PSRO-100
Contents
1. jt own DEO0000000 synch to PPSREF ddddddd pulse Width by ddddddd Pulse Width by 133ns Pulse Width 133ns step Max 7499999 step Max 7499999 PWO000000 no pulse 0000000 no pulse Time of day TD lt CR gt lt LF gt hh mm ss lt CR gt lt LF gt hh hours ss seconds Set time of day TDhh mm ss lt CR gt lt LF gt hh Hours hh mm ss lt CR gt lt LF gt hh hours ss seconds ss seconds mm month dd day lt CR gt lt LF gt mm month mm month dd day dd day ddddddd delay in 133ns step sppp phase error in ns s signe hh hours mm minutes ss secondes s status yyyy year mm month dd day X X X X x xX x 2 3 4 5 6 7 A B X Beat every BTx lt CR gt lt LF gt x 0 Stop beat second x 1 Effective Time interval ddddddd lt CR gt lt LF gt or on serial port PPSOUT vs PPSREF sppp lt CR gt lt LF gt or Phase comparator ddddddd sppp Both x 1 amp x 2 lt CR gt lt LF gt or Beat Time of day hh mm ss lt CR gt lt LF gt Beat status s lt CR gt lt LF gt Beat lt CR gt lt LF gt lt CR gt lt LF gt Beat Date Time Status yyyy mm dd hh mm ss s Beat NMEA PTNTA Beat NMEA PTNTS B Set freguency FCsddddd lt CR gt lt LF gt s signe sddddd lt CR gt lt LF gt adjustment ddddd limited within range 32767 32768 FC 99999 interrogation s signe ddddd frequ Adj in 5 12 x 10 step OSpectraTime Page9of 16 iReference PSRO 100 Spec Command Syntax Dat2. Standad SUBD9F 5 GND be 15 Y Se J50 TSM SUBDOM 5 GND O o J60 Standad MlL4PM CD bDCPower10 36V __ brown Cables Schematic J10 A C axial capile 7 J20 E standart j fA brown white cable Ja 2 Ea E green J40 Fp VES n Coaxial cable r gt J20 i poo Specific SM brown white A COn J30 Ea green J50 2 l j white J60 im brown SpectraTime Page 14 of 16 iReference PSRO 100 Spec a Tb 11 LED Green when ext power applied battery loaded Flashing green charging yellow clock ON running on battery flashing when battery too low LED Red during warm up or Rb failure H2 Ready Green Rb OK LED green if OK MARL LED Green when tracked Flashing green during tracking phase Yellow when no reference Operational Storage CLK OFF interrupteur 2 positions GPS 1PPS IN interrupteur 2 positions Accessories if room 24V power cable 3m with mating available connector on PSRO only 220V Standard Swiss plug cable in Box cover harness for slave clock synchronization 8m of TSM Patch antenna with 6m cable SpectraTime Page 15 of 16 iReference PSRO 100 Spec Base in standard operation conditions Alternative Operation Conditions cover closed or opened SpectraTime Page 16 of 16
3. 1 Low temperature in accordance with MIL STD 810 C method 502 1 Change of temperature in accordance with MIL STD 810 C method 503 1 Up to 10 hours Page 2 of 16 iReference PSRO 100 Spec SPECIFICATIONS ELECTRICAL Spec PSRO 100 Standard 10MHz 1PPS See SmarTiming section below Short Term Stability ordering code S 1E 11 3E 12 1E 12 Phase Noise dBc Hz ordering code S RFOUT 10 MHz 80 100 Aging lt 5E 11 month Measured after 3 months of continuous operation typical 3E 11 month Frequency Retrace lt SE 11 Off On 24 hr 1 hr In stable temperature gravity pressure and magnetic field conditions RFOUT Levels Output Sine wave 0 5 Vrms 10 50 Q Impedance 50 O 20 Harmonics lt 25dBc Spurious f 100kHz DDSOUT Off lt 80dBc GPS Antenna Connector SMARTIMING FUNCTIONALITY Spec PSRO 100 Standard PPSOUT 1PPS Output level CMOS 0 5V 20 mA sink source Pulse width PW or duty cycle User settable 0 to 1s in 133ns step PPSOUT to PPSREF Sync Error lt 50 ns In Sync mode No GPS PPSRef noise 1 C temp fluctuations PPSOUT to PPSREF DE Programmable delay In Track mode O to 1s in 133 ns steps Smart Loop Time Constant Auto adaptive 1000 to 100 000 sec Phase Frequency User settable Sync Track mode User settable Selected by RS232 interface Sync phase time alignment Track frequency alignment GPS ANTENNA Spec GPSReference Standard Antenna Types Pa
