IBM 6580

TYPE B KEYBOARD MODULE
The Type B keyboard and operational
voltages and signals are provided to
LOGIC CARD CONNECTOR
0000000000
0000000000
20
Pin
Termination
Identification
No.
Connector
7
1
2
3
4
6 Tone
5
9 +8.5 VDC
6
8
Data Strobe
7
2
(Spare)
8
4
Reset
9
11
+5.0 VDC
10
11
12
13
14
5
Click
15
10
Frame Ground
16
7 Kybd. Acknowledge
17
3 Serial Data Clockl
18 23
Frame Ground
I
19 1
Serial Data
I
20
I
I
SPEAKER CONNECTOR
\0001
Pin Termination
Identification
No. Connector
1
Speaker
+8.5 VDC
2
Speaker
Speaker Drive
3
Speaker
+8.5 VDC
Figure 8-27. Type B Keyboard Connectors
the keyboard through Connector 7 of
the electronics module. The keyboard
cable connector, speaker connector and
the keyboard pads are shown in
Figure 8-27.
KEYBOARD PADS
1 [) [] [] [] [] [] [] [] 8
9 [] [] [] [] [J [J [] [] 16
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
115
116
I
Signal Name
Click
Ground
Kybd. Acknowledge
Serial Data Clock
Ground
Serial Data
Tone
+8.5 VDC
Data Strobe
Reset
+5.0 VDC
8-42 lBt-! Displaywriter Product Support Manual