Card Location Chart - IBM 3274 51C Maintenance Information

51C withl
without
52C
Card Type B Kanjil
Number Card Function
Adapter Chinese
Control StoHlgn 32 (Note 1) Note 1 Note 1
2
Control StoHlge 64 (Note
1)
Note 1 Note 1
3 Control Storage 64-R (Note 1)
Note 1 Note 1
4
Storage Feed Thru (4W) or Storage Logic (4W) (Note 2) 01A-P2 01A-M2
5 Storage Feed ThrlJ (2W) or Storage Jumper (Note 2)
01A-02 01A-N2
6 Storage Jumper Control StoHlge Exp Jumper (Note 2) 01A-04 01A-N4
7 Control Logic 1 01A-N2 01A-L2
8 Control Logic 2 01A-M2 01A-K2
9 Control ,Logic 3 01A-L2 01A-J2
10 Diskette Adapter 01 A-K2 (Note 6) 01A-F2
11
Response Time Monitor w/wo Type-B Board 01A-B4
11 Response Time Monitor w/wo 24, 48, 96 1M Board
01A-C4
12 Type A Terminal Adapter
01A-J2
01A-D2
13
CCA/HPCA
01A-H2
01A-H2
14 EIA/DDSA/1200 LM.iLoop, X.21/V.35 (Note 3)
01A-G2 01A-G2
15 2400- 4800-bps 1M Receiver
01 A-F2
16
9600-bps 1M Receiver Ext. 01A-D2
17
2400-, 4800-bps 1M Processor 01A-D2
17 9600-bps I M Processor
01A-E2
18 2400-, 4800-, 9600-bps T AC (Note 3) 01A-C2
19 2400-,4800-, 9600-bps PROM
01A-C4
20 2400-,4800-, 9600-bps 1M Front End
01A-G2
21
Encrypt/Decrypt (See Note 4) 01A-A2
22
File Control (Located in the diskette drive)
01A-K 01A-K
23 Not Used
24 Type B Terminal Adapter 1 01A-D2
25 Type B Terminal Adapter 2
01A-C2
26
Type B Terminal Adapter 3 01A-F2
27 Type B Terminal Adapter 4
01A-E2
28
Type A Driver/Receiver (Note 5) 01S-A 1 01S-A 1
29 Not Used
30 Type B Driver/Receiver 01A-B2
31 Not Used
32 CCA/HPCA Interface Jumper 01A-Y6 01A-Y6
Notes:
1. For card locations, see "A. Control Storage Card Locations" (left}.
2. With some part numbers it is possible to plug card in backwards. To ensure correct plugging
position, see Figure A-tt.
3. Jumper or switch setting required (see Appendix C).
4. Card removal destroys the master key (see paragraph 6.1.3).
5. Located behind the I/O coaxial panel.
I
6.
Jumper should not be plugged on this card. This jumper is for manufacturing test purposes only.
D. Card Location Chart
Appendix A. Locations 1'0-3