4. AL 51 0 5 STORAGE EL jcc PPS IN i Os 22 GPS SYNC SOURCE pct a E GPS ANT V m SO AC POWER 100 240V 50 60HZ 0 6 0 4A MONITORING i OSpectraTime Page 12 of 16 iReference PSRO 100 Spec System l O Interfaces TOP PLATE N Type Definition AC Input PPS Input Serial communication RS232 NMEA Input On Off switch DC PPS or GPS Sync selection switch On Off switch AC AC protection c c Cc cq SIDE PLATE Definition N MIL 4P F C Power 10 36V c E lt O D PPS Output OMHz Output PS Antenna connection NMEA Output Power indicator Ready Track DC 10 36V protection Cj Ce Ce Ce CONNECTORS PINOUT Type Pin Signal PS SUB D9 F SUB D9 F SUB D9 F gt U DC Power 10 36V O O 2 TXD 3 5 GND MIL 6P M NMEA input GND NMEA input RXD MIL 6P M HED O MIL 6P M MIL 6P M gt lt Z U O NMEA output GND NMEA output TXD c c cic ccc cc CO CO OO OO NININ canem o OSpectraTime Page 13 of 16 iReference PSRO 100 Spec Po CABLEPINOUT U OO N Cable Length Type Pin Signal Ho Standard BNC Bin AD E mamau a A S J30 Standad _ ML6 PF C NMEAoupu TXD J30 Standad 1 ML6PF D NMEAipu RXD ee y a E 00 5y J40_ Standad SUBD9F 3 _ NMEAinpu RXD J40
5. F gt S signe sddd lt CR gt lt LF gt S signe comparator ddd limited with range ddd offset in approx Offset 127 128 1 ns steps CO 999 interrogation View PPSRef VS lt CR gt lt LF gt ddd d lt CR gt lt LF gt ddd d Sigma of PPSRef in Sigma ns In tracking Status 2 3 VT lt CR gt lt LF gt dddddd lt CR gt lt LF gt dddddd Loop time constant constant now in use inns ddd limited with range ddd raw phase just asked in 127 128 133 ns steps controller message GPS binary Standard GPS Antenna A GPS patch antenna with 5 meters 16 4 of cable is included in the normal package This antenna can be installed close to a window If installed in a region susceptible to lightning a surge arrestor must be installed For the installation please refer to our GPSReference user manual section Safe GPS Antenna installation X X xX x ll HW HF HN N O Set module MCsxx cc c o ll customization lt CR gt lt LF gt NNNNA Hon MH ow m m Aro uor Optional Rooftop GPS Antenna Ordering code RA This kit contains the following items aroof antenna Aa cable of 15 meter 49 4A cable of 5 meter 16 4 a lightning arrestor Custom GPS Antenna The customer can install another antenna In such case the antenna connector of the device supplies 5V 30 mA for the amplifier Please note that the device is CE tested only for an antenna cable less than 30 meters 98 For the installa
6. a field Response Response data name command if any syntax if any Set frequency FSx lt CR gt lt LF gt never save x 0 never save save Integral save every 24 hours X 1 save every 24 hours part when Status save right now 2 3 save actual freq now interrogation Set Tracking TWddd lt CR gt lt LF gt ddd Half Tracking Window ddd lt CR gt lt LF gt ddd Half Tracking Window Window by 133ns step by 133ns step From 1 to 255 ddd 999 interrogation Set no Alarm AWddd lt CR gt lt LF gt ddd Half no Alarm Window ddd lt CR gt lt