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SERTEL T-GPS-300 Operation Manual

Gps / master clock system
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Summary of Contents for SERTEL T-GPS-300

  • Page 2 SERTEL ELECTRONICS (PVT)LTD COMPANY PROFILE Dear Customer, GPS Based time synchronization for various equipments of electrical / Instrumentation and computers. Ref: - Power generation / Distribution With reference to the above we are glad to inform you and also introduce ourselves that we are the manufacturers of time synchronization with an accuracy of 1 micro sec for time stamping.
  • Page 3 19 inch rack with a power supply and battery charger to give uninterrupt power for the functions of the above system. We here by SERTEL manufacturers time and frequency indigenously and available at all times.We are enclosing herewith our user’s list for your per usual and we are proud to associate with yourself and all...
  • Page 4 BSES, Reliance power, GAIL and other consultancy also. In case if you can inform us as your consultant we are glad to take an approval to enable yourself to use our equipment for your projects. Yours faithfully, For SERTEL ELECTRONICS PVT. LTD (R. GOPALAN)-CHIEF EXECUTIVE (R.PRABHAKARAN –DIRECTOR. SERTEL ELECTRONICS PVT. LTD...
  • Page 5 SLAVE CLOCK BOOSTER UNIT OPERATION GPS / MASTER CLOCK & SLAVE CLOCK SYSTEM FEATURES OF GPS RECEIVER GPS RECEIVER LOCK/ UNLOCK SERTEL MASTER CLOCK A& B INTENDED MASTER CLOCK OPERATION PROCEDURE TO SET IN DATE TO SET IN TIME REDUNDANT COMPARATOR UNIT...

  • Page 6: Wiring Diagram

    II WIRING DIAGRAM a) GPS Antenna fixing b) GPS Receiver connection c) GPS Receiver to MASTER CLOCK Connection e) Master A & B to comparator f) Comparator to signal conditioner g) Line driver /Receiver connection h) Power supply A & B and Diode Oring i) Slave clock connection j) Signal booster with Slave clock connection k) Supply voltage ferule connection...
  • Page 7 U.S. Government selective availability (SA) Policy. SERTEL is not liable for the degradation by SA Users are expected to be familiar with system and make . Full use of it with their own responsibility. SERTEL Electronics Pvt. Ltd reserves the right to make changes to our products any specifications without notice.
  • Page 8 SERTEL TIME SYNCHRONISATION SYSTEM The system consists of GPS ANTENNA/ WITH LOW LASS CABLE GPS RECEIVER 3. MASTER CLOCK- A & B 4. REDUNDANT COMPARATOR CLOCK SIGNAL CONDITIONER FOR RS 232 OUTPUT Signal conditioner PULSE OUTPUT Signal Conditioner IRIG B OUTPUT Signal Conditioner...

  • Page 9: Gps Antenna

    GPS ANTENNA Model : GPA-014 Type : Helical Mount : Fixed (necessary mounting brackets will be provided) Axial ratio : 5 dB Co-axial cable : Low Loss Coaxial Cable (0.33 dB/metre),100 metre along with matching connection Connector : TNC / N Connector Total gain : Over 30 dB Noise figure...

