PIN BAR
- All values are including the measuring cables!
- Nomenclature:
- Greek numbers = Filter Box on the top
- Xi = Plug at the corresponding Filter Box (e.g. : VI, X3 = Plug X3 at Filter Box VI ).
- Xi:j = Pin j at Plug Xi (e.g. : VI, X3:4 = Pin 4 at Plug X3 at Filter Box VI ).
- R1/2 = Resistance between Pin 1 and 2 directly measured at a corresponding PIN BAR.
- RX3:1-2 = Resistance between Pin 1 at Plug X3 of the Filter Box and Pin 2 at the PIN BAR.
- RX3:1/2 = Resistance between Pin 1 and Pin 2 at Plug X3 of the Filter Box.
MIXING CHAMBER
There are six PIN BARS (A-F) mounted on the mixing chamber. Each consists of 16 PINS arranged in two columns.
BAR A
PIN
|
CONNECTION |
BOX |
COMMENT
|
15
|
nc |
? |
|
13
|
nc |
? |
|
11
|
nc |
? |
|
9
|
nc |
? |
|
7
|
nc |
? |
|
5
|
nc |
? |
|
3
|
nc |
? |
|
1
|
nc |
? |
|
PIN
|
CONNECTION |
BOX |
COMMENT
|
16
|
nc |
? |
|
14
|
nc |
? |
|
12
|
nc |
? |
|
10
|
nc |
? |
|
8
|
nc |
? |
|
6
|
nc |
? |
|
4
|
nc |
? |
|
2
|
nc |
? |
|
BAR B
PIN
|
CONNECTION |
BOX |
COMMENT
|
15
|
nc |
? |
|
13
|
nc |
? |
|
11
|
nc |
? |
|
9
|
nc |
? |
|
7
|
nc |
? |
|
5
|
nc |
? |
|
3
|
nc |
? |
|
1
|
nc |
? |
|
PIN
|
CONNECTION |
BOX |
COMMENT
|
16
|
nc |
? |
|
14
|
nc |
? |
|
12
|
nc |
? |
|
10
|
nc |
? |
|
8
|
nc |
? |
|
6
|
nc |
? |
|
4
|
nc |
? |
|
2
|
nc |
? |
|
BAR C
- No connection to BOX I, X7-X11!
- Maybe connected to PLUG III?
- NO GROUND!
PIN
|
CONNECTION |
BOX |
COMMENT
|
15
|
nc |
? |
|
13
|
nc |
? |
|
11
|
nc |
? |
|
9
|
T.P. 9-10 |
? |
leads through capillary
|
7
|
CT MC |
? |
yellow s.t.
|
5
|
CT MC |
? |
5-8 leads trough textile tube
|
3
|
nc |
? |
|
1
|
nc |
? |
|
PIN
|
CONNECTION |
BOX |
COMMENT
|
16
|
nc |
? |
|
14
|
nc |
? |
|
12
|
nc |
? |
|
10
|
T.P. 9-10 |
? |
capillary leads to 1K-pot
|
8
|
CT MC |
? |
yellow s.t. + black marked
|
6
|
CT MC |
? |
black marked
|
4
|
nc |
? |
|
2
|
nc |
? |
|
BAR D
PIN
|
CONNECTION |
BOX |
COMMENT
|
15
|
nc |
? |
|
13
|
nc |
? |
|
11
|
nc |
? |
|
9
|
nc |
? |
|
7
|
nc |
? |
|
5
|
nc |
? |
|
3
|
nc |
? |
|
1
|
nc |
? |
|
PIN
|
CONNECTION |
BOX |
COMMENT
|
16
|
nc |
? |
|
14
|
nc |
? |
|
12
|
nc |
? |
|
10
|
nc |
? |
|
8
|
nc |
? |
|
6
|
nc |
? |
|
4
|
nc |
? |
|
2
|
nc |
? |
|
BAR E
- Assignment of pins at Bar E. The number of each pin corresponds with that of the AMP-BOX.
- Resistance between Box VI and Pins: RVI-E ~ 280
- All values are including measuring cables!
- NO GROUNDS!
PIN
|
CONNECTION |
BOX |
COMMENT
|
1
|
ET ST |
VI, X1:1 |
|
2
|
ET ST |
VI, X1:2 |
|
3
|
FPD |
VI, X2:1 |
|
4
|
FPD |
VI, X2:3 |
|
5
|
FPD Degauss |
VI, X3:1 |
R5/23=155.4
|
6
|
nc |
VI, X3:2 |
|
7
|
nc |
VI, X4:1 |
|
8
|
HZ(?) |
VI, X4:2 |
R8/26=1k , T.P. leads to strange heat sink at 1K
|
PIN
|
CONNECTION |
BOX |
COMMENT
|
19
|
ET ST |
VI, X1:3 |
|
20
|
ET ST |
VI, X1:4 |
|
21
|
FPD |
VI, X2:4 |
|
22
|
FPD |
VI, X2:3 |
|
23
|
FPD Degauss |
VI, X3:4 |
RX3:1-4=714
|
24
|
nc |
VI, X3:3 |
|
25
|
nc |
VI, X4:4 |
|
26
|
HZ(?) |
VI, X4:3 |
RX3:1-4=1.65k
|
BAR F
- Resistance between Pin 6,7 and 8 is measured with connected Filterbox.
