IBM 2025 Maintenance Manual page 72

Processing unit
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2560 External 3 (MFD3) (2540 Emulator
Operation>
OCOO** 0
1
2
3
4
5
6
7
+ PRI hopper empty
+
SEC hopper empty
+ Punch check light FL
Spare
+
Punch status request
+
Read check
S:Fare
Spare
2560 External 1 (MFDl)
0001
0
+ Feed CB6
1
+ Feed CBS
2
+ Feed CB4
3
- Feed CB3
4
+ Feed CB2
5
Spare
6
+ Feed Clutch select
7
- Motor ready
2560 External 4
(~FD4)
(20 Mode Operation>
0010
+
Ccrn kick SC9 EXP
+
AFT PRT sea EXP
+
PRE PRT SC7 EXP
+ PRE PCH PRI SC5 EXP
- Read cell 3 exposed
- Cell 3 dark FL
0
1
2
3
4
5
6
7
+ Input
Sta ti on SCl EXP
+ Feed CB1
Storage Protect 0 (STPO)
(2540 Errulatcr
Operaticn)
0010
**O
+ STPO l::it 0 (QO)
1
+ STPO bit 1
(Ql)
2
+ STPO tit 2 ( Q2)
3
+ STPO bit 3 (Q3)
4
+ STPO l:it 4 (Q4)
5
+ STPO bit 5 (Q5)
6
+ STPO bit 6 (Q6)
7
+ STPO tit 7 (Q7)
2560 External 2 (MFD2) (20 Mode Operation)
0011
0
+
PRI first PCH EJ SEl
1
- Allow COL emitter FL
2
+
FRI PRE PCH REG SEL
3
- FCB1 to FCB2 FL
4
+
FRI read inject SEL
5
+ Read cell - 4- 9 EXP
6
+ Primary hopper SEL
7
+
Any punch DR
1-62 (7/69)
Storage Protect 1 (STPl)
(2540 Emulator
Operation>
0011**0
+
STPl bit 0
1
+
STPl bit 1
2
+
STPl bit 2
3
+
STPl bit 3
See Note 5
4
+
STPl bit 4
AAAD Routine
5
+
STP1 bit 5
*E60 Listing
6
+
STPl bit 6
7
+
STPl bit
7
0100* same as in CPU Mode
0101* same as in CPU Mode
0110* Same as in CPU Mode
0111* Same as in CPU Mode
2560 Read Rows 4-9 (MFRl)
1000
0
- PRE RD SEC SC2 EXP
1
+ 2540 RDR device
2
+ Card cede FL4
3
+ Card code FLS
4
+ Card cede FL6
5
+
Card code FL?
6
+ Card code FL8
7
+ Card cede FL9
2560 External 5 (MFD5)
1001
0
1
2
3
4
5
6
7
- Cell 1 dark FL
- Cell 4 dark FL
- Cell 5 dark FL
- Punch CBl
- Punch CB2
- PCH INCR DR CEB
+ PCH push clutch
+ Cell 8 dark FL
2560 Read Rows 12-3 (MFR2)
1010
O
+ Diag feed check
end
SEL
1
+
2540 PCH device end
2
+
Card cede FL12
3
+
Card code FL11
4
+
Card cede FLO
5
+
Card code Fll
6
+
Card code FL2
7
+ Card code Fl3
2560 External 6 (MFD6)
1011
0
+ PRT
gate SEL/TRAN
RL
1
- Cell 7 dark FL
2
- COL emitter test FL
3
+
2560 stacker SEL REQ
4
+
Corner kick MAG SEL
5
- Pass print FL
6
- Pass punch FL
7
+
PRE RD PRI SC3 EXP

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