INSTRUCTIONS MODEL AV-144A2-PS. TTL IN, +10V OUT, into 50Ω, 10 ns RISE TIME DC-COUPLED NON-LINEAR AMPLIFIER SERIAL NUMBER:

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1 V T E H E L E T R O S Y S T E M S L T D. N N O S E O N D W V E F O R M E L E T R O N I S S I N E 9 7 P.O. OX OGDENSURG, NY U.S.. 90 TEL: (US & anada) or 87 (Intl) FX: (US & anada) or 879 (Intl) info@avtechpulse.com X OX 0, LD MERIVLE OTTW, ONTRIO ND K H INSTRUTIONS MODEL VPS TTL IN, 0V OUT, into 0Ω, 0 ns RISE TIME DOUPLED NONLINER MPLIFIER SERIL NUMER:

2 WRRNTY vtech Electrosystems Ltd. warrants products of its manufacture to be free from defects in material and workmanship under conditions of normal use. If, within one year after delivery to the original owner, and after prepaid return by the original owner, this vtech product is found to be defective, vtech shall at its option repair or replace said defective item. This warranty does not apply to units which have been dissembled, modified or subjected to conditions exceeding the applicable specifications or ratings. This warranty is the extent of the obligation assumed by vtech with respect to this product and no other warranty or guarantee is either expressed or implied. TEHNIL SUPPORT Phone: (US & anada) or 87 (International) Fax: (US & anada) or 879 (International) World Wide Web:

3 TLE OF ONTENTS WRRNTY... TEHNIL SUPPORT... TLE OF ONTENTS... INTRODUTION... SPEIFITIONS... REGULTORY NOTES... F PRT 8... E DELRTION OF ONFORMITY... DIRETIVE 00/9/E (RoHS)...7 DIRETIVE 00/9/E (WEEE)...7 POWER SUPPLY REGULTORY NOTES...8 INSTLLTION...9 VISUL HEK...9 POWER RTINGS...9 ONNETION TO THE POWER SUPPLY...9 PROTETION FROM ELETRI SHOK...0 ENVIRONMENTL ONDITIONS... FUSES... FUSE REPLEMENT... D FUSE REPLEMENT... FUSE RTINGS... FRONT PNEL ONTROLS... RER PNEL ONTROLS... GENERL INFORMTION...7 SI ONTROL...7 INPUT IMPEDNE...7 MEHNIL INFORMTION...8 TOP OVER REMOVL...8 RK MOUNTING...8 ELETROMGNETI INTERFERENE...8 MINTENNE...9 REGULR MINTENNE...9 LENING...9 WIRING DIGRMS...0

4 WIRING OF POWER...0 P 8N LOW VOLTGE POWER SUPPLY, /... P 8N LOW VOLTGE POWER SUPPLY, /... P 8N LOW VOLTGE POWER SUPPLY, /... MIN WIRING... PERFORMNE HEK SHEET... Manual Reference: /fileserver/officefiles/instructword/av/vps,ed.odt. Last modified September, 0. opyright 0 vtech Electrosystems Ltd, ll Rights Reserved.

5 INTRODUTION The Model VPS Dcoupled nonlinear amplifier accepts TTLlevel input pulses (i.e., low = 0V, high = to V), and generates 0V output pulses. The output pulse width is nominally equal to the input pulse width. The output amplitude is not adjustable. The input impedance is kω (or is equal to 0Ω for units with the Z0 option). The output will drive loads of 0 Ω. The output rise and fall times are 0 ns or less. SPEIFITIONS Model: VPS Output amplitude (R L 0 Ω): 0V Input amplitude: TTL logic levels (LOW = 0 V, HIGH = to Volts) Rise, fall time (0%80%): 0ns Maximum PRF: 0 MHz Input impedance: Standard: kω. With Z0 option: 0Ω. Output impedance: < Ω Overshoot: % Prime power: 00 0V, 0 0 Hz onnectors: SM Dimensions: 00 x x 7 mm (.9 x 8. x.8 )

