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ECHNICAL

ATA

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System 6844(RC) - V03.00

hopf

Elektronik GmbH

Nottebohmstr. 41

• D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]

GPS Data

Receiver type:

12 channel phase tracking receiver, C/A code

Evaluation:

L1 frequency (1575.42MHz)

Sensitivity

Acquisition:

Tracking:

-143dBm
-156dBm

Synchronization time:



Cold start: 5min - 30min

(first initialization without position input)



Warm start: < 1min

(power down < 3 days)

Antenna connection:



Via BNC connector, female



For active antennas, U

= 5V DC



Antenna power fed via Board 6844(RC) BNC connector

Backup Clock

Maintenance free buffering

at least 3 days / typ. 7 days / max. 10 days

Time offset (accuracy)

< ± 2msec

Crystal accuracy (32.768kHz)

± 25ppm at +10°C to +50°C

Board 6844

MTBF in [h]

MTBF in Years [a]

Complete Board 6844(RC)
incl. GPS receiver

77,767

8.9

11.3.1 Internal System Accuracy

General Character

Aging (system quartz)

< ± 5 *10-6 / year

GPS-System

Internal System Accuracy (System-PPS)

(1)

(absolute to UTC



radiated from GPS)

Accuracy

(2)

< ± 150ns

Jitter

(2)

< ± 3 * 10

-8

Freewheel stability

(2, 3)

< ± 1 * 10

-7

Sub-Master System

Synchronisation source: DCF77 pulse

(

hopf

GPS System 6844RC)

Internal System Accuracy (System-PPS)

(1)

Accuracy

(2, 4)

< ± 80ns

Jitter

(2)

< ± 3 * 10

-8

Free wheel stability

(2, 3)

< ± 1 * 10

-7

Synchronisation Source: DCF77 pulse

(

hopf

DCF77 System 6855)

Internal System Accuracy (System-PPS)

(1)

Accuracy

(2, 4)

< ± 1msec

Jitter

(2)

< ± 10 * 10

-6

Freewheel stability

(2, 3)

< ± 2 * 10

-6

Содержание 6844

Страница 1: ...echnical Manual System 6844 and 6844RC GPS and Sub Master For Housing Versions 1U 3U Table Wall ENGLISH Version 03 00 17 12 2012 _____________________________________________________________ Valid for...

Страница 2: ...2 157 System 6844 RC V03 00 hopf Elektronik GmbH Nottebohmstr 41 D 58511 L denscheid Tel 49 0 2351 9386 86 Fax 49 0 2351 9386 93 Internet http www hopf com E Mail info hopf com...

Страница 3: ...ICATE THE FUNCTIONAL CORRELATION BETWEEN DEVICE AND TECHNICAL MANUAL THE DIGITS AFTER THE POINT IN THE VERSION NUMBER INDICATE CORRECTIONS IN THE FIRMWARE MANUAL THAT ARE OF NO SIGNIFICANCE FOR THE FU...

Страница 4: ...oltage supply indicated on the identification label The device should only be operated by qualified staff or employees who have received specific instruction If a device must be opened for repair this...

Страница 5: ...2 Slot for a Function Board 25 1 3 Quick Install 26 2 System 6844 RC Synchronization 27 2 1 Summary Synchronization Source Settings 27 2 1 1 Synchronisation via GPS 27 2 1 2 Synchronization via Serial...

Страница 6: ...Keypad Functions 43 4 4 1 Keypad Layout 43 4 4 2 Key Assignment 43 4 4 3 Keypad Inputs Main Menu Activation 44 4 5 Initialization 44 5 System Parameterization and Operation 45 5 1 Menu Structure 45 5...

Страница 7: ...2 1 Display and Set DCF77 ADD Configuration 76 5 5 4 2 2 Display and Set DCF77 ADD TimeOFF 76 5 5 5 IRIG B Digital Output 77 5 5 5 1 IRIG Time Code Structure and Timing Diagram 77 5 5 5 1 1 IRIG Bxxx...

Страница 8: ...3 6 T String 100 6 3 6 1 Specified Settings 100 6 3 6 2 Structure 100 6 3 6 3 Status 100 6 3 6 4 Example 100 6 3 7 IBM Sysplex Timer Model 1 2 101 6 3 7 1 Specified Settings 101 6 3 7 2 Structure 101...

Страница 9: ...4 Single Pulse 130 7 1 6 RC Pulse IMP 1 4 One Time Variable Pulse per Weekday 132 7 2 LAN Management Board 6844MNG for 3U Table Wall Systems 133 7 3 LAN Management Module 6844MNG for 1U System 133 8...

