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Summary of Contents for Meinberg GPS167BGT
- Page 1 Technical Information Operating Instructions GPS167BGT - AP336.505...
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Page 2: Impressum
Impressum Meinberg Funkuhren GmbH & Co. KG Auf der Landwehr 22 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 May 05, 2006... -
Page 3: Table Of Contents
Table of Contents Impressum .................... 2 General Information ................7 The Modular System GPS167BGT ............8 GPS167 Features .................. 9 Time Zone and Daylight Saving ..........10 Pulse and Frequency Outputs ............ 10 Time Capture Inputs ..............11 Asynchronous Serial Ports (optional 4x COM) ......11 DCF77 Emulation .............. - Page 4 The Menus in Detail ................19 Root Menu ................19 Menu RECEIVER POS............21 Menu SV CONSTELLATION ..........21 Menu SV POSITION ............... 22 Menu USER CAPTURE ............22 Menu SETUP................22 SETUP FREQUENCY OUTPUT ......... 23 SETUP ENABLE OUTPUTS........23 SETUP TIME ZONE............
- Page 5 Oscillator specifications ............. 37 Technical Specifications GPS167 Antenna ....... 38 Time Strings ................39 Format of the Meinberg Standard Time String....39 Format of the Meinberg Capture String ......40 Format of the SAT Time String ........41 Format of the Uni Erlangen String (NTP) ......42 Format of the NMEA 0183 String (RMC).......
- Page 6 Technical appendix ................57 Technical Specifications GPS167BGT ..........58 Rear Panel Connectors .............. 58 CE Label ................... 58 Rear panel view GPS167BGT ..........59 SUB-D Connector Assignments ..........60 Connector Assignments Error Relais (Time Sync) ....60 Technical Specifications Power Supply Unit PULS AP336.505 ..61 Front Panel and Rear Connector Pin Assignments ....
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Page 7: General Information
General Information The satellite receiver clock GPS167 has been designed to provide extremly precise time to its user. The clock has been developed for applications where conventional radio controlled clocks can´t meet the growing requirements in precision. High precision available 24 hours a day around the whole world is the main feature of the new system which receives its information from the satellites of the Global Posi- tioning System. -
Page 8: The Modular System Gps167Bgt
The Modular System GPS167BGT GPS167BGT is a set of equipment composed of a satellite controlled clock GPS167 together with a power supply unit PULS AP336.505, both installed in a metal 19" Modular chassis and ready to operate. The interfaces provided by GPS167 are accessi- ble via connectors in the rear panel of the case. -
Page 9: Gps167 Features
GPS167 Features The hardware of GPS167 is a 100mm x 160mm microprocessor board. The 105mm wide front panel integrates a 4 x 16 character LC display, two LED indicators and 4 push buttons. The receiver is connected to the antenna/converter unit by a 50 ohm coaxial cable (refer to "Mounting the Antenna"). -
Page 10: Time Zone And Daylight Saving
Time Zone and Daylight Saving GPS system time differs from the universal time scale UTC (Universal Time Coordi- nated) by the number of leap seconds which have been inserted into the UTC time scale after GPS has been initiated in 1980. The current number of leap seconds is part of the navigation message supplied by the satellites, so GPS167´s internal real time is based on UTC. -
Page 11: Time Capture Inputs
COM0 is compatible with other radio remote clocks made by Meinberg. It sends the time string either once per second, once per minute or on request with ASCII ´?´ only. Also the interfaces can be configured to transmit capture data either automatically when available or on request. -
Page 12: Dcf77 Emulation
DCF77 Emulation The GPS167 satellite controlled clock generates TTL level time marks (active HIGH) which are compatible with the time marks spread by the German long wave transmit- ter 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 13: Programmable Pulse (Optional)
Programmable pulse (optional) At the male connector Typ VG64 there are three programmable TTL outputs (Prog Pulse 0-2), which are arbitrarily programmable using the GPSMON32 software. Other technical details are described at the end of this manual. Timecode outputs (optional) Abstract The transmission of coded timing signals began to take on widespread importance in the early 1950´s. -