6 REGULTORY NOTES F PRT 8 This device complies with part 8 of the F rules for nonconsumer industrial, scientific and medical (ISM) equipment. This instrument is enclosed in a rugged metal chassis and uses a filtered power entry module (where applicable). The main output signal is provided on a shielded connector that is intended to be used with shielded coaxial cabling and a shielded load. Under these conditions, the interference potential of this instrument is low. If interference is observed, check that appropriate wellshielded cabling is used on the output connectors. ontact vtech (info@avtechpulse.com) for advice if you are unsure of the most appropriate cabling. lso, check that your load is adequately shielded. It may be necessary to enclose the load in a metal enclosure. If any of the connectors on the instrument are unused, they should be covered with shielded metal dust caps to reduce the interference potential. This instrument does not normally require regular maintenance to minimize interference potential. However, if loose hardware or connectors are noted, they should be tightened. ontact vtech (info@avtechpulse.com) if you require assistance. E DELRTION OF ONFORMITY We vtech Electrosystems Ltd. P.O. ox 0, LD Merivale Ottawa, Ontario anada K H declare that this pulse generator meets the intent of Directive 00/08/EG for Electromagnetic ompatibility. ompliance pertains to the following specifications as listed in the official Journal of the European ommunities: EN 008 Emission EN 008 Immunity

7 and that this pulse generator meets the intent of the Low Voltage Directive 7//EE as amended by 9/8/EE. ompliance pertains to the following specifications as listed in the official Journal of the European ommunities: 7 EN 00:00 Safety requirements for electrical equipment for measurement, control, and laboratory use DIRETIVE 00/9/E (RoHS) This instrument is exempt from Directive 00/9/E of the European Parliament and of the ouncil of 7 January 00 on the Restriction of the use of certain Hazardous Substances (RoHS) in electrical and electronic equipment. Specifically, vtech instruments are considered "Monitoring and control instruments" (ategory 9) as defined in nnex of Directive 00/9/E. The Directive 00/9/E only applies to Directive 00/9/E categories 7 and 0, as stated in the "rticle Scope" section of Directive 00/9/E. DIRETIVE 00/9/E (WEEE) European customers who have purchased this equipment directly from vtech will have completed a WEEE Responsibility greement form, accepting responsibility for WEEE compliance (as mandated in Directive 00/9/E of the European Union and local laws) on behalf of the customer, as provided for under rticle 9 of Directive 00/9/E. ustomers who have purchased vtech equipment through local representatives should consult with the representative to determine who has responsibility for WEEE compliance. Normally, such responsibilities with lie with the representative, unless other arrangements (under rticle 9) have been made. Requirements for WEEE compliance may include registration of products with local governments, reporting of recycling activities to local governments, and financing of recycling activities.

8 POWER SUPPLY REGULTORY NOTES 8 This instrument converts the input power to the D voltage that powers the internal circuitry of this instrument using a Tamura D0SD0 switching power supply. ccording to the manufacturer, the Tamura D0SD0 has the following certifications: UL090 IE090 S. No. 090 EN090 and is compliant with: EN000 EN000 Level EN000 Level (ir Only) EN000 Level EN000 Level EN000 ISPR and F Part lass (conducted)

9 INSTLLTION 9 VISUL HEK fter unpacking the instrument, examine to ensure that they have not been damaged in shipment. Visually inspect all connectors, knobs, and handles. onfirm that a power cord and an instrumentation manual (this manual), are with the instrument. If the instrument has been damaged, file a claim immediately with the company that transported the instrument. POWER RTINGS This instrument is intended to operate from 00 0 V, 0 0 Hz. The maximum power consumption is 7 Watts. Please see the FUSES section for information about the appropriate and D fuses. This instrument is an Installation ategory II instrument, intended for operation from a normal singlephase supply. ONNETION TO THE POWER SUPPLY n IE0 threepronged recessed male socket is provided on the back panel for power connection to the instrument. One end of the detachable power cord that is supplied with the instrument plugs into this socket. The other end of the detachable power cord plugs into the local mains supply. Use only the cable supplied with the instrument. The mains supply must be earthed, and the cord used to connect the instrument to the mains supply must provide an earth connection. (The supplied cord does this.) Warning: Failure to use a grounded outlet may result in injury or death due to electric shock. This product uses a power cord with a ground connection. It must be connected to a properly grounded outlet. The instrument chassis is connected to the ground wire in the power cord. The table below describes the power cord that is normally supplied with this instrument, depending on the destination region:

