Jumper / Switch Settings and Definitions

        Product : M226xS/H

        Jumper Block CNH1
         1-2   ON   LED Display with SCSI Bus activity
               OFF  LED Display with READY

         3-4   ON   MANUFACTURING
         5-6   ON   MANUFACTURING
         7-8   ON   MANUFACTURING
         9-10  ON   MANUFACTURING
        11-12  ON   CHECK CONDITION on Power Up or Reset
               OFF  No CHECK CONDITION on Power Up or Reset
        13-14  15-16     ACK WAIT MONITOR    SELECTION TIME MONITOR
         ON     ON       Unlimited           250MS, 128 Retries
         ON     OFF      30 TO 60 Sec        250MS, 10 Retries
         OFF    ON       30 TO 60 Sec        250MS, Unlimited Retries
         OFF    OFF      1 TO 2 Sec          1MS, 10 Retries

        CNH2
         1-2   ON   Inquiry data is SCSI-2
               OFF  Inquiry data is SCIS-1/CCS
         3-4   ON   SAVE DATA POINTERS on disconnection is issued
               OFF  SAVE DATA POINTERS on disconnection is not issued
         5-6   ON   CHECK CONDITION on MODE SELECT rounding not issued
               OFF  CHECK CONDITION on MODE SELECT rounding is issued
         7-8   ON   PER Default = 0
               OFF  PER Default = 1
         9-10  ON   MOTOR START on Power on
               OFF  MOTOR START on Command
        11-12  ON   Bus Parity checked
               OFF  Bus Parity not checked
        13-14  ON   SYNCH xfer rate = 1.5 TO 4.0MBYTES
               OFF  SYNCH xfer rate = 1.5 TO 2.67MBYTES
        15-16  ON   SYNCH xfer can be initiated by TARGET
               OFF  SYNCH xfer cannot be initiated by TARGET

        CNH3
         1-2   ON   MANUFACTURING
         3-4   ON   MANUFACTURING
         5-6   ON   MANUFACTURING
         7-8   ON   MANUFACTURING
         9-10  11-12     DEVICE TYPE
         OFF    OFF      M2261S/H
         ON     OFF      M2262S/H
         OFF    ON       M2263S/H
        13-14  ON   MANUFACTURING
        15-16  ON   MANUFACTURING

       CNH4
         1-2   3-4  TERMINATING POWER
         ON    ON   Connects TERMPWR pin, IDD terminating resistor and
                    IDD power.
         OFF   ON   Connects IDD terminating resistor and IDD power.
         ON    OFF  Connects TERMPWR pin and IDD terminating resistor.

       CN3/CN9
        1-2    ON   DRIVE Operates normally
               OFF  DRIVE executes DIAGNOSTICS
        3-4    ON   MANUFACTURING
        5-6    ON   Read Ahead Cache enabled
               OFF  Read Ahead Cache disabled
        7-8    ON   SCSI Time Monitoring is executed
               OFF  SCSI Time Monitoring is not executed
        9-10   11-12     13-14     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


       ALL OTHER VISIBLE PINS ARE TEST POINTS AND NOT JUMPERS.