  • Page 11: Gps Receiver

    GPS RECEIVER Model : T-GPS-300 Type : Micro Controller type Display ; Backlit LCD display 24 Hours format Time Accuracy : Better than 1 PPM Input ; 1575.14 MHz from Antenna Input Connector : BNC Output : RS 232 1 PPS OUTPUT to Redundant...
  • Page 13 MASTER CLOCK A & B-data Model No. : T-MA-300 Type : Micro Controller based Display : 7 segment LED(25mm size) to display TIME in HH,MM and SS (24 Hrs. format) & in DD, MM and YY. Time Reference : Oven Controlled Crystal Oscillator with stability of 1PPM temperature range of 0-50 deg.c Time Accuracy : Better than 1PPM...
  • Page 15 REDUNDANT COMPARATOR UNIT-A & B Compressed in One Unit Model No. : T-COM-300 Type : Micro Controller based Display : No Display Only LED Indication Time Reference :Oven Controlled Crystal Oscillator with stability of 1PPM temperature range of 0-50 deg.c Time Accuracy :Better than 1PPM Time / Date Setting :Automatically Synchronized with Master A or B...
  • Page 17 SIGNAL CONDITIONER- FOR PULSE OUT & PFC OUTPUT Model No. : T-SC-300 Type : Micro Controller based Indication : LED INDICATOR FOR Pulse Input and Output Inputs : S,M,H,D Pulse from Redundant Comparator Unit I/P Connectors : Pulse input Through Terminal connector Outputs : a) PFC OUTPUT USER SELECTABLE BY SECOND,MINUTE,HOUR,DAY...
  • Page 19 SIGNAL CONDITIONER FOR RS 232 output Model No. T-SC-300 Type TIME FORMATE Display LED INDICATORS FOR SIGNAL INPUT AND OUTPUTS Inputs RS 232 FROM Redundant Comparator Unit I/P Connectors 9 PIN “D” (M) CONNECTOR Outputs RS 232 Every minute / Every Second O/P Connectors RS 232 O/P 9 PIN “D”...
  • Page 21 SIGNAL CONDITIONER FOR IRIG B (AM) output Model No. T-SC-300 Type AM 1 Khz SIGNAL Indication LED Indication for IRIG B input & output Inputs IRIG B signal FROM COMPARATOR CLOCK I/P Connectors BNC (F) Connector for IRIG B Outputs IRIG B (AM) O/P 1 Khz O/P Connectors IRIG B (AM) O/P Through BNC connectors (F)
  • Page 23 SIGNAL CONDITIONER FOR TCP-IP, output Model No. T-SC-300 Type Network Time Synchronizing Display LED Indication For Signal Input and Output Inputs RS 232 DATA From Redundant Comparator Unit I/P Connectors 9 PIN “D” (M) Connector Outputs TCP/IP Output Every Second to PC Synchronizing O/P Connectors RJ 45 Connectors Supply Voltage...
  • Page 25 SIGNAL CONDITIONER FOR TCP_IP ON NTP Model No. T-SC-300 Type Network time Protocol to IP Based Synchronization Display LED Indication for Signal Input and Signal Output Inputs RS 232 DATA From Redundant Comparator Unit I/P Connectors 9 PIN “D” (M) Connector Outputs TCP_IP ON NTP Every Second O/P Connectors...
  • Page 27 SIGNAL CONDITIONER FOR BCD OUTPUT Model No ; T-CON-300 Type : Micro controller Based Input Signal : Signal from Comparator unit Output Signal : BCD Output Input Connector : BNC Connector Output Connector : 37 Pin D Connector Output From Instrument : SECOND,MINUTE,HOUR IN BCD FORMAT TTL level Parallel BCD output for HH: MM: SS To drive up to 2 mts Length.
  • Page 29 PIN CONFIGRATION: 37 PIN D Connector DETAILS O/P OUTPUT HOUR HOUR HOUR HOUR HOUR HOUR HOUR HOUR NO CONNECTION MINUTE MINUTE MINUTE 2013 MINUTE MINUTE MINUTE MINUTE MINUTE NO CONNECTION SECOND SECOND SECOND SECOND SECOND SECOND SECOND SECOND NO CONNECTION GROUND -ve SUPPLY GROUND...
  • Page 30 POWER SUPPLY /BATTERY CHARGER UNIT-A & UNIT-B Model No. T-PSU-24 V Input 230 +/-10% AC from mains or UPS 50Hz AC I/P connectors : Through AC filter Output 24V DC 4 Amps Max. to system supply 26.5 V DC to BATTERY ( 6AMP max ) Connectors 3way connectors for 24 V DC &...
  • Page 33 DIODE ORING UNIT Model T-PSU-24V Input 24V DC X two Terminal Type Redundant Power Comparator I/P connector Input (1) terminal (+) (-) Input (2) terminal (+) (-) Current rating 4 Amp. Max. Output Isolated 24V DC Supply to Modules Front Panel LED indicator Input 1on &...