10 0 Destination Region Description Option Manufacturer Part Number United Kingdom, Hong Kong, Singapore, Malaysia ustralia, New Zealand ontinental Europe, Korea, Indonesia, Russia North merica, Taiwan Switzerland South frica, India Japan Israel hina S, 0V, 0 Hz S :000, 00V, 0 Hz European EE 7/7 Schuko 0V, 0 Hz NEM, 0V, 0 Hz SEV 0, 0V, 0 Hz SS, 00V, 0 Hz JIS 80, 00V, 00 Hz SI, 0V, 0 Hz G 00, 0V, 0 Hz 00 Qualtek 7000E0 0 Qualtek Qualtek 00D0 0 Qualtek Qualtek 7800E0 7 Volex H 0 8 Qualtek Qualtek Volex 7H 0 PROTETION FROM ELETRI SHOK Operators of this instrument must be protected from electric shock at all times. The owner must ensure that operators are prevented access and/or are insulated from every connection point. In some cases, connections must be exposed to potential human contact. Operators must be trained to protect themselves from the risk of electric shock. This instrument is intended for use by qualified personnel who recognize shock hazards and are familiar with safety precautions required to avoid possibly injury. In particular, operators should:. Keep exposed highvoltage wiring to an absolute minimum.. Wherever possible, use shielded connectors and cabling.. onnect and disconnect loads and cables only when the instrument is turned off.. Keep in mind that all cables, connectors, oscilloscope probes, and loads must have an appropriate voltage rating.. Do not attempt any repairs on the instrument, beyond the fuse replacement procedures described in this manual. ontact vtech technical support (see page for contact information) if the instrument requires servicing. Service is to be performed solely by qualified service personnel.

11 ENVIRONMENTL ONDITIONS This instrument is intended for use under the following conditions:. indoor use;. altitude up to 000 m;. temperature to 0 ;. maximum relative humidity 80 % for temperatures up to decreasing linearly to 0 % relative humidity at 0 ;. Mains supply voltage fluctuations up to ±0 % of the nominal voltage;. no pollution or only dry, nonconductive pollution.

12 FUSES This instrument contains four fuses. ll are accessible from the rearpanel. Two protect the prime power input, and two protect the internal D power supplies. The locations of the fuses on the rear panel are shown in the figure below: Fuses # and # ( fuses) Fuse # (D fuse) Fuse # (D fuse) FUSE REPLEMENT To physically access the fuses, the power cord must be detached from the rear panel of the instrument. The fuse drawer may then be extracted using a small flathead screwdriver, as shown below: Pry out the fuse drawer using a screwdriver. Fuse Drawer

13 D FUSE REPLEMENT The D fuses may be replaced by inserting the tip of a flathead screwdriver into the fuse holder slot, and rotating the slot counterclockwise. The fuse and its carrier will then pop out. FUSE RTINGS The following table lists the required fuses: Fuses Nominal Mains Voltage #, # () 000V # (D) N/ # (D) N/ Rating 0., 0V, TimeDelay 0., 0V, TimeDelay ase Size Recommended Replacement Part Littelfuse Part DigiKey Stock Number Number 0 mm 08.00HXP FND 0 mm 08.00HXP FND Not used. spare 0. fuse is installed here. The recommended fuse manufacturer is Littelfuse ( Replacement fuses may be easily obtained from DigiKey ( and other distributors.

14 FRONT PNEL ONTROLS. POWER Switch. This is the main power switch. When turning the instrument on, there may be a delay of several seconds before the instrument appears to respond.. OVERLOD Indicator. When the instrument is powered, this indicator is normally green, indicating normal operation. If this indicator is yellow, an internal automatic overload protection circuit has been tripped. If the unit is overloaded (by operating at an exceedingly high duty cycle or by operating into a very low impedance), the protective circuit will disable the output of the instrument and turn the indicator light yellow. The light will stay yellow (i.e. output disabled) for about seconds after which the instrument will attempt to reenable the output (i.e. light green) for about second. If the overload condition persists, the output will be disabled again (i.e. light yellow) for another seconds. If the overload condition has been removed, the instrument will resume normal operation. This overload indicator is only likely to come on in two situations: riefly at startup. This is not a cause for concern. When the load impedance is too low (< 0 Ω). In this case, turn off the instrument and connect the proper load.. IN onnector. The TTLlevel input (i.e., low = 0V, high = to V) is applied to this SM connector. The input impedance is kω (or is equal to 0Ω for units with the Z0 option).