Страница 10: ...angeover 145 9 2 10 Output and Function Errors of individual Function Boards 145 9 3 Support from the hopf Company 145 10 Maintenance Care 146 10 1 General Guidelines for Cleaning 146 10 2 Cleaning th...

Страница 11: ...l strings or pulses to the sophisticated NTP time server with LAN management and monitoring as well as a va riety of other complex applications A range of function boards are available for the respect...

Страница 12: ...t with mains switch 1U only compliant with IEC EN 60320 1 C14 and EMI line filter Prepared for retrofitting of Function Boards by the customer Up to two independent NTP time servers can be implemented...

Страница 13: ...te activation of RC functionality is not possible System 6844RC is designed for use in conjunction with management systems The System can be configured via serial interface and monitored in a network...

Страница 14: ...ional optional optional optional LAN Management Board Module suitable for integration 6844RC only Optional slot prepared for LAN Man agement Board separate remote interface 6844RC only 3 3 3 3 Standar...

Страница 15: ...rack 3U 84HP The base system consists of the following 1 1 resp 19 module rack 3U Supply voltage 115 230V AC other voltages available Voltage input with IEC EN 60320 1 C14 connection and EMI line filt...

Страница 16: ...Elektronik GmbH Nottebohmstr 41 D 58511 L denscheid Tel 49 0 2351 9386 86 Fax 49 0 2351 9386 93 Internet http www hopf com E Mail info hopf com System front side 3U 42HP System rear side plug in side...

Страница 17: ...9 0 2351 9386 86 Fax 49 0 2351 9386 93 Internet http www hopf com E Mail info hopf com 1 2 2 1 19 Inch Rack 3U 42HP and 3U 84HP As standard the System is assembled in a standard 19 housing 3U 42HP for...

Страница 18: ...Board 6844 RC and the Function Boards are connected The System Bus is used to Distribute time information Communicate between Control Board 6844 RC and Function Boards Transmit the regulated second p...

Страница 19: ...84HP Slim Line Wide ranging power supply unit from 100 240V AC 40VA 47 63Hz Other input voltages available Voltage feed with power switch with connections in accordance with IEC EN60320 C14 including...

Страница 20: ...9 06 1U 1HE 1 2 3 2 Display The display consists of a two line LCD Display Liquid Crystal Display with 2x16 characters and back lighting The lighting is activated by pressing a key and switches off au...

Страница 21: ...spectively Sync green ON The system is currently synchronized by the installed Sync Source or the SyncOFF Timer is active 1 2 3 5 System Bus 6000 The System Bus consisting of the Bus Board with VG led...

Страница 22: ...these slots Slots that have been prepared for special functions are identified with the letters A and B 1 2 3 7 Temperature controlled Forced Ventilation The clock system has two temperature controlle...

Страница 23: ...49 0 2351 9386 93 Internet http www hopf com E Mail info hopf com 1 2 4 System Design 6844 RC in 19 inch Table Top Housing 3U 42HP In essence the System consists of the same components as the 3U Syst...

Страница 24: ...0 2351 9386 93 Internet http www hopf com E Mail info hopf com 1 2 4 1 19 Inch Table Top Housing 3U 42HP 1 2 5 System Design 6844 RC in 19 inch Wall Housing 3U 42HP In essence the System consists of t...

Страница 25: ...L denscheid Tel 49 0 2351 9386 86 Fax 49 0 2351 9386 93 Internet http www hopf com E Mail info hopf com 1 2 5 1 19 Inch Wall Housing 3U 42HP 1 2 5 2 Slot for a Function Board In System 6844 RC due to...

Страница 26: ...ly Input changeover point of time S D Input changeover point of time D S Wait for minute change Trigger software reset Check for correct acquisition of the difference time using the SHOW function GPS...

Страница 27: ...CHANGEOVER TIME S D Standard time Daylight saving time 1 04 CHANGEOVER TIME D S Daylight saving time Standard time 1 31 SYSTEM Byte Synchronizations Mode Bit2 Bit0 000 001 010 011 100 Always required...

Страница 28: ...ster Slave string is set then the serial parameters for COM1 are set automatically All other settings of inter face COM1 are ignored 2 1 3 Synchronisation via Serial Interface with High Accurate PPS I...

Страница 29: ...na contains this required information for the CET time zones UTC 1h As a result when configuring it is necessary to differentiate between system operation in the CET time zone and system operation as...

Страница 30: ...9 inch Rack 3U 42HP and 3U 84HP The following steps are to be carried out Place the rack in the control panel and fix to the mounting brackets on the front side of the rack using 4 screws The ventilat...

Страница 31: ...ttention should be paid to the following when connecting the power supply Correct voltage type AC or DC Voltage level The power feed is via an input connector with EMI line filter compliant with IEC E...