  • Page 35: Technical Specifications

    DIGITAL SLAVE CLOCK : MODEL No. T-SL300-100-6D TECHNICAL SPECIFICATIONS: Display HOUR, MINUTE & SECONDS in 24 Hrs format Display size : 300mm. 7 segment Red LED - 6 Digits. Input : Differential Pulse from Comparator unit Clock. Power Supply 240/220/110V AC Supply or ( Customer Specification) Connection : Slave clocks are connected to Master Clock by 3 core copper Conductor.
  • Page 37 LINE DRIVER / LINE RECEIVER INTRODUCTION SERTEL Line Driver is a stand alone, reliable and easy to use device and occupies very little space . Computer / Instrument terminals are generally connected mainframe installation through RS 232C Interface. Serial port (RS 232C) can support only upto 50 feet.
  • Page 39 SLAVE DISTRIBUTION AMPLIFIER Model No. T-SDA-300 Display LED Indication Input Differential Pulse from Comparator / Master Clock Unit. Output Amplified Diff Pulse 4 Nos (Provided for 4 Direction) Power Su-pply 24V DC From Diode Oring Unit Signal Amplification : Every second Environments a) Temperature : 0-50 Deg.C b) RH...
  • Page 41 SLAVE CLOCK SIGNAL BOOSTER UNI Model No. T-SBU-300 Display No Display Input Differential Pulse from Comparator/ Master Clock Unit. Power Su-pply 230V AC 50 Hz Connection Signal booster are connected to Slave clocks by 3 core copper Conductor. (MULTI DROP SYSTEM ). Signal Amplification : Every second Environments...
  • Page 42 OPERATION INSTALLATION/COMMISSIONING GPS MASTER CLOCK SYSTEM INSTALLATION OF SERTEL GPS Based MASTER & SLAVE CLOCK SYSTEM Make sure your power supply is in compliance with specification Make sure the connection of BATTERY. If applicable The GPS antenna is an active type its drawing power from GPS Receiver .
  • Page 43 8. The GPS Receiver internally controls its accuracy of time and will not output is available as indicator by the glowing of GREEN LED in the front panel, its accuracy is within +/- 1 msec, of UTC. 9. TTFF : The conditions and period of time from POWER ON to first fix are as follows Conditions and period of time from Power on to first fix are as follows: Power on Accuracy availability of Initial...
  • Page 44 GPS / MASTER CLOCK & SLAVE CLOCK SYSTEM . GPS Antenna Collects the signals transmitted by GPS satellites and transmit the data to the GPS Receiver for further processing through the low loss inter connecting cable. . GPS Receiver A & B Collects the signals from the GPS Antenna and generates 1 No of RS 232 and Pulse output (1 PPS) to synchronise the Master Clock.
  • Page 45 Signal Conditioner Units Separate Signal Conditioner Units are provided for RS232, Pulse output IRIG B outputs. TCP/IP Output and TCP-IP ON NTP Output These output are galvanically isolated. The pulse outputs are customer selectable. power Supply / Battery Charger Unit To establish total redundancy in the power supply/ Battery Charger arrangements 2 Power Supply Units (A&B) are provided.
  • Page 46 With respect to time the degradation is approximately 300-500 nano seconds GPS RECEIVER WITH SATELLITE LOCK / UNLOCK SERTEL provided satellite lock / unlock indication & Contact output. . Switch on the system the GPS LED Not glow This indication known as the GPS Receiver not locked with the satellite.
  • Page 47 SERTEL Master Clock A & B is intended to a) Display correct time at different locations Irrespective of distance / number. b) Maintain time accuracy within ± 1 Seconds / day c) Provide tailor-made 7 segment LED display of HRS, MINTS and SECONDS in 24 Hours format.
  • Page 48 OPERATION PROCEDURE MASTER CLOCK ( with out GPS Receiver Signal ) 1. Switch off the GPS Receiver 2. Wait for 15 minutes to ensure that the Oven Controlled Crystal Oscillator attains the Operating temperature and stabilizes its output frequency. 3. Set Date and Times using THUMBWHEEL SWITCH, DATE / TIME TOGGLE SWITCH and. ENTER PUSH BUTTON.

