Cable SCSI externo
La figura adjunta muestra el esquema de distribución de pares y
disposición de pines típicas de un cable SCSI SE/HVD de 68 conductores
[1]. Cada círculo señala un par de conductores trenzados (34 pares).
| PIN# |
Par |
Señal SE |
Señal HVD
|
| 1 |
30 |
GROUND |
+DB12 |
| 2 |
31 |
GROUND |
+DB13 |
| 3 |
32 |
GROUND |
+DB14 |
| 4 |
33 |
GROUND |
+DB15 |
| 5 |
34 |
GROUND |
+PARITY1 |
| 6 |
16 |
GROUND |
GROUND |
| 7 |
17 |
GROUND |
+DB0 |
| 8 |
18 |
GROUND |
+DB1 |
| 9 |
19 |
GROUND |
+DB2 |
| 10 |
20 |
GROUND |
+DB3 |
| 11 |
21 |
GROUND |
+DB4 |
| 12 |
22 |
GROUND |
+DB5 |
| 13 |
23 |
GROUND |
+DB6 |
| 14 |
24 |
GROUND |
+DB7 |
| 15 |
25 |
GROUND |
+PARITY |
| 16 |
15 |
GROUND |
DIFFSENSE |
| 17 |
14 |
TERMPWR |
TERMPWR |
| 18 |
13 |
TERMPWR |
TERMPWR |
| 19 |
12 |
RESERVED |
RESERVED |
| 20 |
5 |
GROUND |
+ATN |
| 21 |
6 |
GROUND |
GROUND |
| 22 |
7 |
GROUND |
+BSY |
| 23 |
4 |
GROUND |
+ACK |
| 24 |
3 |
GROUND |
+RST |
| 25 |
8 |
GROUND |
+MSG |
| 26 |
9 |
GROUND |
+SEL |
| 27 |
10 |
GROUND |
+C/D |
| 28 |
2 |
GROUND |
+REQ |
| 29 |
1 |
GROUND |
+I/O |
| 30 |
11 |
GROUND |
GROUND |
| 31 |
26 |
GROUND |
+DB8 |
| 32 |
27 |
GROUND |
+DB9 |
| 33 |
28 |
GROUND |
+DB10 |
| 34 |
29 |
GROUND |
+DB11 |
|
| PIN# |
Par |
Señal SE |
Señal HVD |
| 35 |
30 |
-DB12 |
-DB12 |
| 36 |
31 |
-DB13 |
-DB13 |
| 37 |
32 |
-DB14 |
-DB14 |
| 38 |
33 |
-DB15 |
-DB15 |
| 39 |
34 |
-PARITY1 |
-PARITY1 |
| 40 |
16 |
-DB0 |
GROUND |
| 41 |
17 |
-DB1 |
-DB0 |
| 42 |
18 |
-DB2 |
-DB1 |
| 43 |
19 |
-DB3 |
-DB2 |
| 44 |
20 |
-DB4 |
-DB3 |
| 45 |
21 |
-DB5 |
-DB4 |
| 46 |
22 |
-DB6 |
-DB5 |
| 47 |
23 |
-DB7 |
-DB6 |
| 48 |
24 |
-PARITY |
-DB7 |
| 49 |
25 |
GROUND |
-PARITY |
| 50 |
15 |
GROUND |
GROUND |
| 51 |
14 |
TERMPWR |
TERMPWR |
| 52 |
13 |
TERMPWR |
TERMPWR |
| 53 |
12 |
RESERVED |
RESERVED |
| 54 |
5 |
GROUND |
-ATN |
| 55 |
6 |
-ATN |
GROUND |
| 56 |
7 |
GROUND |
-BSY |
| 57 |
4 |
-BSY |
-ACK |
| 58 |
3 |
-ACK |
-RST |
| 59 |
8 |
-RST |
-MSG |
| 60 |
9 |
-MSG |
-SEL |
| 61 |
10 |
-SEL |
-C/D |
| 62 |
2 |
-C/D |
-REQ |
| 63 |
1 |
-REQ |
-I/O |
| 64 |
11 |
-I/O |
GROUND |
| 65 |
26 |
-DB8 |
-DB8 |
| 66 |
27 |
-DB9 |
-DB9 |
| 67 |
28 |
-DB10 |
-DB10 |
| 68 |
29 |
-DB11 |
-DB11 |
|
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