LF gt ddd Half no Alarm Window Window by 133ns step by 133ns step From 1 to 255 ddd 999 interrogation Set tracking TCdddddd lt CR gt lt LF gt dddddd Time constant in Dddddd lt CR gt lt LF gt dddddd time constant in phase loop time seconds 001000 to 999999 seconds constant TC000000 change to auto lt TC001000 no change Load parameter cc c lt CR gt lt LF gt ccc c response to MCLxx Store parameter ccc c or or to MCHxx Load start behaviour Activate msg at start d lt CR gt lt LF gt or d 0 1 response to MCBdd Cancel msg at start xy lt CR gt lt LF gt or xy Data Type response Load Help to MCTxx x 0 RAM x 1 Load Data Type eeprom x 2 Flash y 0 Byte xx 00 FF msg number y 1 sByte y 2 Word y 3 ccc c new welcome sWoord y 8 string ASCII message up to 24 characters y 9 strng binary Set phase COsddd lt CR gt lt L
7. d monitoring parameters of the Frequency Reference module are accessible for read and write operations through the serial RS 232 port 9600 bits sec no parity 1 start bit 8 data bits 1 stop bit There are 2 basics commands as follows Mand Cxxxx M CH LF monitors the basic internal signals of the atomic clock The returned answer is HH GG FF EE DD CC BB AA CR lt LF gt Of which each returned byte is an ASCII coded hexadecimal value separated by a lt Space gt character All parameters are coded at full scale HH Read back of the user provided frequency adjustment voltage on pin 2 0 to 5V GG reserved FF peak voltage of Rb signal 0 to 5V EE DC Voltage of the photocell 5V to OV DD varactor control voltage 0 to 5V CC Rb lamp heating current Imax to O BB Rb cell heating current Imax to O AA reserved Cxxxx lt CR gt lt LF gt output frequency correction through the synthesizer by steps of 5 12 x 10 where xxxx is a signed 16 bits word in hexa coded ASCII This value is automatically stored in a EEPROM as last frequency correction which is applied after RESET or power ON operation In Track mode this correction is not in use The function FCsddddd does the same but the data format is different There is a command to set the SYNTH output frequency TXXXXXXXX lt CR gt lt LF gt Where xxxxxxxx is an unsigned 32 bits in hexa coded ASCII stored in EEPROM The frequency is changed after a rese
8. e GPSReference using its built in 10MHz Rubidium reference clock Normal initial After track set up After delay 10t After sync set up situation PPSINT is aligned PPSINT is perfectly PPSOUT is In free run within 133ns to aligned to PPSREF aligned to PPSINT PPSREF TIM TIM 0 3 lt 133ns 0 PPSREF PPSINT PPSOUT Track Sync Figure 1 Track amp Sync Modes OSpectraTime Page5of 16 iReference amp PSRO 100 Spec Date O2 06 04 Time 12 58 04 Data Points 1 thru 429568 of 429568 Tau 1 0000000e OO File TR PT x00519 1a 006 TR_PT_x00319_1a 006 co lt 3 ot des an ta i o L Tau Sigma A cw E 1 00e 00 3 55 gt 2 00e 00 2 Oo 4 00e4 00 i 8 00e 00 d 1 60e 01 o i 3 20e 01 e 6 40e 01 tn i i 1 28e 02 ira CO 7 2 56e 02 gt fe S 5 a 5 12e 02 1 90e 12 1 1 02e 03 1 61e 12 am I 2 05e403 i 4 10e 03 1 8 19e 03 1 3 28e 04 4 i_ 6 55e 04 o cg i Dd o gt 1 On c 109 10 10 10 10 10 Averaging Time t Seconds Stoble52 Figure 2 Frequency Stability Performance OSpectraTime Page6of 16 iReference PSRO 100 Spec MECANICAL DESCRIPTION 220X280X350mm Aluminium Box OSpectraTime Page7of 16 iReference PSRO 100 Spec RS 232 CONTROL amp MONITORING COMMANDS Frequency Adjustments amp Rb Loop Monitoring Functions The working an