15 . OUT onnector. This SM connector provides the main output signal. The output is an amplified version of the input on ().

16 RER PNEL ONTROLS. POWER INPUT. n IE0 threepronged recessed male socket is provided on the back panel for power connection to the instrument. One end of the detachable power cord that is supplied with the instrument plugs into this socket.. FUSE DRWER. The two fuses that protect the input are located in this drawer. Please see the FUSES section of this manual for more information.. D FUSES. These two fuses protect the internal D power supplies. Please see the FUSES sections of this manual for more information.

17 GENERL INFORMTION 7 SI ONTROL The VPS amplifier accepts TTLlevel input pulses (i.e., low = 0V, high = to V), and generates 0V output pulses. The output pulse width is nominally equal to the input pulse width. The output amplitude is not adjustable. The required voltage input signal is applied at the IN connector. This is illustrated below: INPUT VOLTGE, ON "IN" ONNETOR V to V 0V 0V OUTPUT VOLTGE, ON "OUT" ONNETOR 0V INPUT IMPEDNE The input impedance of standard models is kω. Units with the Z0 option has a reduced input impedance of 0Ω. On standard models, the cabling to the input should be kept as short as possible. It is possible that transmission line reflections may occur on the input cabling due to impedance mismatches. The magnitude of the reflections may be enough to trigger the TTL input circuitry. If this false triggering occurs, consider converting the input impedance to 0Ω by installing a 0Ω feedthrough terminator on the input connect. The Pasternack model PE0 is an example of a suitable terminator ( The TTL signal source must be capable of driving 0Ω in this case, of course, and 0Ω coaxial cabling should be used. This arrangement will prevent transmission line reflections.

18 MEHNIL INFORMTION 8 TOP OVER REMOVL If necessary, the interior of the instrument may be accessed by removing the four Phillips screws on the top panel. With the four screws removed, the top cover may be slid back (and off). lways disconnect the power cord and allow the instrument to sit unpowered for 0 minutes before opening the instrument. This will allow any internal stored charge to discharge. There are no useradjustable internal circuits. For repairs other than fuse replacement, please contact vtech (info@avtechpulse.com) to arrange for the instrument to be returned to the factory for repair. Service is to be performed solely by qualified service personnel. aution: High voltages are present inside the instrument during normal operation. Do not operate the instrument with the cover removed. RK MOUNTING rack mounting kit is available. The R rack mount kit may be installed after first removing the one Phillips screw on the side panel adjacent to the front handle. ELETROMGNETI INTERFERENE To prevent electromagnetic interference with other equipment, all used outputs should be connected to shielded loads using shielded coaxial cables. Unused outputs should be terminated with shielded coaxial terminators or with shielded coaxial dust caps, to prevent unintentional electromagnetic radiation. ll cords and cables should be less than m in length.

19 MINTENNE 9 REGULR MINTENNE This instrument does not require any regular maintenance. On occasion, one or more of the four rearpanel fuses may require replacement. ll fuses can be accessed from the rear panel. See the FUSES section for details. LENING If desired, the interior of the instrument may be cleaned using compressed air to dislodge any accumulated dust. (See the TOP OVER REMOVL section for instructions on accessing the interior.) No other cleaning is recommended.

