Meinberg PZF511 Technical Information & Operating Instructions
Meinberg PZF511 Technical Information & Operating Instructions

Meinberg PZF511 Technical Information & Operating Instructions

High precision receive module for the dcf77-signal

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Technical Information
Operating Instructions
PZF511

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Summary of Contents for Meinberg PZF511

  • Page 1 Technical Information Operating Instructions PZF511...
  • Page 2 Impressum Meinberg Funkuhren GmbH & Co. KG Lange Wand 9 D-31812 Bad Pyrmont Phone: +49 (0) 52 81 / 9309-0 Fax: +49 (0) 52 81 / 9309-30 Internet: http://www.meinberg.de Email: info@meinberg.de February 24, 2010...
  • Page 3: Table Of Contents

    Table of contents General information ................5 Features PZF511 .................. 6 Installation PZF511 ................7 Operating voltage ................ 7 Antenna ..................7 Assembly of antenna ............7 Front panel .................... 8 Pilot lamps .................... 8 Display ....................9 Control keys ..................9 Menu items ...................
  • Page 4 Replacing the lithium battery .............. 24 CE Label .................... 24 Technical specifications ..............25 PZF511 with different oscillator options ........27 Time Strings ................28 Format of the Meinberg Standard Time String....28 Format of the ATIS standard Time String......29 Format of the Uni Erlangen String (NTP) ......
  • Page 5: General Information

    General information The German long wave transmitter DCF77 started continious operation in 1970. The introduction of time codes in 1973 build the basic for developing modern radio remote clocks. The carrier frequency of 77.5kHz is amplitude modulated with time marks each second.
  • Page 6: Features Pzf511

    AM-time code receiver. The precise regulation of the main oscillator of the radio clock is possible therefore. So, the PZF511 can be used as a standard frequency generator besides the application as a time code receiver.
  • Page 7: Installation Pzf511

    The antenna must be placed in longitudinal direction to the DCF-transmitter (Frankfurt). The nearness to microcompu- ters should be avoided (PZF511 included) and the antenna should be installed with a minimum distance of 30cm to all metal objects, if possible. A distance of several meters to TV- or computermonitors must be kept.
  • Page 8: Front Panel

    If the 'Freil.'-LED is on, it was not possible to synchronize the internal realtime clock to DCF-time. This condition occures for at most two minutes after switching on the PZF511, because two DCF-telegrams are checked for plausibility before the data is taken over. Short disturbance of receiption can cause this state too.
  • Page 9: Display

    Menu items The type of DCF-clock and the software revision are displyed first after power-up. The following informations are readable before the PZF511 switches to time-display auto- matically: The handling of any queries will be simplified if the software revision is given by the user.
  • Page 10: Menu Date

    Menu DATE After the Set button is pressed, the actual date appears on the display. Menu DAY o.W. The day of the week will be displayed in this menu. Menu PZF STAT Information on the decoding of the pseudo-random sequence is available in this menu. The following texts may be displayed: This message indicates that the system tries to achieve a coarse synchronisation.
  • Page 11: Menu Field

    'Assembly of antenna'. Menu SETUP The user-specific parameters of the PZF511 are set in this menu. To avoid the erroneous change of these parameters, it is not possible to enter the submenus by a simple pressing of the Set-button.
  • Page 12: Menu Synth

    Menu SYNTH. The output frequency of the internal synthesizer is selected in this menu. This can be done in the range of 1/3Hz to 9.999MHz. The frequency can be set here and the buttons are used the same way as for setting the DIST.o.T-value.
  • Page 13: Menu Par.comx

    Menu STR.COMx The three menus STR.COM0 to STR.COM2 allow the selection of the serial time strings for COM0, COM1 and COM2. The following time strings can be selected: - MBG - Meinberg Standard String - Uni Erlangen String - ATIS String...
  • Page 14: Menu Irig

    Menu IRIG This menu allows to select an IRIG, AFNOR or IEEE1344 timecode to be generated. Besides the amplitude modulated sine wave signal, the PZF511 also provides an unmodulated DC-Level Shift TTL output in parallel. Thus six time codes are available.
  • Page 15: Menu Osz.adj

    Meinberg only. Menu SER. No. The 12-digit serial number of the PZF511 is displayed in this menu. This number may be helpful to know if the user asks Meinberg for support. The most significant eight digits of the serial number are displayed first, after pressing the...
  • Page 16: Asynchronous Serial Interfaces

    Three independant serial RS232 interfaces are available at the rear connector of the clock PZF511. As set in menu SER.MODE, the serial ports can send the a time string either per second, per minute or on request by sending an ASCII '?' (3F hex) to the clock.
  • Page 17: Frequency Synthesizer

