Appendix B. Scsi Cable And Terminator Requirements; Scsi Cable Requirements - Spectra Logic 2K User Manual
Spectra logic spectra 2k library pn 90870782 rev e user guide
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- Develop manual (61 pages) ,
- Replacement manual (28 pages) ,
- Supplementary manual (12 pages)
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Appendix B. SCSI Cable and Terminator
Requirements
To operate correctly, the library must meet certain requirements as explained by the
following sections:
• SCSI Cable Requirements
• SCSI Terminator Requirements
SCSI Cable Requirements
The following table lists the recommended specifications for a SCSI cable (not
included).
Cable Feature
Standard Construction
Primary Conductors
Shielding
Outer Jacket
Voltage Rating
Impedance
Grounding
Connector
Requirement
68 conductors (34 twisted pairs with drain wire and shield)
Insulated per UL Style 1589
Gauge: #28 AWG minimum stranded (7/34) annealed, tinned copper
Insulation: Polypropylene (80° C) 0.010 inch nominal
80% minimum tinned copper braid over aluminum/mylar foil
Insulated per UL Style 2919, polyvinyl chloride (PVC) (80° C)
30 VAC
100 Ohms ±10% @ 1.5 MHz
Case to case grounding
68-contact AMP Amplimate 0.050 male, shielded, SCSI-3 connector
79
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