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1. Setting Terminals
The user must set the following terminals and SCSI terminating resistor before installing the HDD in the system.

Setting terminal: CN2
Figures 1 shows the setting terminal position.
Figures 2 shows allocation and default setting: Setting terminals (CN2 on NP model only)

CAUTION:
1. The user must not change the setting of terminals not described in this section. Do not change setting status set at factory shipment.
2. Do not change the setting of terminals except following setting pins when the power is turned on. - Write protect: CN2 9-10
3. To short the setting terminal, use the short plug attached when the device is shipped from the factory.

            

2. SCSI ID setting (NP model only)
Table 1 shows the SCSI ID setting. Refer to Figure 1 and Figure 2 for connector positioning and allocation.
IMPORTANT
When the SCSI ID is set using the external operator panel connector CN1, all pins listed in Table 1 should be open. If any of pins are shorted, unexpected SCSI is set.

1. Set the SCSI ID so that there are no duplicates between SCSI devices on the same SCSI bus.
2. The priority of SCSI bus use in ARBITRATION phase is determined by SCSI ID as follows: 7>6>5>4>3>2>1>0>15>14>13>12>11>10>9>8
Table 1 SCSI ID setting (CN2 on NP model only)

SCSI ID CN2
     7-8         5-6        3-4         1-2
0  OPEN     OPEN    OPEN     OPEN
1  OPEN     OPEN    OPEN     SHORT
2  OPEN     OPEN    SHORT   OPEN
3  OPEN     OPEN    SHORT   SHORT
4  OPEN     SHORT  OPEN     OPEN
5  OPEN     SHORT  OPEN     SHORT
6  OPEN     SHORT  SHORT   OPEN
7  OPEN     SHORT  SHORT   SHORT
8  SHORT   OPEN    OPEN     SHORT
10 SHORT  OPEN    SHORT   OPEN
11 SHORT  OPEN    SHORT   SHORT
12 SHORT  SHORT  OPEN     SHORT
14 SHORT  SHORT  SHORT   OPEN
15 SHORT  SHORT  SHORT   SHORT

* Setting at factory shipment

            

3. Each mode setting (NP model only)
(1) Setting terminal power supply
Refer to Table 2 for controlling the supply of power from the drive to SCSI terminal resistance power source (TERMPOW). However, this setting may not be used with NC model. For information on NP type model, refer to Figure 1 and Figure 2.

Table 2 Setting SCSI terminator power supply (NP model only)

Supply on/off of SCSI terminator power from HDD  CN2 23-24  
Supply off  OPEN  
Supply on  SHORT *  

* Setting at factory shipment

(2) Motor start mode
Set how to control the starting of the HDD spindle motor according to Table 3. This setting only determines the operation mode when the power supply is turned on. The stopping or restarting the spindle motor can be controlled by specifying the START/STOP UNIT command.

Table 3 Motor start mode setting (NP model only)


Start timing of the spindle motor CN2 11-12(NP)
Starting of the motor is controlled with START/STOP UNIT
command. OPEN
The motor is started immediately after the power supply is turned on. SHORT *

* Setting at factory shipment

(3) Write protect
When the write protect function is enabled, writing to the disk medium is disabled.
Table 4 Write protect setting (NP model only)

Write protect  CN2 9-10  
Write operation is enabled.  OPEN *  
Write operation is disable. SHORT  

* Setting at factory shipment

(4) Setting of the SCSI interface operation mode
By establishing a short-circuit between the 13 and 14 CN2 setting terminals, the bus width for the SCSI interface is forcibly set to the 8-bit bus mode. The setup terminal must be set in order to guarantee the physical level of the SCSI interface\'s upper bus (DB8-15, P1) inside the HDD only when the top-level bus (DB8-15, P1) for the HDD SCSI interface is not connected to the external part of the HDD.
Table 5 Setting of the SCSI interface operation mode (NP model only)

Operation mode  CN2 15-16
Follows the DIFFSNS signal level on the SCSI bus OPEN *  
Single-Ended mode. SHORT  

* Setting at factory shipment

(5) Setting the bus width of the SCSI interface
By establishing a short-circuit between the 13 and 14 CN2 setting terminals, the bus width for the SCSI interface is forcibly set to the 8-bit bus mode. The setup terminal must be set in order to guarantee the physical level of the SCSI interface\'s upper bus (DB8-15, P1) inside the HDD only when the top-level bus (DB8-15, P1) for the HDD SCSI interface is not connected to the external part of the HDD.
Table 6 Setting the bus width of the SCSI interface (NP Model only)

Bus width  CN2 13-14
16 bit bus OPEN *  
8 bit bus SHORT  

* Setting at factory shipment

            

4. Mode settings
In addition to the previously described settings using setting terminals, the HDD is provided with several mode settings. The mode settings are enabled by specifying the CHANGE DEFINITION command. Table 7 lists the mode settings and their settings at factory shipment.

Table 7 Default mode settings (by CHANGE DEFINITION command)

Mode setting Contents
SCSI level SCSI-2
SYNCHRONOUS DATA TRANSFER REQUEST message sending Not Sent from HDD
UNIT ATTENTION report mode Reported
Reselection retry count Not restricted
WIDE DATA TRANSFER REQUEST message sending Not Sent from HDD
Reselection time-out delay 250 ms
Spindle motor start delay time 0 second (NP)
12 seconds x SCSI ID
(NC)

http://www.fujitsu.com/global/services/computing/storage/hdd/ehdd/map3-jumper.html#idscsi
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