Keyboard Jumpers And Cables - IBM 3279 2A Maintenance Information

3279 MIM
Chapter 6. Suppon Information 6-28
6.7 Keyboard Jumpers and Cables
Jumper
Keyboard I D response (See Test Model 3)
Position Ensure that the Aa/A switch is set to Aa
Model 2 Model 3
Reserved
..
M
Reserved 1 U
W
Typewriter 3
C
S
Type'!Vriter with Numeric Lock
1,3
E G
Data Eottry 2
B
~
c
Data Entry with Numeric Lock
1,2 w
Data Entry. Keypunch 2,3
Z
Data Entry. Keypunch
with Numeric Lock
1,2,3 e
g
APL with PSH ICO 0 U
E
RPQ
0,1
Text 0,3
LJ
0
Text with Numeric Lock 0,1,3 4 6
APL
0,2
U
'It
APL with Numeric Lock
0,1,2
I
Typewriter with PSHICO
}
0,2,3
jj 0
Overlay with PSH ICO
Reserved
0,1,2,3
4
b
If PSH ICO present, Numeric lock is specified at CU customization and not by the keyboard I/O
PSHICO
=
PS, Highlighting and Color select on PF Keys (not valid on 3276 CUI
KeYboard_1
10 bits
Keyboard I D bits
normally UP unless
jumpered
CI icker Pins
A B
~::Ig=gl
~::::
8=8
10 Jumper
Block
Figure 6-11. Keyboard Logic 'and Connector
Keyboard Connector
"-"'-----B02
Logic Card
Clicker Asm