Страница 32: ...fications All AC power supply specifications are described in Chapter 11 Technical Data 3 1 5 3 Fusing Pay attention to the correct fusing of the power supply when connecting the System 6844 RC The co...

Страница 33: ...he version different synchronisation signals can be connected to the System 6844 RC 3 1 7 1 GPS Antenna Equipment The GPS antenna equipment coaxial cable is connected to the BNC connector marked An te...

Страница 34: ...422 low active 23 RxD RS422 high active 24 n c 25 n c SUB D female Connector 9 pole COM1 Pin Assignment 1 GND 2 TxD RS232c 3 RxD RS232c 4 RxD RS422 high active 5 RxD RS422 low active 6 n c 7 n c 8 TxD...

Страница 35: ...re is sufficient space between the connection side of the rack and the control panel to allow for the connection of cables to the System 3 2 2 Earthing The System 6844 RC 1U Slim Line is usually earth...

Страница 36: ...and electrical shock protection is in place The earth wire is connected All supply cables are correctly sized and fused All output cables are suitably sized or specially fused for the max output curr...

Страница 37: ...upply specifications are described in Chapter 11 2 Specific Technical Data for 1U 3 2 4 2 Fusing Pay attention to the correct fusing of the power supply when connecting the System 6844 RC 1U Slim Line...

Страница 38: ...the in stallation of the antenna equipment such as cable lengths and types can be found in the manual Antenna Equipment GPS 3 2 5 2 Serial String The synchronisation string is always connected to int...

Страница 39: ...on SUB D male con nector 9 pole E r r o rR e l a y s Pin Assignment 1 n c 2 PWR REL2 Common contact c 3 PWR REL2 Normally open contact no 4 n c 5 GND 6 PWR REL2 Normally closed contact nc 7 SYNC REL1...

Страница 40: ...ds Execute all parameter settings via the SET menu and also via the INI and S CLOCK menus when necessary Check for successful synchronization of the System 6844 RC Commission the Function Boards where...

Страница 41: ...longer time without voltage condition and loss of backup clock information L O C 0 0 0 0 0 5 0 0 2 0 0 0 E After a voltage failure of less than 3 days the display starts up with the in ternal back up...

Страница 42: ...rnal status of the clock system The clock system has no valid time information C Clock system is running with internal quartz basis C Crystal r Clock system is synchronized via synchronisation source...

Страница 43: ...yer Key forward Key backward Input layer leading sign for numerical value 0 9 Input of the digits N E S W Input keys Y Call up menu group selection frame BR BREAK Aborts all key controls Quits the inp...

Страница 44: ...e are indicated in the specification at the beginning of each sub function If such a function is called up by mistake this can be exited by pressing the BR key 4 5 Initialization The base initializati...

Страница 45: ...er time 1 04 CHANGE_OVER DATE changeover standard time summer time 1 05 POSITION Sync Mode GPS only 1 06 SYNCOFF 1 06 COM0 SERIALPARAMETER 1 07 COM0 MODE 1 1 08 COM0 MODE 2 1 09 COM0 MODE 3 only if ne...

Страница 46: ...19 LAN1 CONTROL BYTE 2 20 LAN2 IP ADR 2 board 7271 7272 not in system no function 2 21 LAN2 GATEWAY 2 22 LAN2 NETMASK 2 23 LAN2 CONTROL BYTE 2 24 LAN MNG IP ADR only by 6844RC with LAN MNG activated...

Страница 47: ...All data entered via the keyboard is checked for plausibility and then stored fail safe in an EEPROM Exception The parameters of all NTP LAN Boards available in the System and the Master Clock Board...

Страница 48: ...T I M E 0 1 0 0 Difference Time Europe CET The operational sign indicates the direction in which the local time differs from the world time Corresponds to East of the Null Meridian Greenwich Correspon...

Страница 49: ...such a way that the changeover can take place at any point of time For control purposes the exact date for the current year is indicated in the SHOW functions If the DST changeover is not to be activ...

Страница 50: ...1 00 01 1 hour 5 2 5 Input Position GPS only The geographical position of the equipment is entered with this function This function is helpful during the first commissioning and shortens the first syn...

Страница 51: ...synchronizes with this position in the Position fix mode there may be a time leap under sync status R if in the meantime the GPS receiver picks up enough satellites to calculate its correct position 5...

Страница 52: ...2 7 1 Selection Frames for Parameters of Serial Interface COM0 Setting serial Parameter Selection frame S E T C O M 0 S E R I A L P A R A M E T E R Y N The parameters for Baud rate Word length Parity...

