Appendix B. Connections
There are three connectors on the board. Pin 1 of each connector is marked, and
they are shown here as they appear on the board.
PL1
STEbus 64-way a/c DIN41612
J90 SC88T
Page 20
2192-08819-000-000
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
gnd
o
o
gnd
+5V
o
o
+5V
D0
o
o
D1
D2
o
o
D3
D4
o
o
D5
D6
o
o
D7
A0
o
o
gnd
A2
o
o
A1
A4
o
o
A3
A6
o
o
A5
A8
o
o
A7
A10
o
o
A9
A12
o
o
A11
A14
o
o
A13
A16
o
o
A15
A18
o
o
A17
CM0
o
o
A19
CM2
o
o
CM1
ADRSTB*
o
o
gnd
DATACK* o
o
DATSTB*
TRFERR*
o
o
gnd
ATNRQ0*
o
o
SYSRST*
ATNRQ2*
o
o
ATNRQ1*
ATNRQ4*
o
o
ATNRQ3*
ATNRQ6*
o
o
ATNRQ5*
gnd
o
o
ATNRQ7*
BUSRQ0*
o
o
BUSRQ1*
BUSAK0*
o
o
BUSAK1*
SYSCLK
o
o
VSTBY
-12V
o
o
+12V
+5V
o
o
+5V
gnd
o
o
gnd
Row
a c
Summary of Contents for SC88T
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