9. iReference PSRO 100 Spec 5 Sp ECTRA Time d Timing Solutions Revised 23 November 2010 Water Proofed High Performance GPS portable Rubidium Reference Source PSRO 100 Smart GPS SRO Reference Source SmarTiming4 1ns Resolution Disciplining Technology Inside INSIDE SMARTIMINGO TECHNOLOGY denk stein net MEASUREMENT TECHNOLOGY Kaiserin Augusta Allee 8 10553 Berlin Germany Q 49 30 398981 28 S 49 30 398981 39 APPLICATIONS anew sales denk stein com www denk stein com Military Reference Test Source Time Frequency Source SpectraTime Specifications are subject to change without prior notice iReference PSRO 100 Spec KEY FEATURES e GPS disciplined Rb clock e Power supply voltage e Reference Frequency e Phase time resolution and noise e Output Frequency e Integrated smart auto calibration e Internal Bit Alarm e RS232 standard interface e Software application e GPS antenna types Auto adaptive SmarTiming loop time constant running at 1ns resolution DC 11 8V to 36V standard Standard AC input 85 264VAC 47 63Hz Integrated GPS locked Rubidium clock 2ps rms 10MHz and 1PPS 9600 b s Windows 98 XP Patch e External PPS synchronization input along with NMEA messages synchronization e Battery Operation Automony Waterproof case OSpectraTime IP 65 in accordance with DIN 40050 High temperature in accordance with MIL STD 810 C method 501
10. of operation Free Run Track and Sync The Free Run mode is when the Rubidium clock is not locked to a reference and thus free running The Track mode is when the reference is used to perform freguency alignment applications whereas the Sync mode is when the reference is used to perform phase alignment applications As illustrated in Figure 1 when the GPSReference works in Track mode it uses the PPS GPS as a reference PPSREF to align the freguency of the Rubidium clock The freguency alignment is computed by an internal phase time error signal that is generated by an internal PPS signal PPSINT which measures the signal at 1ns resolution through its SmarTiming technology The PPSINT then aligns the PPSREF phase In the Sync mode the GPSReference phase aligns the PPSOUT to the PPSREF with the PPSINT reference signal which uses SmarTiming algorithm to 1 compare the PPSOUT and PPSREF signals at 1ns resolution within a 500ns dynamic range and 2 auto adaptively align them The GPSReference has also the capability to dynamically analyze the stability of the PPSREF signal through the excellent mid term freguency stability of the Rubidium technology Thus the 1PPS GPS reference can be directly fed to the Rubidium clock without specific analysis of the internal optimization parameters of the GPS engine i e number of satellites in view signal to noise ratio etc Figure 2 illustrates the typical freguency stability performance of th
11. t Frequency Sn OMA SpectraTime Page 8 of 16 iReference PSRO 100 Spec Timing amp Locking Control Commands Using the same data interface the Reference module can accept the following basic ASCII commands Data is in decimal ASCII code Data field Response Response data if any syntax if any Identification ID lt CR gt lt LF gt NTSRO aaa rr s ss aaa 100 CR gt lt LF gt rr revision number s ss software version SN lt CR gt lt LF gt XXXXXXx lt CR gt lt LF gt XXXXXX 6 digits serial nbr UM Status ST lt CR gt lt LF gt s lt CR gt lt LF gt warming up tracking set up