Страница 53: ...rmly adjusted to 9600baud 8 data bit no parity an stop bit 5 2 8 LAN Board Parameters Option Further information and an explanation of the parameters are available in the respective LAN Board descript...

Страница 54: ...ard Module System 6844RC only The menu is only visible on System 6844RC when the LAN Management Board Module is activated The LAN Management Board Module is activated in the INI Menu Setting the IP ad...

Страница 55: ...equency Board can be defined with TimeON and TimeOFF The TimeON timer defines how long the System has to run in synchronization status R be fore the output is enabled This setting can be used to ensur...

Страница 56: ...meaning of the individual bits of the Mode configuration B6 B5 Mode 3 DCF77 0 0 Mode 3 disabled 0 1 DCF77 pulse time base UTC 1 0 Not assigned currently DCF77 pulse time base UTC 1 1 Not assigned cur...

Страница 57: ...ame S E T D I S P L A Y T I M E Y N Input frame L O C A L 0 U T C 1 D I S P L A Y T I M E 0 The following selections are available Display Input Local time 0 UTC 1 5 2 12 Selection of the Language for...

Страница 58: ...t to 0 for compatibility reasons 5 2 13 1 Synchronization Mode Sync Mode B2 B1 B0 Sync Source 0 0 0 GPS Master System synchronization via GPS 0 0 1 Serial Interface COM1 Sub Master Slave Synchronizati...

Страница 59: ...e keyword is entered correctly then the display changes to the selected menu The key word protection is then deactivated until the selected menu has been exited The keyword protection is automatically...

Страница 60: ...condition the System remains fully functional as before The display reverts back to the standard frame automatically after four minutes or by pressing the BR key 5 3 SHOW Menu Display of the System 68...

Страница 61: ...he position is not calculated in this case Selection frame S H O W S A T E L L I T E S Y N If values are available in the System then the display frame may appear as follows exam ple Display frame 1 V...

Страница 62: ...d under the same number Signal Noise Ratio The number after the colon indicates the signal noise ratio as a relative value This should vary between 0 and max 110 After the first installation it can ta...

Страница 63: ...able to connect to a logged on LAN Management Board Module Error Bit 5 1 Keypad blocked at least 4x the wrong keyword entry A keyword was set for the keyboard and a wrong entry was made four times in...

Страница 64: ...r Plausibility of the strings structure Plausibility of the time information Existence of a VISIBLE error see menu SHOW Satellites All criteria of the string are met the quality counter is raised at l...

Страница 65: ...77 time telegram is controlled once per second for Plausibility of the strings structure Plausibility of the time information Plausibility of pulse length o DCF77 pulse low 100msec 20msec o DCF77 puls...

Страница 66: ...een local standard time time zone and UTC time Selection frame S H O W D I F F T I M E T I M E Z O N E Y N After entering Y the following image is displayed e g Display frame D I F F T I M E 0 1 0 0 O...

Страница 67: ...this display frame Also displayed is whether the SyncOFF timer is enabled and if so the remaining time until the timer expires and thus until the System synchronization status changes if no new syn c...

Страница 68: ...D E B Y T E _ 1 Y N Display frame M o d B _ 1 7 6 5 4 3 2 1 0 C O M 0 1 1 0 0 0 0 0 0 Mode Byte 2 Displays Selection frame S H O W C O M 0 M O D E B Y T E _ 2 Y N Display frame M o d B _ 2 7 6 5 4 3 2...

Страница 69: ...ayed on this display frame IP Address Displays Selection frame S H O W L A N _ 1 I P A D R Y N Display frame L A N _ 1 I P A D R 1 9 2 1 6 8 2 0 2 2 1 0 Gateway Address Displays Selection frame S H O...

Страница 70: ...ration of the LAN Management Board IP Address Displays Selection frame S H O W L A N _ M N G I P A D R Y N Display frame L A N _ M N G I P A D R 1 9 2 1 6 8 2 0 2 2 1 1 Gateway Address Displays Select...

Страница 71: ...1 2 3 5 0 H z Frequency Output Delay Display Selection frame S H O W F R E Q U E N C Y T i m e O N O F F Y N Display frame T i m e O N O F F m i n 0 0 0 0 0 2 5 3 10 Status and Pulse Output This disp...

Страница 72: ...at least one ERROR Bit is active 1 active summary error message is not available no ERROR Bit is set Output OUT 3 SyncOFF Timer not active 0 inactive SyncOFF Time is running active or lapsed 1 active...

Страница 73: ...Pressing the BR key returns the user to the standard display 5 5 1 Display the Firmware Version of Board 6844 RC This function is used to display the current firmware version of Board 6844 RC Selecti...

Страница 74: ...ated on the basis of the position entered If four or more satellites are received in Position fix mode then the evaluation switches automatically into 3D mode for this time period and calculates the e...

