Quantum Computer Drive Atlas II User Guide

Atlas II  
Jumper Settings  
50-pin Jumper Settings  
Jumper Settings  
The following describes the jumper options and settings available on the Maxtor® Atlas™ II disk drive.  
Maxtor Atlas II was developed by Quantum Corporation prior to its merger with Maxtor.  
Termination Enable (TE)  
Enable termination  
Disable termination  
TE jumper on  
TE jumper off  
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Atlas II  
Jumper Settings  
28-Pin Secondary Option Connector  
Pin  
Signal  
Pin  
Signal  
1
2
A0  
logic_gnd  
logic_gnd  
logic_gnd  
key (blank)  
Spindle Sync  
unused  
3
4
A1  
5
6
A2  
7
8
Fault LED  
Busy LED  
+5VDC out  
Delay Spin  
Stagger Spin  
Write Protect  
Spindle Sync  
9
10  
12  
14  
16  
18  
20  
11  
13  
15  
17  
19  
logic_gnd  
logic_gnd  
logic_gnd  
logic_gn  
The drawing above displays the jumper block physical location and pin definitions.  
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Atlas II  
Jumper Settings  
SCSI ID Settings  
The following table identifies the various SCSI ID values and the jumper positions required to set them.  
A1  
A2  
Drive ID  
A0  
ID 0  
ID 1  
ID 2  
ID 3  
ID 4  
ID 5  
ID 6  
ID 7  
OFF  
ON  
OFF  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
ON  
OFF  
ON  
ON  
OFF  
ON  
OFF  
OFF  
ON  
ON  
OFF  
ON  
ON  
ON  
ON  
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Atlas II  
Jumper Settings  
68-pin Jumper Settings  
Jumper Settings  
The following describes the jumper options and settings available on the Maxtor® Atlas™ II disk drive. Maxtor Atlas II was  
developed by Quantum Corporation prior to its merger with Maxtor.  
Termination Enable (TE)  
Enable termination  
Disable termination  
TE jumper on  
TE jumper off  
Note: Termination enable available on SE version only.  
Termination Power (TP)  
Enable termination power  
TP jumper on  
TP jumper off  
Disable termination power  
SCSI ID (A3, A2, A1, A0)  
Set drive SCSI ID  
See ID settings table below  
Delay Spin (DS)  
SP jumper off  
SP jumper on  
Enable spin delay  
Disable spin delay  
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Atlas II  
Jumper Settings  
Stagger Spin  
Enable spin stagger  
Disable spin stagger  
SS jumper on  
SS jumper off  
Write Protect  
Enable Write Protection  
Disable Write Protection  
WP jumper on  
WP jumper off  
Jumper Locations  
The Atlas II wide disk drive has two locations where user configurable jumpers are found. The primary jumper block (Front  
option connector J3) for the Atlas II wide is found on the front edge of the disk drive printed circuit board. Using these  
jumper pins you can establish the various drive configuration options. The secondary option jumper block provides an  
alternate method for setting primary drive features. The alternate jumper block is located at the rear of the drive and is  
incorporated into the SCSI cable connector.  
The termination power option setting is located on the front edge of the printed circuit board and is adjacent to the J3  
connector.  
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Atlas II  
Jumper Settings  
Pin  
Signal  
Signal  
Pin  
1
A3  
2
logic_gnd  
3
A2  
4
logic_gnd  
5
A1  
6
logic_gnd  
7
A0  
8
logic_gnd  
9
Key (blank)  
Delay Spin  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
Fault LED  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
logic_gnd  
Logic ground  
Spindle Sync  
Busy Led  
Enable Active Termination  
Spindle Sync  
+5VDC out  
logic_gnd  
Write Protect  
Stagger Spin  
Enable Narrow Mode  
Disable Sync Negotiation  
Disable SCSI Parity  
Disable Unit Attention  
Customize  
logic_gnd  
logic_gnd  
logic_gnd  
logic_gnd  
logic_gnd  
logic_gnd  
Pin  
Signal  
Pin  
Signal  
1
A0  
2
Fault LED  
logic_gnd  
logic_gnd  
Busy LED  
logic_gnd  
(reserved)  
3
A1  
4
5
A2  
6
7
A3  
8
9
Enable Termination  
+5VDC out  
10  
12  
11  
Note: Enable Termination setting is not supported on the following differential drives:  
Atlas II 2.2GB WD  
Atlas II 4.5GB WD  
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Atlas II  
Jumper Settings  
Atlas II 9.1GB WD SCSI ID SettingsThe following table identifies the various SCSI ID values and the jumper positions  
required to set them.  
Drive ID  
A0  
A1  
A2  
A3  
ID 0  
ID 1  
OFF  
ON  
OFF  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
ON  
ID 2  
OFF  
ON  
ID 3  
ON  
ID 4  
OFF  
ON  
OFF  
OFF  
ON  
ID 5  
ON  
ID 6  
OFF  
ON  
ON  
ID 7  
ON  
ON  
ID 8  
OFF  
ON  
OFF  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
ON  
ID 9  
ON  
ID 10  
ID 11  
ID 12  
ID 13  
ID 14  
ID 15  
OFF  
ON  
ON  
ON  
ON  
OFF  
ON  
OFF  
OFF  
ON  
ON  
ON  
ON  
OFF  
ON  
ON  
ON  
ON  
ON  
ON  
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