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DS-GPS-CLOCK  

TECHNICAL REFERENCE MANUAL 

 

 

The inputs must not, unless otherwise noted (CATx identification), be connected to the main 
circuit of category II, III and IV. 

The power cord separates the system from the power supply. Do not block the power cord, since 
it has to be accessible for the users. 

DO NOT use the system if equipment covers or shields are removed. 

If you assume the system is damaged, get it examined by authorized personnel only. 

Adverse environmental conditions are Moisture or high humidity Dust, flammable gases, fumes 
or dissolver Thunderstorm or thunderstorm conditions (except assembly PNA) Electrostatic 
fields, etc. 

The measurement category can be adjusted depending on module configuration. 

Any other use than described above may damage your system and is attended with dangers like 
short-circuiting, fire or electric shocks. 

The whole system must not be changed, rebuilt or opened. 

DO NOT operate damaged equipment: Whenever it is possible that the safety protection 
features built into this product have been impaired, either through physical damage, excessive 
moisture, or any other reason, REMOVE POWER and do not use the product until the safe 
operation can be verified by service-trained personnel. If necessary, return the product to 
Dewesoft sales and service office for service and repair to ensure that safety features are 
maintained. 

If you assume a more riskless use is not provided anymore, the system has to be rendered 
inoperative and should be protected against inadvertent operation. It is assumed that a more 
riskless operation is not possible anymore if the system is damaged obviously or causes strange 
noises. the system does not work anymore. The system has been exposed to long storage in 
adverse environments. the system has been exposed to heavy shipment strain. 

Warranty void if damages caused by disregarding this manual. For consequential damages, NO 
liability will be assumed! 

Warranty void if damage to property or persons caused by improper use or disregarding the 
safety instructions. 

Unauthorized changing or rebuilding the system is prohibited due to safety and permission 
reasons (CE). 

Be careful with voltages >25 VAC or >35 VDC! These voltages are already high enough in order to 
get a perilous electric shock by touching the wiring. 

The product heats during operation. Make sure there is adequate ventilation. Ventilation slots 
must not be covered! 

Only fuses of the specified type and nominal current may be used. The use of patched fuses is 
prohibited. 

Prevent using metal bare wires! Risk of short circuit and fire hazard! 

DO NOT use the system before, during or shortly after a thunderstorm (risk of lightning and high 
energy over-voltage). An advanced range of application under certain conditions is allowed with 
therefore designed products only. For details please refer to the specifications. 

Make sure that your hands, shoes, clothes, the floor, the system or measuring leads, integrated 
circuits and so on, are dry. 

DO NOT use the system in rooms with flammable gases, fumes or dust or in adverse 
environmental conditions. 

Avoid operation in the immediate vicinity of high magnetic or electromagnetic fields, 
transmitting antennas or high-frequency generators, for exact values please refer to enclosed 
specifications. 

Use measurement leads or measurement accessories aligned with the specification of the 
system only. Fire hazard in case of overload! 

DS-GPS-CLOCK V20-2

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Summary of Contents for DS-GPS-CLOCK

Page 1: ...DS GPS CLOCK TECHNICAL REFERENCE MANUAL DS GPS CLOCK V20 2 1...

Page 2: ...11 4 7 1 3 IRIG connector 12 4 7 2 Rear Connectors 12 4 7 2 1 Multi I O Connector 13 4 7 2 2 Mini USB connector 14 4 7 2 3 SYNC connector 14 4 8 Installation 15 4 9 Connecting the DS GPS CLOCK to the...

Page 3: ...uctions 24 6 1 Safety symbols in the manual 24 6 2 General Safety Instructions 24 6 2 1 Environmental Considerations 25 6 2 2 Product End of Life Handling 25 6 2 3 System and Components Recycling 25 6...

Page 4: ...bols and formats will be used throughout the document Important It gives you important information about the subject Please read carefully Hint It gives you a hint or provides additional information a...

Page 5: ...20 k Isolation 150 VDC Trigger accuracy 1 sec IRIG output specifications Supported codes IRIG code B DC Isolation None Accuracy 1 sec delay to GPS PPS GPS specifications General 12 channel L1 frequenc...

Page 6: ...pecifications Operation temperature 5 C to 70 C Storage temperature 20 C to 85 C Humidity 10 to 80 non condensing Dimensions W x D x H 133 x 104 x 43 mm 5 23 x 4 1 x 1 7 in Weight approx 330 g 0 72 lb...

