B. Specifications
129
J6 (Local Bus)
J6 is a 100-pin (dual 50-pin) vertical receptacle with 0.05 inch contact spacing. This
connector includes the signals needed for a local bus interface. This interface is used by
optional piggyback adapters, such as the Ziatech zVID video adapters. The pin
assignments are given in the “J6 Local Bus Video Pinout” table below. The mating
connector is an AMP 1-104655-1 (0.250 inch mated height), 1-10456-0 (0.320 inch
mated height), or 1-104693-0 (0.0390 inch mated height).
J6 Local Bus Pinout
Pin#
Signal
Type
Description
Pin#
Signal
Type
Description
1
VCC
------
+5 Volts
51
D12
In/Out
CPU Data
2
VCC
------
+5 Volts
52
D13
In/Out
CPU Data
3
A02
Out
CPU Address
53
D14
In/Out
CPU Data
4
GND
------
Ground
54
D15
In/Out
CPU Data
5
A04
Out
CPU Address
55
D16
In/Out
CPU Data
6
A03
Out
CPU Address
56
D17
In/Out
CPU Data
7
A06
Out
CPU Address
57
D18
In/Out
CPU Data
8
A05
Out
CPU Address
58
VCC
------
+5 Volts
9
A08
Out
CPU Address
59
D20
In/Out
CPU Data
10
A07
Out
CPU Address
60
D19
In/Out
CPU Data
11
GND
------
Ground
61
D22
In/Out
CPU Data
12
A09
Out
CPU Address
62
D21
In/Out
CPU Data
13
A10
Out
CPU Address
63
D24
In/Out
CPU Data
14
A11
Out
CPU Address
64
D23
In/Out
CPU Data
15
A12
Out
CPU Address
65
GND
------
Ground
16
A13
Out
CPU Address
66
D25
In/Out
CPU Data
17
A14
Out
CPU Address
67
D26
In/Out
CPU Data
18
A15
Out
CPU Address
68
D27
In/Out
CPU Data
19
A16
Out
CPU Address
69
D28
In/Out
CPU Data
20
A17
Out
CPU Address
70
D29
In/Out
CPU Data
21
A18
Out
CPU Address
71
D30
In/Out
CPU Data
22
GND
------
Ground
72
D31
In/Out
CPU Data
23
A20
Out
CPU Address
73
/BE0
Out
Byte Enable