Specifications
SCSI cable specifications
The following table lists the recommendations for external SCSI cables for the narrow SCSI library.
Cable feature | Requirement |
|
|
Standard | 50 conductors (25 twisted pairs with drain wire |
Construction | and shield) |
|
|
Primary | Gauge: |
Conductors | # 28 AWG minimum stranded (7/34) annealed, |
| |
| tinned copper |
|
|
| Insulation: |
| Polypropylene (80° C) 0.010 inch nominal |
|
|
Shielding | 80% minimum tinned copper braid over |
| aluminum/mylar foil |
|
|
Voltage Rating | 30 VAC |
|
|
Impedance | |
| Differential: 130 Ohms ± 12 Ohms |
|
|
Grounding | |
|
|
Connector | |
| shielded, |
|
|
For the wide SCSI library, use cables that conform to
Installation and Operation | 149 |