Page 7: ...source This allows completely synchronized data acquisition of multiple systems whether they are mobile or stationary Additionally the DS GPS CLOCK can also be used as an IRIG time code generator outp...

Page 8: ...clock the programmable clock divider generates the clock frequency for the standard data acquisition system which is being output on the 9 pin DSUB connector or 4 pin Lemo connector 4 2 IRIG based ope...

Page 9: ...all round view to the sky Allow the GPS to map the satellites for at least 20 to 30 minutes The GPS builds up the Ephemeris data on each satellite which is stored in a non volatile memory so that futu...

Page 10: ...the synchronization of the system LEMO SYNC CBL FGG00050 0500N2 2xFGG 00 304 CLAD35ZN 0 5m USB mini cable for connecting the device to the SBOX or PC CABLE USBAmini USBBS 1 8m CABLE GLONASS RG174 ANT...

Page 11: ...LOCK TECHNICAL REFERENCE MANUAL 4 7 1 2 Aerial connector 4 7 1 3 IRIG connector DS GPS CLOCK V20 2 11 28 Image 6 SMA connector Pin Description 1 Hot 2 shield Image 7 BNC connector Pin Description 1 ou...

Page 12: ...DS GPS CLOCK TECHNICAL REFERENCE MANUAL 4 7 2 Rear Connectors Image 8 Rear Connectors DS GPS CLOCK V20 2 12 28...

Page 13: ...mage 10 MULTI I O cable DS GPS CLOCK V20 2 13 28 Image 9 DSUB 9 male connector Pin Name Description 1 n c Not Connected 2 n c Not Connected 3 CLK OUT Scan clock output 4 n c Not Connected 5 n c Not Co...

Page 14: ...YNC connector Interface connector EEG 00 304 CLL Mating connector FGG 00 304 CLAD27Z DS GPS CLOCK V20 2 14 28 Image 11 Sync connector pin out 4 pin LEMO female Pin Name Description 1 CLK Clock 2 Trigg...

Page 15: ...al 4 9 Connecting the DS GPS CLOCK to the DAQ System 4 9 1 Synchronization to system with Clock and Trigger To synchronize standard data acquisition systems a start trigger and the possibility of exte...

Page 16: ...into this directory add individual directories or remove unused directories from the box Convert the maps to jpg or bmp format before selecting them 4 10 3 Timing settings When you want to use the DS...

Page 17: ...DS GPS CLOCK TECHNICAL REFERENCE MANUAL b GPS input Image 14 GPS as external source DS GPS CLOCK V20 2 17 28...

Page 18: ...This selects the modulation type AC or DC of the IRIG input signal Output settings The check box IRIG Out enables the output of the internally generated IRIG signal on the BNC connector of the DSCLOCK...

Page 19: ...speed for getting the displacement Only speed levels above 0 5 km h are used to calculate the distance Used sat Numbers of satellites used for calculation of position and speed Current sec Seconds si...

Page 20: ...the screen A green clock next to this time indicates that the DS GPS CLOCK is locked to the GPS or IRIG time whereas a red clock with additional Sync Lost warning indicates that the DS GPS CLOCK does...

Page 21: ...acquisition In this example the drift of the oscillator is smaller than the allowed 2 ms fixed A This state shows the normal operation The internal clock is synchronized to the GPS IRIG once per secon...

Page 22: ...cally sets the data acquisition hardware to external clocking for receiving the sample frequency out of the DS GPS CLOCK In addition each measurement starts synchronized with the PPS signal The time i...

Page 23: ...needs to be calibrated at regular intervals The standard norm across nearly every industry is annual calibration Before your Dewesoft data acquisition system is delivered it is calibrated Detailed cal...

Page 24: ...e logo When used in text representing the company product or technology name the sign is not used The Dewesoft triangle logo is a registered trademark but the sign is not used in the visual representa...

Page 25: ...Use this system under the terms of the specifications only to avoid any possible danger Read your manual before operating the system Observe local laws when using the instrument DO NOT touch internal...

Page 26: ...d obviously or causes strange noises the system does not work anymore The system has been exposed to long storage in adverse environments the system has been exposed to heavy shipment strain Warranty...

Page 27: ...as well as the security advice of the connected systems This product has left the factory in safety related flawlessness and in proper condition In order to maintain this condition and guarantee safe...

Page 28: ...S CLOCK TECHNICAL REFERENCE MANUAL 7 Version History Revision number 57 Last modified Wed 04 Sep 2013 11 02 DS GPS CLOCK V20 2 28 28 Doc Version Date dd mm yyyy Notes 1 0 0 04 09 2013 initial version...

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