Page 14: Installation
Installation Power Supply The power supply used GPS167BGT see "Technical Appendix" at the end of this manual. Mounting the Antenna The GPS satellites are not stationary but circle round the globe in a period of about 12 hours. They can only be received if no building is in the line-of-sight from the antenna to the satellite, so the antenna/converter unit must be installed in a location from which as much of the sky as possible can be seen. -
Page 15: Antenna Short-Circuit
Antenna Short-Circuit In case of an antenna line short-circuit the following message appears in the display: If this message appears the clock has to be disconnected from the mains and the defect is to eliminate. After that the clock can be powered-up again. The antenna supply voltage must be in a range of 18.5V (free) and 16V (connected GPS antenna). -
Page 16: Assembly With Cn-Ub/E (Optional)
Optional the overvoltage protector CN-UB/E is available. Standard you connect the antenna converter directly with the antenna cable to the system. GPS167 Antenna Type N male As short as possible! Type N male CN-UB/E Type N male Meinberg 1.5m max. Type N / BNC male... -
Page 17: Powering Up The System
Powering Up the System If both the antenna and the power supply have been connected the system is ready to operate. About 10 seconds after power-up the receiver´s (OCXO-LQ) until 3 minutes (OCXO-MQ / HQ) has warmed up and operates with the required accuracy. If the receiver finds valid almanac and ephemeris data in its battery buffered memory and the receiver´s position has not changed significantly since its last operation the receiver can find out which satellites are in view now. -
Page 18: The Front Panel Layout
The Front Panel Layout FAIL LED The FAIL LED is turned on whenever the TIME_SYN output is low (receiver is not syn- FAIL LOCK chronized). LOCK LED The LOCK LED is turned on when after power- MENU NEXT up the receiver has acquired at least four satelli- tes and has computed its position. -
Page 19: Next Key
NEXT Key When editing parameters (LCD cursor is visible) this key moves the cursor to the next digit rsp. to the next parameter to be edited. If the current menu just displays data (cursor not visible) pressing this key switches to a submenu (if available). INC Key When editing parameters this key increments the digit or letter at the cursor position. - Page 20 If the NEXT key is pressed one time from the root menu a submenu is displayed showing the receiver´s software revision: If the NEXT key is pressed for second time a submenu is displayed showing other receiver´s infos Meaning of the abbreviations and adjusted standard value: "PROUT: 0"...
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Page 21: Menu Receiver Pos
Menu RECEIVER POS. This menu shows the current receiver position. The NEXT key lets the user select one of three formats. The default format is geographic latitude, longitude and altitude with latitude and longitude displayed in degrees, minutes and seconds. The next format is geographic, too, with latitude and longitude displayed in degrees with fractions of degrees. -
Page 22: Menu Sv Position
Menu SV POSITION This menu gives information on the currently selected satellite (SV). The satellite´s ID number, its elevation, azimuth and distance from the receiver position reflect the satellite´s position in the sky whereas the doppler shows whether the satellite is coming up from the horizon (doppler positive) or going down to the horizon (doppler negative). -
Page 23: Setup Frequency Output
SETUP FREQUENCY OUTPUT This setup menu lets the user edit the frequency and phase to be generated by the on- board synthesizer. Frequencies from 1/3Hz up to 10MHz can be entered using four digits and a range. The range can be selected if the INC key is pressed while the cursor is positioned on the frequency´s units string. -
Page 24: Setup Time Zone
SETUP TIME ZONE This menu lets the user enter the names of the local time zone with daylight saving disabled and enabled, together with the zones´ time offsets from UTC. The left part of the display shows the zone and offset if daylight saving is off whereas the right part shows name and offset if daylight saving is on. -