Страница 75: ...available as standard DCF77 SYS This DCF77 pulse is available to other Function Boards on the internal System Bus however the same DCF77 pulse is also used to produce DCF77 antenna simulation 77 5 kH...

Страница 76: ...on as a valid time is availa ble in the System 5 5 4 2 Signal DCF77 ADD Option In System 6844 RC there is an option to enable a second DCF77 pulse The following menu items only appear when signal DCF7...

Страница 77: ...the case of analog output the positive zero crossing of a sine wave carrier frequency 1000 Hz is modulated with the rising edge of the IRIG signal The modulation depth should be between 3 1 and 6 1 f...

Страница 78: ...me second of day control information 1 time control information 2 time 3 time second of day 4 time year second of day control information 5 time year control information 6 time year 7 time year second...

Страница 79: ...time zone time without summer time 1 0 UTC 1 1 Not assigned currently local time B5 Not assigned x Not assigned B4 IRIG Time Code Signal Output 0 Not inverted 1 Inverted B3 Not assigned x Not assigne...

Страница 80: ...tems only appear when the IRIG B 2 signal is ena bled Selection frame I R I G B 2 C O N F B Y T E Y N and Selection frame I R I G B 2 T i m e O F F Y N Configuration takes place in the same way as for...

Страница 81: ...t Function Boards without their own processor This function has no effect on the failsafe stored data 5 5 7 2 Hardware Reset Complete System This function triggers a hardware reset of the whole System...

Страница 82: ...trings are available Customer specific data strings are available on request The following settings can be made separately for each serial interface Alternatively System pulses can also be transmitted...

Страница 83: ...Possible settings are 8 for 8 data bits 7 for 7 data bits After entering the figure for the number of data bits the following message appears on the display Input frame B d 0 9 6 0 0 W 8 P _ The type...

Страница 84: ...n Key ENT Key 1 for SET menu Pressing Key N until the following menu appears Selection frame S E T C O M 0 M O D E B Y T E _ 1 Y N or Selection frame S E T C O M 0 M O D E B Y T E _ 2 Y N and in addit...

Страница 85: ...rol character at second change on Without control character at second change See also Chapter 6 2 Data String Transmission Points of Time This function is usually used in conjunction with the with sec...

Страница 86: ...ng 913 End new data string 000 End character ETX End character ETX 6 1 2 7 Mode Byte 1 Bit1 Bit0 Data String Transmission Point of Time Bit 1 Bit 0 Transmission Point of Time off off Transmit every se...

Страница 87: ...Master Slave String is always transmitted if a data string that is not assigned in the System is selected 6 1 2 10 Mode Byte 2 Bit6 Bit0 Pulse Selection The transmitted pulse is set with this Mode Byt...

Страница 88: ...of a data string can also be triggered by the user on enquiry by means of an ASCII character The following characters trigger the transmission of the standard string ASCII D for Time Date Local Time A...

Страница 89: ...me information of 2 second nd ETX STX time information of 1 second st control character at second change second forerun transmission delay OFF ON OFF TxD t sec 59 00 01 ETX STX time information minute...

Страница 90: ...on side The output of control characters CR and LF can be reversed with Mode Byte 1 on all data strings see chapter 6 1 2 5 Mode Byte 1 Bit 3 Reverse Control Characters CR and LF Possible string speci...

Страница 91: ...t to 1 in the day of the week 31 37 4 tens hour 30 32 5 unit hour 30 39 6 tens minute 30 35 7 unit minute 30 39 8 tens second 30 36 9 unit second 30 39 10 tens day 30 33 11 unit day 30 39 12 tens mont...

Страница 92: ...0010 time invalid summer no announcement 3 0011 time invalid summer announcement 4 0100 quartz winter no announcement 5 0101 quartz winter announcement 6 0110 quartz summer no announcement 7 0111 quar...

Страница 93: ...s 6 3 3 1 Specified Settings Automatic no Required no Blocked no 6 3 3 2 Structure Character No Meaning Hex Value 1 STX start of text 02 2 status internal clock status 30 39 41 46 3 day of the week 1...

Страница 94: ...0 no announcement hour x x x 1 announcement DST changeover x x 0 x standard time x x 1 x daylight saving time DST 0 0 x x time date invalid 0 1 x x crystal operation 1 0 x x radio operation 1 1 x x ra...

Страница 95: ...erence time local to UTC hour minute the day of the week status information announcement of DST changeover announcement of a leap second and the status of reception of the hopf Master Slave String sou...

Страница 96: ...39 16 difference time tens hour operational sign 30 31 38 39 17 difference time unit hour 30 39 18 difference time tens minutes 30 35 19 difference time unit minutes 30 39 20 LF line feed 0A 21 CR car...

