CHAPTER 4 Host Interface

4.1Interface Connector

4.2Various Processes

4.3SCSI Comands

4.4SCSI Messages

4.5Timing Rule

This chapter describes host interface specification.

4.1 Interface Connector

The nonshielded SCSI connector installed on the ODD is a 50-conductor connector consisting of two rows of 25 male pins with adjacent pins 2.54 mm (0.1 in.) apart. See Figure 4.1.

The nonshielded cable connector shall be a 50-conductor connector consisting of two rows of 25 female contacts with adjacent contacts 2.54 mm (0.1 in.) apart. The use of keyed connectors is recommended to prevent accidental misinsertion. See Figure 4.2.

Figure 4.3 shows the nonshielded connector pin assignments for SCSI.

Symbol

mm

Remark

 

 

 

D1

2.54

-

 

 

 

D2

2.54

-

 

 

 

D3

5.08

-

 

 

 

D4

6.25

-

 

 

 

Note: The tolerance is ±0.127 mm unless otherwise specified.

Figure 4.1 SCSI interface connector (ODD side)

C156-E224-01EN

4-1

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Fujitsu MCJ3230SS manual Host Interface, Interface Connector