The timecode output here is configured in the “Clock” “IRIG Settings” section of the Web Interface. Synthesizer Frequency This mode is used to output a custom frequency, which is defined using the “Clock” “Synthesizer” sec- tion of the Web Interface. GPS183PEX...

  • Page 70: Time String Formats

    12.5.1 Meinberg Standard Time String The Meinberg Standard time string is a sequence of 32 ASCII characters, starting with the character <STX> (Start of Text, ASCII code 02h) and terminated with the character <ETX> (End of Text, ASCII code 03h). The format is as follows: <STX>D:dd.mm.yy;T:w;U:hh.mm.ss;uvxy<ETX>...

  • Page 71: Meinberg Gps Time String

    12.5.2 Meinberg GPS Time String The Meinberg GPS time string is a sequence of 36 ASCII characters, starting with the <STX> (Start of Text) character and ending with the <ETX> (End of Text) character. Unlike the Meinberg Standard time string, it does not contain UTC time or time adjusted to any local time zone.

  • Page 72: Meinberg Capture Time String

    12.5.3 Meinberg Capture Time String The Meinberg Capture time string is a sequence of 31 ASCII characters, terminated with the sequence <CR> (Carriage Return, ASCII code 0Dh) and <LF> (Line Feed, ASCII code 0Ah). The format is as follows: CHx<SP>dd.mm.yy_hh:mm:ss.fffffff<CR><LF>...

  • Page 73: Atis Time String

    (00–59) ss seconds (00–59, or 60 during leap second) Day of the Week (1–7, 1 = 31h = Monday) Checksum in hexadecimal, generated from all characters including GID, ABS, TSQ, CC, ST, etc. Carriage Return, ASCII code 0Dh <CR> GPS183PEX...

  • Page 74: Sat Time String

    Announcement for time jump during last hour before event: “!” Announcement of start or end of Daylight Saving Time “ ”(Space, ASCII code 20h) nothing announced Carriage Return, ASCII code 0Dh <CR> Line Feed, ASCII code 0Ah <LF> End of Text, ASCII code 03h <ETX> GPS183PEX...

  • Page 75: Uni Erlangen Time String (Ntp)

    Leap second is currently to be inserted (only active in 60th second) “ ” (Space, ASCII code 20h) No leap second announced Geographical latitude of the receiver position in degrees bbb.bbbb Leading zeroes are padded with spaces (ASCII code 20h) GPS183PEX...
  • Page 76 Prime meridian hemisphere, possible characters are: “E” East of Greenwich Meridian “W” West of Greenwich Meridian Altitude in meters of receiver position above WGS84 ellispoid hhhh Leading zeroes are padded with spaces (ASCII code 20h) End of Text, ASCII code 03h <ETX> GPS183PEX...

  • Page 77: Nmea 0183 String (Rmc)

    West of Greenwich Meridian Speed over the ground in knots and track angle in degrees. 0.0,0.0 With a Meinberg GPS clock, these values are always 0.0, with GNS clocks, the values are calculated by the receiver for mobile applications. Current Date:...

  • Page 78: Nmea 0183 Time String (Gga)

    Meters (unit as fixed value) Geoid Separation (WGS84 Altitude - MSL Altitude) ggg.g Meters (unit as fixed value) Checksum (XOR sum of all characters except "$" and " * ") Carriage Return, ASCII code 0Dh <CR> Line Feed, ASCII code 0Ah <LF> GPS183PEX...

  • Page 79: Nmea 0183 Time String (Zda)

    (00– 13) Minutes (00–59) The date: dd,mm,yy Day of Month (01–31) Month (01–12) Year (0000–9999) yyyy Checksum (XOR of all characters except "$" and " * ") Carriage Return (ASCII code 0Dh) <CR> Line Feed (ASCII code 0Ah) <LF> GPS183PEX...

  • Page 80: Abb Spa Time String

    (000–999) Checksum. This is calculated as the XOR sum of the preceding characters. The resultant 8-bit value is reported as a hex value in the form of two ASCII characters (0-9 or A-F) Carriage Return (ASCII code 0Dh) <CR> GPS183PEX...

  • Page 81: Computime Time String

    Day of the month (01–31) Day of the week (01–07, 01 = Monday) The current time: hh:mm:ss Hours (00–23) Minutes (00–59) Seconds (00–59, or 60 during leap second) Carriage Return, ASCII code 0Dh <CR> Line Feed, ASCII code 0Ah <LF> GPS183PEX...

  • Page 82: Racal Time String

    Control character (ASCII code 47h) Control character (ASCII code 55h) Current date: yymmdd Year of Century (00–99) Month (01–12) Day of Month (01–31) Current time: hh:mm:ss Hours (00–23) Minutes (00–59) Seconds (00–59, or 60 during leap second) Carriage Return (ASCII code 0Dh) <CR> GPS183PEX...

  • Page 83: Sysplex-1 Time String

    (00–59) Seconds (00–59, or 60 during leap second) Clock Status: Space (ASCII code 20h) Time Sync (GPS Lock) “?” (ASCII code 3Fh) No Time Sync (GPS Fail) Carriage Return, ASCII code 0Dh <CR> Line Feed, ASCII code 0Ah <LF> GPS183PEX...