track to PPSREF synch to PPSREF Free Run Track OFF FR PPSREF unstable FR No PPSREF factory used factory used fault or Rb OOL Set Tracking TRx lt CR gt lt LF gt Track never x lt CR gt lt LF gt Tracking commands status PPSINT Track now 0 Track OFF PSSREF Track ever 1 Track ON Track now ever when Status 9 gt 4 Interrogation Set SYx lt CR gt lt LF gt Synch never x lt CR gt lt LF gt x Sync commands status Synchronisation Synch now x 0 Synch OFF PPSOUT Synch ever x 1 Synch ON PPSINT Synch now ever When Status 1 gt 2 Interrogation Set PPSOUT DEddddddd lt CR gt lt LF gt ddddddd delay by 133ns ddddddd lt CR gt lt LF gt ddddddd delay by 133ns step delay step Max 7499999 Max 7499999 Command Syntax name command came eo X X X X X iN o lt x OX x
12. tch antenna kit Roof antella kit ordering Cable Length 5m 16 4 code RA SpectraTime Page 3 of 16 iReference PSRO 100 Spec POWER Spec PSRO 100 Power Input Fluctuation 10 of nominal supply voltage Power Consumption 25 C lt 25W after warm up Connector Type Battery power autonomy at 25 C ENVIRONMENT PSRO 100 Operating Temperature at continuous 20 C to 50 C in accordance with MIL STD 810C method operation without external power supply and 501 1 and 502 1 at very low temperature battery power autonomy may decreased down to 2 hours only TBC Change of temperature in accordance with MIL 810C method 503 1 25 to 60 C Ingress protect IP 65 in accordance with DIN 40050 PHYSICAL Spec PSRO 100 SS a aaa Standard Option Size 250x300x320 mm 9 84x11 81x12 6 in Weight 8 5 kg 18 74 lbs SYSTEM SUPPLY Type PSRO 100 Cables SUB D MIL for PC serial COM for NMEA timing messages IN OUT Operating manual amp specifications on CD ROM Optional Stable32 Time amp Frequency software application ordering code ST32 on CD ROM SOFTWARE UPGRADES PSRO 100 Download the latest software upgrades at www speciratime com ORDERING INSTRUCTIONS PSRO 100 XX YY d 1 N Type Option 1 Option 2 SpectraTime Page 4 of 16 iReference PSRO 100 Spec SYSTEM DESCRIPTION The GPSReference integrates a smart Rubidium atomic clock and a GPS receiver It has 3 basic modes
13. tion please refer to our AN Custom GPS Antenna Installation SpectraTime Page 10 of 16 iReference PSRO 100 Spec NMEA system description For synchronization NMEA input amp NMEA messages output RS232 speed specification 9600 bits sec no parity 8 data bits 1 stop bit RS232 voltage specification State Transmitting Buffer type MAX 3311 Space state 0 4 Volt 2 4 20 Volt Mark state 1 4 Volt 8 20 Volt NMEA message GPRMC SGPRMC hhnnss 00 a llmm mmmm a yymm mmmm a ddmmyy E CS CR LF hhnnss 00 hour minute second UTC a status of the clock A ok V2 warning llmm mmmm latitude in degree minute or absent a N north S south yymm mmmm longitude in degree minute or absent a E east W west Ddmmyy day month year E always E CS check in hexa xor of the characters between and OSpectraTime Page 11 of 16 iReference PSRO 100 Spec Electrical Bloc diagram Battery pack 10 X FI Dc in Fuse H De in ryder cible plat 20 pales HI Green Power Yellow H2 Gree Lock Red Lu 7 H3 Green Track Yellow J9 NMEA out Female 6 contact J2 PPS out TNC J3 10 MHz out ll J4 Antenna SMA E alc J7 Switch Fw Filter AC i in 6 RS 232 NMEA in ne Seit h l Switc YA PPS IN GPS ON OFF System I O Interfaces a A NMEA IN DC POWER 10 36V FUSE POWER iy 10 MHz TRACK PPS OPERATION
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