IBM System/32 Introduction And Maintenance Manual page 61

Pin Side of 4-Wide Card
A2C2
Servo Head Position and Track Following Detect,
Phase Lock Oscillator
Disk Enclosure (DE)
Motor and Fan
Servo Control and
24V Brake
Servo Head
Card
A2D2
Read/Write
~_...L....-_
A2G2
Serial
~Write
Data
*See 2.1.3, Grounding.
Serial
Read Data_
Servo Coil Drivers,
Current Sense,
Plus and Minus 12V Current
Regulators
Read/Write/Scan Data,
Cycle Steal Control
Data Unsafe Detection,
Phase Lock Oscillator Contro
A2D4
Servo Velocity Control,
Interlock Singleshots
I
0
0
0
0
D
0
0
0
0
0
0
0
0
0
J
0
0
0
0
0
0
0
0
0
P
0
0
0
0
0
0
0
0
0
U
0
0
0
0
0
0
0
0
0
B
0
0
0
0
0
0
0
0
0
G
0
0
0
0
0
0
0
0
0
M
0
0
0
0
0
0
0
0
0
S
0
0
0
0
0
02
03
04
05
06
07
08
09
10
11
12
13
02
03
04
05
06
07
08
09
10
11
12
13
02
03
04
05
06
07
08
09
10
11
12
13
02
03
04
05
06
07
08
09
1
1
1
1
o
1
2
3
Disk Drive 2-27