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Summary of Contents for Meinberg GEN170TGP
- Page 1 Technical Information Operating Instructions GEN170TGP...
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Page 2: Impressum
Impressum Meinberg Funkuhren GmbH & Co. KG Lange Wand 9 D-31812 Bad Pyrmont Telefon: +49 (0) 52 81 / 9309-0 Telefax: +49 (0) 52 81 / 9309-30 Internet: http://www.meinberg.de Email: info@meinberg.de 17. November, 2008... -
Page 3: Table Of Contents
Index Impressum .................... 2 The Modular System GEN170TGP ............. 5 General Information about DCF77 ............6 GEN170 ....................7 GEN170 Overview ..............7 The GEN170 Front Panel Layout ............8 FAIL LED and LOCK LED ............8 LC Display .................. 8 MENU Key................. - Page 4 Format of the Meinberg Standard Time String ......15 Time code ................... 16 Principle of Operation ............... 16 Block Diagram Time code ............16 IRIG Standard Format ............... 17 AFNOR Standard Format ............18 Assignment of CF Segment in IEEE1344 mode ....... 19 Generated Time codes ...............
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Page 5: The Modular System Gen170Tgp
The Modular System GEN170TGP GEN170TGP is a set of equipment composed of a DCF77 generator GEN170 and a DCF77 simulator SIM77PV4 together with a power supply, all installed in a metal desktop case and ready to operate. The interfaces and signals provided by GEN170 and SIM77PV4 are accessible via connectors in the rear panel of the case. -
Page 6: General Information About Dcf77
General Information about DCF77 The long wave transmitter DCF77 is installed in Mainflingen near Frankfurt/Germany and transmits the reference time of the Federal Republic of Germany. This is either the Central European Time (Mitteleuropäische Zeit, MEZ) or the Central European Summer Time (Mitteleuropäische Sommerzeit, MESZ). -
Page 7: Gen170
GEN170 GEN170 Overview FAIL LOCK The time code generator GEN170 has been designed to generate all signals required to control or simulate a DCF77 compatible long wave transmitter, or provide the reference time for an NTP server: o 77.5 kHz carrier frequency MENU NEXT o second marks to modulate the carrier's... -
Page 8: The Gen170 Front Panel Layout
The GEN170 Front Panel Layout FAIL LED and LOCK LED The red LED labeled FAIL is turned on after power-up and stays on until the current time has either been acknowledged via the ACK key in the front panel, or the time has been set via the serial interface. -
Page 9: The Menus In Detail
The Menus in Detail Root Menu The root menu is shown when the receiver has completed initialization after power- up. During power-down the current date and time are kept in a battery buffered on-board real time clock (RTC), so after power-up the initial calendar date and time should be fairly correct. -
Page 10: Menu Setup
Menu SETUP From this menu, one of the configurable parameters can be selected using the NEXT key. When the CLR/ACK key is pressed, a submenu is displayed which lets the user view or modify the selected parameter. In each of these submenus the NEXT key lets the cursor move to the next digit or letter to be edited whereas the INC key increments the digit or letter under the cursor. -
Page 11: 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 12: Setup Serial Port Parm
19200 baud, 8N1 COM1: 9600 baud, 8N1 SETUP SER. STRING TYPE This menu lets the user select the time string formats sent via the serial ports. As of this writing the GEN170 supports sending the Meinberg standard string only on both ports. -
Page 13: Setup Serial Output
This menu lets the user select the serial ports' mode of operation. COM0 transmits the current date and time using Meinberg's standard string. This string can be sent automatically once per second, once per minute or on request by ASCII '?' only. -
Page 14: Init User Parms
INIT USER PARMS This menu lets the user reset all configurable parameters to default values. Before initialization is done, the user must press CLR/ACK once more to acknowledge. 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. -
Page 15: Format Of The Meinberg Standard Time String
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 16: Time Code
Time code Principle of Operation The Board GEN170 has been designed for the generation of IRIG, AFNOR and IEEE1344 standard time codes. Apart from the digitally generated amplitude-modulated 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 17: Irig Standard Format
IRIG Standard Format... -
Page 18: Afnor Standard Format
AFNOR Standard Format... -
Page 19: 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 20: Generated Time Codes
Generated Time codes Besides the amplitude modulated sine wave signal, the board also provides unmodulated 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 21: Selection Of Generated Time Code
Selection of Generated Time Code The time code to be generated can be selected by Menu Setup TIMECODE OUT. DC-Level Shift Codes (PWM signal) B00x and modulated sine wave carrier B12x are always generated simultaneously. Both signals are provided at the VG64-Connector, i.e. -
Page 22: Technical Specifications Gen170
Technical Specifications GEN170 LC DISPLAY 4x16 character, menu selectable by push buttons INPUT SIGNALS 1 pps in pulse per second (TTL level, leading edge) 10 MHz in reference frequency (Sine wave) (only if configured for external reference) amplitude V input impedance: 50 Ohm OUTPUT SIGNALS 10 MHz... - Page 23 REAR EDGE CONNECTOR according to DIN 41612, type C 64, rows a+c (male) AMBIENT TEMPERATURE : 0 ... 60° C HUMIDITY 85% max.
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Page 24: Signal Description Gen170
Signal Description GEN170 Name Function 32a+c Ground VCC in (+5V) 1a+c +5V supply Vosc in (+5V) 2a+c +5V supply 10 MHz out 10 MHz frequency output (TTL level) 2.25MHz out 2,25MHz frequency output (TTL level) 77.5 kHz out 77.5 kHz frequency output (TTL level) DCF out AM time marks (TTL level, active high) PZF_CLK out... -
Page 25: Rear Connector Pin Assignments Gen170
Rear Connector Pin Assignments GEN170 VCC in (+5V) VCC in (+5V) Vosc in (+5V) Vosc in (+5V) 10 MHz in IRIG_AC out PZF out IRIG_DC out PZF_WIN out DCF out /RESET in/out PZF_CLK out 77.5 kHz out 10MHz out TTL_IN0 in TTL_IN1 in P_SEC out TTL_IN2 in... -
Page 26: Dcf77-Simulator
SIM77PV4 to modulate the on board generated 77.5kHz sine wave carrier according to the DCF77 transmitter. This DCF77 compatible signal is accessible via four DC insulated outputs which can be connected to all Meinberg AM radio clocks directly. The signal can be distributed by additional antenna amplifiers/distributors. Internal... -
Page 27: Technical Specifications Sim77Pv4
Technical Specifications SIM77PV4 Power Req.: +5V / @70mA Input: MOD in (DCF77 time marks) and 1MHz in, TTL level optional: 10MHz in (solder bridges on the board have to be set correspondingly) Outputs: 4x amplitude modulated, DC insulated carrier (77.5 kHz) Output level: approx. -
Page 28: Rear Connector Pin Assignments Sim77Pv4
Rear Connector Pin Assignments SIM77PV4 VCC in (+5V) VCC in (+5V) MOD in PZF in +SIM_OUT1 1MHz in 10MHz in -SIM_OUT1 +SIM_OUT2 -SIM_OUT2 +SIM_OUT3 -SIM_OUT3 7.75MHz in +SIM_OUT4 -SIM_OUT4 male connector according to DIN 41612, type C 64, rows a + c... -
Page 29: Gen170Tgp Rear View
GEN170TGP Rear view Made in Germany Assignments of the 25 pin Connector...
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