IBM Series 1 User Manual page 171

Integrated Digital
1/0 Pin Assignments
TCC Connector J2 (middle of card)
(--!
,
II I
Pin
I
J2
-
A
Side
IGRP
t
I
J2
-
B
Side
, GRP
,
----1-------------------1----11------------------1----I
20 01 09
I
1
I
DI
10
I
1
19 01
1 1
,
1
I
01 12
,
1
18
D1
13
J
1
I
D_I 14
I
1
17 COMMON
I I
01 15
I
1
16 COMKON
I t
EXT SYNC IN i 0
15
COKMON
I
,
EIT SYNC
IN
I
1
14 COMMON
I I
EXT SYNC
IN
I
2
13 COMMON
I
f
EXT SYNC
IN
t
3
I
12
COMMON
I I
SPARE I 2
I
11 COMPION
I
J
SPARE
I
-
110
COMMON
,
I SPARE
1
-
I
9
COMMON
I I
DO 00
I
2
I 8
COMMON
t I
DO 01
I 2
I
7 COMMON
I I I
DO 02
I 2
I
6 COMMON t
II
DO 03
I
2
J 5 COMMON
I
I 1
DO 04
I 2
I 4
eOKMON
I
, I
DO
05
I 2
I
3 DO 07
I
2
J
I DO 06 I 2 J
I
2 DO
08
J 2
I I
POLARIZING
PIN I
-
I
I
1
DO
10
I
2 1 I
DO 09
1 2
I
L - - . J
f
\
,
5-14 GA34-0033