Pinouts

The connectors to the outside of the Bravo Interlock are as follows: (Note: Pin numbers are correct regardless of the orientation of the observer)

Main Input 1

1. CAR Cryo 5V TTL

2. Shorted to 6

3. Ground

4. Shorted to 5

5. SF Cryo 5V TTL

6. Ground

7. 24V to LC Interlock

8. LC Interlock Return

9. Shorted 15

10. Shorted 13

11. 24V to BC Interlock

12. BC Interlock Return

Main Input 2

1. 24V to GC Interlock

2. GC Interlock Return

3. 24V to SF Cryo Monitor

4. 24V to CAR Cryo Monitor

5. 24V to Sources/Dopant H2O Flow Monitor

6. Sources H2O Flow Monitor Interlock Return

7. SF Cryo Monitor Interlock Return

8. CAR Cryo Monitor Interlock Return

9. Ground to Sources/Dopant H2O Flow Monitor

10. NC

11. Analog from Sources H2O Flow Monitor Voltage

12. Analog from SF H2O Flow Monitor Voltage

13. Ground to SF H2O Flow Monitor

14. 24V to SF H2O Flow Monitor

15. NC

16. SF H2O Flow Monitor Interlock Return

Cryo Power (120V) (Out)

1. SF Cryo 120V

2. SF Cryo Return

3. CAR Cryo 120V

4. CAR Cryo Return

H2O Flow Analog (Out)

1. SF H2O Flow Monitor Voltage

2. Sources H2O Flow Monitor Voltage

3. Dopant Flow Monitor Voltage

4. Ground

Dopant H2O (Input)

1. Analog from Dopant Flow Monitor Voltage

2. Ground

3. Dopant H2O Flow Monitor Interlock Return

4. NC

Interlock to Eurotherms (Out)

1. Pressure + (Red)

2. Pressure Return (Black)

3. H2O + (Green)

4. H2O Return (White)

Warning Light (120V) (Out)

1. Warning Light 120V

2. Warning Light Return

3. NC

4. NC

Bravo Interlock Circuit

Open

Bravo Interlock PCB