Страница 97: ...me announcement no announcement 2 0010 quartz DST no announcement no announcement 3 0011 quartz DST announcement no announcement 4 0100 quartz standard time no announcement announcement 5 0101 quartz...

Страница 98: ...cified Settings Automatic no Required no Blocked no 6 3 5 2 Structure Character No Meaning Hex Value 1 STX start of text 02 2 D ASCII D 44 3 colon 3A 4 tens day 30 33 5 unit day 30 39 6 point 2E 7 ten...

Страница 99: ...lowing character no 28 no radio synchronisation after reset time invalid space radio synchronisation after reset clock in crystal operation character no 29 time from internal crystal in the clock spac...

Страница 100: ...Required no Blocked no 6 3 6 2 Structure Character No Meaning Hex Value 1 T ASCII T 54 2 colon 3A 3 tens year 30 39 4 unit year 30 39 5 colon 3A 6 tens month 30 31 7 unit month 30 39 8 colon 3A 9 tens...

Страница 101: ...ollowing parameters are activated after a reset automatically 9600 baud 8 data bit odd parity 1 stop bit sending on request without forerun and without control characters Required no Blocked no The se...

Страница 102: ...nchronisation status of the clock Possible values and their meaning are listed below question mark no radio controlled time _ space radio controlled time at hand A Hex 41 crystal operation for more th...

Страница 103: ...ader 02 2 hundreds current day of the year 30 33 3 tens current year 30 39 4 unit current year 30 39 5 colon 3A 6 tens hour 30 32 7 unit hour 30 39 8 colon 3A 9 tens minute 30 35 10 unit minute 30 39...

Страница 104: ...3 9 1 Specified Settings Automatic no Required no Blocked no 6 3 9 2 Structure Character No Meaning Hex Value 1 STX start of text 02 2 D ASCII D 44 3 colon 3A 4 tens day 30 33 5 unit day 30 39 6 point...

Страница 105: ...t time invalid space radio synchronisation after reset clock in crystal operation character no 29 time from internal crystal in the clock space time by radio reception character no 30 S daylight savin...

Страница 106: ...een and The hexa decimal values of the upper and lower 4 bits of the checksum are transferred into ASCII characters The binary values A F are transferred to the ASCII characters A F 41h 46h All inform...

Страница 107: ...ning Hex Value 1 string start 24 2 G 47 3 P 50 4 R 52 5 M 4D 6 C 43 7 comma as separation 2C 8 tens hour UTC time 30 32 9 unit hour 30 39 10 tens minute 30 35 11 unit minute 30 39 12 tens second 30 35...

Страница 108: ...ngth minute 30 39 39 0 01 th length minute 30 39 40 0 001 th length minute 30 39 41 0 0001 th length minute 30 39 42 comma as separation 2C 43 E respectively W 45 57 44 comma as separation 2C 45 comma...

Страница 109: ...14 point as separation 2E 15 tenth second 30 39 16 hundredth second 30 39 17 comma as separation 2C 18 A respectively V Status 41 56 19 comma as separation 2C 20 comma as separation 2C 21 comma as se...

Страница 110: ...t The clock is synchronous r or R Examples of data strings before during and after inserting a any leap second Leap second turn of the year 2009 2010 GPRMC 235958 00 A 5112 7003 N 00739 7908 E 311209...

Страница 111: ...fied Settings Automatic no Required no Blocked no 6 3 11 2 Structure Character No Meaning Hex Value 1 STX start of text 02 2 tens day 30 33 3 unit day 30 39 4 2E 5 tens month 30 31 6 unit month 30 39...

Страница 112: ...of the clock The characters mean the following Character no 21 24 MESZ Central European Summertime Daylight Saving Time MEZ Central European Time standard time winter time UTC Coordinated Universal T...

Страница 113: ...red into ASCII characters The binary values A F are transferred to the ASCII characters A F 41h 46h All information are transmitted as ASCII characters with 8 bit word length 1 stop bit and no parity...

Страница 114: ...C 30 39 14 comma as separation 2C 15 tens day UTC 30 33 16 unit day UTC 30 39 17 comma as separation 2C 18 tens month UTC 30 31 19 unit month UTC 30 39 20 comma as separation 2C 21 thousands digit yea...

Страница 115: ...10000 25 10 2009 01 00 68 cr lf GPZDA 010001 25 10 2009 01 00 69 cr lf GPZDA 010002 25 10 2009 01 00 6A cr lf Examples of data strings before during and after inserting of any leap second Leap second...

