Fujitsu MCP3064SS, MCM3064SS, MCP3130SS Setting of supplying power to Scsi terminating resistor

Models: MCM3130SS MCP3130SS MCM3064SS MCP3064SS

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Installation

The access supervision time from the host is about 33 minutes as the default. However, it can be changed by the MODE SELECT command.

The spindle auto stop mode can also be changed by the MODE SELECT command.

Table 4.5 shows spindle auto stop mode setting.

Table 4.5 Spindle automatic stop mode setting

 

Spindle auto stop

SW1-07

 

 

The spindle motor automatically stops.

ON (*1)

 

 

The spindle motor does not automatically stop.

OFF

 

 

 

*1

Setting when shipped

 

The characteristic of the spindle auto stop function are as follows:

Reduces the deposition of dust which could cause a cartridge error.

Not suitable for a system requiring quick response because it takes a few seconds to start the spindle.

4.3.2 Setting of supplying power to SCSI terminating resistor

Table 4.6 shows how to supply power to the SCSI terminating resistor module on the drive and how to use TERMPWR lines on the SCSI bus.

Table 4.6 SCSI terminating resistor power supply (CNH1)

SCSI terminating resistor power supply

CNH1 01-02

CNH1 03-04

 

 

 

Power is supplied from both of the drive and

Short (*1)

Short (*1)

TERMPWR pin.

 

 

 

 

 

Power is supplied from the drive only.

Short

Open

(TERMPWR pin is not used)

 

 

 

 

 

Power is supplied from TEMPWR pin only.

Open

Short

(Drive’s power supply is not used)

 

 

 

 

 

No power is supplied.

Open

Open

 

 

 

*1 Setting when shipped

 

 

4-10

C156-E228-02EN

Page 76
Image 76
Fujitsu MCP3064SS, MCM3064SS Setting of supplying power to Scsi terminating resistor, Spindle automatic stop mode setting