- Number in brackets "()" is the corresponding AMP-TEST-BOX connection.
- F1-F4 are connected to PIN-BAR S0 at Still-Level and via there to BOX-II.
- NO GROUNDS!
P
|
CONNECTION |
PLG |
BOX |
COMMENT
|
15
|
T.P. 15/16, ends at Still! ->n.c.! |
S |
I, X10:2 |
RX10:2-15=172.7
|
13
|
nc |
J |
I, X9:3 |
RX9:3-13=169
|
11
|
nc |
K |
I, X9:4 |
RX9:3-11=168.6
|
9
|
nc |
L,a |
I, X10:3 |
RX10:3-9=177.9
|
7
|
CT (FT) on MC, S5 at LR700 |
c |
I, X6:4, X6:3 |
R7/8=122
|
5
|
nc |
V |
I, X11:1 |
RX11:1-5=68.9
|
3
|
nc |
- |
STILL S0:4 |
RS0:4-3=14
|
1
|
nc |
b |
II,(10) , S0:6 |
RII,b-1=69
|
P
|
CONNECTION |
PLG |
BOX |
COMMENT
|
16
|
T.P. 15/16 |
M,Z |
I, X10:4 |
sc with PIN 10 on backside
|
14
|
nc |
M,Z |
I, X10:4 |
sc with PIN 10 on backside
|
12
|
nc |
M,Z |
I, X10:4 |
sc with PIN 10 on backside
|
10
|
nc |
M,Z |
I, X10:4 |
RX10:4-10=47.7 k
|
8
|
CT (FT) on MC, S5 at LR700 |
A-F |
I, X2-X6:1-4 |
see here:circuit diagram
|
6
|
nc, same function as F8 |
A-F |
- |
R6/8=0.3, R6/7=122
|
4
|
nc |
- |
S0:1 |
RS0:1-4=14
|
2
|
nc |
Y |
II,(21) , S0:3 |
RII,Y-2=69
|
STILL
There are seven PIN BARS (0,A-F) mounted on the mixing chamber. Each consists of 16 PINS arranged in two columns.
BAR S:0
- Connected to BOX II
- NO GROUNDS
- 07-11 are connected to heaters of the persistent current switch (PCS) 4P PCS on the bottom of the 4K-flange.
- Number in brackets "()" is the corresponding AMP-TEST-BOX connection.
- counting from top to bottom (left upper corner: 15, right bottom:2)
P
|
CONNECTION |
PLG |
BOX |
COMMENT
|
15
|
MC Heater (-) |
F(6) |
II,X1:2 |
|
13
|
MC Heater (-) |
L(23) |
- |
|
11
|
PCS 4P-2 |
Z(17) |
- |
RZ-11=50
|
9
|
PCS 4P-4 |
V(11) |
- |
RV-9=50
|
7
|
PCS com. Current |
X(16) |
- |
sc with 2,7,8,11, 12, 13,14,17,18,20 at AMP Test-BOX
|
5
|
Degauss cable at MC |
U(9) |
- |
nc at MC
|
3
|
F2 at MC |
Y(21) |
- |
RS0:3-F2=14
|
1
|
F4 at MC |
nc |
- |
no connection on backside
|
P
|
CONNECTION |
PLG |
BOX |
COMMENT
|
16
|
MC Heater (+) |
E(5) |
II,X1:1 |
|
14
|
MC Heater (+) |
D(4) |
II, - |
|
12
|
PCS 4P-1 |
B(2) |
II, - |
RB-12=50
|
10
|
PCS 4P-3 |
T(8) |
II, - |
RT-10=50
|
8
|
Degauss cable at MC |
A(1) |
II, - |
nc at MC
|
6
|
F1 at MC |
b(10) |
II, - |
RS0:6-F1=14
|
4
|
F3 at MC |
- |
- |
no connection on backside
|
2
|
nc |
- |
- |
no connection on backside
|
BAR S:E
- BAR S:E is connected with BAR E on MC!
BAR S:F
- Connected to BOX V.
- Connected with superconducting Nb-wires leading to the Cu-stage in textile tube "beta". The sc wires of tube "alpha" are directly connected with BOX V.
- NO GROUNDS!
P
|
CONNECTION |
PLG |
BOX |
COMMENT
|
15
|
nc |
B |
V |
R15-end=173
|
13
|
nc |
D |
V |
R13-end=171
|
11
|
nc |
F |
V |
R11-end=172
|
9
|
nc |
H |
V |
R9-end=140
|
7
|
nc |
K |
V |
R7-end=170
|
5
|
nc |
L |
V |
R5-end=169
|
3
|
nc |
P |
V |
R3-end=169
|
1
|
nc |
S |
V |
R1-end=168
|
P
|
CONNECTION |
PLG |
BOX |
COMMENT
|
16
|
nc |
A |
V |
R16-end=172
|
14
|
nc |
C |
V |
R14-end=172
|
12
|
nc |
E |
V |
R12-end=170
|
10
|
nc |
G |
V |
R10-end=140
|
8
|
nc |
Y |
V |
R8-end=170
|
6
|
nc |
M |
V |
R6-end=138
|
4
|
nc |
N |
V |
R4-end=169
|
2
|
nc |
R |
V |
R2-end=169
|