  • Page 49: To Set Time

    To Set TIME Set the DATE/ TIME TOGGLE S/W to TIME POSITION. Set the time through THUMBWHEEL SWITCH marked HH,MM,SS. Example; To set 10 HRS, 30 MNTS & 30 SECONDS /-------------------------------------------\ | -- | 1 | 0 | 3 | 0 | 3 | 0 | \-------------------------------------------/ -- H...
  • Page 50 Redundant Comparator Unit This Unit consists of 2 identical Redundant Comparator Modules connected to the outputs of GPS RECEIVER & Master Clocks A & B. The Redundant Units receive the time signals generated by the Master Clocks A & B Compares them to assess synchronization.
  • Page 51 RS 232 OUTPUT FROM SERTEL SYSTEM ( BH 123 FORMAT) The GPS/Master Clock should send an ASCII string of length 18 bytes with time of day / date and control codes automatically in the format as described below : CHAR NO.
  • Page 52 RS 232 OUTPUT (SEPL 001 FORMAT) SERTEL provide a serial asynchronous bi-directional data port . The serial data port factory configured with RS 232 (standard) signal level. RS 232 output is compatible electrically and mechanically with the EIA standard RS 232C as described for data terminal equipment (DTE) 9 pin ‘D’...
  • Page 53 RS 232 OUTPUT ( 002 FORMAT) THL RS 232 OUTPUT RS 232 FORMAT BADURATE 2400 DATA BIT PARITY EVEN STOP BIT PIN Nos OUTPOT RS 232 OUTPUT GROUND PROTOCAL : XXX ; XX ; XX ; XX ? ; XXXX CRLF Julian hour minute second...
  • Page 54 RS 232 OUTPUT ( V24 OUTPUT FORMAT ) RS 232 V24 is used to transmit the absolute time from the Master Clock System The Format as follows; Start Bit Definition bit - 8 Parity bit - even Stop Bit Transmission Every Minute of seconds 02 Harpes Designation Num-of Bytes...
  • Page 55 Expo 90 Designation Num-of Bytes Value Delimiter Constant hexadecimal value FF Header Constant hexadecimal value 01 State byte See below Start of transmission Constant hexadecimal value 02 Day of the week Value in BCD (0)= Monday to 07 = Sunday Year Value in BCD ( 01 to 99 ) Month...
  • Page 56 RS 232 OUTPUT (SEPL 001 FORMAT) Time Synch with PC, Server Application Software installation procedure Service Name: Sertel time synchronisation system Input: RS232 - Sertel Format OS Platform: WinNT/Win2000/Win2003/WinXP Synchronisation at: Every Minute Steps to follow ( to register a timesync service): --------------------------------------------------- 1.
  • Page 57 TIME SYNCHRONISATION TCP/IP OUTPUT PC SYNCH- THROUGH NET TCP / IP PORT Introduction The EAD connects serial devices to Ethernet network using the IP Protocol. The EAD connects serial devices through a TCP data channel connection to computers. Network protocol The EAD uses IP protocol for network communication.
  • Page 58 Service Name: Sertel time synchronisation system Input: TCP/IP - Sertel Format OS Platform: WinNT/Win2000/Win2003/WinXP Synchronisation at: User Selectable via syncip.ini Steps to follow ( to register a timesync service): --------------------------------------------------- 1. Copy TCPIP folder into c:\ as (c:\TCPIP) 2. Click "start"...
  • Page 59 SERTEL NTP/SNTP Configuration Procedure ***************************************************************************** Service Name: Sertel time synchronization system ***************************************************************************** STEPS TO CHANGING IP ADDRESS:(windows ONLY) ------------------------------------------------------------ NOTE1:” ”. SWITCH ON THE UNIT AND CONNECT THE ETHERNET CABLE WITH THE NTP UNIT NOTE2:” YOU SHOULD CHANGE YOUR SYSTEM IP ADDRESS RELATED TO OUR DEFAULT IP ADDRESS ”.
  • Page 60 You have to type "telnet 192.168.1.254" and click ok. It will show ts7200 login: here you have to type "admin" then press enter button. It will show password: here you have to type "ntp" then press enter button. Now you can see '$' symbol.
  • Page 61 Now you should type the command "cd /etc/sysconfig" then press enter button. Now you should type the command "vi ifcfg-eth0"then press enter button.
  • Page 62 It will show IP address and subnet mask details. Here you can see IPADDR=192.168.1.254 at the second line. Here you press down key to second line then press right (->) key to move cursor right side up to end (IPADDR=192.168.1.254_). Now you press x button till (IPADDR=_) then stop pressing.
  • Page 63 Now sertel's default IP address deleted. Now you enter " i " button once, then you press right (->) key once (this is for give 1 space between numbers and letters). Now you type your IP address according to your requirement (Note: should not use any using IP address in your network).
