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4.3.2 68-pin connector type 16-bit SCSI model (NP model)
(1) Connectors
Figures 4.15 show the locations of connectors and terminals on the 68-pin connector type 16-bit
SCSI model (NP model).
• Power supply connector
• SCSI connector
• External operator panel connector
External operator
panel connector
(CN2)
SCSI connector (CN1)
Power supply
connector (CN1)
External operator panel
connector (CN1)
Figure 4.15 NP connectors and terminals location
(2) SCSI connector and power supply connector
a. 16-bit SCSI
The connector for the SCSI bus is an unshielded P connector conforming to SCSI-3 type
which has two 34-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.16 shows the SCSI
connector. See Section B.2 in Appendix B for the signal assignments on the SCSI connector.
For details on the physical/electrical requirements of the interface signals, refer to Sections 1.3
“Physical Requirements” and Section 1.4 “Electrical Requirements” of the SCSI Physical
Interface Specifications.
60 C141-E270