20 N G L WIRING OF POWER WIRING DIGRMS W R N I N G D o n o t a t t e m p t a n y r e p a i r s o n t h i s i n s t r u m e n t b e y o n d t h e f u s e r e p l a c e m e n t p r o c e d u r e s d e s c r i b e d i n t h e m a n u a l. o n t a c t v t e c h i f t h e i n s t r u m e n t r e q u i r e s s e r v i c i n g. S e r v i c e i s t o b e p e r f o r m e d s o l e l y b y q u a l i f i e d s e r v i c e p e r s o n n e l. M a in s c i r c u it s h a z a r d o u s li v e. L K W H I T E X P O W E R S W I T H S W N D ( W I N D U S T R I E S G R S ) D D P 0 D K E Y P D O R D ( U N I T S O N L Y ) Y T O L D T O P 0 8 K R O Y G T O E N O D E R T O L D 0 D F R O N T R E R P S V S N S V S N S V S N S V S N S R T N F I L V S H R N V S H R L V V R T N G V R T N V 8 7 R E D G G b a b a G M o l e x " x 0. 0 " R O W N L U E S a f e t y e a r t h g r o u n d / P r im a r y e a r t h g r o u n d / P r o t e c t iv e c o n d u c t o r t e r m i n a l. D T E M P O V U X D 0 S D 0 G X O R O M E G G P O W E R E N T R Y M O D U L E P U R G R N J 0 V, N O O L O V, N O O L O V N S Y V R E G V V V N S Y V R E G 0 V J 0 V V V V V V V J 0 W G, N O O L O P O S O L O O L O N E G O L O / I N J 0 O R W G J 8 P N K E X T N P S D G N N O U T V O L O J N N D D N N D H S J 0 W G W G 0 W G J 9 F N K J 7 M E R J G R E E N P 8 N D P 8 N S I M P L I F I E D M G R N F N N O T H R N E S S E D P N D F N M o le x " x 0. 0 ". M o le x r i n g t e r m i n a l, # 8. I n s t a l l g r e e n / y e l lo w w i r e s a t b o t t o m o f s t a c k, c lo s e s t t o w a ll. h a s s i s g r o u n d p o s t. S e c o n d a r y e a r t h g r o u n d. D F N U S E T I E D O W N P O I N T O N P 8 N W H T L K R E D X V L E D M O U N T T i t l e Q H R N E S S, F O R P 8 N, T M U R D M G R N D P 9 N D L E D D a t e R e v i s i o n S e p 0 G Z : \m j c f i l e s \ p c b \ 8 \ s w i t c h i n g 0 h z. d d b U S G E \ Q v E D.s c h

21 P 8N LOW VOLTGE POWER SUPPLY, / D D p c b 8 N _ o v p V p c b 8 N _ o v p. s c h V U P O U T # J V V 0 J 8 7 p c b 8 N _ s w i t c h i n g p c b 8 N _ s w i t c h i n g. s c h U P O U T # E X T N O U T N E G I N P N K V V M E R 0 8 V V P O U T # G R E E N P O U T # J 0 J 7 0 T i t l e D a t e L O W V O L T G E D / D P O W E R S U P P L Y D e c R e v i s i o n Z : \m j c f i l e s \ p c b \ 8 \ s w i t c h i n g 0 h z. d d b 8 N \ p c b 8 N. s c h

22 7 8 9 X P 8N LOW VOLTGE POWER SUPPLY, / F F U S E H O L D E R D 0 J S S, O R D S, O R D S T P T E S T L O O P T P T E S T L O O P. u F L 0 0 M 0 7 u F, 0 V 9 7 u F, 0 V U D R 0 0 K u F, V ( P 9 N D ) D 7. K E u F, V ( P 9 N D ) U V i n V o u t 0 V J V V V V V V V V V 0 J 0 0 J 0 0 R 0, F O R 7 8 Y P S S. N O R M L L Y I N S T L L E D. P O U T # 7 u F, V V i n V o u t U S T R O D Y N E F E D D D L 0 M 8. u F L 0 M. u F 7 u F, V 7 u F, V V V J J u F, 0 V U 7 8 ( N O T N O R M L L Y I N S T L L E D ) 7 u F, 0 V X T I E D O W N 0 U L 0 M. u F 7 u F, V V V V V V S T R O D Y N E F E D 0 D D L 0 M. u F 9 7 u F, V V I N N / N / O U T O U T N U 8 N O T U S E D ( M K 0 ) I N I N O U T N O U T U 9 N O T U S E D ( S 0 / S 0 ) U 0 I N N / N / O U T O U T N I N I N N / N / N / N O T U S E D ( 7 u F, V ) N O T U S E D 0 N O T U S E D (. u F N OE T R ) U S E D ( 7 u JF, V ) L N O T U S E D ( 0 M ) N O R M L L Y U N U S E D N O T U S E D ( 0 ) I N I N O U T O U T J 7 N O T U S E D ( 7 u F, 0 V ) 8 N O T U S E D ( 7 u F, 0 V ) N O T U S E D ( 0 ) T i t l e D a t e D / D, N D O V E R V O L T G E P R O T E T I O N R e v i s i o n D e c Z : \m j c f i l e s \ p c b \ 8 \ s w i t c h i n g 0 h z. d d b 8 N \ p c b 8 N _ o v p.s c h

