Cable, CompactFlash and Accessory Specifications
A-8
Figure A-9 EIA-449 DTE Pin Assignments
17
18
19
27
21
26
20
1
2
3
11
5
10
4
7
6
8
12
13
15
16
9
14
11
29
6
24
4
22
7
25
9
27
5
23
8
26
37
12
30
1
ON0+
ON0-
RD0+
RD0-
SD0+
SD0-
RS0+
RS0-
CS0+
CS0-
ST0+
ST0-
RT0+
RT0-
SG0
Shield GND
RC0
TR0+
TR0-
35
36
37
45
39
44
38
41
40
42
46
47
49
50
43
48
J1
J2
J3
J4
20
19
J1 - 68-pin male SCSI III type connector
J2...J5 - DB-37 type male connector
- Indicates Twisted Pair
Notes:
1
.
2. Shield GND is braid on braided cable
3. Shield GND is drain wire on foil shield cab
4. Braid or foil must enter and make contact
inside metal connector hood
5. All connectors must be metal
6. Pins not shown are unused
SC0
6
24
4
22
7
25
9
27
5
23
8
26
37
12
30
1
RD1+
RD1-
SD1+
SD1-
RS1+
RS1-
CS1+
CS1-
ST1+
ST1-
RT1+
RT1-
SG1
Shield GND
RC1
TR1+
TR1-
20
19
SC1
6
24
4
22
7
RD2+
RD2-
SD2+
SD2-
RS2+
11
29
ON1+
ON1-
11
29
ON2+
ON2-
Port 1
Port 2
17
18
19
27
21
26
20
23
22
24
28
29
31
32
25
30
51
52
53
61
55
60
54
57
56
58
62
63
65
66
59
64
J4
J5
6
24
4
22
7
25
9
27
5
23
8
26
37
12
30
1
RD2+
RD2-
SD2+
SD2-
RS2+
RS2-
CS2+
CS2-
ST2+
ST2-
RT2+
RT2-
SG2
Shield GND
RC2
TR2+
TR2-
20
19
SC2
6
24
4
22
7
25
9
27
5
23
8
26
37
12
30
1
RD3+
RD3-
SD3+
SD3-
RS3+
RS3-
CS3+
CS3-
ST3+
ST3-
RT3+
RT3-
SG3
Shield GND
RC3
TR3+
TR3-
20
19
SC3
11
29
ON2+
ON2-
11
29
ON3+
ON3-
J1: 68-pin male SCSI II type connector
J2 - J5: DB-37 type male connector
