2 | Marathon 420sl Installation Guide, August 1995 |
only facilities authorized to repair Seagate drives. Seagate does not sanction any third-party repair facilities.
Warranty. See your authorized Seagate distributor or dealer.
Configuring the drive
1.Put on a grounded wrist strap. Wear the grounded wrist strap throughout the installation procedure.
2.Install master/slave jumpers. In a two-drive system, you need to designate one drive as the master, or drive 0, and the other drive as the slave, or drive 1. To do this, install the master/slave jumpers as shown in Figure 1. In a one-drive system, configure the drive as a master (no jumpers installed).
Alternatively, you can configure the drive as a master or slave using the cable select option. Cable selection re- quires a special 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 mas- ter. If you attach the drive to the ungrounded CSEL con- nector, 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, as shown in Figure 1.
Attaching cables
This drive is designed for a host computer that supplies interface signals and +5V power through a single 44-pin connector and cable. If your computer has a fixed connector that attaches directly to the drive, skip ahead to the following section, “Mount- ing the drive.” Otherwise, attach the interface/power cable as described on page 4.