  • Page 64 Now you can see '$' symbol. Now type, "reboot". Now your ntp server IP addresses have been changed. NOTE4:" " YOU SHOULD CHANGE YOUR SYSTEM DEFAULT IP ADDRESS *****************************************************************************...
  • Page 65 STEPS TO SYNCHRONISE WITH (windows XP and windows 2003) SYSTEM: ----------------------------------------------------------------------------- Click "START" at the bottom left corner of the desktop then go to Run. Type "regedit" then enter. Click HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32time\Time- Providers\Ntpclient. (root key for the time service). Right click specialpollinterval and click modify and delete the value 604800 and type 3C. Click KEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32time\config (root key for the time service).
  • Page 66 Right click MaxNegPhaseCorrection and click modify and delete the value 54000 and type ffffffff. Right click MaxPosPhaseCorrection and click modify and delete the value 54000 and type ffffffff. Right click Update Interval and delete the value 00057e40 and type 3C. ************** Right click the time at the right bottom corner.
  • Page 67 It will show date and time properties. Now you have to select Internet Time. And you have to tick the option that Automatically synchronize with Internet Time Server. Then you have to enter your new NTP server IP address inside the server box. Now you click Apply, then click Update Now option, then click ok.
  • Page 68 STEPS TO SYNCHRONISE WITH (Other than windows XP) SYSTEM: You have to use net time software for synchronizes your pc time. Double click NetTime-2b7.exe. Follow all instructions. It will store its services at START-All Programs- Net Time. More over it will store its icon at right bottom corner near time. Now you have to right click net time icon and select properties.
  • Page 69 PULSE OUTPUT AND PFC OUTPUT SERTEL provided Contact pulse output from Signal conditioner for 1 PPS, 1PPM , 1 PPH ,1PPD. ( 5 Sec, ½ H Pulse output ) The Contact pulse outputs are fully isolated outputs. All Contact pulse output are Programmable Output. Pulse Output Duration...
  • Page 70 THUMP WHEEL PULSE SELECTION PFC / PULSE FIELD PROGRAMMING PROCEDURE, • TURN-ON LOCK SWITCH, • SET RELAYS TO PROGRAM ON THUMBWHEEL • SELECT REQUIRED OUTPUT AS BELOW SETTING • TO REGISTER, ENTER THE PUSH SWITCH • RL 01 TO 10 THUMBWHEEL FOR RELAY SELECTION •...
  • Page 71 The frame length of IRIG-B is 1 second long and contains 100 elements (pulse) each of which starts every 10 milli second (unmodulated) and 1 Milli second (modulated) . SERTEL GPS/MASTER CLOCK provide output of IRIG-B in amplitude modulated signal(1Khz) output at rear panel of BNC Connectors. This will help us long distance...
  • Page 72 Format B Signal B000 The beginning of each 1.0 second time frame is identified by two consecutive 8.0 ms bits, and P The Leading edge of P is the on-time reference point for the succeeding Time Code words. Position identifiers, and P through P (8 ms duration) occur every...
  • Page 73 SERTEL DCF 77 Introduction DCF time code (slow code, 1 bit/sec.) Minute pulses (time marks) Hour pulses (optional time marks, 1 second duration). The time information corresponds to local time (UTC + programmed time shift). DCF time code : The DCF time code (as transmitted by the German DCF77 transmitter on 77.5 kHz) is a slow serial time code consisting of 60 bits, transmitted at the rate of 1 bit/s.
  • Page 74 The time information is coded as follows : Bits 0 - 14 : always=0; 15 : quality of radio-synchronization : good =1, bad =0; 16 : upcoming time change : normally=0, before time change=1; 17 : winter=0, summer=1; 18 : winter=1, summer=0; 19 : always=0;...
  • Page 75 Geo-version : output 1 (DCF code or minute pulses) may be programmed to operate on the internal quartz time base only, without automatic corrections by GPS. GPS information is then obtained from output 2, and used for compensating the quartz oscillator drift. Output 2, "F.
  • Page 76 Output 3, current-loop (optional) : 20 mA current-loop output (passive). Voltage to be applied : 12 - 40 VDC. Minimal voltage at 20 mA : 9 V. 1=20mA, 0=4mA.). Same signals as output 1. Output 4, RS-232/RS-485 : output of time information in RS-232 ASCII format, 1200 Baud. 5 formats selectable by menu.
  • Page 77 4. <STX>/K/Y/Y/m/m/D/D/d/D/O/Y/H/H/M/M/S/S/s/<LRC><ETX> Byte format : 8 data-bits, 2 stop-bits, no parity. 0.5 ms time slot between the bytes. Repetition rate : 1 message every minute, ending exactly on the minute. K=N for standard time (winter); =S for daylight saving time (summer). Status byte=S when good GPS synchronisation;...