Страница 116: ...ty Output every second Control characters standard direct without delay Time basis and second forerun as required Transmission time every second CR LF Blocked no 6 3 13 2 Structure Character No Meanin...

Страница 117: ...Time Accuracy in the GPS2000 Data String Hex value ASCII value Description Meaning details of accuracy 3F question mark Error greater than 1 msec 23 double dagger Error greater than 100 sec 2A star Er...

Страница 118: ...ol character at second change on second forerun on transmission delay on Mode byte 3 address 254 FE Required baud rate 9600 Baud word length 8 bit stop bit 1 parity even transmission point every minut...

Страница 119: ...Flag 00 17 80 97 17 Days 1 31 01 1B 18 Months 1 12 01 0C 19 Years 00 99 00 63 20 Checksum sum of fields 5 to 19 mod 256 00 FF 21 End flag 16 MSB of minute 1 clock is not synchronous time invalid or qu...

Страница 120: ...7 B6 B5 B4 B3 B2 B1 B0 DEC HEX Note 0 0 0 0 0 0 0 0 0 00 Initialization deactivated 0 0 0 0 0 0 0 1 1 01 0 0 0 0 0 0 1 0 2 02 0 0 0 0 0 0 1 1 3 03 0 0 0 0 1 1 1 1 15 0F 0 0 0 1 0 0 0 0 16 10 0 0 0 1 0...

Страница 121: ...in stead of the checksum The putout milliseconds state the calculated transmission time of the last character of the string This data string requires the configuration of Mode Byte 3 6 3 15 1 Specifi...

Страница 122: ...4 0 ASCII character 0 30 5 W ASCII character W 57 6 D ASCII character D 54 7 colon 3A 8 tens year 30 39 9 unit year 30 39 10 minus 2D 11 tens month 30 31 12 unit month 30 39 13 minus 2D 14 tens day 3...

Страница 123: ...57 6 T ASCII character T 54 7 colon 3A 8 tens second 30 36 9 unit second 30 39 10 dot 2E 11 1 10 second 30 39 12 1 100 second 30 39 13 1 1000 second 30 39 14 colon 3A 15 checksum high nibble 30 3F 58...

Страница 124: ...bit of the synchronisation signal falls ex actly on the 2 nd second of every minute 6 3 16 1 Specified Settings Automatic no Required baud rate 1200 baud word length 8 bit stop bit 2 parity even Block...

Страница 125: ...ap Second 0 no leap second 1 leap second inserted B1 Reception time 0 reception not disturbed for more than 8h 1 reception disturbed for more than 8h B2 Reception 0 reception 1 reception disturbed B4...

Страница 126: ...rface can also be integrated into the System so that both interfaces COM0 and COM1 are exclusively available for customer applications Additional Configuration Channels In addition to the keyboard Sys...

Страница 127: ...Remote Software hmc The RC Pulses consist of two elements 1 The logical signal definition IMP 1 4 2 The internal signal outputs in TTL level RC output 1 4 on the VG ledge of the con trol board 6844RC...

Страница 128: ...ernal connections for these outputs Should these outputs be needed the implementation or its upgrading prior to shipment has to be processed by hopf A later upgrade cannot be done by the customer Any...

Страница 129: ...4 Time Status In this setting the internal synchronisation status is emitted at IMP 1 4 The signal output can be inverted Imp 1 4 Sync Status active radio synchronous R r inactive not radio synchrono...

Страница 130: ...gth can be selected in the range 1 65 500 msec The signal output can be inverted 7 1 5 RC Pulses IMP 1 4 Single Pulse This mode generates a single pulse per time and date or cyclic pulses at a variabl...

Страница 131: ...a certain time and date range The pulse lengths can be adjusted in the range of 1 65 500 msec The signal output can be inverted Examples Single variable pulse per time date hour minute second day mon...

Страница 132: ...e second at the appropriate time with the adjusted pulse length Individual values to disable the pulse width for the activation of variable pulses according to the desired pulse output have to be deac...

Страница 133: ...ol Board 6844RC The LAN Management Board subsequently can only be installed in a slot in the System prepared for this purpose 6844MNG prepared slot 7 3 LAN Management Module 6844MNG for 1U System The...

Страница 134: ...nction Boards do not support hot plug capability If it is necessary to exchange a board the System must be switched off first Otherwise the System or Function Board could be damaged Power Supply All F...

Страница 135: ...s can pick up the information available on the System Bus PPS pulse DCF77 pulse 1 Hz and transmit this in a hard ware format specific to the Board 8 3 Function Boards Summary In principle all the Func...

Страница 136: ...you require a function that is not covered by the Function Boards listed please ask us 8 4 Exchanging a Function Board To exchange a Function Board for an identical board model whilst retaining all pr...

