Control Data 3170 Installation Handbook page 194

Product
Equipment
Product
Designation FCO Level
Control Data 3248 Card Reader
Controller
A13
Control Data 3290-2 Display
Controller
D03
POI
CD03353
Control Data 211 Display
Control Data 3266 Communication
Controller
B04
60410800 D
NOTE
The following changes must be made to the 3127/3128
controllers for successful operation of MSOS 5 with
601 or 608 tape drives. These changes delay the
interrupt signal to allow the tape to stop so the next
OX or 4X function code will be accepted.
If the tape
is not stopped or write control is not dropped, a
reject signal will be returned. The logic changes
are shown in the following illustration.
___ .. J035 FOR 3127
J042 FOR 3128
The following are the equation and placement changes.
D114
=
Z116 • Z118 • Z022
1K21 - 11
,;<
D104
,;<
D124
,;<
K112
,;<
S040 ' : : 8044
,;<
S045
,;<
D136
D136
=
Dl14 }
J
1K08 B
*
T016 New term
T016
=
D136 • (J035 or J042)
1K35A
The wiring changes cons ist of the following adds.
4 inches 1K08 - 8 to 1K08 - 14 GND
7 inches 1K08 - 7 to 1K21 - 6
13 inches 1K08 - 10 to 1H13 - 4 (3127 and 601 drives)
27 inches 1K08 - 10 to 1C35 - 4 (3128 and 608 drives)
Options
II-10-3