Page 25: Setup Serial Port Parm
If no changeover in daylight saving is wanted, an identical date and time must be configured in both of the submenus (see fig. below). In addition identical offsets for DAYLIGHT SAV ON/OFF should be configured in the submenu TIMEZONE. (Example for a region without daylight saving time and with a local time offset of +8 hours to UTC.) SETUP SERIAL PORT PARM Using this topic the user can enter transmission speed and framing of each serial port. -
Page 26: Setup Serial String Type
COM2: Meinberg COM1: Capture COM3: Meinberg The following time strings can be selected: Meinberg Standard String GPS167 Capture String SAT String UNI-Erlangen String NMEA String (RMC) SPA String Computime String Other technical details are described at the end of this manual. -
Page 27: Setup Pout X (Optional)
SETUP POUT X (optional) This menu is used for configuration of the pulse outputs. There are three pulse outputs available (POUT 1-3). Mode This field selects the mode of operation of an output. Possible modes are POUT OFF, POUT TIMER, SINGLE PULSE, CYCLIC PULSE, PPS, PPM and PPH. Timer mode If Timer mode is selected, a window as shown above is displayed. -
Page 28: Single Pulse
Single Pulse Selecting Single Pulse generates a single pulse of defined length once per day. You can enter the time when the pulse is generated in the field 'Single Shot Time'. The value in field 'Length' determines the pulse duration. A pulse duration from 10 msec to 10 sec in steps of 10 msec can be selected. -
Page 29: Menu Quick Reference For Progr. Pulse
Menu Quick Reference for progr. Pulse MENU CLR/ACK CLR/ACK MODE NEXT NEXT AKTIV... -
Page 30: Setup Irig Settings (Optional)
SETUP IRIG SETTINGS (optional) This menu lets the user select the timecodes to be generated by GPS167. Most IRIG codes do not carry any time zone information, hence UTC is selected for output by default. If desired, the clock´s local time can be output by selecting "TIME: LOCAL". The IEEE1344 has a so called TFOM (time figure of merit) segment that carries an information on the synchronization state of the radio clock. -
Page 31: Setup Initial Time
SETUP INITIAL TIME If the receiver´s on-board real time clock keeps a wrong time the receiver is unable to compute the satellites´ correct elevation angles and dopplers. This submenu enables the user to change the receiver´s system time for initialization. After the receiver has locked, its real time clock will be adjusted using the information from the satellites. -
Page 32: Force Boot Mode
FORCE BOOT MODE This menu lets the user force the receiver into the Boot Mode. This may be necessary when the satellite datas in the memory are too old or the receiver position has changed by some hundred kilometers since last operation. Syncronisation time may be reduced significant. -
Page 33: Resetting Factory Defaults
Resetting Factory Defaults If both the NEXT key and the INC key on the front panel are pressed while the system is powered up the battery buffered memory is cleared and user definable parameters are reset to factory defaults. The key should be held until the root menu is displayed on LCD. -
Page 34: Skilled/Service-Personnel Only: Replacing The Lithium Battery
Skilled/Service-Personnel only: Replacing the Lithium Battery The life time of the lithium battery on the board is at least 10 years. If the need arises to replace the battery, the following should be noted: ATTENTION! Danger of explosion in case of inadequate replacement of the lithium battery. -
Page 35: Technical Specifications Gps167
Technical Specifications GPS167 RECEIVER: 6 channel C/A code receiver with external antenna/converter unit ANTENNA: Antenna/converter unit with remote power supply refer to chapter "Technical Specifications GPS167 Antenna" ANTENNA INPUT: antenna circuit DC-insulated; dielectric strength: 1000V Length of cable: refer to chapter "Mounting the Antenna" LC DISPLAY: 4x16 character, menu selectable by push buttons TIME TO SYNCHRO-... - Page 36 SYNTHESIZER: 1/8 Hz up to 10 MHz ACCURACY OF SYNTHESIZER: base accuracy depends on system accuracy 1/8 Hz to 10 kHz Phase syncron with pulse output P_SEC 10 kHz to 10 MHz frequency deviation < 0.0047 Hz SYNTHESIZER OUTPUTS: F_SYNTH: TTL level F_SYNTH_OD: open drain...
