IBM Series 1 User Manual page 173

Figure 5-7 shows the relationship between the integrated
digital I/O feature and the customer access panel feature.
Figure 5-8 shows the pin numbering scheme for the 160-pin
contact block used at the customer access panel. The tables
that follow Figure 5-8 show the connections for both the
top-card connectors (Tee) and the customer access panel
(CAP) connector for each digital group.
Figure 5-7. Relationship of integrated digital I/O feature
to customer access panel feature
Processor
5-16
I/O channel
Integrated 11
L - - - - I
~~!~:!::~d
J2
feature#1560 13
Top-card
connectors
Customer
Customer access panel
~
L...-_-I
access panel
cable feature # 1593 feature #1590
GA34-0033