23 X 8 7 P 8N LOW VOLTGE POWER SUPPLY, / R D. K o r. 8 K O Y R X P N K L 7 K H V W R N I N G u F, V ( P 9 N D ) D E X T R 7 0, I F O L O U S E S E X T P S. N O T N O R M L L Y I N S T L L E D. S H O R T S O U T S E W H E N H R G I N G. D R U 0, I F O L O U S E S I N T P S. N O R M L L Y I N S T L L E D. F F U S E H O L D E R T P 0. u F T E S T L O O P D T P R 0 K D N 0 R O P T. Y K P S R W L R 0 0 F E T ( 0. O H M S ) R 8 W L R 0 0 F E T ( 0. O H M S ) K U 7 8 V i n 7 u F, 0 V V o u t P O U T # 0 7 u F, 0 V P O U T # P O U T # T E S T L O O P T Q 0 0 I N 9 0 N D ( S 7 0 ) H E T S I N K O P T. G R L D V I N U L T 0 S Q Z 0 R. K D 9 R Q D M P Q R 0 0 O Y K O U T I N K R 7 0 D I S L E T P O W E R O F F N 8 D 0 V D I S L E T P O W E R O N N 8 ( V L G S H V Y 0 0 m s ) D N 7 R 7 0, I F N O K. N O R M L L Y I N S T L L E D. Q Z 0 K R N E G I N R V N O U T R 7 0, I F N O K. N O R M L L Y I N S T L L E D. O P T. Q Z 0 0, I F V S W I T H E D Y O L O. N O T N O R M L L Y I N S T L L E D. R u F, V X M O U N T X M O U N T R 7 0 Q M P Q X K E Y S T O N E R K E T O P T. Q Z 0 D I S L E O L O W H E N H R G I N G. T P K ( R O L O, D J U S T ) R 9 T E S T L O O P T P T E S T L O O P 8 V R. 7 K Q M P Q R K 0 u F, V ( P 9 N D ) R 7 7 K 7 u F, V 7 0. u F D N 7 0. u F U 7 R 9 M E R 8 V 8 0 V R E S E T T R I G T H R O U T R 8 O N T 7. K D I S R. K G R E E N M ( N Y V, N O N M O S ) Q M P Q O P T u F, V ( P 9 N D ) V V V V X 0 M O U N T X T R I M P O T E S S T i t l e O V E R U R R E N T P R O T E T I O N D a t e D e c R e v i s i o n Z : \m j c f i l e s \ p c b \ 8 \ s w i t c h i n g 0 h z. d d b 8 N \ p c b 8 N _ s w i t c h i n g. s c h

24 MIN WIRING D D J 0 V, N O O L O V, N O O L O J 8 N N D D N N D H S V N S Y V R E G V V V N S Y V R E G 0 V J 0 V V V V V V V J 0 W G, N O O L O P O S O L O O L O N E G O L O / I N J 0 O R W G P N K E X T P S N N D G N O U T V O L O J J 0 W G W G 0 W G P 8 N D P 8 N H S M V, M T V N / N / N / V N / N / N / V N / N / N / N / N / I N O U T O N N I N O N N O U T T i t l e D a t e V P S S e p 0 R e v i s i o n Z : \ m j c f i l e s \ c i r c u i t s \a v x \ a m p l i f i e r s. d d b V P S \ P S W I R I N G v. s c h

25 PERFORMNE HEK SHEET