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Page 37: Oscillator Specifications
POWER REQUIREMENTS: 5V ± 5%, max. @1100mA (see oscilatorspecifikations) PHYSICAL DIMENSION: 19" module in a closed 112mm high x 102mm wide closed aluminium case FRONT PANEL: 3U / 21HP (128mm high x 107mm wide), Aluminium REAR EDGE CONNECTOR: according to DIN 41612, type C 64, rows a+c (male) RF CONNECTOR: coaxial BNC AMBIENT TEMPERATURE: 0 ... -
Page 38: Technical Specifications Gps167 Antenna
Technical Specifications GPS167 Antenna ANTENNA: dielectrical patch antenna, 25 x 25mm receive frequency: 1575.42 MHz bandwidth: 9 MHz CONVERTER: local oscillator to converter frequency: 10 MHz first IF frequency: 35.4 MHz POWER REQUIREMENTS: 12V ... 18V, @ 100mA (provided via antenna cable) CONNECTOR: coax type N, female AMBIENT... -
Page 39: 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) charac- ter. 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 40: Format Of The Meinberg Capture String
Format of the Meinberg Capture String The Meinberg Capture String is a sequence of 31 ASCII characters terminated by a CR/ LF (Carriage Return/Line Feed) combination. The format is: CHx_tt.mm.jj_hh:mm:ss.fffffff<CR><LF> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string. -
Page 41: Format Of The Sat Time String
Format of the SAT Time String The SAT Time String is a sequence of 29 ASCII characters starting with the STX (start-of-text) character and ending with the ETX (end-of-text) character. The format <STX>dd.mm.yy/w/hh:mm:ssxxxxuv<ETX> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string. -
Page 42: Format Of The Uni Erlangen String (Ntp)
Format of the Uni Erlangen String (NTP) The time string Uni Erlangen (NTP) of a GPS clock 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;... - Page 43 leap second insertion ‘L’ leap second is actually inserted (active only in 60th sec.) ‘ ‘ (space, 20h) no leap second is inserted bbb.bbbb latitude of receiver position in degrees leading signs are replaced by a space character (20h) latitude, the following characters are possible: ‘N’...
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Page 44: Format Of The Nmea 0183 String (Rmc)
Format of the NMEA 0183 String (RMC) The NMEA String is a sequence of 65 ASCII characters starting with the ‘$’ character and ending with the characters CR (carriage return) and LF (line-feed). The format is: $GPRMC,hhmmss.ss,A,bbbb.bb,n,lllll.ll,e,0.0,0.0,ddmmyy,0.0,a*hh<CR><LF> The letters printed in italics are replaced by ASCII numbers or letters whereas the other characters are part of the time string. -
Page 45: Format Of The Abb Spa Time String
Format of the ABB SPA Time String The ABB SPA Time String is a sequence of 32 ASCII characters starting with the characters ">900WD" and ending with the <CR> (Carriage Return) character. The format is: >900WD:yy-mm-tt_hh.mm;ss.fff:cc<CR> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string. -
Page 46: Format Of The Computime Time String
Format of the Computime Time String The Computime time string is a sequence of 24 ASCII characters starting with the T character and ending with the LF (line feed, ASCII Code 0Ah) character. The format T:yy:mm:dd:ww:hh:mm:ss<CR><LF> The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the time string. -
Page 47: Timecode (Optional)
