M2511A Switch Settings

Fujitsu M2511A : Switch Settings

PCA Layout All configurations marked * are default settings.

There are two different layouts of PCA for this drive therefore serial numbers must be checked before adjustments are made. The only functional differences are in terminal CNH1 and CNH2. See the board layout diagram for the physical differences. The functions of switch bank SW1 and SW2 remain the same. To maintain backward compatibility, an external connector designed for the early version PCA for CNH2 will fit directly on to the pins 2, 4, 6, and 8 of the later version.

Switch SW1

Key 1

OFF*        Reserved

Select SCSI ID

Keys        2           3           4           SCSI ID     
                                                            
           OFF*        OFF*        OFF*        0

            OFF         OFF         ON          1

            OFF         ON          OFF         2

            OFF         ON          ON          3

            ON          OFF         OFF         4

            ON          OFF         ON          5

            ON          ON          OFF         6

            ON          ON          ON          7

Switch SW2

SCSI bus parity

Key 1       ON*         Enabled                                            
            OFF         Disabled

Synchronous Data Transfer Request Mode (SDTR)

Key 2       OFF*        Disabled from TARG                                 
            ON          Enabled from TARG

Device mode

Key 3       OFF*        Direct access device (INQ = 00)                    
            ON          Optical memory device (INQ = 07)

Automatic spindle stop mode

Key 4       OFF         Disabled                                           
            ON*         Enabled

Command compatibility

Key 5       OFF*        Sony MO compatible                                 
            ON          ANSI compatible

Key 6       OFF*        RESERVED

Macintosh Mode

Key 7       OFF*        Mac mode off                                       
            ON          Mac mode on

Send/Receive Diagnostic Command

Key 8       OFF*        Rejected                                           
            ON          Accepted

Terminal CNH 1 (For drives with serial above 30,000)

SCSI Terminating Power

1-2           3-4            Function

SHORT*        SHORT*         Power is supplied from the drive to both the terminating resistor pack and the    
                             TERMPWR pin on the SCSI bus. (Pin 26)

OPEN          SHORT          The TERMPWR pin is not used. Power is supplied to the drive terminating resistor  
                             only from the drive

SHORT         OPEN           Power is not supplied to the terminating resistor from the drive, only from the   
                             TERMPWR pin.

Terminal CNH 1 (For drives with serial below 30,000)

SCSI Terminating Power

1 - 2         SHORT*         The TERMPWR pin is not used. Power is supplied to the drive terminating resistor  
                             only from the drive

2 - 3         SHORT          Power is not supplied to the terminating resistor from the drive, only from the   
                             TERMPWR pin. (Pin 26)

Terminal CNH 2 (For drives with serial above 30,000)

Pin           Signal

1             CTRGIN (Cartridge in)

2             -ID2 (bit value 4)

3             +5VS

4             -ID1 (bit value 2)

5             ELED (LED control)

6             -ID0 (bit value 1)

7             EJSW (Eject switch)

8             Ground

9             DEVMD (Device mode)

10            No connection

11            MACMD (MAC Mode)

12            No connection

Terminal CNH 2 (For drives with serial below 30,000)

Pin           Signal

1             -ID2 (bit value 4)

2             -ID1 (bit value 2)

3             -ID0 (bit value 1)

4             Ground