Specifications

Internal Ribbon and Power Connections
E.3 Internal Cable Connector Pin Assignments
Table E-l identities the pin assignments tor all connectors
associated with the motherboard. These pin assignments contorm
to the 5-100 bus specitications.
Table E-1. 5-100 Bus Motherboard Pin Assignments
Pin Number Function
Table E-2 identities the pin assignments tor those ribbon cable
connectors associated with the SUPER QUAD (or SUPER SIX) CPU
board. The table is divided into three sections, the 5 1/4-inch
tloppy disk controller connector, the 1/0 connector, and the
terminal connector.
Table E-2. CPU Board Ribbon Cable Connector Pin Assignments
5 1/4-inch Floppy Disk Drive Connector
Pin Number Function
1
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
E-2
GND
Head load
INDEX
READY
ABOVE TRK 43
DRS 0
DRS 1
DRS 2
DRS 3
DIRECTION
STEP
WRITE DAta
WRITE GATE
TRK "
WRT PROTECT
READ DATA
MOTOR ON
N/C