Страница 137: ...nd with Function Boards a slot with Bus Bridge Board or suitably prepared slot must be available for each Board A slot with a Bus Bridge Board must be available Switch the equipment off Unscrew the Bu...

Страница 138: ...wer LED lights up as soon as the System is provided with power and switched on This LED goes out if the operating voltage fails the System is switched off or the power sup ply unit is faulty 9 1 1 2 S...

Страница 139: ...blems can be identified during a faulty synchronization by means of the Error Byte see Chapter 5 3 2 ERROR Byte If at least one bit in the ERROR byte is active an E is displayed on the bottom right of...

Страница 140: ...Board is in an undefined condition program malfunction then this is recognized by the Control Board 6844 RC and the System triggers a system wide hardware reset Bus Bridge Boards installed in the fact...

Страница 141: ...al interface via COM0 The different System statuses can be displayed and reception records performed here hmc Management Console over the network via LAN Management Board Module 6844MNG option The dif...

Страница 142: ...blem Solution The display is faulty The connection cable between the Control Board and the display is not plugged in correctly or is faulty 9 2 4 Power LED ON Cyclical Flickering of the Displays Descr...

Страница 143: ...range of the antenna to the sky is limited Case 3 GPS Effect The equipment was working perfectly but has not been receiving for several days 7 satellites appear in the visibility range V 07 However n...

Страница 144: ...nsposed 9 2 8 Incorrect Time Output A wrong configuration can cause errors on the output of the local time as well as of the UTC time Only the local time can be entered by means of the keypad Local Ti...

Страница 145: ...ons other than those listed in Chapter 9 2 Er ror Patterns please contact Support at hopf Elektronik GmbH with an exact description of the fault and the following information With PCID Product Config...

Страница 146: ...media The use of such cleaning agents or media could damage the System 6844 RC Do not use a wet cloth to clean the System 6844 RC There is the danger of an electric shock To clean the System 6844 RC u...

Страница 147: ...upply with Standard Power Supply Nominal input voltage 115 230V AC 47 63Hz Connection via input connector compliant with IEC EN 60320 1 C14 incl EMI line filter Current consumption at nominal values a...

Страница 148: ...t nominal load 20msec 100V AC Turn on time after application of mains voltage 500msec Transient overvoltage protection Overvoltage category II EN 60664 1 Input fuse internal 2A equipment protection Re...

Страница 149: ...work with LAN Management board module 6844MNG o WebGUI of the LAN Management board module via Network Display LCD Display 2x16 digit Character height 5mm Display type alphanumeric Background illuminat...

Страница 150: ...aintenance free buffering at least 3 days typ 7 days max 10 days Time offset accuracy 2msec Crystal accuracy 32 768kHz 25ppm at 10 C to 50 C Board 6844 MTBF in h MTBF in Years a Complete Board 6844 RC...

Страница 151: ...0 6 Freewheel stability 2 3 2 10 6 Synchronisation Source hopf Master Slave String PPS hopf GPS System 6844RC Interne System Accuracy System PPS 1 Accuracy 2 4 80ns Jitter 2 3 10 8 Freewheel stability...

Страница 152: ...Hz msec Jitter Stability see 1kHz msec Signal level TTL 5V low active 1 IRIG B 2 Offset at System PPS see 1kHz msec Jitter Stability see 1kHz msec Signal level TTL 5V low active 1 Signals from status...

Страница 153: ...CF77 ADD Configuration time basis UTC hex 80 DCF77 High pulse length 200 msec hex C8 DCF77 Low pulse length 100 msec hex 64 DCF77 TimeOFF Timer 55 minutes hex 3C IRIG B 1 digital configuration local t...

Страница 154: ...ve the skyline and forwards them to the GPS receiver via a coaxial cable 4 satellites are re quired for continuous time evaluation hopf GPS radio controlled clocks have a Position fix function for dif...

Страница 155: ...system calculates the correct UTC time from the local time via the internally set time offset and the DST changeover points 12 3 1 1 DCF77 Signal Structure The complete time information is transmitted...

Страница 156: ...day day of the week month year 0 15 45 30 M P3 80 40 20 10 8 4 2 1 10 8 4 2 1 4 2 1 20 10 8 4 2 1 P2 20 10 8 4 2 1 P1 40 20 10 8 4 2 1 S R A1 Z1 Z2 A2 DCF77 time code format M Minute mark 100msec R Th...

Страница 157: ...mulate the DCF77 signal for other clocks in order to operate DCF77 clocks in locations where the DCF77 signal is not available This can realized as DCF77 antenna simulation 77 5kHz and also as DCF77 p...

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hopf Elektronik GmbH 6844, Техническое руководство

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