  • Page 84: Ion Time String

    (00–59) Seconds (00–59, or 60 while leap second) Quality Indicator Space (ASCII code 20h) Time Sync (GPS Lock) “?” (ASCII code 3Fh) No Time Sync (GPS Fail) Carriage Return (ASCII code 0Dh) <CR> Line Feed (ASCII code 0Ah) <LF> GPS183PEX...

  • Page 85: Ion Blanked Time String

    (00–59) Seconds (00–59, or 60 during leap second) Clock Status: Space (ASCII code 20h) Time Sync (GPS Lock) “?” (ASCII code 3Fh) No Time Sync (GPS Fail) Carriage Return, ASCII code 0Dh <CR> Line Feed, ASCII code 0Ah <LF> GPS183PEX...

  • Page 86: Irig-J Timecode

    Start of Header (ASCII code 01h) <SOH> Day of the year (ordinal date, 1–366) Time of the start bit in hours (HH), minutes (MM), seconds (SS) HH, MM, SS Carriage Return, ASCII code 0Dh <CR> Line Feed, ASCII code 0Ah <LF> GPS183PEX...

  • Page 87: 6021 Time String

    UTC time, while the 3-bit value represented by the least significant bits 001 indicates that the day is Monday. Current time: hhmmss Hours (00–23) Minutes (00–59) Seconds (00–59, or 60 during leap second) Current date: ddmmyy (01–31) Month (01–12) Last two digits of year (00–99) GPS183PEX...
  • Page 88 * With ASCII nibbles, the actual ASCII character itself (0-9, A-F, ASCII codes 0x30h–0x39h and 0x41h–0x46h) represents the hexadecimal equivalent of a 4-bit binary sequence. For example, if the clock outputs “A” at these positions, this is equivalent to a binary sequence of 0x1010b. Please note that it is not the binary equivalent of the ASCII code (0x41h) itself. GPS183PEX...

  • Page 89: Freelance Time String

    UTC time, while the 3-bit value represented by the least significant bits 001 indicates that the day is Monday. Current time: hhmmss Hours (00–23) Minutes (00–59) Seconds (00–59, or 60 during leap second) Current date: ddmmyy (01–31) Month (01–12) Last two digits of year (00–99) GPS183PEX...
  • Page 90 * With ASCII nibbles, the actual ASCII character itself (0-9, A-F, ASCII codes 0x30h–0x39h and 0x41h–0x46h) represents the hexadecimal equivalent of a 4-bit binary sequence. For example, if the clock outputs “A” at these positions, this is equivalent to a binary sequence of 0x1010b. Please note that it is not the binary equivalent of the ASCII code (0x41h) itself. GPS183PEX...

  • Page 91: Itu-G8271-Y.1366 Time-Of-Day Message

    PPS. The ITU-G8271-Y.1366 time message itself output by Meinberg clocks is always a sequence of 21 bytes. While the standard briefly references the use of two ASCII characters for the first two characters, it should be noted that this message is not an ASCII string in the typical sense.

  • Page 92: Cisco Ascii Time String

    Sync state of clock: * : Clock is synchronized to reference !: Clock is not synchronized The format revision. With Meinberg clocks, this will always be ’A’. The current date in Modified Julian Date format. mjdxx The current date in Gregorian yy/mm/dd format.

  • Page 93: Ntp Type 4 Time String

    Hours (00–23) Minutes (00–59) Seconds (00–59, or 60 while leap second) Milliseconds (000–999) Leap second announcement: Space: No leap second announcement ’L’: Leap second pending Daylight Savings Time indicator: ’S’: Standard Time (wintertime) ’D’: Daylight Savings Time (summertime) GPS183PEX...

  • Page 94: General Information About Timecode

    In addition to these general-purpose time signals, there are other codes in use designed for specific appli- cations, among them NASA36, XR3, or 2137. The GPS183PEX, however, limits itself to the output of IRIG-A, IRIG-B, AFNOR NF S87-500, and IEEE 1344 formats, as well as IEEE C37.118, the successor to IEEE 1344.
  • Page 95 Identical to IEEE 1344, but with UTC offset +/- sign bit reversed NASA 36: 100 pps, AM sine-wave signal, 1 kHz carrier frequency, Time Resolution: 10 ms (DCLS), 1 ms (AM carrier) BCD time-of-year: 30 bits – seconds, minutes, hours, and days GPS183PEX...

  • Page 96: Timecode Format According To Irig Standard

    12.6.2 Timecode Format According to IRIG Standard GPS183PEX...

  • Page 97: Timecode Format According To Afnor Standard

    12 Technical Appendix 12.6.3 Timecode Format According to AFNOR Standard GPS183PEX...

  • Page 98: Rohs And Weee

    WEEE-compliant fashion, it may be returned to the manufacturer. Any transportation ex- penses for returning this product (at end-of-life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself. GPS183PEX...

  • Page 99: Declaration Of Conformity For Operation In The European Union

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