User manual MAXTOR MARATHON 420SL

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon SL Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon SL Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ©1995 Seagate Technology, Inc. A August 16, 1995 Seagate, Seagate Technology and the Seagate logo are registered trademarks of Seagate Technology, Inc. [. . . ] Operation with noncertified assemblies is likely to result in interference with radio and television reception. This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the manufacturer's instructions, may cause interference to radio and television reception. This equipment is designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television, which can be determined by turning the equipment on and off, you are encouraged to try one or more of the following corrective measures: · Reorient the receiving antenna. · Plug the computer into a different outlet so that the receiver and computer are on different branch outlets. If necessary you should consult your dealer or an experienced radio/television technician for additional suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission: 14 Marathon 420sl Product Manual, August 1995 How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Superintendent of Documents, US Government Printing Office, Washington, DC 20402. Refer to publication number 004-000-00345-4. Marathon 420sl Product Manual, August 1995 15 2. 0 Drive mounting and configuration 2. 1 Handling and static-discharge precautions After unpacking, and before installation, the drive may be exposed to potential handling and ESD hazards. It is mandatory that you observe standard static-discharge precautions. Avoid contact with the printed circuit board, all electronic components and the interface connector. Always rest the drive on a padded antistatic surface until you mount it in the host system. 2. 2 Jumper settings 2. 2. 1 Master/slave configuration You must establish a master/slave relationship between two drives attached to a single AT bus. You can configure a drive to become a master or slave by setting the master/slave jumpers, as described below and shown in Figure 2 on page 16. Alternatively, you can configure the drive as a master or slave using the cable select option. This requires a specialized daisy-chain cable that grounds pin 28 (CSEL) on one of its two drive connectors. If you attach the drive to the grounded CSEL connector, it becomes a master. If you attach the drive to the ungrounded CSEL connector, it becomes a slave. To use this option, the host system and both drives must support cable select and both drives must be configured for cable select. To configure a Marathon 420sl for cable select, install both master/slave jumpers. For the host to recognize the slave drive using the DASP­ signal, the slave drive must assert the DASP­ signal at power up, and the master drive must monitor DASP­ at power up. 16 Marathon 420sl Product Manual, August 1995 Master/slave configuration jumpers Pin 1 B A D C Pin 20 removed for keying Circuit board Drive is master; slave may be detected using DASP­ signal Drive is master; Seagate slave drive present Drive is slave; Seagate master drive present Use CSEL pin grounding to differentiate master from slave Figure 2. Connector and master/slave jumper setup for the Marathon 420sl Marathon 420sl Product Manual, August 1995 Jumper for pins A and B Jumper for pins C and D 17 Configuration Drive is master; slave drive may be detected using DASP­ signal. [. . . ] These drives also support the use of the IORDY signal to provide reliable high-speed data transfers. The drives can differentiate between a hard reset and a soft reset while in Sleep mode. You can use a daisy-chain cable to connect two drives to a single AT host bus. For detailed information regarding the ATA interface, see the ATA-2 Draft Proposed American National Standard, document X3T10/948D (subsequently referred to in this manual as the Draft Proposed ATA-2 Standard). 3. 1 ATA interface signals and connector pins Figure 5 on page 24 summarizes the signals on the ATA interface connector that are supported by the Marathon 420sl. [. . . ]