IBM 5280 Technical Newsletter page 9

Page of SY31-o600-1
As updated January 30, 1981
By TN L SN20-9543
503
CARD OPTIONS
The card option table shows which cards to use for the
different configurations available. See 501 for the card
plug chart.
Card
Location Function Size·
Reference Remarks
A1
Keyboard/display MPU 8-wide
200 Contains 2 K bytes of keyboard storage
B1 Elapsed-time counter
2-wide 771, 773
B1
1-MSR and elapsed-time counter 2-wide 771 Communicating IBM 5285 only
B1 4-MSR and elapsed-ti me counter
4-wide 773 Non-communicating IBM 5285 only
B1 Buffer timer
2-wide 209
IBM 5285 w/o ETC
B5 Main storage
2-wide 403 Additional main storage
B7 Keyboard storage 2-wide 207
Additional keyboard storage
C1
Diskette/main MPU
8-wide 303 Contains 32 K bytes of main storage
01
Diskette driver/receiver 2-wide 305 Non-communicating IBM 5285 only
03 VFO 2-wide 501
05 Printer MPU 2-wide 731
07 EIA 2-wide 823 Communicating IBM 5285 only
07 DDSA 2-wide
825
Communicating IBM 5285 only
07
38LS World Trade switched 2-wide 821
Communicating IBM 5285 only
07 38LS United States switched 2-wide 815 Communication IBM 5285 only
D7 38LS World Trade nonswitched
2-wide 819 Communicating IBM 5285 only
07
38LS United States nonswitched,
2-wide
813
Communicating IBM 5285 only
manual answer
07 38LS United States nonswitched, 2-wide 817
Communicating IBM 5285 only
SNBU, auto-answer
07 38LS United States nonswitched, 2-wide 813
Communicating IBM 5285 only
SNBU, manual answer
E1
Data station adapter
4-wide 201
Used when IBM 5281 is attached
E1
Dual data station adapter 4-wide 203
Used when IBM 5282 is attached
E5
BSC/SD LC communications 4-wide 811
Communicating IBM 5285 only
attachment
E5 Feature Main MPU
4-wide 402
Non-communicating IBM 5285 only
80 503