    Frequency synthesizer The synthesizer of the PZF511 generates a frequency in the range of 1/3Hz up to 9.999MHz, which can be set in the menu SYNTH. The synthesizer-output is available with TTL-level, as a sinewave signal or an open drain output at the VG-connector.
  • Page 18: Block Diagram Timecode

    Block Diagram Timecode...
  • Page 19: Irig Standard Format

    IRIG Standard Format...
  • Page 20: Afnor Standard Format

    AFNOR Standard Format...
  • Page 21: Assignment Of Cf Segment In Ieee1344 Code

    Assignment of CF Segment in IEEE1344 Code B it N r. B e de utung B e s chre ibung Position Identifier P5 Year BC D encoded 1 Year BC D encoded 2 unteres N ibble des BCD codierten Jahres Year BC D encoded 4 Year BC D encoded 8 empty, always zero...
  • Page 22: Dc And Am Timecodes

    13a with TTL level. DCF77 Emulation The correlation receiver PZF511 generates TTL level time marks (active HIGH) which are compatible with the time marks spread by the German long wave transmitter DCF77. This long wave transmitter installed in Mainflingen near Frankfurt/Germany transmits the reference time of the Federal Republic of Germany: time of day, date of month and day of week in BCD coded second pulses.
  • Page 23: Realtime Clock

    Realtime clock The PZF511 includes a battery-backed realtime clock which runs crystal-precise in case of power failure. A relativ accurate time is present immediately after power-up this way. An additional RAM of the realtime clock is used to store important system parameters.
  • Page 24: Firmware Updates

    COM0. The new firmware can be sent to PZF511 from any standard PC with serial interface. A loader program will be shipped together with the file containing the image of the new firmware.
  • Page 25: Technical Specifications

    TTL-level, pulse duration: 200ms Active-high pulses per 15 minutes, TTL, pulse duration: 200ms ACCURACY OF PULSES: Time delay of two systems PZF511 with a maximum distance of 50km: typ. 20µs, max. 50µs Time shifting of successive pulses: max. 1.5µs PROPAGATION-...
  • Page 26 STANDARD FREQUENCIES: 100kHz, 155kHz, 1MHz and 10MHz are synchronized to DCF by a digital PLL. For accuracy refer to table "Oscillator Types". SYNTHESIZER: Frequency range: 1/3Hz...9,999MHz Accuracy: < 10kHz: refer to table "Oscillator Types" > 10kHz: +/- 2,35mHz max. Phase jitter: max.
  • Page 27: Pzf511 With Different Oscillator Options

    PZF511 with different oscillator options The correlation receiver PZF511 can be equipped with several different oscillator types. Compared with the standard version (TCXO) the accuracy specifications are changed as given in the following table: r e t l i b y t i τ...
  • Page 28: Time Strings

    Time Strings Format of the Meinberg Standard Time String The Meinberg Standard Time String is a sequence of 32 ASCII characters starting with the STX (start-of-text) character and ending with the ETX (end-of-text) character. The format is: <STX>D:dd.mm.yy;T:w;U:hh.mm.ss;uvxy<ETX> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string.
  • Page 29: Format Of The Atis Standard Time String

    Format of the ATIS standard Time String The ATIS standard Time String is a sequence of 23 ASCII characters terminated by a CR (Carriage Return) character. The format is: <GID><ABS><TSQ><CC><CS><ST>yymmddhhmmsswcc<GID><CR> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string.
  • Page 30: Format Of The Uni Erlangen String (Ntp)

    Format of the Uni Erlangen String (NTP) The time string Uni Erlangen (NTP) is a sequence of 66 ASCII characters starting with the STX (start-of-text) character and ending with the ETX (end-of-text) character. The format is: <STX>tt.mm.jj; w; hh:mm:ss; voo:oo; acdfg i;bbb.bbbbn lll.lllle hhhhm<ETX> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string.
  • Page 31 anouncement of discontinuity of time, enabled during last hour before discontinuity comes in effect: ‘A’ announcement of leap second insertion ‘ ‘ (space, 20h) nothing announced leap second insertion ‘L’ leap second is actually inserted (active only in 60th sec.) ‘...
  • Page 32: Signal Description Pzf511

    Signal description PZF511 Name Function 32a+c Reference potential VCC in (+5V) 1a+c +5V power supply VDD in (+12V) 2a+c +12V power supply, not used by standard DCF_MARk out DCF77 emulation, TTL, active high pulse duration: 100ms or 200ms P_15MIN out...
  • Page 33: Rear Connector Pin Assignment

    Rear Connector Pin assignment...
  • Page 35: Menüstruktur Pzf511

    Menüstruktur PZF511...
  • Page 36 PZF5 1 1 - PZF5 1 1 - E- 2 4 . 0 2 . 1 0...

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