
Appendix B Cables and Connectors
SCSI Connector | Page B - 3 |
SCSI
Connector
Maximum Cable Length
The RF3880 supports the differential SCSI interface by use of the
Maximum cable length for differential operation is 25 meters (or 82 feet). This length includes internal cabling and cable stubs.
Signal Name | Pin Number | Cable Conductor Number | Pin Number | Signal Name | |
+DB (12) | 1 | 1 | 2 | 35 | |
|
|
|
|
|
|
+DB (13) | 2 | 3 | 4 | 36 | |
|
|
|
|
|
|
+DB (14) | 3 | 5 | 6 | 37 | |
|
|
|
|
|
|
+DB (15) | 4 | 7 | 8 | 38 | |
|
|
|
|
|
|
+DB (P1) | 5 | 9 | 10 | 39 | |
|
|
|
|
|
|
Ground | 6 | 11 | 12 | 40 | Ground |
|
|
|
|
|
|
+DB (0) | 7 | 13 | 14 | 41 | |
|
|
|
|
|
|
+DB (1) | 8 | 15 | 16 | 42 | |
|
|
|
|
|
|
+DB (2) | 9 | 17 | 18 | 43 | |
|
|
|
|
|
|
+DB (3) | 10 | 19 | 20 | 44 | |
|
|
|
|
|
|
+DB (4) | 11 | 21 | 22 | 45 | |
|
|
|
|
|
|
+DB (5) | 12 | 23 | 24 | 46 | |
|
|
|
|
|
|
+DB (6) | 13 | 25 | 26 | 47 | |
|
|
|
|
|
|
+DB (7) | 14 | 27 | 28 | 48 | |
|
|
|
|
|
|
+DB (P) | 15 | 29 | 30 | 49 | |
|
|
|
|
|
|
Diffsens | 16 | 31 | 32 | 50 | Ground |
|
|
|
|
|
|
Termpwr | 17 | 33 | 34 | 51 | Termpwr |
|
|
|
|
|
|
Termpwr | 18 | 35 | 36 | 52 | Termpwr |
|
|
|
|
|
|
Reserved | 19 | 37 | 38 | 53 | Reserved |
|
|
|
|
|
|
+ATN | 20 | 39 | 40 | 54 | |
|
|
|
|
|
|
Ground | 21 | 41 | 42 | 55 | Ground |
|
|
|
|
|
|
+BSY | 22 | 43 | 44 | 56 | |
|
|
|
|
|
|
+ACK | 23 | 45 | 46 | 57 | |
|
|
|
|
|
|
+RST | 24 | 47 | 48 | 58 | |
|
|
|
|
|
|
+MSG | 25 | 49 | 50 | 59 | |
|
|
|
|
|
|
+SEL | 26 | 51 | 52 | 60 | |
|
|
|
|
|
|
+C/D | 27 | 53 | 54 | 61 | |
|
|
|
|
|
|
+REQ | 28 | 55 | 56 | 62 | |
|
|
|
|
|
|
+I/O | 29 | 57 | 58 | 63 | |
|
|
|
|
|
|
Ground | 30 | 59 | 60 | 64 | Ground |
|
|
|
|
|
|
+DB (8) | 31 | 61 | 62 | 65 | |
|
|
|
|
|
|
+DB (9) | 32 | 63 | 64 | 66 | |
|
|
|
|
|
|
+DB (10) | 33 | 65 | 66 | 67 | |
|
|
|
|
|
|
+DB (11) | 34 | 67 | 68 | 68 | |
|
|
|
|
|
|
Table 121: Cable Connector Pin-outs for the RF3886
User’s Guide | 21020285 D |