IBM 2420 7 Manufacturer’s Information Brochure page 19

O~
Tape Control
Tape Unit
~9
Connector Connector
C u
OQl
Pin No.
Signal Name Pin No.
UC
Qlc
0. 0
roU
Signal Shield Signal Shield
I-
o~
Tape Control Tape Unit
~o
Connector Connector c ....
Ou
u~
Pin No. Signal Name
Pin No.
QlC
0.0
roU
Signal Shield Signal Shield
I-
B03
B02 Select TUO 77
76 J04 J05 Write Bus 4
21 20
B05
B04 Select TUl 79
78 J06 J07 Write Bus 5 31 32
B08 B07
Select TU2 86 87 J09 J08 Write Bus 6
33 34
B10
B09 Select TU3 88
89
b
Jl1 Jl0 Write Bus 7 35 36
B12
B13 Select TU4 97 96 J13 J12 Write Pulse 29 28
004 005 Select TU5 99
98
B03 B02 Mod 3
184 183
006
007 Select TU6 106 107
B05 B04 Mod 2 182.
181
009 008 Select TU7
108 109
B08 B07 Mod 1
180 179
a
011 010
Spare 117 116
B12 B13 Sel & Read Status
162 163
013
012 Spare 119
118
004 005 Sel & At Load
-198 199
G03 G02 Spare
176 175
Point
G05 G04 Spare 190
191 006 007 Backward Status 164 165
G08 G07
TU O-NR 142 141
009 008
Write Inhibit 194
195
Gl0
G09 TU l-NR 144 143 011
010
Sel & Not File 192 193
G12
G13 TU 2-NR 156
157
Protect
013 012 Spare 124
125
J04
J05 TU 3-NR 158 159
J06 J07 TU 4-NR 172
171
c G03 G02 Read Bus P 82
83
J09 J08
TU 5-NR 174 173
G05 G04 Read Bus 0 84
85
Jll
Jl0 TU 6-NR 186 187
G08 G07 Read Bus 1 93
92
J13 J12
TU 7-NR 188
189
Gl0 G09 Read Bus 2 95 94
G12 G13
Read Bus 3 102
103
B03
B02 Go 9
10
B05
B04 Backward 11 12
J04 J05 Read Bus 4 104 105
B08
B07 Set Write Status 13
14
J06 J07
Read Bus 5 113
112
Bl0
B09 Set Read Status 25 24
J09 J08 Read Bus 6 115 114
Jl1 Jl0 Read Bus 7
122
123
004
005 Spare 7 8
J13 J12 Sel & TI Off 196
197
006
007 Rewind 39 40
009
008 Rewind/Unload 41 42
b
011
010 Metering Out 23 22
013
012 Spare/Shield 37 38
G03
G02 Write Bus P
1
2
G05
G04 Write Bus 0 3 4
G08
G07 Write Bus 1
5 6
Gl0
G09 Write Bus 2 17 16
G12
G13 Write Bus 3 19 18
Note:
All shield pins connect to machine ground.
Rwd-NR=Rewinding -Not Ready.
Figure 9. Tape Unit/Tape Control Signal Cable Connector Pin Assignments
13