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3

Pin

Function

Pin

Function

1   

+3 V

23   

Reserved

2   

3 V

24   

Reserved

3   

Spare Bus

25   

Reserved

4   

Reserved Bus

26   

Spare

5   

Coaxial

27   

Spare

6   

Coaxial

*28   

+24 V

7   

Coaxial

*29   

24 V

8   

200 V dc

30   

Spare Bus

9   

Spare

31   

Spare

*10   

+6 V

32   

Spare

*11   

6 V

*33   

117 V ac (Hot)

12   

Reserved Bus

*34   

Power Return Ground

13   

Spare

35   

Reset (Scaler)

14   

Spare

36   

Gate

15   

Reserved

37   

Reset (Auxiliary)

*16   

+12 V

38   

Coaxial

*17   

12 V

39   

Coaxial

18   

Spare Bus

40   

Coaxial

19   

Reserved Bus

*41   

117 V ac (Neutral)

20   

Spare

*42   

High-Quality Ground

21   

Spare

G   

Ground Guide Pin

22   

Reserved

Pins marked (*) are installed and wired in ORTEC’s Model 4001A and
4001C Modular System Bins.

Bin/Module Connector Pin Assignments for Standard

Nuclear Instrument Modules per DOE/ER-0457T

Summary of Contents for FTA420C

Page 1: ...Model FTA820A Octal Fast Timing Amplifier and Model FTA420C Quad Fast Timing Amplifier Operating Manual Printed in U S A ORTEC Part No 740350 1002 Manual Revision D ...

Page 2: ...o that a Return Authorization Number can be assigned to the unit Also ORTEC must be informed either in writing by telephone 865 482 4411 or by facsimile transmission 865 483 2133 of the nature of the fault of the instrument being returned and of the model serial and revision Rev on rear panel numbers Failure to do so may cause unnecessary delays in getting the unit repaired The ORTEC standard proc...

Page 3: ...ETY INSTRUCTIONS AND SYMBOLS iv SAFETY WARNINGS AND CLEANING INSTRUCTIONS v 1 DESCRIPTION 1 2 SPECIFICATIONS 1 2 1 PERFORMANCE 1 2 2 ELECTRICAL AND MECHANICAL 1 3 INSTALLATION 1 4 CIRCUIT DESCRIPTION 2 5 MAINTENANCE 2 ...

Page 4: ...s a hazard that could result in bodily harm if the safety instruction is not observed CAUTION Indicates a hazard that could result in property damage if the safety instruction is not observed Please read all safety instructions carefully and make sure you understand them fully before attempting to use this product In addition the following symbol may appear on the product ATTENTION Refer to Manual...

Page 5: ...the instrument during external cleaning use only enough liquid to dampen the cloth or applicator SAFETY WARNINGS AND CLEANING INSTRUCTIONS Cleaning Instructions To clean the instrument exterior Unplug the instrument from the ac power supply Remove loose dust on the outside of the instrument with a lint free cloth Remove remaining dirt with a lint free cloth dampened in a general purpose detergent ...

Page 6: ...vi ...

Page 7: ...0A 8 FTA420C 4 RISE TIME 1 ns NOISE 20 µV rms equivalent input noise BANDWIDTH 10 to 350 MHz PROPAGATION DELAY 30 psvariation between channels OUTPUT RANGE 0 to 5 V with 50 load INPUTS One per channel LEMO connector input impedance 50 OUTPUTS One per channel LEMO connector 0 to 5V output with a 50 load Output impedance 1 2 2 ELECTRICAL AND MECHANICAL POWER REQUIRED FTA820A 12 V 400 mA FTA420C 12 V...

Page 8: ...he other Common Emitter stagesoperated in a similar manner with specific component values set for optimum gain distribution and rise time The final two Common Emitter stages 1Q3 and 1Q4 have variable peaking capacitors 1C20 and 1C21 which are set in test to give an overall rise time of 1 ns Transistor 1Q5 is connected in the Emitter Follower configuration and provides excellent output drive capabi...

Page 9: ...ved Bus 34 Power Return Ground 13 Spare 35 Reset Scaler 14 Spare 36 Gate 15 Reserved 37 Reset Auxiliary 16 12 V 38 Coaxial 17 12 V 39 Coaxial 18 Spare Bus 40 Coaxial 19 Reserved Bus 41 117 V ac Neutral 20 Spare 42 High Quality Ground 21 Spare G Ground Guide Pin 22 Reserved Pins marked are installed and wired in ORTEC s Model 4001A and 4001C Modular System Bins Bin Module Connector Pin Assignments ...

Page 10: ...4 ...

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