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PPS-2RM-B 

1 PPS GENERATOR 

OPERATING MANUAL 

 

 

 

 

 

 

 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPECTRADYNAMICS, INC  •  1849 Cherry St. Unit 2.  •  Louisville, CO  80027 

Phone: (303) 665-1852   •  Fax: (303) 604-6088 

   www.spectradynamics.com 

 

S

PECTRA

D

YNAMICS

I

NC

 

Summary of Contents for PPS-2RM-B

Page 1: ...PPS 2RM B 1 PPS GENERATOR OPERATING MANUAL SPECTRADYNAMICS INC 1849 Cherry St Unit 2 Louisville CO 80027 Phone 303 665 1852 Fax 303 604 6088 www spectradynamics com SPECTRADYNAMICS INC ...

Page 2: ...PPS 2RM B 1 PPS Generator Operating Manual Copyright 2021 SpectraDynamics Inc All rights reserved PPS 2RM B R00 2021 MD ...

Page 3: ...ents 1 0 Introduction 1 2 0 Safety and preparation for use 2 2 1 Electrical 2 2 2 Instrument 4 3 0 Front panel description 5 4 0 Back panel description 6 5 0 Operation 7 6 0 Specifications 8 7 0 Warranty 9 ...

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Page 5: ... 75 ohm cables The channel to channel delay differences are less than 500 ps The pulse per second generators are available in a 1U full rack mount enclosure that operate on 100 to 240 VAC Optional DC operation option is available for all models upon request PPS Options Part Number Description AC Operation DC Operation OPTION PPS 2RM A One generator two outputs Rear panel connectors PPS 2RM A DC On...

Page 6: ...operation Only replace fuses with the same type and specifications AC Power The instrument has a detachable three wire power cord for connection to a grounded AC power source The enclosure of the unit is directly connected to the outlet ground to protect against electrical shock Always use an outlet with a protective ground and do not disable this safety mechanism Detaching the AC power cord is th...

Page 7: ...e instrument and voids all warranties Please note that the power return pin 4 is NOT connected to the instrument case ground internally however both ground connections pin 4 and pin 6 are available at the DC power connector and may be connected together at this point The following specifications should be used to ensure optimum performance DC Supply voltage 12 to 36 VDC 2 Amps Line regulation 0 05...

Page 8: ...tings The PPS 2RM B pulse generator can be configured for different pulse widths The default configuration for the unit is 51 2 us pulse width To change the pulse width selection the unit must be unplugged from the power source Remove ONLY the top cover of the unit Locate the DIP switch labeled S5 on the module s to be configured The pulse width of the generator is a multiple of the clock period a...

Page 9: ...1 LED The LED will flash on the rising edge of the 1 PPS external synchronization signal from the first module EXT PPS2 LED The LED will flash on the rising edge of the 1 PPS external synchronization signal from the second module PPS1 LED The LED will flash on the rising edge of the 1 PPS output signal from the firts PPS generator module PPS2 LED The LED will flash on the rising edge of the 1 PPS ...

Page 10: ...d to an external 1 PPS signal Warning After a synchronization event this switch should be returned to the off or down position to prevent accidental synchronization Trigger When synchronization is enabled and a 1 PPS signal is present on the Ext 1 PPS input the 1 PPS synchronization event can be triggered by the push button Only one synchronization will occur for each trigger Phase Selects the ref...

Page 11: ...n the front panel will flash on the rising edge of each pulse To synchronize the output pulses to an external event connect the external reference pulse signal to the input labeled Ext 1 PPS on the back panel Enable the synchronization sequence by moving the Enable switch to the Enable position The Trigger button will arm the synchronization sequence to occur on the next rising edge at the Ext 1 P...

Page 12: ...MIN TYP MAX UNITS Rise time 10 90 1 5 2 ns Fall time 10 90 1 5 2 ns Differential delay Channel Channel 200 500 ps Impedance input output 50 10 Ohms Input High Level Input Low Level Input signal into 50 ohm load Input signal into 50 ohm load 2 0 7 5 0 8 V Output High Level Output Low Level 50 ohm load 50 ohm load 3 4 0 1 5 0 2 V Input Signal Level 1 MHz 5 MHz and 10 MHz 0 7 13 dBm External Sync Err...

Page 13: ...ion or any liability for direct indirect or consequential damages or delay Any improper use operation beyond capacity substitution of parts not approved by SDI or any alteration or repair by others in such manner as in SDI s reasonable judgement affects the product materially and adversely shall void this warranty No employee or representative of SDI is authorized to change this warranty in any wa...

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Page 15: ...n voltage limits 2014 30 EU The Electromagnetic Compatibility Directive and its amending directives 2011 65 EU of the European Parliament and of the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment Standards EN 55011 2009 A1 2010 Product family standard for Industrial Scientific and Medical ISM equipment EN 61010 1 2010 Saf...

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