Timecode (optional) Principle of Operation The Board GPS167 has been designed for the generation of IRIG, AFNOR and IEEE1344 standard time codes. Apart from the digitally generated amplitude-modula- ted code, it also provides the unmodulated DC-Level shift code. The modulated sine wave carrier and the board´s internal time pattern are derived from the radio clock´s disciplined oscillator. -
Page 48: Irig Standard Format
IRIG Standard Format... -
Page 49: Afnor Standard Format
AFNOR Standard Format... -
Page 50: Assignment Of Cf Segment In Ieee1344 Mode
Assignment of CF Segment in IEEE1344 mode Bit No. Designation Description Position Identifier P5 Year BCD encoded 1 Year BCD encoded 2 low nibble of BCD encoded year Year BCD encoded 4 Year BCD encoded 8 empty, always zero Year BCD encoded 10 Year BCD encoded 20 high nibble of BCD encoded year Year BCD encoded 40... -
Page 51: Generated Timecodes
Generated Timecodes Besides the amplitude modulated sine wave signal, the board also provides unmodula- ted DC-Level Shift TTL output in parallel. Thus six time codes are available. a) B002: 100pps, PWM DC signal, no carrier BCD time of year b) B122: 100pps, AM sine wave signal, 1 kHz carrier frequency BCD time of year c) B003:... -
Page 52: Selection Of Generated Time Code
Selection of Generated Time Code The time code to be generated can be selected by Menu Setup IRIG Settings or the GPS Monitorprogram. DC-Level Shift Codes (PWM signal) B00x and modulated sine wave carrier B12x are always generated simultaneously. Both signals are provi- ded at the VG64-Connector, i.e. -
Page 53: Technical Data
Technical Data Outputs: Unbalanced AM sine wave signal: (MARK) / 1V (SPACE) into 50Ω PWM signal: TTL, high and low active... -
Page 54: Signal Description Gps167 V7.X
Signal Description GPS167 V7.x Name Function 32a+c Ground VCC in (+5V) 1a+c +5V supply VCC in (+12V) 2a+c +12V supply VCC in (+5V) 3a+c +5 V supply (TCXO / OCXO) P_SEC out Pulse when second changes, TTL level, active high, length 200 msec P_MIN out Pulse when minute changes, TTL level, active high, length 200 msec... -
Page 55: Rear Connector Pin Assignments Gps167 V7.X
Rear Connector Pin Assignments GPS167 V7.x VCC in (+5V) VCC in (+5V) VCC in (+12V) VCC in (+12V) VDD in (TCXO/OCXO) VDD in (TCXO/OCXO) (reserved, FreqAdjust out) P_SEC out (reserved, 10 MHz in) P_MIN out /RESET in/out 100 kHz out ProgPulse0 out 1 MHz out ProgPulse1 out... -
Page 56: Menu Quick Reference Gps167
Menu Quick Reference GPS167... -
Page 57: Technical Appendix
Technical appendix... -
Page 58: Technical Specifications Gps167Bgt
Technical Specifications GPS167BGT HOUSING: Metal 19"Modular chassis, Schroff EUROPAC lab HF Front panel: 3U/84HP (128 mm high / 426 mm wide) PROTECTION RATING: IP20 PHYSICAL DIMENSIONS: 483 mm wide x 132 mm high x 260 mm deep Rear Panel Connectors Name Type Signal... -
Page 59: Rear Panel View Gps167Bgt
Rear panel view GPS167BGT... -
Page 60: Sub-D Connector Assignments
SUB-D Connector Assignments Connector Assignments Error Relais (Time Sync) -
Page 61: Technical Specifications Power Supply Unit Puls Ap336.505
Technical Specifications Power Supply Unit PULS AP336.505 INPUT VOLTAGE: 105 ... 300V DC, max. 0.7A 85 ... 265V AC, 47... 63Hz, max. 1.5A FUSE: electronic OUTPUT VOLTAGES: 5.15V / 2A +12V / 1A -12V / 1A Minimum load of the 5V output when control accuracy of the 12V outputs should be smaller than 4%: 100mA TOTAL SAVE LOAD:... - Page 62 GP S 1 6 7 _ BGT - E - 0 5 0 5 0 6...
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