• NO OPERATION

• RESTORE POINTERS

• SAVE DATA POINTER

• SYNCHRONOUS DATA TRANSFER REQUEST

Physical

Connection

INTERFACE

Specifications

SCSI devices are daisy-chaned together using a common 50-

 

 

 

 

 

 

conductor ‘A’ cable and, optionally, a 68-conductor ‘B’ cable. Both

 

 

ends of each cable are terminated. All signals are common between

 

 

all SCSI devices on the ‘A’ cable. In systems that employ the wide

 

 

SCSI option, wide SCSI devices additionally connect to the ‘B’ cable.

 

 

Various width SCSI devices may be mixed. This scanner supports ‘A’

 

 

cable.

 

 

Note: Use of ‘B’ cable is not recommended because of ANSI draft

 

 

proposal indicates this definition is removed in a future

 

 

version of the SCSI.

 

SCSI device

 

SCSI device

SCSI device

SCSI device

 

 

 

 

 

 

 

 

TERMINATOR

 

 

 

 

 

 

TERMINATOR

 

 

 

 

 

 

 

 

Figure 3.1 SCSI device connection

M3099GX/GH OEM Manual

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