Quantum Q250 Technical Reference Manual page 18

Ground
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
CENTER KEY SLOT
DDDDDDDDDDDDDDDCCCCCCCCCC
DOCOCDOCCCCCCDCCCCCCCCCCC
CONNECTOR PCB
POSITION #1 INDICATOR
Figure 2-5: Jl Connector
Table 2-1: Jl Pin Assignments
Signal
Name
2 -Data Bit 0 (-DBO)
4 -Data Bit 1 (-DBl)
6
-Data Bit 2 (-DB2)
8 -Data Bit
3
(-DB3)
10 -Data Bit 4 (-DB4)
12 -Data Bit 5 (-DB5)
14 -Data Bit 6 (-DB6)
16 -Data Bit 7 (-DB7)
18 -Data Bit P (-DBP)
20 Ground
22 Ground
24 Ground
Open
26
Terminator Power (TERMPWR)
28 Ground
30
Ground
32
-ATN
34 Ground
36
-BSY
38 -ACK
40
-RST
42 -MSG
44 -SEL
46
-C/D
48
-REQ
50
-I/O
2-9