  • Page 78: Warranty

    WARRANTY SERTEL GPS Receiver System is warranted against defects in material and workman-ship. For manpower and passive components (like switches, resistors) this warranty is for a period of 12 Months from the date of supply. Expendable items like LEDs, ICs, Transistors, Crystals and other active components are warranted only for a period of 3 months from the date of supply.
  • Page 126 G GG...
  • Page 129 R1IN R1OUT R2IN R2OUT T1IN T1OUT T2IN T2OUT TCU5 LOAD 74LS192 MAX232 74LS245 RESET HEADER 3 SW12 SW11 SW10 SW11 SW10 SW12 SW13 SW14 R0(1) SW15 R0(2) SW16 R9(1) R9(2) 82C55 74LS138 74LS90 74LS245 HEADER 3 SW17 SW18 P0.0/AD0 P2.0/A8 SW19 P0.1/AD1 P2.1/A9...
  • Page 130 5TCU 3TCU 5TCD 3TCD LOAD DIP14 74LS192 1TCU 2TCD 1TCD 2TCU LOAD 1TCD SW10 74LS192 SW11 SW12 SW13 SW14 SW15 SW16 SW17 SW18 SW19 SW20 SW21 SW22 SW23 SW24 SW25 SW26 SW27 SW28 2TCU 2RTCU SW29 SW30 2TCD 2RTCD SW31 SW32 LOAD SW33...
  • Page 131 +12V +12V U14B SL100 SL100 200MSEC S1/OP3 10MF S1/OP6 10MF 74LS14 SL100 TIP122 SL100 TIP122 U14C U14D U14E U14F RESET BC548 TIP122 74LS14 BC548 74LS14 TIP122 74LS14 74LS14 U21A U21B 10MSEC SL100 SL100 74LS14 74LS14 S1/OP2 S1/OP5 TIP122 TIP122 U21C U21D TIP122 74LS14...
  • Page 132 XTAL1 RESET +12V VCC 10MHZ O/P 1KHZ 200 MSEC 10 MSEC IRJG-B TTL IRJG-B O/P SINE 2RXD PD0/RXD PB0/AIN0 2TXD PD1/TXD PB1/AIN1 10MHZ 1KHZ PD2/INTO AIN0 PD3/INT1 PB3/OC1 AIN1 1PPS HEADER 10X2 PD4/TO PD5/T1 PB5/MOSI MAS1 U24A HEADER 8 PD6/ICP PB6/MISO MIS0 U24B...

This manual is also suitable for:

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