American Magnetics 420 Power Supply Programmer - Manual (Page 123)

Rev. 7 105
Appendix
A.1 Magnet Station Connectors
The two 25-pin D-sub female Magnet Station Connectors are identically
wired and connected pin-for-pin internally. Spare wires may be used for
custom coil taps or other signals.
The connectors provide an interface for connecting a single integrated
instrumentation cable from the magnet support stand to the Model 420.
The Model 420 can then be used to distribute the signals to the
Table A-1. Connectors J7A and J7B pin definitions.
Pin Function Pin Function
1 LHe Sensor I+ (Red) 14 Spare
2 LHe Sensor I
−
(Black) 15 Spare
3 LHe Sensor V
−
(Yellow) 16 Spare
4 LHe Sensor V+ (Blue) 17 Spare
5 Temperature Sensor I+ (Red) 18 External Switch
Heater Current
a
a. See discussion on page 61 for further details on the use of an optional external power
supply for heating the persistent switch.
6 Temperature Sensor I
−
(Black) 19 External Switch
Heater Current
7 Temperature Sensor V
−
(Yellow) 20 Spare
8 Temperature Sensor V+ (Blue) 21 Spare
9 Persistent Switch Heater (Red) 22 Spare
10 Persistent Switch Heater (Black) 23 Spare
11 Magnet Voltage Tap V+ (Yellow) 24 Spare
12 Magnet Voltage Tap V
−
(Blue) 25 Spare
13 Spare
H6BI@UÃTU6UDPI
8PII@8UPST
E&6
E&7