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QUANTUM ATLAS II SERIES: XP32181 SCA, XP34361 SCA, XP39100 SCA

Interface: SCSI-3 80-pin
Size: 3.5 in. third height (XP9100R is half height)
View: Bottom

SPINDLE MOTOR CONFIGURATION
Settings Pin 38 Pin 78
Spindle motor starts on power up open open
Spindle motor delay enabled (Y sec. x (SCSI ID +1)) open ground
Spindle motor starts on command only ground open

 
DRIVE SELECTION
Drive ID ID0/pin 39 ID1/pin 79 ID2/pin 40 ID3/pin 80
0 open open open open
1 ground open open open
2 open ground open open
3 ground ground open open
4 open open ground open
5 ground open ground open
6 open ground ground open
7 ground ground ground open
8 open open open ground
9 ground open open ground
10 open ground open ground
11 ground ground open ground
12 open open ground ground
13 ground open ground ground
14 open ground ground ground
15 ground ground ground ground

 
CONNECTIONS
Function Location
Drive active LED pin 77
Spindle sync connection pin 37

 
MISCELLANEOUS TECHNICAL NOTES
a)  The 80-pin SCA connector is configured with a special cable that provides the appropriate signals to the desired pins.
b)  SCA drives do not provide TERMPWR, active termination or write protect.
c)  Pins not mentioned are unidentified.

 

QUANTUM ATLAS II XP32275S, XP34550S, XP39100S

QUANTUM ATLAS II XP32275D, XP34550D, XP39100D

Interface Ultra SCSI, Fiber Channel
Size 3.5 in. quarter height
View Top

DRIVE SELECTION - J3
SCSI ID Jumper 1 Jumper 2 Jumper 3 Jumper 4
0 open open open open
1 open open open closed
2 open open closed open
3 open open closed closed
4 open closed open open
5 open closed open closed
6 open closed closed open
7 open closed closed closed
8 closed open open open
9 closed open open closed
10 closed open closed open
11 closed open closed closed
12 closed closed open open
13 closed closed open closed
14 closed closed closed open
15 closed closed closed closed

 
USER CONFIGURABLE SETTINGS
Function Label Position
Spindle motor starts on power-up J3/jumper 6 closed
Spindle motor starts on command only J3/jumper 6 open
Active termination enabled J3/jumper 7 closed
Active termination disabled J3/jumper 7 open
Write protect disabled J3/jumper 10 closed
Write protect enabled J3/jumper 10 open
Stagger spin J3/jumper 11 Unidentified
Narrow mode enabled J3/jumper 12 closed
Wide mode enabled J3/jumper 12 open
Synchronous negotiation disabled J3/jumper 13 closed
Synchronous negotiation enabled J3/jumper 13 open
SCSI parity check disabled J3/jumper 14 closed
SCSI parity check enabled J3/jumper 14 open
Unit attention disabled J3/jumper 15 closed
Unit attention enabled J3/jumper 15 open
Customize J3/jumper 16 unidentified
Note: The exact purpose and settings of J3/jumper 11 and J3/jumper 16 are unidentified. "D" revisions of these drives to not support active termination. J3 pin 14 supplies logical ground for "D" versions of these drives.

 
TERMINATION POWER SELECTION
Setting J7
TERMPWR supplied by drive closed
TERMPWR supplied by SCSI interface open

 
CONNECTIONS
Function Label Function Label
Not used J3/pin 9 Busy LED J3/pin 17
Fault LED J3/pin 10 +5 VDC J3/pin 18
Spindle Synch J3/pins 15 & 16    

 
OPTION CONNECTOR CN1 PINOUT
Function Label Function Label
ID 0 CN1/pin 1 Fault LED out CN1/pin 7
ID 1 CN1/pin 2 Logic ground CN1/pin 8
ID 2 CN1/pin 3 Logic ground CN1/pin 9
ID 3 CN1/pin 4 Busy LED out CN1/pin 10
Enable termination CN1/pin 5 Logic ground CN1/pin 11
+5 VDC out CN1/pin 6 Reserved for future use CN1/pin 12

 
DIAGNOSTIC LED(S)
LED Significance
LED1 busy LED
LED2 fault LED

 
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